MAX3043EUE-T中文资料

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MAX3280EAUK+T中文资料

Features
o ESD Protection: ±15kV–Human Body Model ±6kV–IEC 1000-4-2, Contact Discharge ±12kV–IEC 1000-4-2, Air-Gap Discharge
o Guaranteed 52Mbps Data Rate o Guaranteed 15ns Receiver Propagation Delay o Guaranteed 2ns Receiver Skew o Guaranteed 8ns Package-to-Package Skew Time o VL Pin for Connection to FPGAs/ASICs o Allow Up to 128 Transceivers on the Bus
Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V) Receiver Output Voltage
(RO) (MAX3284E) .....................................-0.3V to (VL + 0.3V) Receiver Output Short-Circuit Current .......................Continuous
ENABLE —
Active High Active Low
—
DATA RATE 52Mbps 52Mbps 52Mbps
52Mbps (Note 1)
PACKAGE 5-Pin SOT23 6-Pin SOT23 6-Pin SOT23 6-Pin SOT23
________________________________________________________________ Maxim Integrated Products 1

MAX4173TEUT-T中文资料

Applications
Notebook Computers
Portable/Battery-Powered Systems
Smart Battery Packs/Chargers
Cell Phones
Power-Management Systems
General System/Board-Level Current Monitoring
The combination of three gain versions and a userselectable external sense resistor sets the full-scale current reading. This feature offers a high level of integration, resulting in a simple and compact currentsense solution.
+20V/V (MAX4173T) +50V/V (MAX4173F) +100V/V (MAX4173H) ♦ ±0.5% Full-Scale Accuracy ♦ ±0.3mV Input Offset Voltage (MAX4173T) ♦ 420µA Supply Current ♦ Wide 1.7MHz Bandwidth (MAX4173T) ♦ +3V to +28V Operating Supply ♦ Available in Space-Saving SOT23-6 Package
Typical Operating Circuit
0 TO +28V
VSENSE
+3V TO +28V 0.1µF

MAX3440EESA中文资料

General DescriptionThe MAX3440E–MAX3444E fault-protected RS-485 and J1708 transceivers feature ±60V protection from signal faults on communication bus lines. Each device contains one differential line driver with three-state output and one differential line receiver with three-state input. The 1/4-unit-load receiver input impedance allows up to 128 trans-ceivers on a single bus. The devices operate from a 5V supply at data rates of up to 10Mbps. True fail-safe inputs guarantee a logic-high receiver output when the receiver inputs are open, shorted, or connected to an idle data line.Hot-swap circuitry eliminates false transitions on the data bus during circuit initialization or connection to a live backplane. Short-circuit current-limiting and ther-mal shutdown circuitry protect the driver against exces-sive power dissipation, and on-chip ±15kV ESD protection eliminates costly external protection devices.The MAX3440E–MAX3444E are available in 8-pin SO and PDIP packages and are specified over industrial and automotive temperature ranges.ApplicationsRS-422/RS-485 Communications Truck and Trailer Applications Industrial NetworksTelecommunications Systems Automotive Applications Features♦±15kV ESD Protection ♦±60V Fault Protection♦Guaranteed 10Mbps Data Rate (MAX3441E/MAX3443E)♦Hot Swappable for Telecom Applications ♦True Fail-Safe Receiver Inputs♦Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission(MAX3440E/MAX3442E/MAX3444E)♦Allow Up to 128 Transceivers on the Bus ♦-7V to +12V Common-Mode Input Range♦Automotive Temperature Range (-40°C to +125°C)♦Industry-Standard PinoutMAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers________________________________________________________________Maxim Integrated Products 1Pin Configurations and Typical Operating CircuitsOrdering Information19-2666; Rev 1; 12/05For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at .Ordering Information continued at end of data sheet.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Voltages Referenced to GNDV CC ........................................................................................+7V FAULT, DE/RE, RE , DE, DE , DI, TXD..........-0.3V to (V CC + 0.3V)A, B (Note 1)........................................................................±60V RO..............................................................-0.3V to (V CC + 0.3V)Short-Circuit Duration (RO, A, B)...............................Continuous Continuous Power Dissipation (T A = +70°C)8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW 8-Pin PDIP (derate 9.09mW/°C above +70°C).............727mWOperating Temperature RangesMAX344_EE_ _...............................................-40°C to +85°C MAX344_EA_ _.............................................-40°C to +125°C Storage Temperature Range.............................-65°C to +150°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°CDC ELECTRICAL CHARACTERISTICSNote 1:A, B must be terminated with 54Ωor 100Ωto guarantee ±60V fault protection.MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 TransceiversDC ELECTRICAL CHARACTERISTICS (continued)(V = +4.75V to +5.25V, T = T to T , unless otherwise noted. Typical values are at V = +5V and T = +25°C.)M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 4_______________________________________________________________________________________SWITCHING CHARACTERISTICS (MAX3440E/MAX3442E/MAX3444E)MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers_______________________________________________________________________________________5SWITCHING CHARACTERISTICS (MAX3441E/MAX3443E)(V CC = +4.75V to +5.25V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5V and T A = +25°C.)Note 3:The short-circuit output current applies to peak current just before foldback current limiting; the short-circuit foldback outputcurrent applies during current limiting to allow a recovery from bus contention.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 6_______________________________________________________________________________________RECEIVER OUTPUT CURRENT vs. OUTPUT LOW VOLTAGEM A X 3443E t o c 04OUTPUT LOW VOLTAGE (V)R E C E I V E R O U T P U T C U R R E N T (m A )5.04.50.5 1.0 1.5 2.5 3.0 3.52.0 4.051015202530354000RECEIVER OUTPUT CURRENT vs. OUTPUT HIGH VOLTAGEM A X 3443E t o c 05OUTPUT HIGH VOLTAGE (V)R E C E I V E R O U T P U T C U R R E N T (m A )5.04.50.5 1.0 1.5 2.5 3.0 3.52.0 4.051015202530354000RECEIVER OUTPUT VOLTAGEvs. TEMPERATURETEMPERATURE (°C)R E C E I V E R O U T P U T V O L T A G E (V )110956580-105203550-250.51.01.52.02.53.03.54.04.55.0-40125DRIVER OUTPUT CURRENTvs. DIFFERENTIAL OUTPUT VOLTAGEDIFFERENTIAL OUTPUT VOLTAGE (V A - V B ) (V)D R I VE R O U T P U T C U R R E N T (m A )0.51.0 1.52.53.0 3.52.010203040506070800DIFFERENTIAL OUTPUT VOLTAGEvs. TEMPERATURETEMPERATURE (°C)D I F FE R E N T I A L O U T P U T V O L T A G E (V )110956580-105203550-250.51.01.52.02.53.03.50-40125Typical Operating Characteristics(V CC = +5V, T A = +25°C, unless otherwise noted.)NO-LOAD SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )1109580655035205-10-251234560-40125NO-LOAD SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )1109580655035205-10-2548121620240-40125SHUTDOWN SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (μA )1109580655035205-10-250.11100.01-40125A, B CURRENTvs. A, B VOLTAGE (TO GROUND)A, B VOLTAGE (V)A ,BC U R R E N T (μA )40306050-50-40-30-10010-2020-800-400-1600-2000-12000400800120016002000-60MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 TransceiversOD OCFigure 3. Driver Propagation TimesTest Circuits and WaveformsM A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 8_______________________________________________________________________________________Figure 7. Receiver Propagation DelayFigure 5. Driver Enable and Disable TimesMAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers_______________________________________________________________________________________9Note 4:The input pulse is supplied by a generator with the following characteristics: f = 5MHz, 50% duty cycle; tr ≤6ns; Z 0= 50Ω.Note 5:C L includes probe and stray capacitance.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 10______________________________________________________________________________________MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________11Table 5. MAX3440E/MAX3441E (RS-485/RS-422)Detailed DescriptionThe MAX3440E–MAX3444E fault-protected transceivers for RS-485/RS-422 and J1708 communication contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all drivers disabled (see the True Fail-Safe section). All devices have a hot-swap input structure that prevents disturbances on the differential signal lines when a circuit board is plugged into a hot back-plane (see the Hot-Swap Capability section). The MAX3440E/MAX3442E/MAX3444E feature a reduced slew-rate driver that minimizes EMI and reduces reflec-tions caused by improperly terminated cables, allowing error-free data transmission up to 250kbps (see the Reduced EMI and Reflections section). The MAX3441E/MAX3443E drivers are not slew-rate limited, allowing transmit speeds up to 10Mbps.DriverThe driver accepts a single-ended, logic-level input (DI) and transfers it to a differential, RS-485/RS-422level output (A and B). Deasserting the driver enable places the driver outputs (A and B) into a high-imped-ance state.ReceiverThe receiver accepts a differential, RS-485/RS-422level input (A and B), and transfers it to a single-ended,logic-level output (RO). Deasserting the receiver enable places the receiver inputs (A and B) into a high-imped-ance state (see Tables 1–7).Low-Power Shutdown(MAX3442E/MAX3443E/MAX3444E)The MAX3442E/MAX3443E/MAX3444E offer a low-power shutdown mode. Force DE low and RE high to shut down the MAX3442E/MAX3443E. Force DE and RE high to shut down the MAX3444E. A time delay of 50ns prevents the device from accidentally entering shutdown due to logic skews when switching between transmit and receive modes. Holding DE low and RE high for at least 800ns guarantees that the MAX3442E/MAX3443E enter shutdown. In shutdown, the devices consume a maxi-mum 20µA supply current.±60V Fault ProtectionThe driver outputs/receiver inputs of RS-485 devices in industrial network applications often experience voltage faults resulting from shorts to the power grid that exceed the -7V to +12V range specified in the EIA/TIA-485 standard. In these applications, ordinary RS-485devices (typical absolute maximum -8V to +12.5V)require costly external protection devices. To reduce system complexity and eliminate this need for external protection, the driver outputs/receiver inputs of the MAX3440E–MAX3444E withstand voltage faults up to ±60V with respect to ground without damage.Protection is guaranteed regardless whether the device is active, shut down, or without power.True Fail-SafeThe MAX3440E–MAX3444E use a -50mV to -200mV differential input threshold to ensure true fail-safe receiver inputs. This threshold guarantees the receiver outputs a logic high for shorted, open, or idle data lines. The -50mV to -200mV threshold complies with the ±200mV threshold EIA/TIA-485 standard.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 12______________________________________________________________________________________±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against ESD encountered during handling and assembly. The MAX3440E–MAX3444E receiver inputs/driver outputs (A, B) have extra protection against static electricity found in normal operation. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ±15kV ESD without damage. After an ESD event, the MAX3440E–MAX3444E continue working without latchup.ESD protection can be tested in several ways. The receiver inputs are characterized for protection to ±15kV using the Human Body Model.ESD Test ConditionsESD performance depends on a number of conditions.Contact Maxim for a reliability report that documents test setup, methodology, and results.Human Body ModelFigure 9a shows the Human Body Model, and Figure 9b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of inter-est, which is then discharged into the device through a 1.5k Ωresistor.Driver Output ProtectionTwo mechanisms prevent excessive output current and power dissipation caused by faults or bus contention.The first, a foldback current limit on the driver output stage, provides immediate protection against short cir-cuits over the whole common-mode voltage range. The second, a thermal shutdown circuit, forces the driver out-puts into a high-impedance state if the die temperature exceeds +160°C. Normal operation resumes when the die temperature cools to +140°C, resulting in a pulsed output during continuous short-circuit conditions.MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________13Figure 9a. Human Body ESD Test ModelM A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 14______________________________________________________________________________________Hot-Swap CapabilityHot-Swap InputsInserting circuit boards into a hot, or powered, back-plane may cause voltage transients on DE, DE/RE, RE ,and receiver inputs A and B that can lead to data errors.For example, upon initial circuit board insertion, the processor undergoes a power-up sequence. During this period, the high-impedance state of the output drivers makes them unable to drive the MAX3440E–MAX3444E enable inputs to a defined logic level. Meanwhile, leak-age currents of up to 10µA from the high-impedance out-put, or capacitively coupled noise from V CC or G ND,could cause an input to drift to an incorrect logic state.To prevent such a condition from occurring, the MAX3440E–MAX3443E feature hot-swap input circuitry on DE, DE/RE, and RE to guard against unwanted dri-ver activation during hot-swap situations. The MAX3444E has hot-swap input circuitry only on RE .When V CC rises, an internal pulldown (or pullup for RE )circuit holds DE low for at least 10µs, and until the cur-rent into DE exceeds 200µA. After the initial power-up sequence, the pulldown circuit becomes transparent,resetting the hot-swap tolerable input.Hot-Swap Input CircuitryAt the driver-enable input (DE), there are two NMOS devices, M1 and M2 (Figure 10). When V CC ramps from zero, an internal 15µs timer turns on M2 and sets the SR latch, which also turns on M1. Transistors M2, a 2mA current sink, and M1, a 100µA current sink, pull DE to GND through a 5.6k Ωresistor. M2 pulls DE to the disabled state against an external parasitic capaci-tance up to 100pF that may drive DE high. After 15µs,the timer deactivates M2 while M1 remains on, holding DE low against three-state leakage currents that may drive DE high. M1 remains on until an external current source overcomes the required input current. At this time, the SR latch resets M1 and turns off. When M1turns off, DE reverts to a standard, high-impedance CMOS input. Whenever V CC drops below 1V, the input is reset.A complementary circuit for RE uses two PMOS devices to pull RE to V CC .__________Applications Information128 Transceivers on the BusThe MAX3440E–MAX3444E transceivers 1/4-unit-load receiver input impedance (48k Ω) allows up to 128transceivers connected in parallel on one communica-tion line. Connect any combination of these devices,and/or other RS-485 devices, for a maximum of 32-unit loads to the line.Reduced EMI and ReflectionsThe MAX3440E/MAX3442E/MAX3444E are slew-rate limited, minimizing EMI and reducing reflections caused by improperly terminated cables. Figure 11shows the driver output waveform and its Fourier analy-sis of a 125kHz signal transmitted by a MAX3443E.High-frequency harmonic components with large ampli-tudes are evident.Figure 12 shows the same signal displayed for a MAX3442E transmitting under the same conditions.Figure 12’s high-frequency harmonic components are much lower in amplitude, compared with Figure 11’s,and the potential for EMI is significantly reduced.Figure 10. Simplified Structure of the Driver Enable Pin (DE)In general, a transmitter’s rise time relates directly to the length of an unterminated stub, which can be dri-ven with only minor waveform reflections. The following equation expresses this relationship conservatively:Length = t RISE / (10 x 1.5ns/ft)where t RISE is the transmitter’s rise time.For example, the MAX3442E’s rise time is typically 800ns, which results in excellent waveforms with a stub length up to 53ft. A system can work well with longer unterminated stubs, even with severe reflections, if the waveform settles out before the UART samples them.RS-485 ApplicationsThe MAX3440E–MAX3443E transceivers provide bidi-rectional data communications on multipoint bus trans-mission lines. Figures 13 and 14show a typical network applications circuit. The RS-485 standard covers line lengths up to 4000ft. To minimize reflections and reduce data errors, terminate the signal line at both ends in its characteristic impedance, and keep stub lengths off the main line as short as possible.J1708 ApplicationsThe MAX3444E is designed for J1708 applications. To configure the MAX3444E, connect DE and RE to G ND.Connect the signal to be transmitted to TXD. Terminate the bus with the load circuit as shown in Figure 15. The drivers used by SAE J1708 are used in a dominant-mode application. DE is active low; a high input on DE places the outputs in high impedance. When the driver is disabled (TXD high or DE high), the bus is pulled high by external bias resistors R1 and R2. Therefore, a logic level high is encoded as recessive. When all transceivers are idle in this configuration, all receivers output logic high because of the pullup resistor on A and pulldown resistor on B. R1 and R2 provide the bias for the recessive state.C1 and C2 combine to form a 6MHz lowpass filter, effec-tive for reducing FM interference. R2, C1, R4, and C2combine to form a 1.6MHz lowpass filter, effective for reducing AM interference. Because the bus is untermi-nated, at high frequencies, R3 and R4 perform a pseudotermination. This makes the implementation more flexible, as no specific termination nodes are required at the ends of the bus.MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________155.00MHz 500kHz/div 020dB/div Figure 11. Driver Output Waveform and FFT Plot of MAX3443E Transmitting a 125kHz Signal 5.00MHz500kHz/div 020dB/divFigure 12. Driver Output Waveform and FFT Plot of MAX3442E Transmitting a 125kHz SignalM A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 16______________________________________________________________________________________Figure 13. MAX3440E/MAX3441E Typical RS-485 NetworkFigure 14. MAX3442E/MAX3443E Typical RS-485 NetworkMAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 TransceiversFigure 15. J1708 Application CircuitChip InformationTRANSISTOR COUNT: 310PROCESS: BiCMOSPin Configurations and Typical Operating Circuits (continued)M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 18______________________________________________________________________________________Ordering Information (continued)MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________19Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. N o circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.20____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2005 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)____________________Revision HistoryPages changed at Rev 1: 1, 6, 11。

MAX3073EESD-T中文资料

General DescriptionThe MAX3070E–MAX3079E 3.3V, ±15kV ESD-protected,RS-485/RS-422 transceivers feature one driver and one receiver. These devices include fail-safe circuitry, guar-anteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3070E–MAX3079E include a hot-swap capability to eliminate false transitions on the bus during power-up or hot insertion.The MAX3070E/MAX3071E/MAX3072E feature reduced slew-rate drivers that minimize EMI and reduce reflec-tions caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX3073E/MAX3074E/MAX3075E also feature slew-rate-limited drivers but allow transmit speeds up to 500kbps. The MAX3076E/MAX3077E/MAX3078E driver slew rates are not limited, making transmit speeds up to 16Mbps possible. The MAX3079E slew rate is pin selectable for 250kbps, 500kbps, and 16Mbps.The MAX3072E/MAX3075E/MAX3078E are intended for half-duplex communications, and the MAX3070E/MAX3071E/MAX3073E/MAX3074E/MAX3076E/MAX3077E are intended for full-duplex communications. The MAX3079E is selectable for half-duplex or full-duplex operation. It also features independently programmable receiver and transmitter output phase through separate pins.The MAX3070E–MAX3079E transceivers draw 800µA of supply current when unloaded or when fully loaded with the drivers disabled. All devices have a 1/8-unit load receiver input impedance, allowing up to 256transceivers on the bus.ApplicationsLighting Systems Industrial Control Telecom Security Systems InstrumentationFeatureso 3.3V Operationo Electrostatic Discharge (ESD) Protection for RS-485 I/O Pins±15kV Human Body Model o True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility o Hot-Swap Input Structure on DE and RE o Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission(MAX3070E–MAX3075E/MAX3079E)o Low-Current Shutdown Mode (Except MAX3071E/MAX3074E/MAX3077E)o Pin-Selectable Full-/Half-Duplex Operation (MAX3079E)o Phase Controls to Correct for Twisted-Pair Reversal (MAX3079E)o Allow Up to 256 Transceivers on the Bus o Available in Industry-Standard 8-Pin SO PackageMAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers________________________________________________________________Maxim Integrated Products 1Ordering Information19-2668; Rev 1; 1/03For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Selector Guide, Pin Configurations, and Typical Operating Circuits appear at end of data sheet.Ordering Information continued at end of data sheet.M A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSDC ELECTRICAL CHARACTERISTICSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.(All voltages referenced to GND)Supply Voltage (V CC ).............................................................+6V Control Input Voltage (RE , DE, SLR,H/F , TXP, RXP)......................................................-0.3V to +6V Driver Input Voltage (DI)...........................................-0.3V to +6V Driver Output Voltage (Z, Y, A, B).............................-8V to +13V Receiver Input Voltage (A, B)....................................-8V to +13V Receiver Input VoltageFull Duplex (A, B)..................................................-8V to +13V Receiver Output Voltage (RO)....................-0.3V to (V CC + 0.3V)Driver Output Current.....................................................±250mAContinuous Power Dissipation (T A = +70°C)8-Pin SO (derate 5.88mW/°C above +70°C).................471mW 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C).....727mW 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW 14-Pin Plastic DIP (derate 10.0mW/°C above +70°C)...800mW Operating Temperature RangesMAX307_EE_ _................................................-40°C to +85°C MAX307_EA_ _..............................................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________3DC ELECTRICAL CHARACTERISTICS (continued)Note 1:All currents into the device are positive. All currents out of the device are negative. All voltages are referred to deviceground, unless otherwise noted.Note 2:∆V OD and ∆V OC are the changes in V OD and V OC , respectively, when the DI input changes state.Note 3:The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback out-put current applies during current limiting to allow a recovery from bus contention.M A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 4_______________________________________________________________________________________DRIVER SWITCHING CHARACTERISTICSMAX3070E/MAX3071E/MAX3072E/MAX3079E with SRL = UNCONNECTED (250kbps)RECEIVER SWITCHING CHARACTERISTICSMAX3070E/MAX3071E/MAX3072E/MAX3079E with SRL = UNCONNECTED (250kbps)(V CC = 3.3V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = 3.3V and T A = +25°C.)MAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________5DRIVER SWITCHING CHARACTERISTICSMAX3073E/MAX3074E/MAX3075E/MAX3079E with SRL = V CC (500kbps)RECEIVER SWITCHING CHARACTERISTICSMAX3073E/MAX3074E/MAX3075E/MAX3079E with SRL = V CC (500kbps)M A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 6_______________________________________________________________________________________DRIVER SWITCHING CHARACTERISTICSMAX3076E/MAX3077E/MAX3078E/MAX3079E with SRL = GND (16Mbps)RECEIVER SWITCHING CHARACTERISTICSMAX3076E/MAX3077E/MAX3078E/MAX3079E with SRL = GND (16Mbps)MAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________7SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )100755025-250.60.70.80.91.00.5-50125OUTPUT CURRENTvs. RECEIVER OUTPUT HIGH VOLTAGEM A X 3070E t o c 02OUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )3.02.52.01.51.00.55101520253000 3.5OUTPUT CURRENTvs. RECEIVER OUTPUT LOW VOLTAGEM A X 3070E t o c 03OUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )3.02.52.01.51.00.551015202530350 3.5RECEIVER OUTPUT HIGH VOLTAGEvs. TEMPERATURETEMPERATURE (°C)O U T P U T H I G H V O L T A G E (V )100755025-253.053.103.153.203.253.303.00-50125RECEIVER OUTPUT LOW VOLTAGEvs. TEMPERATURETEMPERATURE (°C)O U T P U T L O W V O L T A G E (V )10075-25025500.10.20.30.40.50.60.70.8-50125DRIVER OUTPUT CURRENTvs. DIFFERENTIAL OUTPUT VOLTAGEM A X 3070E t o c 06DIFFERENTIAL OUTPUT VOLTAGE (V)O U T P U T C U R R E N T (m A )3.02.51.5 2.01.00.51020304050607080901000 3.5DRIVER DIFFERENTIAL OUTPUT VOLTAGEvs. TEMPERATURETEMPERATURE (°C)D I F FE R E N T I A L O U T P U T V O L T A G E (V )100752550-251.701.801.902.002.102.202.302.402.502.601.60-50125OUTPUT CURRENTvs. TRANSMITTER OUTPUT HIGH VOLTAGEOUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )32-6-5-4-2-10-31204060801001201401600-74OUTPUT CURRENTvs. TRANSMITTER OUTPUT LOW VOLTAGEOUTPUT LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )10864220406080100120140160180012Typical Operating Characteristics(V CC = 3.3V, T A = +25°C, unless otherwise noted.)M A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 8_______________________________________________________________________________________SHUTDOWN CURRENT vs. TEMPERATURETEMPERATURE (°C)S H U T D O W N C U R R E N T (µA )100752550-250.20.40.60.81.01.21.41.61.82.00-50125DRIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps)TEMPERATURE (°C)D R I VE R P R O P A G A T I O N D E L A Y (n s )100755025-256007008009001000500-50125DRIVER PROPAGATION DELAY vs. TEMPERATURE (500kbps)TEMPERATURE (°C)D R I V ER P R O P A G A T I O N D E L A Y (n s )100755025-25250300350400450500200-50125DRIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps)TEMPERATURE (°C)D R I VE R P R O P A G A T I O N D E L A Y (n s )100755025-25510152025300-50125RECEIVER PROPAGATION DELAYvs. TEMPERATURE (250kbps AND 500kbps)TEMPERATURE (°C)D R IV E R P R O P A G A T I O N D E L A Y (n s )100755025-253060901201500-50125RECEIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps)TEMPERATURE (°C)R E C E I V E R P R O P A G A T I O N D E L A Y (n s )1007550250-25102030405060700-50125DRIVER PROPAGATION DELAY (250kbps)MAX3070E toc161µs/div V Y - V Z 2V/div DI 2V/divRECEIVER PROPAGATION DELAY(250kbps AND 500kbps)MAX3070E toc17200ns/divV A - V B 1V/divRO 2V/divTypical Operating Characteristics (continued)(V CC = 3.3V, T A = +25°C, unless otherwise noted.)MAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________9Test Circuits and WaveformsDRIVER PROPAGATION DELAY (500kbps)MAX3070E toc18400ns/div V Y - V Z 2V/divDI 2V/divDRIVER PROPAGATION DELAY (16Mbps)MAX3070E toc1910ns/div V Z 1V/divV Y 1V/divDI 2V/divRECEIVER PROPAGATION DELAY (16Mbps)MAX3070E toc2020ns/divV A 1V/divV B 1V/divRO 2V/divTypical Operating Characteristics (continued)(V CC = 3.3V, T A = +25°C, unless otherwise noted.)Figure 2. Driver Timing Test CircuitFigure 3. Driver Propagation DelaysM A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 10______________________________________________________________________________________Test Circuits and Waveforms (continued)DHZ DZH DZH(SHDN)Figure 5. Driver Enable and Disable Times (t DZL , t DLZ , t DLZ(SHDN))MAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversTest Circuits and Waveforms (continued)Figure 6. Receiver Propagation Delay Test CircuitFigure 8. Receiver Enable and Disable TimesM A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX3070E/MAX3073E/MAX3076EPin Description (continued)MAX3071E/MAX3074E/MAX30767EFunction TablesM A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX3072E/MAX3075E/MAX3078EFunction Tables (continued)MAX3079EDetailed Description The MAX3070E–MAX3079E high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all dri-vers disabled (see the Fail-Safe section). The MAX3070E/MAX3072E/MAX3073E/MAX3075E/ MAX3076E/MAX3078E/MAX3079E also feature a hot-swap capability allowing line insertion without erro-neous data transfer (see the Hot Swap Capability section). The MAX3070E/MAX3071E/MAX3072E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX3073E/MAX3074E/MAX3075E also offer slew-rate limits allowing transmit speeds up to 500kbps. The MAX3076E/MAX3077E/MAX3078Es’ dri-ver slew rates are not limited, making transmit speeds up to 16Mbps possible. The MAX3079E’s slew rate is selectable between 250kbps, 500kbps, and 16Mbps by driving a selector pin with a three-state driver.The MAX3072E/MAX3075E/MAX3078E are half-duplex transceivers, while the MAX3070E/MAX3071E/ MAX3073E/MAX3074E/MAX3076E/MAX3077E are full-duplex transceivers. The MAX3079E is selectable between half- and full-duplex communication by driving a selector pin (SRL) high or low, respectively.All devices operate from a single 3.3V supply. Drivers are output short-circuit current limited. Thermal-shutdown cir-cuitry protects drivers against excessive power dissipa-tion. When activated, the thermal-shutdown circuitry places the driver outputs into a high-impedance state.Receiver Input Filtering The receivers of the MAX3070E–MAX3075E, and the MAX3079E when operating in 250kbps or 500kbps mode, incorporate input filtering in addition to input hysteresis. This filtering enhances noise immunity with differential signals that have very slow rise and fall times. Receiver propagation delay increases by 25% due to this filtering.Fail-Safe The MAX3070E family guarantees a logic-high receiver output when the receiver inputs are shorted or open, or when they are connected to a terminated transmission line with all drivers disabled. This is done by setting the receiver input threshold between -50mV and -200mV. If the differential receiver input voltage (A - B) is greater than or equal to -50mV, RO is logic high. If A - B is less than or equal to -200mV, RO is logic low. In the case ofa terminated bus with all transmitters disabled, the receiver’s differential input voltage is pulled to 0V bythe termination. With the receiver thresholds of theMAX3070E family, this results in a logic high with a50mV minimum noise margin. Unlike previous fail-safe devices, the -50mV to -200mV threshold complies withthe ±200mV EIA/TIA-485 standard.Hot-Swap Capability (Except MAX3071E/MAX3074E/MAX3077E)Hot-Swap InputsWhen circuit boards are inserted into a hot, or pow-ered, backplane, differential disturbances to the databus can lead to data errors. Upon initial circuit board insertion, the data communication processor under-goes its own power-up sequence. During this period,the processor’s logic-output drivers are high imped-ance and are unable to drive the DE and RE inputs ofthese devices to a defined logic level. Leakage cur-rents up to ±10µA from the high-impedance state of the processor’s logic drivers could cause standard CMOS enable inputs of a transceiver to drift to an incorrectlogic level. Additionally, parasitic circuit board capaci-tance could cause coupling of V CC or GND to the enable inputs. Without the hot-swap capability, these factors could improperly enable the transceiver’s driveror receiver.When V CC rises, an internal pulldown circuit holds DElow and RE high. After the initial power-up sequence,the pulldown circuit becomes transparent, resetting thehot-swap tolerable input.Hot-Swap Input CircuitryThe enable inputs feature hot-swap capability. At theinput there are two NMOS devices, M1 and M2 (Figure 9). When V CC ramps from zero, an internal 10µstimer turns on M2 and sets the SR latch, which alsoturns on M1. Transistors M2, a 500µA current sink, andM1, a 100µA current sink, pull DE to GND through a5kΩresistor. M2 is designed to pull DE to the disabledstate against an external parasitic capacitance up to100pF that can drive DE high. After 10µs, the timer deactivates M2 while M1 remains on, holding DE low against three-state leakages that can drive DE high. M1 remains on until an external source overcomes the required input current. At this time, the SR latch resetsand M1 turns off. When M1 turns off, DE reverts to a standard, high-impedance CMOS input. Whenever V CCdrops below 1V, the hot-swap input is reset.For RE there is a complementary circuit employing two PMOS devices pulling RE to V CC.MAX3070E–MAX3079E+3.3V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversM A X 3070E –M A X 3079EMAX3079E ProgrammingThe MAX3079E has several programmable operating modes. Transmitter rise and fall times are programma-ble, resulting in maximum data rates of 250kbps,500kbps, and 16Mbps. To select the desired data rate,drive SRL to one of three possible states by using a three-state driver: V CC , GND, or unconnected. F or 250kbps operation, set the three-state device in high-impedance mode or leave SRL unconnected. F or 500kbps operation, drive SRL high or connect it to V CC .F or 16Mbps operation, drive SRL low or connect it to GND. SRL can be changed during operation without interrupting data communications.Occasionally, twisted-pair lines are connected backward from normal orientation. The MAX3079E has two pins that invert the phase of the driver and the receiver to correct this problem. F or normal operation, drive TXP and RXP low, connect them to ground, or leave them unconnect-ed (internal pulldown). To invert the driver phase, drive TXP high or connect it to V CC . To invert the receiver phase, drive RXP high or connect it to V CC . Note that the receiver threshold is positive when RXP is high.The MAX3079E can operate in full- or half-duplex mode. Drive the H/F pin low, leave it unconnected (internal pulldown), or connect it to GND for full-duplexoperation. Drive H/F high for half-duplex operation. In full-duplex mode, the pin configuration of the driver and receiver is the same as that of a MAX3070E. In half-duplex mode, the receiver inputs are switched to the driver outputs, connecting outputs Y and Z to inputs A and B, respectively. In half-duplex mode, the internal full-duplex receiver input resistors are still connected to pins 11 and 12.±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electro-static discharges encountered during handling and assembly. The driver outputs and receiver inputs of the MAX3070E family of devices have extra protection against static electricity. Maxim ’s engineers have devel-oped state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD struc-tures withstand high ESD in all states: normal operation,shutdown, and powered down. After an ESD event, the MAX3070E –MAX3079E keep working without latchup or damage.ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the MAX3070E –MAX3079E are characterized for protection to the following limits:•±15kV using the Human Body Model•±6kV using the Contact Discharge method specified in IEC 1000-4-2ESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test setup, test methodology, and test results.Human Body ModelFigure 10a shows the Human Body Model, and Figure 10b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest,which is then discharged into the test device through a 1.5k Ωresistor.IEC 1000-4-2The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The MAX3070E family of devices helps you design equip-ment to meet IEC 1000-4-2, without the need for addi-tional ESD-protection components.The major difference between tests done using the Human Body Model and IEC 1000-4-2 is higher peak+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceiverscurrent in IEC 1000-4-2, because series resistance is lower in the IEC 1000-4-2 model. Hence, the ESD with-stand voltage measured to IEC 1000-4-2 is generally lower than that measured using the Human Body Model.F igure 10c shows the IEC 1000-4-2 model, and F igure 10d shows the current waveform for IEC 1000-4-2 ESD Contact Discharge test.The air-gap test involves approaching the device with a charged probe. The contact-discharge method connects the probe to the device before the probe is energized.Machine Model The machine model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis-tance. The objective is to emulate the stress caused when I/O pins are contacted by handling equipment during test and assembly. Of course, all pins require this protection, not just RS-485 inputs and outputs.Applications Information256 Transceivers on the BusThe standard RS-485 receiver input impedance is 12kΩ(1-unit load), and the standard driver can drive up to 32-unit loads. The MAX3070E family of transceivers has a1/8-unit load receiver input impedance (96kΩ), allowingup to 256 transceivers to be connected in parallel on one communication line. Any combination of these devicesas well as other RS-485 transceivers with a total of 32-unit loads or fewer can be connected to the line.Reduced EMI and ReflectionsThe MAX3070E/MAX3071E/MAX3072E feature reducedslew-rate drivers that minimize EMI and reduce reflec-tions caused by improperly terminated cables, allowingerror-free data transmission up to 250kbps. TheMAX3073E/MAX3074E/MAX3075E offer higher driver output slew-rate limits, allowing transmit speeds up to500kbps. The MAX3079E with SRL = V CC or uncon-nected, are slew-rate limited. With SRL unconnected,the MAX3079E error-free data transmission is up to250kbps; with SRL connected to V CC the data transmit speeds up to 500kbps.MAX3070E–MAX3079E+3.3V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversM A X 3070E –M A X 3079ELow-Power Shutdown Mode (Except MAX3071E/MAX3074E/MAX3077E)Low-power shutdown mode is initiated by bringing both RE high and DE low. In shutdown, the devices typically draw only 50nA of supply current.RE and DE can be driven simultaneously; the parts are guaranteed not to enter shutdown if RE is high and DE is low for less than 50ns. If the inputs are in this state for at least 600ns, the parts are guaranteed to enter shutdown.Enable times t ZH and t ZL (see the Switching Characteristics section) assume the part was not in a low-power shutdown state. Enable times t ZH(SHDN)and t ZL(SHDN)assume the parts were shut down. It takes drivers and receivers longer to become enabled from low-power shutdown mode (t ZH(SHDN), t ZL(SHDN)) than from driver/receiver-disable mode (t ZH , t ZL ).Driver Output ProtectionTwo mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention.The first, a foldback current limit on the output stage,provides immediate protection against short circuits over the whole common-mode voltage range (see the Typical Operating Characteristics ). The second, a thermal-shut-down circuit, forces the driver outputs into a high-imped-ance state if the die temperature becomes excessive.Line LengthThe RS-485/RS-422 standard covers line lengths up to 4000ft. F or line lengths greater than 4000ft, use the repeater application shown in Figure 11.Typical ApplicationsThe MAX3072E/MAX3075E/MAX3078E/MAX3079E transceivers are designed for bidirectional data commu-nications on multipoint bus transmission lines. F igures 12 and 13 show typical network applications circuits. To minimize reflections, terminate the line at both ends in its characteristic impedance, and keep stub lengths off the main line as short as possible. The slew-rate-lim-ited MAX3072E/MAX3075E and the two modes of the MAX3079E are more tolerant of imperfect termination.Chip InformationTRANSISTOR COUNT: 1228PROCESS: BiCMOS+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversFigure 11. Line Repeater for MAX3070E/MAX3071E/MAX3073E/MAX3074E/MAX3076E/MAX3077E/MAX3079E in Full-Duplex Mode+3.3V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX3070E–MAX3079EM A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversPin Configurations and Typical Operating CircuitsMAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers______________________________________________________________________________________21Pin Configurations and Typical Operating Circuits (continued)M A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 22______________________________________________________________________________________Ordering Information (continued)MAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers______________________________________________________________________________________23Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)M A X 3070E –M A X 3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 24______________________________________________________________________________________Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)MAX3070E–MAX3079E+3.3V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. N o circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________25©2003 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MEMORY存储芯片MAX3490EESA+T中文规格书

Figure 1. MAX3483/MAX3485/MAX3486 Pin Configuration and Typical Operating Circuit Figure 2. MAX3488/MAX3490 Pin Configuration and Typical Operating Circuit Figure 3. MAX3491 Pin Configuration and Typical Operating CircuitMAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX34913.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 TransceiversDriver Output ProtectionExcessive output current and power dissipation caused by faults or by bus contention are prevented by two mechanisms. A foldback current limit on the output stage provides immediate protection against short circuits over the whole common-mode voltage range (see Typical Operating Characteristics ). In addition, a thermal shut-down circuit forces the driver outputs into a high-impedance state if the die temperature rises excessively.Propagation Delay Figures 15–18 show the typical propagation delays. Skew time is simply the difference between the low-to-high and high-to-low propagation delay. Small driver/receiver skew times help maintain a symmetrical mark-space ratio (50% duty cycle).The receiver skew time, |t PRLH - t PRHL |, is under 10ns (20ns for the MAX3483/MAX3488). The driver skew times are 8ns for the MAX3485/MAX3490/MAX3491, 11ns for the MAX3486, and typically under 100ns for the MAX3483/MAX3488.Line Length vs. Data Rate The RS-485/RS-422 standard covers line lengths up to 4000 feet. For line lengths greater than 4000 feet, see Figure 23.Figures 19 and 20 show the system differential voltage for parts driving 4000 feet of 26AWG twisted-pair wire at 125kHz into 120Ω loads.Typical ApplicationsThe MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 transceivers are designed for bidirectional data communications on multipoint bus transmission lines. Figures 21 and 22 show typical net-work applications circuits. These parts can also be used as line repeaters, with cable lengths longer than 4000 feet, as shown in Figure 23.To minimize reflections, the line should be terminated at both ends in its characteristic impedance, and stub lengths off the main line should be kept as short as pos-sible. The slew-rate-limited MAX3483/MAX3488 and the partially slew-rate-limited MAX3486 are more tolerant of imperfect termination.Figure 21. MAX3483/MAX3485/MAX3486 Typical RS-485 NetworkMAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX34913.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers。

MAX3032EEUE+中文资料

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
MAX3030E/ MAX3031E
16 VCC 15 DI4 14 DO4+ 13 DO412 EN 11 DO310 DO3+ 9 DI3
TSSOP/SO
DI1 1 DO1+ 2 DO1- 3 EN1&2 4 DO2- 5 DO2+ 6
DI2 7 GND 8
MAX3032E/ MAX3033E
16 VCC 15 DI4 14 DO4+ 13 DO412 EN3&4 11 DO310 DO3+ 9 DI3
Ordering Information
ቤተ መጻሕፍቲ ባይዱ
TEMP RANGE 0°C to +70°C 0°C to +70°C
-40°C to +85°C -40°C to +85°C

MAX4513CSE+T中文资料

General DescriptionThe MAX4511/MAX4512/MAX4513 are quad, single-pole/single-throw (SPST), fault-protected analog switch-es. They are pin-compatible with the industry-standard nonprotected DG201/DG202/DG213. These new switch-es feature fault-protected inputs and Rail-to-Rail ®signal handling capability. The normally open (NO_) and normally closed (NC_) terminals are protected from overvoltage faults up to 36V during power-up or power-down. During a fault condition, the NO_ or NC_terminal becomes an open circuit and only nanoamperes of leakage current flow from the source, but the switch output (COM_) furnishes up to 10mA of the appropriate polarity supply voltage to the load. This ensures unam-biguous rail-to-rail outputs when a fault begins and ends.On-resistance is 175Ωmax and is matched between switches to 10Ωmax. The off-leakage current is only 0.5nA at +25°C and 10nA at +85°C.The MAX4511 has four normally closed switches. The MAX4512 has four normally open switches. The MAX4513 has two normally closed and two normally open switches.These CMOS switches can operate with dual power supplies ranging from ±4.5V to ±18V or a single supply between +9V and +36V.All digital inputs have +0.8V and +2.4V logic thresh-olds, ensuring both TTL- and CMOS-logic compatibility when using ±15V or a single +12V supply.ApplicationsFeatureso ±40V Fault Protection with Power Off±36V Fault Protection with ±15V Supplies o All Switches Off with Power Off o Rail-to-Rail Signal Handlingo Output Clamped to Appropriate Supply Voltage During Fault Condition; No Transition Glitch o 175Ωmax Signal Paths with ±15V Supplies o No Power-Supply Sequencing Required o ±4.5V to ±18V Dual Supplies +9V to +36V Single Supply o Low Power Consumption, <2mWo Four Separately Controlled SPST Switches o Pin-Compatible with Industry-StandardDG411/DG412/DG413, DG201/DG202/DG213o TTL- and CMOS-Compatible Logic Inputs with Single +9V to +15V or ±15V SuppliesFor free samples & the latest literature: , or phone 1-800-998-8800.For small orders, phone 408-737-7600 ext. 3468.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches________________________________________________________________Maxim Integrated Products119-4760; Rev 1; 8/02Ordering Information continued at end of data sheet.*Contact factory for dice specifications.Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.Ordering InformationPin Configurations/Functional Diagrams/Truth TablesATE Equipment Data Acquisition Industrial and Process-Control SystemsAvionicsRedundant/Backup SystemsM A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +15V, V- = -15V, GND = 0V, T A =T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Note 1:COM_ and IN_ pins are not fault protected. Signals on COM_ or IN_ exceeding V+ or V- are clamped by internal diodes.Limit forward diode current to maximum current rating.Note 2:NC_ and NO_ pins are fault protected. Signals on NC_ or NO_ exceeding -36V to +36V may damage the device. Theselimits apply with power applied to V+ or V-, or ±40V with V+ = V- = 0.(Voltages Referenced to GND)V+........................................................................-0.3V to +44.0V V-.........................................................................-44.0V to +0.3V V+ to V-................................................................-0.3V to +44.0V COM_, IN_ (Note 1)..............................(V- - 0.3V) to (V+ + 0.3V)NC_, NO_ (Note 2)..................................(V+ - 36V) to (V- + 36V)NC_, NO_ to COM_.................................................-36V to +36V Continuous Current into Any Terminal..............................±30mA Peak Current into Any Terminal(pulsed at 1ms, 10% duty cycle)...................................±50mAContinuous Power Dissipation (T A = +70°C) (Note 2)Plastic DIP (derate 10.53mW/°C above +70°C)...........842mW Narrow SO (derate 8.70mW/°C above +70°C).............696mW TSSOP (derate 9.4mW/°C above +70°C)..................754.7mW CERDIP (derate 10.00mW/°C above +70°C)................800mW Operating Temperature RangesMAX451_C_ E......................................................0°C to +70°C MAX451_E_ E...................................................-40°C to +85°C MAX451_MJE .................................................-55°C to +125°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)(V+ = +15V, V- = -15V, GND = 0V, T A =T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)(V+ = +15V, V- = -15V, GND = 0V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________5ELECTRICAL CHARACTERISTICS—Single +12V Supply(V+ = +10.8V to +13.2V, V- = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 6_______________________________________________________________________________________Note 1:COM_ and IN_ pins are not fault protected. Signals on COM_ or IN_ exceeding V+ or V- are clamped by internal diodes.Limit forward diode current to maximum current rating.Note 2:NC_ and NO_ pins are fault protected. Signals on NC_ or NO_ exceeding -36V to +36V may damage the device. These limits apply with power applied to V+ or V-, or ±40V with V+ = V- = 0.Note 3:The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.Note 4:∆R ON = ∆R ON(MAX)- ∆R ON(MIN).Note 5:Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at T A = +25°C.Note 6:Guaranteed by design.Note 7:Off isolation = 20 log10 [ V COM_/ (V NC_or V NO_) ], V COM_= output, V NC_or V NO_= input to off switch.Note 8:Between any two switches.Note 9:Leakage testing for single-supply operation is guaranteed by testing with dual supplies.ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued)(V+ = +10.8V to +13.2V, V- = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________7__________________________________________Typical Operating Characteristics(T A = +25°C, unless otherwise noted.)010050250200150300350-20-50-15-105101520SWITCH ON-RESISTANCE vs. V COM (DUAL SUPPLIES)V COM (V)S W I T C H O N -R E S I S T A N C E (Ω)80602040160140100120180200-15-50-1051015SWITCH ON-RESISTANCE vs. V COM AND TEMPERATURE (DUAL SUPPLIES)V COM (V)S W I T C H O N -R E S I S T A N C E (Ω)100010051015202530SWITCH ON-RESISTANCE vs. V COM (SINGLE SUPPLY)V COM (V)S W I T C H O N -R E S I S I T A N C E (Ω)050200150100300350250400046281012SWITCH ON-RESISTANCE vs. V COM AND TEMPERATURE (SINGLE SUPPLY)V COM (V)S W I T C H O N -R E S I S T A N C E (Ω)0300200100700800600500400900100005101520ON AND OFF TIMES vs. SUPPLY VOLTAGESUPPLY VOLTAGE (±V)t O N , t O F F (n s )1p10p100p1n10n 100n-50-25255075100125150I D(ON), I S(OFF), AND I D(OFF) LEAKAGES vs. TEMPERATURETEMPERATURE (°C)L E A K A G E (A )02810641214-15-10-5051015CHARGE INJECTION vs. V COM (DUAL SUPPLIES)V COM (V)Q (p C )010*******500400600-5025-255075100125ON AND OFF TIMES vs. TEMPERATURETEMPERATURE (°C)t O N , t O F F (n s )100300200500400600-50025-255075100125POWER-SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (µA )M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 8_______________________________________________________________________________________00.51.51.02.52.03.001015520253035LOGIC-LEVEL THRESHOLD vs. V+M A X 4511-10V+ (V)L O G I C -L E V E L T H R E S H O L D (V )Typical Operating Characteristics (continued)(T A = +25°C, unless otherwise noted.)0-10-20-1200.010.11101001000FREQUENCY RESPONSE-90-100-110FREQUENCY (MHz)L O S S (d B )P H A S E (D E G R E E S )-70-80-50-60-30-4012010080-120-60-80-100-20-402006040Pin Description*As long as the voltage on NO_ or NC_ does not exceed V+ or V-, NO_ (or NC_) and COM_ pins are identical and interchange-able. Either may be considered as an input or output; signals pass equally well in either direction.Detailed DescriptionOverview of Traditional Fault-Protected SwitchesThe MAX4511/MAX4512/MAX4513 are fault-protected CMOS analog switches with unusual operation and construction. Traditional fault-protected switches are constructed by three series FETs. This produces good off characteristics, but fairly high on-resistance when the signals are within about 3V of each supply rail. As the voltage on one side of the switch approaches with-in about 3V of either supply rail (a fault condition), the switch impedance becomes higher, limiting the output signal range (on the protected side of the switch) to approximately 3V less than the appropriate polarity supply voltage.During a fault condition, the output current that flows from the protected side of the switch into its load comes from the fault source on the other side of the switch. I f the switch is open or the load is extremely high impedance, the input current will be very low. I f the switch is on and the load is low impedance,enough current will flow from the source to maintain the load voltage at 3V less than the supply.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________9Overview of MAX4511/MAX4512/MAX4513The MAX4511/MAX4512/MAX4513 differ considerably from traditional fault-protection switches, with several advantages. First, they are constructed with two paral-lel FETs, allowing very low on-resistance when the switch is on. Second, they allow signals on the NC_ or NO_ pins that are within or slightly beyond the supply rails to be passed through the switch to the COM termi-nal, allowing rail-to-rail signal operation. Third, when a signal on NC_ or NO_ exceeds the supply rails by about 50mV (a fault condition), the voltage on COM_ is limited to the appropriate polarity supply voltage.Operation is identical for both fault polarities. The fault-protection extends to ±36V from GND.During a fault condition, the NO_ or NC_ input pin becomes high impedance regardless of the switch state or load resistance. If the switch is on, the COM_output current is furnished from the V+ or V- pin by “booster” FETs connected to each supply pin. These FETs can typically source or sink up to 10mA.When power is removed, the fault protection is still in effect. In this case, the NO_ or NC_ terminals are a vir-tual open circuit. The fault can be up to ±40V.The COM_ pins are not fault protected; they act as nor-mal CMOS switch pins. If a voltage source is connect-ed to any COM_ pin, it should be limited to the supply voltages. Exceeding the supply voltage will cause high currents to flow through the ESD protection diodes,possibly damaging the device (see Absolute Maximum Ratings ).Pin CompatibilityThese switches have identical pinouts to common non-fault-protected CMOS switches. Care should be exer-cised in considering them for direct replacements in existing printed circuit boards, however, since only the NO_ and NC_ pins of each switch are fault protected.Internal ConstructionInternal construction is shown in Figure 1, with the ana-log signal paths shown in bold. A single normally openFigure 1. Block DiagramM A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 10______________________________________________________________________________________(NO) switch is shown; the normally closed (NC) config-uration is identical except the logic-level translator becomes an inverter. The analog switch is formed by the parallel combination of N-channel FET N1 and P-channel FET P1, which are driven on and off simultane-ously according to the input fault condition and the logic-level state.Normal OperationTwo comparators continuously compare the voltage on the NO_ (or NC_) pin with V+ and V-. When the signal on NO_ or NC_ is between V+ and V- the switch acts normally, with FETs N1 and P1 turning on and off in response to I N_ signals. The parallel combination of N1 and P1 forms a low-value resistor between NO_ (or NC_) and COM_ so that signals pass equally well in either direction.Positive Fault ConditionWhen the signal on NO_ (or NC_) exceeds V+ by about 50mV, the high-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) pin high impedance regardless of the switch state. I f the switch state is “off”, all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. I f the switch state is “on”, FET P2 is turned on, sourcing cur-rent from V+ to COM_.Negative Fault ConditionWhen the signal on NO_ (or NC_) exceeds V- by about 50mV, the low-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) pin high impedance regardless of the switch state. I f the switch state is “off,” all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. I f the switch state is “on,” FET N2 is turned on, sinking cur-rent from COM_ to V-.Transient Fault Response and RecoveryWhen a fast rise-time and fall-time transient on I N_exceeds V+ or V-, the output (COM_) follows the input (I N_) to the supply rail with only a few nanoseconds delay. This delay is due to the switch on-resistance and circuit capacitance to ground. When the input transient returns to within the supply rails, however, there is a longer output recovery time delay. For positive faults, the recovery time is typically 3.5µs. For negative faults, the recovery time is typically 1.3µs. These values depend on the COM_ output resistance and capacitance, and are not production tested or guaranteed. The delays are not dependent on the fault amplitude. Higher COM_ output resistance and capacitance increase recovery times.COM_ and IN_ PinsFETs N2 and P2 can source about ±10mA from V+ or V-to the COM_ pin in the fault condition. Ensure that if the COM_ pin is connected to a low-resistance load, the absolute maximum current rating of 30mA is never exceeded, both in normal and fault conditions.The GND, COM_, and IN_ pins do not have fault protec-tion. Reverse ESD-protection diodes are internally con-nected between GND, COM_, IN_ and both V+ and V-. If a signal on GND, COM_, or I N_ exceeds V+ or V- by more than 300mV, one of these diodes will conduct heavily. During normal operation these reverse-biased ESD diodes leak a few nanoamps of current to V+ and V-.Fault-Protection Voltage and Power OffThe maximum fault voltage on the NC_ or NO_ pins is ±36V with power applied and ±40V with power off.Failure ModesThe MAX4511/MAX4512/MAX4513 are not lightning arrestors or surge protectors.Exceeding the fault-protection voltage limits on NO_ or NC_, even for very short periods, can cause the device to fail. The failure modes may not be obvious, and fail-ure in one switch may or may not affect other switches in the same package.GroundThere is no connection between the analog signal paths and GND. The analog signal paths consist of an N-channel and P-channel MOSFET with their sources and drains paralleled and their gates driven out of phase to V+ and V- by the logic-level translators.V+ and GND power the internal logic and logic-level translators and set the input logic thresholds. The logic-level translators convert the logic levels to switched V+and V- signals to drive the gates of the analog switch-es. This drive signal is the only connection between the power supplies and the analog signals. GND, IN_, and COM_ have ESD-protection diodes to V+ and V-.IN_ Logic-Level ThresholdsThe logic-level thresholds are CMOS and TTL compati-ble when V+ is +15V. As V+ is raised the threshold increases slightly, and when V+ reaches 25V the level threshold is about 2.8V—above the TTL output high level minimum of 2.4V, but still compatible with CMOS outputs (see Typical Operating Characteristics ).Increasing V- has no effect on the logic-level thresholds,but it does increase the gate-drive voltage to the signal FETs, reducing their on-resistance.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches______________________________________________________________________________________11Bipolar SuppliesThe MAX4511/MAX4512/MAX4513 operate with bipolar supplies between ±4.5V and ±18V. The V+ and V- sup-plies need not be symmetrical, but their difference can not exceed the absolute maximum rating of 44V.Single SupplyThe MAX4511/MAX4512/MAX4513 operate from a sin-gle supply between +9V and +36V when V- is connect-ed to GND.High-Frequency PerformanceIn 50Ωsystems, signal response is reasonably flat up to 50MHz (see Typical Operating Characteristics ). Above20MHz, the on-response has several minor peaks that are highly layout dependent. The problem with high-fre-quency operation is not turning the switch on, but turn-ing it off. The off-state switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off isolation is about -42dB in 50Ωsystems,becoming worse (approximately 20dB per decade) as frequency increases. Higher circuit impedances also make off isolation worse. Adjacent channel attenuation is about 3dB above that of a bare IC socket and is due entirely to capacitive coupling.Figure 2. Switch Turn-On/Turn-Off TimesTest Circuits/Timing DiagramsFigure 3. MAX4513 Break-Before-Make IntervalM A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 12______________________________________________________________________________________Figure 4. Charge InjectionFigure 5. COM_, NO_, NC_ CapacitanceTest Circuits/Timing Diagrams (continued)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches______________________________________________________________________________________13Figure 6. Frequency Response, Off Isolation, and CrosstalkTest Circuits/Timing Diagrams (continued)Pin Configurations/Functional Diagrams/Truth Tables (continued)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 14______________________________________________________________________________________V-GNDNC4COM4IN4IN3COM30.086"(2.261mm)MAX4511NO1NO2COM1IN1IN2COM2COM4NO4IN4IN3NO3COM30.086"(2.261mm)MAX4512Ordering Information (continued)Chip TopographiesV-GNDCOM4NO4IN4IN3NC3COM3MAX45130.086"(2.261mm)TRANSISTOR COUNT: 139SUBSTRATE CONNECTED TO:V+*Contact factory for dice specifications.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches______________________________________________________________________________________15Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 16______________________________________________________________________________________Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages.)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog SwitchesMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600______________________17©2002 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MAX4331ESA+T中文资料

General DescriptionThe MAX4330–MAX4334 single/dual/quad op amps combine a wide 3MHz bandwidth, low-power operation,and excellent DC accuracy with Rail-to-Rail ®inputs and outputs. These devices require only 245µA per amplifier,and operate from either a single +2.3V to +6.5V supply or dual ±1.15V to ±3.25V supplies. The input common-mode voltage range extends 250mV beyond V EE and V CC , and the outputs swing rail-to-rail. The MAX4331/MAX4333 feature a shutdown mode in which the output goes high impedance and the supply current decreases to 9µA per amplifier.Low-power operation combined with rail-to-rail input common-mode range and output swing makes these amplifiers ideal for portable/battery-powered equipment and other low-voltage, single-supply applications.Although the minimum operating voltage is specified at 2.3V, these devices typically operate down to 2.0V. Low offset voltage and high speed make these amplifiers excellent choices for signal-conditioning stages in pre-cision, low-voltage data-acquisition systems. The MAX4330 is available in the space-saving 5-pin SOT23package, and the MAX4331/MAX4333 are offered in a µMAX package.ApplicationsPortable/Battery-Powered Equipment Data-Acquisition Systems Signal ConditioningLow-Power, Low-Voltage Applications____________________________Featureso 3MHz Gain-Bandwidth Product o 245µA Quiescent Current per Amplifier o Available in Space-Saving SOT23-5 Package (MAX4330)o +2.3V to +6.5V Single-Supply Operationo Rail-to-Rail Input Common-Mode Voltage Range o Rail-to-Rail Output Voltage Swing o 250µV Offset Voltageo Low-Power, 9µA (per amp) Shutdown Mode (MAX4331/MAX4333)o No Phase Reversal for Overdriven Inputs o Capable of Driving 2k ΩLoads o Unity-Gain StableMAX4330–MAX4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown________________________________________________________________Maxim Integrated Products1Pin Configurations19-1192; Rev 3; 2/98Selector GuideRail-to-Rail is a registered trademark of Nippon Motorola Ltd.For free samples & the latest literature: , or phone 1-800-998-8800.For small orders, phone 408-737-7600 ext. 3468.M A X 4330–M A X 4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with ShutdownABSOLUTE MAXIMUM RATINGSDC ELECTRICAL CHARACTERISTICS(V = +2.3V to +6.5V, V = 0V, V = 0V, V = (V / 2), R tied to (V / 2), V SHDN = +25°C, unless otherwise noted.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Supply Voltage, V CC to V EE .....................................................7V IN_+, IN_-, SHDN Voltage................(V EE - 0.3V) to (V CC + 0.3V)Output Short-Circuit Duration....................................Continuous(short to either supply)Continuous Power Dissipation (T A = +70°C)5-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW 8-Pin SO (derate 5.88mW/°C above +70°C).................471mW 8-Pin µMAX (derate 4.10mW/°C above +70°C)............330mW10-Pin µMAX (derate 5.60mW/°C above +70°C)..........444mW 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW Operating Temperature RangesMAX433_C/D .......................................................0°C to +70°C MAX433_E_ _....................................................-40°C to +85°C Maximum Junction Temperature.....................................+150°C Storage Temperature Range.............................-65°C to +160°C Lead Temperature (soldering, 10sec).............................+300°CMAX4330–MAX4334 Single/Dual/Quad, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps with Shutdown_______________________________________________________________________________________3DC ELECTRICAL CHARACTERISTICS (continued)(V CC= +2.3V to +6.5V, V EE= 0V, V CM= 0V, V OUT= (V CC/ 2), R L tied to (V CC/ 2), V SHDN≥2V, T A= +25°C, unless otherwise noted.)DC ELECTRICAL CHARACTERISTICS(V CC= +2.3V to +6.5V, V EE= 0V, V CM= 0V, V OUT= (V CC/ 2), R L tied to (V CC/ 2), V SHDN≥2V, T A= -40°C to +85°C,unlessotherwise noted.)M A X 4330–M A X 4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown 4_______________________________________________________________________________________DC ELECTRICAL CHARACTERISTICS (continued)(V CC = +2.3V to +6.5V, V EE = 0V, V CM = 0V, V OUT = (V CC / 2), R L tied to (V CC / 2), V SHDN ≥2V, T A = -40°C to +85°C,unless otherwise noted.)Note 1:SHDN logic thresholds are referenced to V EE .Note 2:The MAX4330EUK is 100% tested at T A = +25°C. All temperature limits are guaranteed by design.MAX4330–MAX4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown_______________________________________________________________________________________5AC ELECTRICAL CHARACTERISTICS(V CC = +5V, V EE = 0V, V CM = 0V, V OUT = (V CC / 2), R L = 10k Ωto (V CC / 2), V SHDN ≥2V, C L = 15pF, T A = +25°C,unless otherwise noted.)60-201001k100k10MGAIN AND PHASE vs. FREQUENCY (NO LOAD)FREQUENCY (Hz)G A I N (d B )P H A S E (D E G R E E S )10k1M100M 50403020100-10180-180********-45-90-13560-401001k 100k 10MGAIN AND PHASEFREQUENCY (Hz)G A I N (d B )P H A S E (D E G R E E S )10k 1M 100M 4020-20180-18010836-36-108144720-72-144-1001010010k 1M 10M POWER-SUPPLY REJECTION RATIOFREQUENCY (Hz)P S R R (d B )1k 100k 100M-20-40-60-80__________________________________________Typical Operating Characteristics(V CC = +5V, V EE = 0V, V CM = V CC / 2, V SHDN > 2V, T A = +25°C, unless otherwise noted.)M A X 4330–M A X 4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown 6_______________________________________________________________________________________-40-20-30100-1040302050-4020-20406080100INPUT BIAS CURRENT vs. TEMPERATURETEMPERATURE (°C)I N P U T B I A S C U R R E N T (n A )25020015010050TEMPERATURE (°C)-20-40-60200608040100OUTPUT SWING HIGH V C C - V O U T (m V )120100804020600TEMPERATURE (°C)-200-60-4020406080100OUTPUT SWING LOW vs. TEMPERATUREV O U T - V E E (m V )1k0.011001k100k 10MOUTPUT IMPEDANCE vs. FREQUENCYFREQUENCY (Hz)O U T P U T I M P E D A N C E (Ω)10k 1M 100M1001010.1120010008004000200600-200TEMPERATURE (°C)-40-200-6020406080100OUTPUT LEAKAGE CURRENTO U T P U T L E A K A G E C U R R E N T (p A)350310330250270290210190170230150TEMPERATURE (°C)-20-602060100-404080SUPPLY CURRENT vs. TEMPERATUREI C C (µA )252015105TEMPERATURE (°C)-40-60-2040608020100SHUTDOWN SUPPLY CURRENTvs. TEMPERATUREI C C (µA)150050001000-500-1000-1500TEMPERATURE (°C)-40-200-6020406080100INPUT OFFSET VOLTAGE vs. TEMPERATUREI N P U T O F F S E T VO L T A G E (µV )-30-10-2010030204002314567INPUT BIAS CURRENT vs. COMMON-MODE VOLTAGECOMMON-MODE VOLTAGE (V)I N P U T B I A S C U R R E N T (n A )____________________________Typical Operating Characteristics (continued)(V CC = +5V, V EE = 0V, V CM = V CC / 2, V SHDN > 2V, T A = +25°C, unless otherwise noted.)MAX4330–MAX4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown_______________________________________________________________________________________7____________________________Typical Operating Characteristics (continued)(V CC = +5V, V EE = 0V, V CM = V CC / 2, V SHDN > 2V, T A = +25°C, unless otherwise noted.)1181081131039383889878OUTPUT VOLTAGE: EITHER SUPPLY (V)0.100.20.30.50.40.6LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE (V = 2.3V, R TO V )G A I N (d B )-60-70-80-90-110-130-120-100-140TEMPERATURE (°C)-20-40-60020806040100COMMON-MODE REJECTIONC O M M O N -M ODE R E J E C T I O N (d B )115105110100959085TEMPERATURE (°C)-40-60-20060804020100LARGE-SIGNAL GAINvs. TEMPERATURE (R = 2k Ω)G A I N (d B )11811411010698909410286OUTPUT VOLTAGE: EITHER SUPPLY (V)0.100.20.50.40.30.6LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE (V CC = 2.3V, R L TO V EE )G A I N (d B)1301201251151059510011090OUTPUT VOLTAGE: EITHER SUPPLY (V)0.100.20.30.50.40.6LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE (V CC = 6.5V, R L TO V EE )G A I N (d B)1401301201009011080OUTPUT VOLTAGE: EITHER SUPPLY (V)00.10.20.30.40.50.6LARGE-SIGNAL GAIN vs. OUTPUT VOLTAGE (V CC = 6.5V, R L TO V CC )G A I N (d B )130125120115110TEMPERATURE (°C)-40-60-2060804020100LARGE-SIGNAL GAINvs. TEMPERATURE (R = 100k Ω)G A I N (d B )2.001.951.901.851.801.751.701.651.60M A X 4330/34-T O C 18TEMPERATURE (°C)-40-60-2060804020100MINIMUM OPERATING VOLTAGEvs. TEMPERATUREV C C (V )10.00111k10k100kTOTAL HARMONIC DISTORTION AND NOISE vs. FREQUENCY0.010.1FREQUENCY (Hz)T H D + N O I S E (%)10010M A X 4330–M A X 4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown 8_______________________________________________________________________________________10.0014.05.0TOTAL HARMONIC DISTORTION AND NOISE vs. PEAK-TO-PEAKSIGNAL AMPLITUDE0.010.1PEAK-TO-PEAK SIGNAL AMPLITUDE (V)T H D + N O I S E (%)4.64.84.24.48010090120110130140110100100010000CROSSTALK vs. FREQUENCYM A X 4330/34-T O C 22FREQUENCY (kHz)C R O S S T A L K (d B )102006001000CAPACITIVE LOAD STABILITY8LOAD CAPACITANCE (pF)L O A D R E S I S T A N C E (k Ω)400800642LARGE-SIGNAL TRANSIENT RESPONSE(NONINVERTING)MAX4330/34-TOC24TIME (5µs/div)INOUTV O L T A G E (2V /d i v )A V = -1INOUTSMALL-SIGNAL TRANSIENT RESPONSE(INVERTING)MAX4330/34-TOC23TIME (200ns/div)V O L T A G E (50m V /d i v )LARGE-SIGNAL TRANSIENT RESPONSE(INVERTING)MAX4330/34-TOC25TIME (5µs/div)INOUTV O L T A G E (2V /d i v )A V = +1INOUT SMALL-SIGNAL TRANSIENT RESPONSE(NONINVERTING)MAX4330/34-TOC22TIME (200ns/div)V O L T A G E (50m V /d i v )____________________________Typical Operating Characteristics (continued)(V CC = +5V, V EE = 0V, V CM = V CC / 2, V SHDN > 2V, T A = +25°C, unless otherwise noted.)MAX4330–MAX4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown_______________________________________________________________________________________9Pin DescriptionM A X 4330–M A X 4334Single/Dual/Quad, Low-Power, Single-Supply,Rail-to-Rail I/O Op Amps with Shutdown 10_____________________________________________________________________________________________________Detailed DescriptionRail-to-Rail Input StageThe MAX4330–MAX4334 have rail-to-rail input and out-put stages that are specifically designed for low-voltage, single-supply operation. The input stage con-sists of separate NPN and PNP differential stages,which operate together to provide a common-mode range extending to 0.25V beyond both supply rails. The crossover region, which occurs halfway between V CC and V EE , is extended to minimize degradation in CMRR caused by mismatched input pairs. The input offset volt-age is typically 250µV. Low offset voltage, high band-width, rail-to-rail common-mode input range, and rail-to-rail outputs make this family of op amps an excel-lent choice for precision, low-voltage data-acquisition systems.Since the input stage consists of NPN and PNP pairs,the input bias current changes polarity as the input volt-age passes through the crossover region. Match the effective impedance seen by each input to reduce the offset error due to input bias currents flowing through external source impedances (Figures 1a and 1b). The combination of high source impedance with input capacitance (amplifier input capacitance plus stray capacitance) creates a parasitic pole that produces an underdamped signal response. Reducing input capaci-tance or placing a small capacitor across the feedback resistor improves response.The MAX4330–MAX4334’s inputs are protected from large differential input voltages by internal 1k Ωseries resistors and back-to-back triple diode stacks across the inputs (Figure 2). For differential input voltages (much less than 1.8V), input resistance is typically 2.3M Ω. For differential input voltages greater than 1.8V,input resistance is around 2k Ω, and the input bias cur-rent can be approximated by the following equation:I BIAS = (V DIFF - 1.8V) / 2k ΩIn the region where the differential input voltage approaches 1.8V, input resistance decreases exponen-tially from 2.3M Ωto 2k Ωas the diode block begins con-ducting. Inversely, the bias current increases with the same curve.Figure 1a. Reducing Offset Error Due to Bias Current (Noninverting)Figure 1b. Reducing Offset Error Due to Bias Current (Inverting)MAX4330–MAX4334Rail-to-Rail I/O Op Amps with Shutdown______________________________________________________________________________________11Rail-to-Rail Output StageThe MAX4330–MAX4334 output stage can drive up to a 2k Ωload and still typically swing within 125mV of the rails. Figure 3 shows the output voltage swing of a MAX4331 configured as a unity-gain buffer. The operat-ing voltage is a single +3V supply, and the input volt-age is 3Vp-p. The output swings to within 70mV of V EE and 100mV of V CC , even with the maximum load applied (2k Ωto mid-supply).Driving a capacitive load can cause instability in many op amps, especially those with low quiescent current.The MAX4330–MAX4334 are stable for capacitive loads up to 150pF. The Capacitive Load Stability graph in the Typical Operating Characteristics gives the stable operating region for capacitive vs. resistive loads.Figures 4 and 5 show the response of the MAX4331with an excessive capacitive load, compared with the response when a series resistor is added between the output and the capacitive load. The resistor improves the circuit’s response by isolating the load capacitance from the op amp’s output (Figure 6).Figure 2. Input Protection CircuitFigure 3. Rail-to-Rail Input/Output Voltage RangeIN1V/div1V/divOUT20µs/divV CC = 3V, R L = 2k Ω TO V CC / 2Figure 4. Small-Signal Transient Response with Excessive Capacitive LoadIN50mV/div50mV/divOUT2µs/divR ISO = 0Ω, A V = +1 C L = 510pF V CC = 3V, R L = 100k ΩM A X 4330–M A X 4334Rail-to-Rail I/O Op Amps with Shutdown 12________________________________________________________________________________________________Applications InformationPower-UpThe MAX4330–MAX4334 outputs typically settle within 5µs after power-up. Using the test circuit of Figure 7,Figures 8 and 9 show the output voltage and supply current on power-up and power-down.Shutdown ModeThe MAX4331/MAX4333 feature a low-power shutdown mode. When the shutdown pin (SHDN ) is pulled low, the supply current drops to 9µA per amplifier (typical), the amplifier is disabled, and the outputs enter a high-impedance state. Pulling SHDN high or leaving it float-ing enables the amplifier. Figures 10 and 11 show the MAX4331/MAX4333’s output voltage and supply-current responses to a shutdown pulse.Figure 5. Small-Signal Transient Response with Excessive Load and Isolation ResistorIN50mV/div50mV/divOUT 2µs/divA V = +1, C L = 510pF R ISO = 39ΩFigure 7. Power-Up/Shutdown Test Circuit SHDN0V TO +2.7V STEP FOR SHUTDOWN TEST0V TO +2.7V STEP FOR POWER-UP TEST, +2.7V STEP FOR SHUTDOWN-ENABLE TESTSUPPLY-CURRENT V CC100Ω2k 2kFigure 8. Power-Up/Down Output Voltage1V/div500mV/div5µs/divMAX4330–MAX4334Rail-to-Rail I/O Op Amps with Shutdown______________________________________________________________________________________13Do not three-state SHDN . Due to the output leakage currents of three-state devices and the small internal pull-up current for SHDN , three-stating this pin could result in indeterminate logic levels, and could adversely affect op-amp operation.The logic threshold for SHDN is always referred to V EE ,not GND. When using dual supplies, pull SHDN to V EE to place the op amp in shutdown mode.Power Supplies and LayoutThe MAX4330–MAX4334 operate from a single +2.3V to +6.5V power supply, or from dual ±1.15V to ±3.25V supplies. For single-supply operation, bypass the power supply with a 0.1µF capacitor to ground (V EE ).For dual supplies, bypass both V CC and V EE with their own set of capacitors to ground.Good layout technique helps optimize performance by decreasing the amount of stray capacitance at the op amp’s inputs and outputs. To decrease stray capaci-tance, minimize trace lengths by placing external com-ponents close to the op amp’s pins.Figure 9. Power-Up/Down Supply Current CC1V/div100CC5µs/divFigure 11. Shutdown Enable/Disable Supply CurrentSHDN 1V/div100CC5µs/divFigure 10. Shutdown Output Voltage Enable/DisableSHDN 1V/div500mV/div5µs/divM A X 4330–M A X 4334Rail-to-Rail I/O Op Amps with Shutdown 14______________________________________________________________________________________Pin Configurations (continued)MAX4330–MAX4334Rail-to-Rail I/O Op Amps with Shutdown______________________________________________________________________________________15Tape-and-Reel InformationChip InformationMAX4330/MAX4331TRANSISTOR COUNT: 199SUBSTRATE CONNECTED TO V EE MAX4332/MAX4333TRANSISTOR COUNT: 398SUBSTRATE CONNECTED TO V EE MAX4334TRANSISTOR COUNT: 796SUBSTRATE CONNECTED TO V EEM A X 4330–M A X 4334Rail-to-Rail I/O Op Amps with Shutdown________________________________________________________Package InformationMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.16____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©1998 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.。

MAX3483EESA-T中文资料

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
元器件交易网
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
Ordering Information
PART TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 SO 8 Plastic DIP 8 SO 8 Plastic DIP 8 SO 8 Plastic DIP 8 SO 8 Plastic DIP MAX3483ECSA MAX3483ECPA MAX3483EESA MAX3483EEPA MAX3485ECSA MAX3485ECPA MAX3485EESA MAX3485EEPA

MAX3313EEUB-T中文资料

General DescriptionThe MAX3311E/MAX3313E are low-power, 5V EIA/TIA-232-compatible transceivers. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model, making these devices ideal for applications where more robust transceivers are required.Both devices have one transmitter and one receiver.The transmitters have a proprietary low-dropout trans-mitter output stage enabling RS-232-compatible opera-tion from a +5V supply with a single inverting charge pump. These transceivers require only three 0.1µF capacitors and will run at data rates up to 460kbps while maintaining RS-232-compatible output levels.The MAX3311E features a 1µA shutdown mode. In shutdown the device turns off the charge pump, pulls V- to ground, and the transmitter output is disabled.The MAX3313E features an INVALID output that asserts high when an active RS-232 cable signal is connected,signaling to the host that a peripheral is connected to the communication port.________________________ApplicationsDigital Cameras PDAs GPS POSTelecommunications Handy Terminals Set-Top BoxesFeatureso ESD Protection for RS-232-Compatible I/O Pins±15kV—Human Body Modelo 1µA Low-Power Shutdown (MAX3311E)o INVALID Output (MAX3313E)o Receiver Active in Shutdown (MAX3311E)o Single Transceiver (1Tx/1Rx) in 10-Pin µMAX PackageMAX3311E/MAX3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX________________________________________________________________Maxim Integrated Products1Pin Configurations19-1910; Rev 0; 1/01Ordering InformationFor price, delivery, and to place orders,please contact Maxim Distribution at 1-888-629-4642,or visit Maxim’s website at .Typical Operating CircuitM A X 3311E /M A X 3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.V CC to GND.............................................................-0.3V to +6V V- to GND................................................................+0.3V to -7V V CC + |V-|............................................................................+13V Input VoltagesTIN, SHDN to GND...............................................-0.3V to +6V RIN to GND......................................................................±25V Output VoltagesTOUT to GND................................................................±13.2V ROUT, INVALID to GND.....................…-0.3V to (V CC + 0.3V)Short-Circuit DurationTOUT to GND.........................................................ContinuousContinuous Power Dissipation10-Pin µMAX (derate 5.6mW/°C above +70°C)..........444mW Operating Temperature RangesMAX331_ECUB.................................................0°C to +70°C MAX331_EEUB..............................................-40°C to +85°C Junction Temperature.....................................................+150°C Storage Temperature Range............................-65°C to +150°C Lead Temperature (soldering, 10s)................................+300°CMAX3311E/MAX3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)TIMING CHARACTERISTICSM A X 3311E /M A X 3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX 4_______________________________________________________________________________________Typical Operating Characteristics(V CC = +5V, 0.1µF capacitors, transmitter loaded with 3k Ωand C L , T A = +25°C, unless otherwise noted.)0428612101410001500500200025003000SLEW RATEvs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S L E W R A T E (V /µs )-5-4-3-2-10123456050010001500200025003000TRANSMITTER OUTPUT VOLTAGEvs. LOAD CAPACITANCELOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P U T V O L T A G E (V )010001500500200025003000SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)Detailed DescriptionSingle Charge-Pump Voltage ConverterThe MAX3311E/MAX3313E internal power supply has a single inverting charge pump that provides a negative voltage from a single +5V supply. The charge pump operates in a discontinuous mode and requires a flying capacitor (C1) and a reservoir capacitor (C2) to gener-ate the V- supply.RS-232-Compatible DriverThe transmitter is an inverting level translator that con-verts CMOS-logic levels to EIA/TIA-232 compatible lev-els. It guarantees data rates up to 460kbps with worst-case loads of 3k Ωin parallel with 1000pF. When SHDN is driven low, the transmitter is disabled and put into tri-state. The transmitter input does not have an internal pullup resistor.RS-232 ReceiverThe MAX3311E/MAX3313E receiver converts RS-232signals to CMOS-logic output levels. The MAX3311E receiver will remain active during shutdown mode. The MAX3313E INVALID indicates when an RS-232 signal is present at the receiver input, and therefore when the port is in use.The MAX3313E INVALID output is pulled low when no valid RS-232 signal level is detected on the receiver input.MAX3311E Shutdown ModeIn shutdown mode, the charge pump is turned off, V- is pulled to ground, and the transmitter output is disabled (Table 1). This reduces supply current typically to 1µA.The time required to exit shutdown is less than 25ms.Applications InformationCapacitor SelectionThe capacitor type used for C1 and C2 is not critical for proper operation; either polarized or nonpolarized capacitors are acceptable. If polarized capacitors are used, connect polarity as shown in the Typical Operating Circuit . The charge pump requires 0.1µF capacitors. Increasing the capacitor values (e.g., by a factor of 2) reduces power consumption. C2 can beincreased without changing C1’s value. However, do not increase C1’s value without also increasing the value of C2 and C BYPASS to maintain the proper ratios (C1 to the other capacitors).When using the minimum 0.1µF capacitors, make sure the capacitance does not degrade excessively with temperature. If in doubt, use capacitors with a larger nominal value. The capacitor ’s equivalent series resis-tance (ESR) usually rises at low temperatures and influ-ences the amount of ripple on V-.To reduce the output impedance at V-, use larger capacitors (up to 10µF).Bypass V CC to ground with at least 0.1µF. In applica-tions sensitive to power-supply noise generated by the charge pump, decouple V CC to ground with a capaci-tor the same size as (or larger than) charge-pump capacitors C1 and C2.Transmitter Output when ExitingShutdownFigure 1 shows the transmitter output when exiting shutdown mode. The transmitter is loaded with 3k Ωin parallel with 1000pF. The transmitter output displays no ringing or undesirable transients as the MAX3311E comes out of shutdown. Note that the transmitter is enabled only when the magnitude of V- exceeds approximately -3V.High Data RatesThe MAX3311E/MAX3313E maintain RS-232-compati-ble ±3.7V minimum transmitter output voltage even atMAX3311E/MAX3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX5Figure 1. Transmitter Output when Exiting Shutdown or Powering Up10µs/divSHDNTOUT5V/div1.5V/divTIN = GNDTIN = V CCM A X 3311E /M A X 3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX 6_______________________________________________________________________________________high data rates. Figure 2 shows a transmitter loopback test circuit. Figure 3 shows the loopback test result at 120kbps, and Figure 4 shows the same test at 250kbps.±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electro-static discharges encountered during handling and assembly. The MAX3311E/MAX3313E driver outputsand receiver inputs have extra protection against static discharge. Maxim ’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD structures withstand high ESD in all states: normal operation, shutdown, and powered down. After an ESD event, Maxim ’s E versions keep working without latchup; whereas, competing products can latch and must be powered down to remove latchup.ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the product family are characterized for protection to ±15kV using the Human Body Model.ESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test setup, test methodology, and test results.Human Body ModelFigure 5 shows the Human Body Model, and Figure 6shows the current waveform it generates when dis-charged into low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest,which is then discharged into the test device through a 1.5k Ωresistor.Machine ModelThe Machine Model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis-tance. Its objective is to emulate the stress caused by contact that occurs with handling and assembly during manufacturing. Of course, all pins require this protec-tion during manufacturing, not just RS-232 inputs and outputs. Therefore, after PC board assembly, the Machine Model is less relevant to I/O ports.Figure 4. Loopback Test Results at 250kbps2µs/divTOUTTINROUTFigure 3. Loopback Test Results at 120kbps 5µs/divTOUTTINROUTMAX3311E/MAX3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX_______________________________________________________________________________________7Figure 5. Human Body ESD Test ModelFigure 6. Human Body Current WaveformPin Configurations (continued)Chip InformationTRANSISTOR COUNT: 278M A X 3311E /M A X 3313E±15kV ESD-Protected, 460kbps, 1µA,RS-232-Compatible Transceivers in µMAX Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.8_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2001 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.______________________________________________________________Pin Description。

MAX3030EEUE中文资料

Operating Temperature Ranges MAX303_EC_ ......................................................0°C to +70°C MAX303_EE_ ...................................................-40°C to +85°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Features
o Meet TIA/EIA-422-B (RS-422) and ITU-T V.11 Recommendation
o ±15kV ESD Protection on Tx Outputs o Hot-Swap Functionality o Guaranteed 20Mbps Data Rate (MAX3030E,
MAX3030E/ MAX3031E

MAX4173FEUT-T中文资料

Operating Temperature Range .......................... -40°C to +85°C Storage Temperature Range ............................ -65°C to +150°C Lead Temperature (soldering, 10s) ................................ +300°C
Ordering Information
PIN-PACKAGE 6 SOT23-6 8 SO 6 SOT23-6 8 SO 6 SOT23-6 8 SO
SOT TOP MARK AABN — AABO — AABP —
________________________________________________________________ Maxim Integrated Products 1
The MAX4173 operates from a single +3V to +28V supply, typically draws only 420µA of supply current over the extended operating temperature range (-40°C to +85°C), and is offered in the space-saving SOT23-6 package.
VSENSE = +100mV, VCC = +12V, VRS+ = +12V, TA = +25°C
VSENSE = +100mV, VCC = +28V, VRS+ = +28V VSENSE = +100mV, VCC = +12V, VRS+ = +0.1V

MAX3232EEUE+T中文资料

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,or visit Maxim's website at .General DescriptionThe MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E +3.0V-powered EIA/TIA-232 and V.28/V.24communications interface devices feature low power con-sumption, high data-rate capabilities, and enhanced electrostatic-discharge (ESD) protection. The enhanced ESD structure protects all transmitter outputs and receiver inputs to ±15kV using IEC 1000-4-2 Air-G ap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge (±9kV for MAX3246E), and ±15kV using the Human Body Model. The logic and receiver I/O pins of the MAX3237E are protected to the above standards, while the transmit-ter output pins are protected to ±15kV using the Human Body Model.A proprietary low-dropout transmitter output stage delivers true RS-232 performance from a +3.0V to +5.5V power supply, using an internal dual charge pump. The charge pump requires only four small 0.1µF capacitors for opera-tion from a +3.3V supply. Each device guarantees opera-tion at data rates of 250kbps while maintaining RS-232output levels. The MAX3237E guarantees operation at 250kbps in the normal operating mode and 1Mbps in the MegaBaud™ operating mode, while maintaining RS-232-compliant output levels.The MAX3222E/MAX3232E have two receivers and two transmitters. The MAX3222E features a 1µA shutdown mode that reduces power consumption in battery-pow-ered portable systems. The MAX3222E receivers remain active in shutdown mode, allowing monitoring of external devices while consuming only 1µA of supply current. The MAX3222E and MAX3232E are pin, package, and func-tionally compatible with the industry-standard MAX242and MAX232, respectively.The MAX3241E/MAX3246E are complete serial ports (three drivers/five receivers) designed for notebook and subnotebook computers. The MAX3237E (five drivers/three receivers) is ideal for peripheral applications that require fast data transfer. These devices feature a shut-down mode in which all receivers remain active, while consuming only 1µA (MAX3241E/MAX3246E) or 10nA (MAX3237E).The MAX3222E, MAX3232E, and MAX3241E are avail-able in space-saving SO, SSOP, TQFN and TSSOP pack-ages. The MAX3237E is offered in an SSOP package.The MAX3246E is offered in the ultra-small 6 x 6 UCSP™package.ApplicationsBattery-Powered Equipment PrintersCell PhonesSmart Phones Cell-Phone Data Cables xDSL ModemsNotebook, Subnotebook,and Palmtop ComputersNext-Generation Device Features♦For Space-Constrained ApplicationsMAX3228E/MAX3229E: ±15kV ESD-Protected, +2.5V to +5.5V, RS-232 Transceivers in UCSP ♦For Low-Voltage or Data Cable ApplicationsMAX3380E/MAX3381E: +2.35V to +5.5V, 1µA, 2Tx/2Rx, RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic PinsMAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246E±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V ,Up to 1Mbps, True RS-232 Transceivers________________________________________________________________Maxim Integrated Products 119-1298; Rev 11; 10/07Ordering Information continued at end of data sheet.*Dice are tested at T A = +25°C, DC parameters only.**EP = Exposed paddle.Pin Configurations, Selector Guide, and Typical Operating Circuits appear at end of data sheet.MegaBaud and UCSP are trademarks of Maxim Integrated Products, Inc.†Covered by U.S. Patent numbers 4,636,930; 4,679,134;4,777,577; 4,797,899; 4,809,152; 4,897,774; 4,999,761; and other patents pending.M A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 TransceiversABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = +3V to +5.5V, C1–C4 = 0.1µF, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Notes 3, 4)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.V CC to GND..............................................................-0.3V to +6V V+ to GND (Note 1)..................................................-0.3V to +7V V- to GND (Note 1)...................................................+0.3V to -7V V+ + |V-| (Note 1).................................................................+13V Input Voltages T_IN, EN , SHDN , MBAUD to GND ........................-0.3V to +6V R_IN to GND.....................................................................±25V Output Voltages T_OUT to GND...............................................................±13.2V R_OUT, R_OUTB (MAX3241E)................-0.3V to (V CC + 0.3V)Short-Circuit Duration, T_OUT to GND.......................Continuous Continuous Power Dissipation (T A = +70°C)16-Pin SSOP (derate 7.14mW/°C above +70°C)..........571mW 16-Pin TSSOP (derate 9.4mW/°C above +70°C).......754.7mW 16-Pin TQFN (derate 20.8mW/°C above +70°C).....1666.7mW 16-Pin Wide SO (derate 9.52mW/°C above +70°C).....762mW 18-Pin Wide SO (derate 9.52mW/°C above +70°C).....762mW 18-Pin PDIP (derate 11.11mW/°C above +70°C)..........889mW 20-Pin TQFN (derate 21.3mW/°C above +70°C)........1702mW 20-Pin TSSOP (derate 10.9mW/°C above +70°C)........879mW 20-Pin SSOP (derate 8.00mW/°C above +70°C)..........640mW 28-Pin SSOP (derate 9.52mW/°C above +70°C)..........762mW 28-Pin Wide SO (derate 12.50mW/°C above +70°C).............1W 28-Pin TSSOP (derate 12.8mW/°C above +70°C)......1026mW 32-Lead Thin QFN (derate 33.3mW/°C above +70°C)..2666mW 6 x 6 UCSP (derate 12.6mW/°C above +70°C).............1010mW Operating Temperature Ranges MAX32_ _EC_ _...................................................0°C to +70°C MAX32_ _EE_ _.................................................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°C Bump Reflow Temperature (Note 2)Infrared, 15s..................................................................+200°C Vapor Phase, 20s..........................................................+215°C Note 1:V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.Note 2:This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the devicecan be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recom-mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow.Preheating is required. Hand or wave soldering is not allowed.MAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 Transceivers_______________________________________________________________________________________3M A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers4_______________________________________________________________________________________TIMING CHARACTERISTICS—MAX3237E(V CC = +3V to +5.5V, C1–C4 = 0.1µF, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Note 3)±10%. MAX3237E: C1–C4 = 0.1µF tested at +3.3V ±5%, C1–C4 = 0.22µF tested at +3.3V ±10%; C1 = 0.047µF, C2, C3, C4 =0.33µF tested at +5.0V ±10%. MAX3246E; C1-C4 = 0.22µF tested at +3.3V ±10%; C1 = 0.22µF, C2, C3, C4 = 0.54µF tested at 5.0V ±10%.Note 4:MAX3246E devices are production tested at +25°C. All limits are guaranteed by design over the operating temperature range.Note 5:The MAX3237E logic inputs have an active positive feedback resistor. The input current goes to zero when the inputs are atthe supply rails.Note 6:MAX3241EEUI is specified at T A = +25°C.Note 7:Transmitter skew is measured at the transmitter zero crosspoints.TIMING CHARACTERISTICS—MAX3222E/MAX3232E/MAX3241E/MAX3246EMAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 Transceivers_______________________________________________________________________________________5-6-4-202460MAX3237ETRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE (MBAUD = GND)LOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P U T V O L T A G E (V )10001500500200025003000531-1-3-5-6-2-42046-5-31-135010001500500200025003000LOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P U T V O L T A G E (V )MAX3237ETRANSMITTER OUTPUT VOLTAGEvs. LOAD CAPACITANCE-7.5-5.0-2.502.55.07.5MAX3237ETRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE (MBAUD = V CC )LOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P U T V O L T A G E (V )500100015002000__________________________________________Typical Operating Characteristics(V CC = +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3k Ωand C L , T A = +25°C, unless otherwise noted.)-6-5-4-3-2-10123456010002000300040005000MAX3241ETRANSMITTER OUTPUT VOLTAGEvs. LOAD CAPACITANCELOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P U T V O L T A G E (V)302010405060020001000300040005000MAX3241EOPERATING SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )04286121014010002000300040005000MAX3241ESLEW RATE vs. LOAD CAPACITANCEM A X 3237E t o c 05LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )-6-5-4-3-2-10123456010002000300040005000MAX3222E/MAX3232ETRANSMITTER OUTPUT VOLTAGEvs. LOAD CAPACITANCELOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P UT V O L T A G E (V )624108141216010002000300040005000MAX3222E/MAX3232ESLEW RATE vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S L E W R A T E (V /μs)2520155103530404520001000300040005000MAX3222E/MAX3232E OPERATING SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )M A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers6_______________________________________________________________________________________Typical Operating Characteristics (continued)(V CC = +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3k Ωand C L , T A = +25°C, unless otherwise noted.)20604080100MAX3237ETRANSMITTER SKEW vs. LOAD CAPACITANCE(MBAUD = V CC )LOAD CAPACITANCE (pF)100015005002000T R A N S M I T T E R S K E W (n s )-6-2-42046-3-51-1352.03.03.52.54.04.55.0SUPPLY VOLTAGE (V)T R A N S M I T T E R O U T P U T V O L T A G E (V )MAX3237ETRANSMITTER OUTPUT VOLTAGE vs. SUPPLY VOLTAGE (MBAUD = GND)10203040502.0MAX3237E SUPPLY CURRENT vs. SUPPLY VOLTAGE (MBAUD = GND)SUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (m A )3.03.52.54.04.55.0MAX3246ETRANSMITTER OUTPUT VOLTAGEvs. LOAD CAPACITANCELOAD CAPACITANCE (pF)T R A N S M I T T E R O U T P U T V O L T A G E (V )4000300010002000-5-4-3-2-101234567-65000468101214160MAX3246ESLEW RATE vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S L EW R A T E (V /μs )200030001000400050001020304050600MAX3246EOPERATING SUPPLY CURRENT vs. LOAD CAPACITANCEM A X 3237E t o c 17LOAD CAPACITANCE (pF)S U P P L Y C U R R EN T (m A )1000200030004000500055453525155024681012MAX3237ESLEW RATE vs. LOAD CAPACITANCE(MBAUD = GND)LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )10001500500200025003000010203050406070MAX3237ESLEW RATE vs. LOAD CAPACITANCE(MBAUD = V CC )LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )5001000150020001020304050MAX3237ESUPPLY CURRENT vs. LOAD CAPACITANCE WHEN TRANSMITTING DATA (MBAUD = GND)LOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )10001500500200025003000MAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 Transceivers_______________________________________________________________________________________7Pin DescriptionM A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers8_______________________________________________________________________________________MAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 Transceivers_______________________________________________________________________________________9Detailed DescriptionDual Charge-Pump Voltage ConverterThe MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246Es’ internal power supply consists of a regu-lated dual charge pump that provides output voltages of +5.5V (doubling charge pump) and -5.5V (inverting charge pump) over the +3.0V to +5.5V V CC range. The charge pump operates in discontinuous mode; if the output voltages are less than 5.5V, the charge pump is enabled, and if the output voltages exceed 5.5V, the charge pump is disabled. Each charge pump requires a flying capacitor (C1, C2) and a reservoir capacitor (C3, C4) to generate the V+ and V- supplies (Figure 1).RS-232 TransmittersThe transmitters are inverting level translators that con-vert TTL/CMOS-logic levels to ±5V EIA/TIA-232-compli-ant levels.The MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E transmitters guarantee a 250kbps data rate with worst-case loads of 3k Ωin parallel with 1000pF,providing compatibility with PC-to-PC communication software (such as LapLink™). Transmitters can be par-alleled to drive multiple receivers or mice.The MAX3222E/MAX3237E/MAX3241E/MAX3246E transmitters are disabled and the outputs are forcedinto a high-impedance state when the device is in shut-down mode (SHDN = G ND). The MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E permit the outputs to be driven up to ±12V in shutdown.The MAX3222E/MAX3232E/MAX3241E/MAX3246E transmitter inputs do not have pullup resistors. Connect unused inputs to GND or V CC . The MAX3237E’s trans-mitter inputs have a 400k Ωactive positive-feedback resistor, allowing unused inputs to be left unconnected.MAX3237E MegaBaud OperationFor higher-speed serial communications, the MAX3237E features MegaBaud operation. In MegaBaud operating mode (MBAUD = V CC ), the MAX3237E transmitters guarantee a 1Mbps data rate with worst-case loads of 3k Ωin parallel with 250pF for +3.0V < V CC < +4.5V. For +5V ±10% operation, the MAX3237E transmitters guarantee a 1Mbps data rate into worst-case loads of 3k Ωin parallel with 1000pF.RS-232 ReceiversThe receivers convert RS-232 signals to CMOS-logic output levels. The MAX3222E/MAX3237E/MAX3241E/MAX3246E receivers have inverting three-state outputs.Drive EN high to place the receiver(s) into a high-impedance state. Receivers can be either active or inactive in shutdown (Table 1).Figure 1. Slew-Rate Test CircuitsLapLink is a trademark of Traveling Software.M A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers10______________________________________________________________________________________The complementary outputs on the MAX3237E/MAX3241E (R_OUTB) are always active, regardless of the state of EN or SHDN . This allows the device to be used for ring indicator applications without forward biasing other devices connected to the receiver outputs. This is ideal for systems where V CC drops to zero in shutdown to accommodate peripherals such as UARTs (Figure 2).MAX3222E/MAX3237E/MAX3241E/MAX3246E Shutdown ModeSupply current falls to less than 1µA in shutdown mode (SHDN = low). The MAX3237E’s supply current falls to10nA (typ) when all receiver inputs are in the invalid range (-0.3V < R_IN < +0.3). When shut down, the device’s charge pumps are shut off, V+ is pulled down to V CC , V- is pulled to ground, and the transmitter out-puts are disabled (high impedance). The time required to recover from shutdown is typically 100µs, as shown in Figure 3. Connect SHDN to V CC if shutdown mode is not used. SHDN has no effect on R_OUT or R_OUTB (MAX3237E/MAX3241E).±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated to protect against electrostatic dis-charges encountered during handling and assembly.The driver outputs and receiver inputs of the MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage.The ESD structures withstand high ESD in all states:normal operation, shutdown, and powered down. After an ESD event, Maxim’s E versions keep working without latchup, whereas competing RS-232 products can latch and must be powered down to remove latchup.Furthermore, the MAX3237E logic I/O pins also have ±15kV ESD protection. Protecting the logic I/O pins to ±15kV makes the MAX3237E ideal for data cable applications.SHDN T2OUTT1OUT5V/div2V/divV CC = 3.3V C1–C4 = 0.1μFFigure 3. Transmitter Outputs Recovering from Shutdown or Powering UpMAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 TransceiversESD protection can be tested in various ways; the transmitter outputs and receiver inputs for the MAX3222E/MAX3232E/MAX3241E/MAX3246E are characterized for protection to the following limits:•±15kV using the Human Body Model•±8kV using the Contact Discharge method specified in IEC 1000-4-2•±9kV (MAX3246E only) using the Contact Discharge method specified in IEC 1000-4-2•±15kV using the Air-G ap Discharge method speci-fied in IEC 1000-4-2Figure 4a. Human Body ESD Test ModelFigure 4b. Human Body Model Current WaveformFigure 5a. IEC 1000-4-2 ESD Test Model Figure 5b. IEC 1000-4-2 ESD Generator Current WaveformM A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceiverscharacterized for protection to ±15kV per the Human Body Model.ESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test setup, test methodology, and test results.Human Body ModelFigure 4a shows the Human Body Model, and Figure 4b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest,which is then discharged into the test device through a 1.5k Ωresistor.IEC 1000-4-2The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifi-cally refer to integrated circuits. The MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E help you design equipment that meets level 4 (the highest level)of IEC 1000-4-2, without the need for additional ESD-protection components.The major difference between tests done using the Human Body Model and IEC 1000-4-2 is higher peak current in IEC 1000-4-2, because series resistance is lower in the IEC 1000-4-2 model. Hence, the ESD with-stand voltage measured to IEC 1000-4-2 is generally lower than that measured using the Human Body Model. Figure 5a shows the IEC 1000-4-2 model, and Figure 5b shows the current waveform for the ±8kV IEC 1000-4-2 level 4 ESD Contact Discharge test. The Air-G ap Discharge test involves approaching the device with a charged probe. The Contact Discharge method connects the probe to the device before the probe is energized.Machine ModelThe Machine Model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis-tance. Its objective is to emulate the stress caused by contact that occurs with handling and assembly during manufacturing. All pins require this protection during manufacturing, not just RS-232 inputs and outputs.Therefore, after PC board assembly, the Machine Model is less relevant to I/O ports.Table 2. Required Minimum Capacitor ValuesFigure 6a. MAX3241E Transmitter Output Voltage vs. Load Current Per TransmitterTable 3. Logic-Family Compatibility with Various Supply VoltagesMAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 TransceiversApplications InformationCapacitor SelectionThe capacitor type used for C1–C4 is not critical for proper operation; polarized or nonpolarized capacitors can be used. The charge pump requires 0.1µF capaci-tors for 3.3V operation. For other supply voltages, see Table 2 for required capacitor values. Do not use val-ues smaller than those listed in Table 2. Increasing the capacitor values (e.g., by a factor of 2) reduces ripple on the transmitter outputs and slightly reduces power consumption. C2, C3, and C4 can be increased without changing C1’s value. However, do not increase C1without also increasing the values of C2, C3, C4,and C BYPASS to maintain the proper ratios (C1 to the other capacitors).When using the minimum required capacitor values,make sure the capacitor value does not degradeexcessively with temperature. If in doubt, use capaci-tors with a larger nominal value. The capacitor’s equiv-alent series resistance (ESR), which usually rises at low temperatures, influences the amount of ripple on V+and V-.Power-Supply DecouplingIn most circumstances, a 0.1µF V CC bypass capacitor is adequate. In applications sensitive to power-supply noise, use a capacitor of the same value as charge-pump capacitor C1. Connect bypass capacitors as close to the IC as possible.Operation Down to 2.7VTransmitter outputs meet EIA/TIA-562 levels of ±3.7V with supply voltages as low as 2.7V.Figure 6b. Mouse Driver Test CircuitM A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 TransceiversFigure 7. Loopback Test CircuitT1IN T1OUTR1OUT5V/div5V/div5V/divV CC = 3.3V C1–C4 = 0.1μFFigure 8. MAX3241E Loopback Test Result at 120kbps T1INT1OUTR1OUT5V/div5V/div5V/divV CC = 3.3V, C1–C4 = 0.1μFFigure 9. MAX3241E Loopback Test Result at 250kbps+5V 0+5V 0-5V +5VT_INT_OUT5k Ω + 250pFR_OUTV CC = 3.3V C1–C4 = 0.1μFFigure 10. MAX3237E Loopback Test Result at 1000kbps (MBAUD = V CC )Transmitter Outputs Recoveringfrom ShutdownFigure 3 shows two transmitter outputs recovering from shutdown mode. As they become active, the two trans-mitter outputs are shown going to opposite RS-232 levels (one transmitter input is high; the other is low). Each transmitter is loaded with 3k Ωin parallel with 2500pF.The transmitter outputs display no ringing or undesir-able transients as they come out of shutdown. Note thatthe transmitters are enabled only when the magnitude of V- exceeds approximately -3.0V.Mouse DrivabilityThe MAX3241E is designed to power serial mice while operating from low-voltage power supplies. It has been tested with leading mouse brands from manu-facturers such as Microsoft and Logitech. The MAX3241E successfully drove all serial mice tested and met their current and voltage requirements.MAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 TransceiversFigure 6a shows the transmitter output voltages under increasing load current at +3.0V. Figure 6b shows a typical mouse connection using the MAX3241E.High Data RatesThe MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E maintain the RS-232 ±5V minimum transmit-ter output voltage even at high data rates. Figure 7shows a transmitter loopback test circuit. Figure 8shows a loopback test result at 120kbps, and Figure 9shows the same test at 250kbps. For Figure 8, all trans-mitters were driven simultaneously at 120kbps into RS-232 loads in parallel with 1000pF. For Figure 9, a single transmitter was driven at 250kbps, and all transmitters were loaded with an RS-232 receiver in parallel with 1000pF.The MAX3237E maintains the RS-232 ±5.0V minimum transmitter output voltage at data rates up to 1Mbps.Figure 10 shows a loopback test result at 1Mbps with MBAUD = V CC . For Figure 10, all transmitters were loaded with an RS-232 receiver in parallel with 250pF.Interconnection with 3V and 5V LogicThe MAX3222E/MAX3232E/MAX3237E/MAX3241E/MAX3246E can directly interface with various 5V logic families, including ACT and HCT CMOS. See Table 3for more information on possible combinations of inter-connections.UCSP ReliabilityThe UCSP represents a unique packaging form factor that may not perform equally to a packaged product through traditional mechanical reliability tests. UCSP reliability is integrally linked to the user’s assembly methods, circuit board material, and usage environ-ment. The user should closely review these areas when considering use of a UCSP package. Performance through Operating Life Test and Moisture Resistance remains uncompromised as the wafer-fabrication process primarily determines it.Mechanical stress performance is a greater considera-tion for a UCSP package. UCSPs are attached through direct solder contact to the user’s PC board, foregoing the inherent stress relief of a packaged product lead frame. Solder joint contact integrity must be consid-ered. Table 4 shows the testing done to characterize the UCSP reliability performance. In conclusion, the UCSP is capable of performing reliably through envi-ronmental stresses as indicated by the results in the table. Additional usage data and recommendations are detailed in the UCSP application note, which can be found on Maxim’s website at .Table 4. Reliability Test DataM A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers__________________________________________________________Pin ConfigurationsMAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 TransceiversPin Configurations (continued)M A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers__________________________________________________Typical Operating CircuitsMAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 Transceivers_____________________________________Typical Operating Circuits (continued)M A X 3222E /M A X 3232E /M A X 3237E /M A X 3241E †/M A X 3246EUp to 1Mbps, True RS-232 Transceivers_____________________________________Typical Operating Circuits (continued)MAX3222E/MAX3232E/MAX3237E/MAX3241E †/MAX3246EUp to 1Mbps, True RS-232 Transceivers______________________________________________________________________________________21Selector Guide___________________Chip InformationTRANSISTOR COUNT:MAX3222E/MAX3232E: 1129MAX3237E: 2110MAX3241E: 1335MAX3246E: 842PROCESS: BICMOSOrdering Information (continued)†Requires solder temperature profile described in the AbsoluteMaximum Ratings section. UCSP Reliability is integrally linked to the user’s assembly methods, circuit board material, and environment. Refer to the UCSP Reliability Notice in the UCSP Reliability section of this datasheet for more information.**EP = Exposed paddle.。

MAX4823ETP-T中文资料

General DescriptionThe MAX4822–MAX4825 8-channel relay drivers offer built-in kickback protection and drive +3V/+5V non-latching or dual-coil-latching relays. Each independent open-drain output features a 2.7Ω(typ) on-resistance and is guaranteed to sink 70mA (min) of load current.These devices consume less than 300µA (max) quies-cent current and have 1µA output off-leakage current.A Zener-kickback-protection circuit significantly reduces recovery time in applications where switching speed is critical.The MAX4822/MAX4824 feature a unique power-save mode where the relay current, after activation, can be reduced to a level just above the relay hold-current threshold. This mode keeps the relay activated while significantly reducing the power consumption.The MAX4822/MAX4823 feature a 10MH z SPI™-/QSPI™-/MICROWIRE™-compatible serial interface.Input data is shifted into a shift register and latched to the outputs when CS transitions from low to high. Each data bit in the shift register corresponds to a specific output, allowing independent control of all outputs. The MAX4824/MAX4825 feature a 4-bit parallel-input interface. The first 3 bits (A0, A1, A2) determine the out-put address, and the fourth bit (LVL) determines whether the selected output is switched on or off. Data is latched to the outputs when CS transitions from low to high.The MAX4822–MAX4825 feature separate set and reset functions, allowing turn-on or turn-off of all outputs simultaneously with a single control line. Built-in hys-teresis (Schmidt trigger) on all digital inputs allows these devices to be used with slow-rising and falling signals, such as those from optocouplers or RC power-up initialization circuits. The MAX4822–MAX4825 are available in space-saving 4mm x 4mm, 20-pin thin QFN packages. They are specified over the -40°C to +85°C extended temperature range.ApplicationsATE EquipmentDSL Redundancy Protection (ADSL/VDSL/HDSL)T1/E1 Redundancy Protection T3/E3 Redundancy Protection Industrial EquipmentTest Equipment (Oscilloscopes, Spectrum Analyzers)Features♦Built-In Zener Kickback Protection for Fast Recovery ♦Programmable Power-Save Mode Reduces Relay Power Consumption (MAX4822/MAX4824)♦10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial Interface ♦Eight Independent Output Channels ♦Drive +3V and +5V Relays♦Guaranteed 70mA (min) Coil Drive Current ♦Guaranteed 5Ω(max) R ON♦SET / RESET Functions to Turn On/Off All Outputs Simultaneously ♦Serial Digital Output for Daisy Chaining ♦Optional Parallel Interface (MAX4824/MAX4825)♦Low 300µA (max) Quiescent Supply Current ♦Space-Saving, 4mm x 4mm, 20-Pin TQFN PackageMAX4822–MAX4825+3.3V/+5V , 8-Channel Relay Drivers with FastRecovery Time and Power-Save Mode________________________________________________________________Maxim Integrated Products1Ordering Information19-3789; Rev 0; 8/05For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .*For maximum heat dissipation, packages have an exposed pad (EP) on the bottom. Solder exposed pad to GND.SPI is a trademark of Motorola, Inc.QSPI is a trademark of Motorola, Inc.MICROWIRE is a trademark of National Semiconductor Corp.M A X 4822–M A X 4825+3.3V/+5V , 8-Channel Relay Drivers with Fast Recovery Time and Power-Save Mode 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.V CC ........................................................................-0.3V to +6.0V OUT_......................................................................-0.3V to +11V CS , SCLK, DIN, SET , RESET , A0, A1, A2, LVL......-0.3V to +6.0V DOUT..........................................................-0.3V to (V CC + 0.3V)PSAVE........................................................-0.3V to (V CC + 0.3V)Continuous OUT_ Current (all outputs turned on)............150mA Continuous OUT_ Current (single output turned on)........300mAContinuous Power Dissipation (T A = +70°C)20-Lead Thin QFN (derate 16.9mW/°C above +70°C)..1350mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Soldering Temperature (10s)...........................................+300°CELECTRICAL CHARACTERISTICSMAX4822–MAX4825+3.3V/+5V , 8-Channel Relay Drivers with FastRecovery Time and Power-Save Mode_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)M A X 4822–M A X 4825+3.3V/+5V , 8-Channel Relay Drivers with Fast Recovery Time and Power-Save Mode 4_______________________________________________________________________________________Note 4:The circuit can set the output voltage in power-save mode only if I OUT x R ON < V OUTP .Note 5:After relay turn-off, inductive kickback can momentarily cause the OUT_ voltage to exceed V CC . This is considered part of normal operation and does not damage the device.Note 6:Guaranteed by design.Note 7:For other capacitance values, use the equation t PS = 32 x C.ELECTRICAL CHARACTERISTICS (continued)(V CC = +2.7V to +5.5V, T A = -40°C to +85°C, unless otherwise noted. Typical values are at V CC = 2.7V, T A = +25°C, unless otherwise noted.) (Note 1)MAX4822–MAX4825+3.3V/+5V , 8-Channel Relay Drivers with FastRecovery Time and Power-Save Mode_______________________________________________________________________________________5QUIESCENT SUPPLY CURRENTvs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (µA )5.14.72.73.13.53.94.31451501551601651701751801402.35.5QUIESCENT SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (µA )603510-15110120130140150160170180190200100-40850.200.600.401.201.000.801.601.801.402.0014523678910DYNAMIC SUPPLY CURRENTvs. FREQUENCYFREQUENCY (MHz)D Y N A M I C S U P P L Y C U R RE N T (m A )QUIESCENT SUPPLY CURRENT vs. LOGIC-INPUT VOLTAGELOGIC-INPUT VOLTAGE (V)S U P P L Y C U R R E N T (µA )432110020030040050060070080090010001100005ON-RESISTANCE vs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)R O N (Ω)5.14.72.73.13.53.94.31.752.002.252.502.753.003.253.501.502.35.5ON-RESISTANCE vs. TEMPERATURETEMPERATURE (°C)R O N (Ω)603510-152.02.53.03.54.01.5-4085POWER-ON RESET VOLTAGEvs. TEMPERATUREM A X 4822-25 t o c 07TEMPERATURE (°C)P O W E R -O N R E S E T V O L T A G E (V )603510-151.051.101.151.201.251.301.351.401.451.501.551.601.651.701.00-4085OUTPUT OFF-LEAKAGE CURRENTvs. SUPPLY VOLTAGEM A X 4822-25 t o c 08SUPPLY VOLTAGE (V)O U T P U T O F F -L E A K A G E (pA )5.14.74.33.93.53.12.712345602.3 5.5OUTPUT OFF-LEAKAGE CURRENTvs. TEMPERATURETEMPERATURE (°C)O U T P U T O F F -L E A K A G E (n A )603510-150.010.11100.001-4085Typical Operating Characteristics(V CC = 3.3V, T A = +25°C, unless otherwise noted.)M A X 4822–M A X 4825+3.3V/+5V , 8-Channel Relay Drivers with Fast Recovery Time and Power-Save Mode 6_______________________________________________________________________________________OUT_ TURN-ON DELAY TIME vs. SUPPLY VOLTAGEM A X 4822-25 t o c 10SUPPLY VOLTAGE (V)I O N D E L A Y T I M E (n s )5.14.74.33.93.53.12.7406080100120140202.35.5OUT_ TURN-OFF DELAY TIMEvs. SUPPLY VOLTAGEM A X 4822-25 t o c 11SUPPLY VOLTAGE (V)I O F F D E L A Y T I M E (n s ) 5.14.74.33.93.53.12.760080010001200140016004002.3 5.5INPUT-LOGIC THRESHOLD vs. SUPPLY VOLTAGEM A X 4822-25 t o c 2SUPPLY VOLTAGE (V)I N P U T -L O G I C T H R E S H O L D (V )5.14.73.9 4.33.1 3.52.71.11.21.31.41.51.61.71.81.92.02.11.02.3 5.5BACK EMF CLAMPING WITH STANDARD 3V RELAY V CC = 3.3V MAX4822-25 toc13100µs/div0V0VCS 5V/divVOUT 2V/divPOWER-SAVE DELAY TIMEvs. CAPACITANCECAPACITANCE (nF)t P S (m s )800600200400510152030253540001000POWER-SAVE DELAY TIME vs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)t P S (m s )5.14.73.94.33.13.52.73.553.603.653.703.753.803.853.903.954.003.502.35.50.30.40.60.50.70.810050150200250300OUTPUT VOLTAGE vs. OUTPUT CURRENTIN POWER-SAVE MODE (PSAVE REGISTER = 111)M A X 4822 t o c 16OUTPUT CURRENT (mA)O U T P U T V O L T A G E (V )Typical Operating Characteristics (continued)(V CC = 3.3V, T A = +25°C, unless otherwise noted.)MAX4822–MAX4825+3.3V/+5V , 8-Channel Relay Drivers with FastRecovery Time and Power-Save Mode_______________________________________________________________________________________7MAX4822/MAX4823 Pin DescriptionM A X 4822–M A X 4825+3.3V/+5V , 8-Channel Relay Drivers with Fast Recovery Time and Power-Save Mode 8_______________________________________________________________________________________MAX4822/MAX4823 Pin Description (continued)MAX4824/MAX4825 Pin DescriptionDetailed DescriptionSerial Interface (MAX4822/MAX4823)Depending on the MAX4822/MAX4823 device, the serial interface can be controlled by either 8- or 16-bit words as depicted in Figures 1 and 2. The MAX4823 does not support power-save mode, so the serial interface con-sists of an 8-bit-only shift register for faster control.The MAX4822 consists of a 16-bit shift register and par-allel latch controlled by SCLK and CS . The input to the shift register is a 16-bit word. In the MAX4822, the first 8 bits determine the register address and are followedsponds to the MSB of the 8-bit register address in Figure 1, while bit D7 corresponds to the MSB of the 8bits of data in the same Figure 1.The MAX4823 consists of an 8-bit shift register and par-allel latch controlled by SCLK and CS . The input to the shift register is an 8-bit word. Each data bit controls one of the eight outputs, with the most significant bit (D7) corresponding to OUT8, and the least significant bit (D0) corresponding to OUT1 (see Figure 2).MAX4822–MAX4825+3.3V/+5V , 8-Channel Relay Drivers with FastRecovery Time and Power-Save Mode_______________________________________________________________________________________9M A X 4822–M A X 4825When CS is low (MAX4822/MAX4823 device is select-ed), data at DIN is clocked into the shift register syn-chronously with SCLK’s rising edge. Driving CS from low to high latches the data in the shift register (Figures 5 and 6).DOUT is the output of the shift register. Data appears on DOUT synchronously with SCLK’s falling edge and is identical to the data at DIN delayed by eight clock cycles for the MAX4823, or 16 clock cycles for the MAX4822. When shifting the input data, A7 is the first input bit in and out of the shift register for the MAX4822device. D7 is the first bit in or out of the shift register for+3.3V/+5V , 8-Channel Relay Drivers with Fast Recovery Time and Power-Save Mode 10______________________________________________________________________________________Figure 1. 16-Bit Register Map for MAX4822the MAX4823 device. If the address A0…….A7 is not 00h or 01h, then the outputs and the PSAVE configura-tion register are not updated. The address is stored in the shift register only.While CS is low, the OUT_ outputs always remain in their previous state. For the MAX4823, drive CS high after 8bits of data have been shifted in to update the output state of the MAX4823, and to further inhibit data from entering the shift register. For the MAX4822, drive CS high after 16 bits of data have been shifted in to update the output state of the MAX4822, and to further inhibit data from entering the shift register. When CS is high, transi-tions at DIN and SCLK have no effect on the output, and the first input bit A7 (or D7) is present at DOUT.For the MAX4822, if the number of data bits entered while CS is low is greater or less than 16, the shift regis-ter contains only the last 16 bits, regardless of when they were entered. For the MAX4823, if the number of data bits entered while CS is low is greater or less than 8, the shift register contains only the last 8 data bits,regardless of when they were entered.Parallel Interface (MAX4824/MAX4825)The parallel interface consists of 3 address bits (A0,A1, A2) and one level selector bit (LVL). The address bits determine which output is updated, and the level bit determines whether the addressed output is switched on (LVL = high) or off (LVL = low). When CS is high, the address and level bits have no effect on the state of the outputs. Driving CS from low to high latchesMAX4822–MAX4825Recovery Time and Power-Save Mode______________________________________________________________________________________11Figure 4. 3-Wire Serial-Interface Timing DiagramFigure 2. 8-Bit Register Map for MAX4823M A X 4822–M A X 4825level data to the parallel register and updates the state of the outputs. Address data entered after CS is pulled low is not reflected in the state of the outputs following the next low-to-high transition on CS (Figure 7).SET/RESET FunctionsThe MAX4822–MAX4825 feature set and reset inputs that allow simultaneous turn-on or turn-off of all outputs using a single control line. Drive SET low to set all latch-es and registers to 1 and turn all outputs on. SET over-rides all serial/parallel control inputs. Drive RESET low to clear all latches and registers and to turn all outputs off. RESET overrides all other inputs including SET .Power-On ResetThe MAX4822–MAX4825 feature power-on reset. The power-on reset function causes all latches to be cleared automatically upon power-up. This ensures that all outputs come up in the off or high-impedance state.Applications InformationDaisy ChainingThe MAX4822/MAX4823 feature a digital output (DOUT) that provides a simple way to daisy chain multi-ple devices. This feature allows driving large banks of relays using only a single serial interface. To daisy chain multiple devices, connect all CS inputs together,and connect the DOUT of one device to the DIN of another device (see Figure 8). During operation, a stream of serial data is shifted through the MAX4822/MAX4823 devices in series. When CS goes high, all outputs update simultaneously.The MAX4822/MAX4823 can also be used in a slave configuration that allows individual addressing of devices. Connect all the DIN inputs together, and usethe CS input to address one device at a time. Drive CS low to select a slave and input the data into the shift register. Drive CS high to latch the data and turn on the appropriate outputs. Typically, in this configuration only one slave is addressed at a time.Power-Save ModeThe MAX4822/MAX4824 feature a unique power-save mode where the relay current, after activation, can be reduced to a level just above the relay hold-current threshold. This mode keeps the relay activated while significantly reducing the power consumption.In serial mode (MAX4822), choose between seven cur-rent levels ranging from 30% to 90% of the nominal cur-rent in 10% increments. The actual percentage is determined by the power-save configuration register (Figure 1).In parallel mode (MAX4824), the power-save current is fixed at 60% of the nominal current.Power-Save TimerEvery time there is a write operation to the device (CS transitions from low to high), the MAX4822/MAX4824start charging the capacitor connected to PSAVE. The serial power-save implementation is such that a write operation does not change the state of channels already in power-save mode (unless the write turns the channel OFF).After a certain time period, t PS (determined by the capacitor value), the capacitor reaches a voltage threshold that sets all active outputs to power-save mode. The t PS period should be made long enough to allow the relay to turn on completely. The time period t PS can be adjusted by using different capacitor valuesRecovery Time and Power-Save Mode 12______________________________________________________________________________________Figure 5. 3-Wire Serial-Interface Operation for MAX4822connected to PSAVE. The value t PS is given by the fol-lowing formula:t PS = 32 x Cwhere C is in µF and t PS is in ms.For example, if the desired t PS is 20ms, then the required capacitor value is 20 / 32 = 0.625µF.Power-Save Mode AccuracyThe current through the relay is controlled by setting the voltage at OUT_ to a percentage of the V CC supply as specified under the Electrical Characteristics and in the register description. The current through the relay (I OUT )depends on the switch on-resistance, R ON,in addition to the relay resistance R R according to the fol-lowing relation:I OUT = V CC / (R ON + R R )The power-save, current-setting I PS depends on the fraction αof the supply voltage V CC that is set by the loop depending on the following relation:I PS = V CC - (αx V CC ) / R RTherefore:I PS / I OUT = (1- α) x (1 + R ON / R R )This relation shows how the fraction of reduction in the current depends on the switch on-resistance, as well as from the accuracy of the voltage setting (α). The higher the R ON with respect to R R, the higher the inaccuracy.This is particularly true at low voltage when the relay resistance is low (less than 40Ω) and the switch can account for up to 10% of the total resistance. In addi-tion, when the supply-voltage setting (α) is low (10% or 20%) and the supply voltage (V CC ) is low, the voltage drop across the switch (I OUT x R ON ) may already exceed, or may be very close to, the desired voltage-setting value.Daisy Chaining and Power-Save ModeIn a normal configuration using the power-save feature,several MAX4822s can be daisy chained as shown in Figure 9. For each MAX4822, the power-save timing t PD (time it takes to reduce the relay current once the relay is actuated) is controlled by the capacitor con-nected to PSAVE.An alternative configuration that eliminates the PSAVE capacitors uses a common PSAVE control line driven by an open-drain n-channel MOSFET (Figure 10). In this con-figuration, the PSAVE inputs are connected together to asynchronously control the power-save timing for all the MAX4822s in the chain. The µC/µP drives the n-channel MOSFET low for the duration of a write cycle to the SPI chain, plus some delay time to allow the relays to close.(This time is typically specified in the relay data sheet.)Once this delay time has elapsed, the n-channel MOSFET is turned off, allowing the MAX4822’s internal 35µA pullup current to raise PSAVE to a logic-high level, activating the power-save mode in all active outputs.MOSFET SelectionIn the daisy-chain configuration of Figure 10, the n-channel MOSFET drives PSAVE low. When the n-channel MOSFET is turned off, PSAVE is pulled high by an internal 35µA pullup in each MAX4822, and the power-save mode is enabled. Because of the paralleled PSAVE pullup currents, the required size of the n-channel MOSFET depends upon the number of MAX4822 devices in the chain. Determine the size of the n-channel MOSFET by the following relation:R ON < 1428 / NMAX4822–MAX4825Recovery Time and Power-Save Mode______________________________________________________________________________________13Figure 6. 3-Wire Serial-Interface Operation for the MAX4823Figure 7. Parallel-Interface Timing DiagramM A X 4822–M A X 4825where N is the total number of MAX4822 devices in a single chain, and R ON is the on-resistance of the n-channel MOSFET in Ωs.For example, if N = 10:R ON < 142ΩAn n-channel MOSFET with R ON less than 142Ωis required for a daisy chain of 10 MAX4822 devices.Inductive Kickback Protection withFast Recovery TimeThe MAX4822–MAX4825 feature built-in inductive kick-back protection to reduce the voltage spike on OUT_generated by a relay’s coil inductance when the output is suddenly switched off. An internal Zener clamp allows the inductor current to flow back to ground. The Zener configuration significantly reduces the recovery time (time it takes to turn off the relay) when compared to protection configurations with just one diode across the coil.Recovery Time and Power-Save Mode 14______________________________________________________________________________________Figure 9. Daisy-Chained MAX4822s with a Capacitor Connected to PSAVEFigure 8. Daisy-Chain ConfigurationMAX4822–MAX4825Recovery Time and Power-Save Mode______________________________________________________________________________________15Figure 10. Daisy-Chaining MAX4822s with a PSAVE Connected to an n-Channel MOSFETChip InformationTRANSISTOR COUNT: 5799PROCESS: BiCMOSM A X 4822–M A X 4825Recovery Time and Power-Save Mode 16______________________________________________________________________________________MAX4822/MAX4823 Functional Diagram (Serial Interface)MAX4822–MAX4825Recovery Time and Power-Save Mode______________________________________________________________________________________17MAX4824/MAX4825 Functional Diagram (Parallel Interface)M A X 4822–M A X 4825Recovery Time and Power-Save Mode 18______________________________________________________________________________________Pin ConfigurationsRecovery Time and Power-Save Mode Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses areimplied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________19©2005 Maxim Integrated Products Printed USAis a registered trademark of Maxim Integrated Products, Inc.MAX4822–MAX4825Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to /packages.)。

MAX6380UR34-T中文资料

General DescriptionThe MAX6375–MAX6380 are ultra-low-power circuits used for monitoring battery, power-supply, and regulat-ed system voltages. Each detector contains a precision bandgap reference, comparator, and internally trimmed resistors that set specified trip threshold voltages.These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when monitoring nominal system voltages from 2.5V to 5V.These circuits perform a single function: they assert an output signal whenever the V CC supply voltage falls below a preset threshold. The devices are differentiated by their output logic configurations and preset thresh-old voltages. The MAX6375/MAX6378 (push-pull) and MAX6377/MAX6380 (open-drain) have an active-low output (OUT is logic low when V CC is below V TH ). The MAX6376/MAX6379 have an active-high push-pull out-put (OUT is logic high when V CC is below V TH ). All parts are guaranteed to be in the correct output logic state for V CC down to 1V. The detector is designed to ignore fast transients on V CC . The MAX6375/MAX6376/MAX6377 have voltage thresholds between 2.20V and 3.08V in approximately 100mV increments. The MAX6378/MAX6379/MAX6380 have voltage thresholds between 3.30V and 4.63V in approximately 100mV increments.Ultra-low supply current of 500nA (MAX6375/MAX6376/MAX6377) makes these parts ideal for use in portable equipment. All six devices are available in a space-sav-ing SC70 package or in a tiny SOT23 package.ApplicationsPrecision Battery Monitoring Load Switching/Power SequencingPower-Supply Monitoring in Digital/Analog Systems Portable/Battery-Powered EquipmentFeatureso Ultra-Low 500nA Supply Current (MAX6375/MAX6376/MAX6377)o Thresholds Available from 2.20V to 4.63V in Approximately 100mV Incrementso ±2.5% Threshold Accuracy Over Temperature o Low Costo Available in Three Versions: Push-Pull OUT ,Push-Pull OUT, and Open-Drain OUT o Power-Supply Transient Immunity o No External Components o Available in Either a 3-Pin SC70 or 3-Pin SOT23 PackageMAX6375–MAX63803-Pin, Ultra-Low-Power SC70/SOT23Voltage Detectors________________________________________________________________Maxim Integrated Products 1Pin Configuration19-1721; Rev 2; 2/03*The MAX6375/MAX6376/MAX6377 are available in factory-pre-set thresholds from 2.20V to 3.08V, in approximately 0.1V incre-ments. The MAX6378/MAX6379/MAX6380 are available infactory-preset thresholds from 3.30V to 4.63V, in approximately 0.1V increments. Choose the desired threshold suffix fromTable 1 and insert it in the blank spaces following R.There are 21 standard versions, with a required order increment of 2500pieces. Sample stock is generally held on the standard versions only (see the Selector Guide). The required order increment is 10,000 pieces for nonstandard versions (Table 2). Contact facto-ry for availability. All devices available in tape-and-reel only.Selector Guide appears at end of data sheet.For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Ordering information continued at end of data sheetM A X 6375–M A X 63803-Pin, Ultra-Low-Power SC70/SOT23Voltage Detectors 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = full range, T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C and V CC = 3V.) (Note 1)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Terminal Voltage (with respect to GND)V CC ...........................................................................-0.3V to +6V OUT, OUT (push-pull)................................-0.3V to (V CC + 0.3V)OUT (open-drain).....................................................-0.3V to +6V Input Current (V CC ).............................................................20mA Output Current (OUT, OUT )................................................20mAContinuous Power Dissipation (T A = +70°C)3-Pin SC70 (derate 2.17mW/°C above +70°C)...........174mW 3-Pin SOT23 (derate 4mW/°C above +70°C)..............320mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°CNote 1:Production tested at +25°C only. Overtemperature limits are guaranteed by design, not production tested.MAX6375–MAX63803-Pin, Ultra-Low-Power SC70/SOT23Voltage Detectors__________________________________________Typical Operating Characteristics(V CC = 5V, T A = +25°C, unless otherwise noted.)00.30.20.10.40.50.60.70.80.91.0-40-2020406080SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (µA )050100150200-40-2020406080PROPAGATION DELAY (FALLING)vs. TEMPERATURETEMPERATURE (°C)P R O P A G A T I O N D E L A Y (µs )040208060120100140-4020-20406080PROPAGATION DELAY (RISING)vs. TEMPERATURETEMPERATURE (°C)P R O P A G A T I O N D E L A Y (µs )50011001000MAXIMUM TRANSIENT DURATION vs. THRESHOLD OVERDRIVE100300400200THRESHOLD OVERDRIVEV TH - V CC (mV)M A X I M U M T R A N S I E N T D U R A T I O N (µs )10Pin DescriptionM A X 6375–M A X 63803-Pin, Ultra-Low-Power SC70/SOT23Voltage Detectors____________Applications InformationInterfacing to Different Logic Voltage ComponentsThe MAX6377/MAX6380 have an active-low, open-drain output. This output structure sinks current when OUT is asserted. Connect a pullup resistor from OUT to any supply voltage up to 5.50V (Figure 1). Select a resistor value large enough to allow a valid logic low (see Electrical Characteristics ), and small enough to register a logic high while supplying all input current and leakage paths connected to the OUT line.Negative-Going V CC TransientsThese devices are relatively immune to short-duration,negative-going V CC transients (glitches). The Typical Operating Characteristics show the Maximum Transient Duration vs. Threshold Overdrive graph, for which out-put pulses are not generated. The graph shows the maximum pulse width that a negative-going V CC tran-sient may typically have before the devices issue out-put signals. As the amplitude of the transient increases,the maximum-allowable pulse width decreases.Figure 1. Interfacing to Different Logic Voltage ComponentsTable 1. Factory-Trimmed Reset Thresholds ‡3-Pin, Ultra-Low-Power SC70/SOT23Voltage Detectors_______________________________________________________________________________________5Table 2. Device Marking Codes and Minimum Order IncrementsMAX6375–MAX6380M A X 6375–M A X 63803-Pin, Ultra-Low-Power SC70/SOT23Voltage Detectors 6___________________Chip InformationTRANSISTOR COUNT: 419Selector Guide**S ample stock is generally held on all standard versions.Contact factory for availability of nonstandard versions.Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600_____________________7©2003 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.3-Pin, Ultra-Low-Power SC70/SOT23Voltage DetectorsMAX6375–MAX6380Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MAX3043CUE+中文资料

General DescriptionThe MAX3040–MAX3045 is a family of 5V quad RS-485/RS-422 transmitters designed for digital data trans-mission over twisted-pair balanced lines. All transmitter outputs are protected to ±10kV using the Human Body Model. In addition the MAX3040–MAX3045 withstand ±4kV per IEC 1000-4-4 Electrical Fast Transient/Burst Stressing. The MAX3040/MAX3043 (250kbps) and the MAX3041/MAX3044 (2.5Mbps) are slew-rate limited transmitters that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free transmission.The MAX3040–MAX3045 feature a hot-swap capability*that eliminates false transitions on the data cable during power-up or hot insertion. The MAX3042B/MAX3045B are optimized for data transfer rates up to 20Mbps, the MAX3041/MAX3044 for data rates up to 2.5Mbps, and the MAX3040/MAX3043 for data rates up to 250kbps.The MAX3040–MAX3045 offer optimum performance when used with the MAX3093E or MAX3095 5V quad differential line receivers or MAX3094E/MAX3096 3V quad differential line receivers.The MAX3040–MAX3045 are ESD-protected pin-compat-ible, low-power upgrades to the industry-standard ‘SN75174 and ‘DS26LS31C. They are available in space-saving TSSOP, narrow SO, and wide SO packages.*Patent pendingApplicationsTelecommunications Equipment Industrial Motor ControlTransmitter for ESD-Sensitive Applications Hand-Held Equipment Industrial PLCs NetworkingFeatureso ESD Protection: ±10kV—Human Body Model o Single +5V Operationo Guaranteed Device-to-Device Skew(MAX3040/MAX3041/MAX3043/MAX3044)o Pin-Compatible with ‘SN75174, ‘26LS31C and LTC487o Hot-Swappable for Telecom Applications o Up to 20Mbps Data Rate (MAX3042B/MAX3045B)o Slew-Rate Limited (Data Rates at 2.5Mbps and 250kbps)o 2nA Low-Power Shutdown Mode o 1mA Operating Supply Currento ±4kV EFT Fast Transient Burst Immunity per IEC 1000-4-4o Level 2 Surge Immunity per IEC 1000-4-5,Unshielded Cable Model o Ultra-Small 16-Pin TSSOP, 16-Pin Narrow SO, and Wide 16-Pin SOMAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters________________________________________________________________Maxim Integrated Products1Pin ConfigurationsSelector GuideOrdering Information19-2143; Rev 1; 12/01Ordering Information continued at end of data sheet.For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .M A X 3040–M A X 3045±10kV ESD-Protected, Quad 5V RS-485/RS-422TransmittersABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.All voltages referenced to ground (GND).Supply Voltage (V CC ).............................................................+7V Control Input Voltage (EN, EN , EN_) .........-0.3V to (V CC + 0.3V)Driver Input Voltage (T_IN).........................-0.3V to (V CC + 0.3V)Driver Output Voltage (Y_, Z_)(Driver Disabled).............................................-7.5V to +12.5V Driver Output Voltage (Y_, Z_)(Driver Enabled).................................................-7.5V to +10V Continuous Power Dissipation (T A = +70°C)16-Pin TSSOP (derate 9.4mW/°C above +70°C)..........755mW16-Pin Narrow SO (derate 8.70mW/°C above +70°C)..696mW 16-Pin Wide SO (derate 9.52mW/°C above +70°C).....762mW Operating Temperature RangeMAX304_C_E.......................................................0°C to +70°C MAX304_E_E....................................................-40°C to +85°C Maximum Junction Temperature.....................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422TransmittersSWITCHING CHARACTERISTICS —MAX3040/MAX3043SWITCHING CHARACTERISTICS —MAX3041/MAX3044M A X 3040–M A X 3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters 4_______________________________________________________________________________________Note 2:∆V OD and ∆V OC are the changes in V OD and V OC , respectively, when the transmitter input changes state.Note 3:This input current level is for the hot-swap enable (EN_, EN, EN ) inputs and is present until the first transition only. After thefirst transition the input reverts to a standard high-impedance CMOS input with input current I IN . For the first 20µs the input current may be as high as 1mA. During this period the input is disabled.Note 4:Maximum current level applies to peak current just prior to foldback-current limiting. Minimum current level applies duringcurrent limiting.SWITCHING CHARACTERISTICS —MAX3041/MAX3044 (continued)(V CC = +5V ±5%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5V and T A = +25°C.)OUTPUT LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )54-6-5-4-2-1012-3310203040506070800-76OUTPUT CURRENT vs. TRANSMITTEROUTPUT HIGH VOLTAGE0.70.81.00.91.11.220103040506070SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U RR E N T (m A )10010000105152025353040450.1110MAX3040/MAX3043SUPPLY CURRENT vs. DATA RATEDATA RATE (kbps)S U P P L Y C U R R E N T (m A )4000.1110100100010,000MAX3041/MAX3044SUPPLY CURRENT vs. DATA RATEDATA RATE (kbps)S U P P L Y C U R R E N T (m A )1052015353025MAX3042B/MAX3045BSUPPLY CURRENT vs. DATA RATEDATA RATE (kbps)0.1100100010,000110100,000S U P P L Y C U R R E N T (m A )60010203050400201040306050700426810OUTPUT CURRENT vs. TRANSMITTEROUTPUT LOW VOLTAGEOUTPUT LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )MAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters_______________________________________________________________________________________5Typical Operating Characteristics(V CC = +5V, T A = +25°C, unless otherwise noted.)020104030605070021345OUTPUT CURRENTvs. DIFFERENTIAL OUTPUT VOLTAGEM A X 3040 t oc 07DIFFERENTIAL OUTPUT VOLTAGE (V)O U T P U T C U R R E N T (m A )2.102.202.152.352.302.252.502.452.402.5520301040506070TRANSMITTER DIFFERENTIAL OUTPUTVOLTAGE vs. TEMPERATURETEMPERATURE (°C)D I F FE R E N T I A L O U T P U T V O L T A G E (V )M A X 3040–M A X 3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters 6_______________________________________________________________________________________MAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters7Detailed DescriptionThe MAX3040–MAX3045 are quad RS-485/RS-422 trans-mitters. They operate from a single +5V power supply and are designed to give optimum performance when used with the MAX3093E/MAX3095 5V quad RS-485/RS-422 receivers or MAX3094E/MAX3096 3V quad RS-485/RS-422 receivers. The MAX3040–MAX3045 only need 1mA of operating supply current and consume 2nA when they enter a low-power shutdown mode. The MAX3040–MAX3045 also feature a hot-swap capability allowing line insertion without erroneous data transfer.The MAX3042B/MAX3045B are capable of transferring data up to 20Mbps, the MAX3041/MAX3044 for data rates up to 2.5Mbps, and the MAX3040/MAX3043 for data rates up to 250kbps. All transmitter outputs are pro-tected to ±10kV using the Human Body Model.±10kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electro-static discharges (ESD) encountered during handling and assembly. The MAX3040–MAX3045 transmitter outputs have extra protection against electrostatic dis-charges found in normal operation. Maxim ’s engineers have developed state-of-the-art structures to protect these pins against the application of ±10kV ESD (Human Body Model), without damage.ESD Test ConditionsESD performance depends on a number of conditions.Contact Maxim for a reliability report that documents test setup, methodology, and results.Human Body ModelFigure 6a shows the Human Body Model, and Figure 6b shows the current waveform it generates when dis-charged into low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest,which is then discharged into the device through a 1.5k Ωresistor.Machine ModelThe Machine Model for ESD testing uses a 200pF stor-age capacitor and zero-discharge resistance. It mimics the stress caused by handling during manufacturing and assembly. Of course, all pins (not just RS-485inputs) require this protection during manufacturing.Therefore, the Machine Model is less relevant to the I/O ports than are the Human Body Model.±4kV Electrical Fast Transient/Burst Testing(IEC 1000-4-4)IEC 1000-4-4 Electrical Fast Transient/Burst (EFT/B) is an immunity test for the evaluation of electrical and electronic systems during operating conditions. The test was adapted for evaluation of integrated circuits with power applied. Repetitive fast transients with severe pulsed EMI were applied to signal and control ports. Over 15,000 distinct discharges per minute are sent to each interface port of the IC or equipment under test (EUT) simultaneously with a minimum test duration time of one minute. This simulates stress due to dis-placement current from electrical transients on AC mains, or other telecommunication lines in close prox-imity. Short rise times and very specific repetition rates are essential to the validity of the test.Stress placed on the EUT is severe. In addition to the controlled individual discharges placed on the EUT,extraneous noise and ringing on the transmission line can multiply the number of discharges as well as increase the magnitude of each discharge. All cabling was left unterminated to simulate worst-case reflections.The MAX3040–MAX3045 were setup as specified in IEC 1000-4-4 and the Typical Operating Circuit of this data sheet. The amplitude, pulse rise time, pulse dura-tion, pulse repetition period, burst duration, and burst period (Figure 8)of the burst generator were all verified with a digital oscilloscope according to the specifica-tions in IEC 1000-4-4 sections 6.1.1 and 6.1.2. A simpli-fied diagram of the EFT/B generator is shown in Figure 7. The burst stresses were applied to Y1–Y4 and Z1–Z4simultaneously.IEC 1000-4-4 provides several levels of test severity (see Table 1). The MAX3040–MAX3045 pass the 4000V stress, a special category “X ” beyond the highest level for severe (transient) industrial environments for telecommunication lines.M A X 3040–M A X 3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters 8_______________________________________________________________________________________MAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters_______________________________________________________________________________________9IEC 1000-4-4 Burst/Electrical FastTransient Test Levels (For Communication Lines)The stresses are applied while the MAX3040–MAX3045are powered up. Test results are reported as:1)Normal performance within the specification limits.2)Temporary degradation or loss of function or perfor-mance which is self-recoverable.3)Temporary degradation, loss of function or perfor-mance requiring operator intervention, such as sys-tem reset.4)Degradation or loss of function not recoverable due to damage.The MAX3040–MAX3045 meets classification 2 listed above. Additionally, the MAX3040–MAX3045 will not latchup during the IEC burst stress events.Hot-Swap CapabilityHot-Swap InputsWhen circuit boards are plugged into a “hot ” back-plane, there can be disturbances to the differential sig-nal levels that could be detected by receivers connected to the transmission line. This erroneous data could cause data errors to an RS-485/RS-422 system.To avoid this, the MAX3040–MAX3045 have hot-swap capable inputs.When a circuit board is plugged into a “hot ” backplane there is an interval during which the processor is going through its power-up sequence. During this time, the processor ’s output drivers are high impedance and will be unable to drive the enable inputs of the MAX3040–MAX3045 (EN, EN , EN_) to defined logic lev-els. Leakage currents from these high impedance dri-vers, of as much as 10µA, could cause the enable inputs of the MAX3040–MAX3045 to drift high or low.Additionally, parasitic capacitance of the circuit board could cause capacitive coupling of the enable inputs to either G ND or V CC . These factors could cause the enable inputs of the MAX3040–MAX3045 to drift to lev-els that may enable the transmitter outputs (Y_ and Z_).To avoid this problem, the hot-swap input provides a method of holding the enable inputs of the MAX3040–MAX3045 in the disabled state as V CC ramps up. This hot-swap input is able to overcome the leakage currents and parasitic capacitances that may pull the enable inputs to the enabled state.Hot-Swap Input CircuitryIn the MAX3040–MAX3045 the enable inputs feature hot-swap capability. At the input there are two NMOSdevices, Q1 and Q2 (Figure 9). When V CC is ramping up from 0, an internal 10µs timer turns on Q2 and sets the SR latch, which also turns on Q1. Transistors Q2, a 700µA current sink, and Q1, an 85µA current sink, pull EN to GND through a 5.6k Ωresistor. Q2 is designed to pull the EN input to the disabled state against an exter-nal parasitic capacitance of up to 100pF that is trying to enable the EN input. After 10µs, the timer turns Q2 off and Q1 remains on, holding the EN input low against three-state output leakages that might enable EN. Q1remains on until an external source overcomes theM A X 3040–M A X 3045required input current. At this time the SR latch resets and Q1 turns off. When Q1 turns off, EN reverts to a standard, high-impedance CMOS input. Whenever V CC drops below 1V, the hot-swap input is reset.The EN12 and EN34 input structures are identical to the EN input. For the EN input, there is a complimentary cir-cuit employing two PMOS devices pulling the EN input to V CC .Hot-Swap Line TransientThe circuit of Figure 10 shows a typical offset termina-tion used to guarantee a greater than 200mV offset when a line is not driven. The 50pF represents the mini-mum parasitic capacitance which would exist in a typi-cal application. In most cases, more capacitance exists in the system and will reduce the magnitude of the glitch. During a “hot-swap ” event when the driver is connected to the line and is powered up, the driver must not cause the differential signal to drop below 200mV. Figures 11 and 12 show the results of the MAX3040–MAX3045 during power-up for two different V CC ramp rates (0.1V/µs and 1V/µs). The photos show the V CC ramp, the single-ended signal on each side of the 100Ωtermination, the differential signal across the termination, and shows the hot-swap line transient stays above the 200mV RS-485 specification.Operation of Enable PinsThe MAX3040–MAX3045 family has two enable-func-tional versions:The MAX3040/MAX3041/MAX3042B have two transmit-ter enable inputs EN12 and EN34. EN12 controls the transmitters 1 and 2, and EN34 controls transmitters 3and 4. EN12 and EN34 are active-high and the part will enter the low-power shutdown mode when both are pulled low. The transmitter outputs are high impedance when disabled (Table 2).The MAX3043/MAX3044/MAX3045B have two transmit-ter enable inputs EN and EN , which are active-high and active-low, respectively. When EN is logic high or EN is logic low all transmitters are active. When EN is pulled low and EN is driven high, all transmitters are disabled and the part enters the low-power shutdown mode. The transmitter outputs are high impedance when disabled (Table 3).Applications InformationTypical ApplicationsThe MAX3040–MAX3045 offer optimum performance when used with the MAX3093E/MAX3095 5V quad receivers or MAX3094E/MAX3096 3V quad differential line receivers. Figure 13 shows a typical RS-485 con-nection for transmitting and receiving data and Figure 14 shows a typical multi-point connection.±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters 10______________________________________________________________________________________Figure 9. Simplified Structure of the Driver Enable Pin (EN)MAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters______________________________________________________________________________________11V CC 2V/div Y-Z(20mV/div)238mVY200mV/div Z200mV/div Figure 11. Differential Power-Up Glitch (0.1V/µs)V CC 2V/div Y-Z(5mV/div)238mVY50mV/div Z50mV/div 1µs/divFigure 12. Differential Power-Up Glitch (1V/µs)Figure 10. Differential Power-Up Glitch (Hot Swap)M A X 3040–M A X 3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters 12______________________________________________________________________________________Typical Multiple-Point ConnectionFigure 14 shows a typical multiple-point connection for the MAX3040–MAX3045 with the MAX3095. Because of the high frequencies and the distances involved, high attention must be paid to transmission-line effects while using termination resistors. A terminating resistor (RT)is simply a resistor that should be placed at the extreme ends of the cable to match the characteristic impedance of the cable. When the termination resis-tance is not the same value as the characteristic impedance of the cable, reflections will occur as the signal is traveling down the cable. Although some reflections are inevitable due to the cable and resistor tolerances, large mismatches can cause significant reflections resulting in errors in the data. With this in mind, it is very important to match the terminating resis-tance and the characteristic impedance as closely as possible. As a general rule in a multi-drop system, termi-nation resistors should always be placed at both ends of the cable.Figure 13. Typical Connection of a Quad Transmitter and a Quad Receiver as a PairMAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422Transmitters13Pin Configurations (continued)Figure 12. Typical Connection for Multiple-Point RS-485 BusChip InformationTRANSISTOR COUNT: 545PROCESS: CMOSOrdering Information (continued)M A X 3040–M A X 3045±10kV ESD-Protected, Quad 5V RS-485/422Transmitters 14______________________________________________________________________________________Ordering Information (continued)Pin Configurations (continued)MAX3040–MAX3045±10kV ESD-Protected, Quad 5V RS-485/RS-422TransmittersM axim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a M axim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________15©2001 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)。

MAX3243EEAI-T中文资料

MAX3221E/MAX3223E/MAX3243E †
Ordering Information
PART MAX3221ECTE MAX3221ECUE MAX3221ECAE MAX3221EEAE MAX3221EETE MAX3221EEUE MAX3223ECPP MAX3223ECAP MAX3223ECUP MAX3223ECTP MAX3223EEPP MAX3223EEAP MAX3223EEUP MAX3223EETP TEMP RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C PINPACKAGE 16 Thin QFN-EP (5mm x 5mm) 16 TSSOP 16 SSOP 16 Thin QFN-EP (5mm x 5mm) 20 Plastic DIP 20 SSOP 20 TSSOP PKG CODE T1655-2 — — — T1655-2 — — — —
Pin Configurations appear at end of data sheet. Typical Operating Circuits appear at end of data sheet.
MAX3223E MAX3243E
AutoShutdown and ntegrated Products, Inc.
VCC to GND ..............................................................-0.3V to +6V V+ to GND (Note 1) ..................................................-0.3V to +7V V- to GND (Note 1) ...................................................+0.3V to -7V V+ + |V-| (Note 1) .................................................................+13V Input Voltages T_IN, EN, FORCEON, FORCEOFF to GND ............-0.3V to +6V R_IN to GND ......................................................................±25V Output Voltages T_OUT to GND................................................................±13.2V R_OUT, R2OUTB, INVALID to GND .........-0.3V to (VCC + 0.3V) Short-Circuit Duration T_OUT to GND .........................................................Continuous Continuous Power Dissipation (TA = +70°C) 16-Pin SSOP (derate 7.14mW/°C above +70°C) ...........571mW 16-Pin TSSOP (derate 9.4mW/°C above +70°C) ........754.7mW 16-Pin TQFN (derate 20.8mW/°C above +70°C) ......1666.7mW 20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW 20-Pin SSOP (derate 8.00mW/°C above +70°C) ...........640mW 20-Pin TSSOP (derate 10.9mW/°C above +70°C) .........879mW 20-Pin TQFN (derate 21.3mW/°C above +70°C) ......1702.1mW 28-Pin SSOP (derate 9.52mW/°C above +70°C)............762mW 28-Pin TSSOP (derate 12.8mW/°C above +70°C) .......1026mW Operating Temperature Ranges MAX32_ _EC_ _ ....................................................0°C to +70°C MAX32_ _EE_ _..................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10s) .................................+300°C

MAX3181EEUK-T中文资料

For free samples & the latest literature: , or phone 1-800-998-8800.For small orders, phone 1-800-835-8769.General DescriptionThe MAX3180E–MAX3183E single RS -232 receivers in a SOT23-5 package are designed for space- and cost-constrained applications requiring minimal RS -232communications. The receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, to ±8kV using IEC 1000-4-2 Contact Discharge, and to ±15kV per the Human Body Model, ensuring compliance with international standards.The devices minimize power and heat dissipation by consuming only 0.5µA supply current from a +3.0V to +5.5V supply, and they guarantee true RS -232 perfor-mance up to a 1.5Mbps data rate. The MAX3180E/MAX3182E feature a three-state TTL/CMOS receiver output that is controlled by an EN logic input. The MAX3181E/MAX3183E feature an INVALID output that indicates valid RS-232 signals at the receiver input for applications requiring automatic system wake-up. The MAX3182E/MAX3183E have a noninverting output,while the MAX3180E/MAX3181E have a standard inverting output.ApplicationsFeatureso Tiny SOT23-5 Packageo ESD-Protected RS-232 Input±15kV—Human Body Model±8kV—IEC 1000-4-2, Contact Discharge ±15kV—IEC 1000-4-2, Air-Gap Discharge o 0.5µA Supply Currento 1.5Mbps Guaranteed Data Rateo Meets EIA/TIA-232 and V.28/V.24 Specifications Down to V CC = +3.0V o INVALID Output Indicates Valid RS-232 Signal at Receiver Input (MAX3181E/MAX3183E)o Three-State TTL/CMOS Receiver Output (MAX3180E/MAX3182E)o Noninverting RS-232 Output (MAX3182E/MAX3183E)MAX3180E–MAX3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-5________________________________________________________________Maxim Integrated Products 119-1479; Rev 1; 7/99Ordering InformationM A X 3180E –M A X 3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-52_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = +3.0V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V, T A = +25°C.) (Note 1)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.V CC to GND..............................................................-0.3V to +6V RIN to GND..........................................................................±25V EN , ROUT, INVALID to GND......................-0.3V to (V CC + 0.3V)Continuous Power Dissipation (T A = +70°C)SOT23-5 (derate 7.1mW/°C above +70°C)...................571mWOperating Temperature Range ...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10sec).............................+300°CMAX3180E–MAX3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-5_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)(V CC = +3.0V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V, T A = +25°C.) (Note 1)Typical Operating Characteristics(V CC = +5V, T A = +25°C, unless otherwise noted.)00.20.10.40.30.60.50.700.51.0 1.5SUPPLY CURRENT vs. DATA RATEDATA RATE (Mbps)S U P P L Y C U R R E N T (m A )2302702502903303103503.0 3.5 5.04.54.0 5.5RIN TO INVALID HIGH vs. SUPPLY VOLTAGEM A X 3180E -02V CC (V)t I N V H (n s )Note 1:Specifications are 100% tested at T A = +25°C. Limits over temperature are guaranteed by design.Detailed DescriptionThe MAX3180E–MAX3183E are EIA/TIA-232 and V.28/V.24communications receivers that convert RS -232signals to CMOS logic levels. They operate on a +3V to +5.5V supply, have 1.5Mbps data rate capability, and feature enhanced electrostatic discharge (ESD) protec-tion (see ESD Protection ). All of these devices achieve a typical supply current of 0.5µA. The MAX3180E/MAX3182E have a receiver enable control (EN ). The MAX3181E/MAX3183E contain a signal invalid output (INVALID ). The MAX3180E/MAX3181E invert the ROUT signal relative to RIN (standard RS -232). The MAX3182E/MAX3183E outputs are not inverted. The devices come in tiny SOT23-5 packages.M A X 3180E –M A X 3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-54_______________________________________________________________________________________25353045405550603.03.54.04.55.05.5RIN TO INVALID LOW vs. V CCM A X 3180E -03V CC (V)t I N V L (µs )Typical Operating Characteristics (continued)(V CC = +5V, T A = +25°C, unless otherwise noted.)5V010V 0-10V RINROUTENABLE5V 0500ns/divMAX3180EENABLE ASSERTION TO ROUT RESPONSEV CC = 5.0V R L = 50k ΩC L = 100pFReceiver Output EnablePin DescriptionFUNCTIONOutput of the Valid Input Detector Inverting Receiver Output Figure 1. Receiver Propagation-Delay Timing Noninverting Receiver OutputSignal Invalid DetectorIf no valid signal levels appear on RIN for 30µs (typ),INVALID goes low. This event typically occurs if the RS -232 cable is disconnected, or if the connected peripheral transmitter is turned off. INVALID goes high when a valid level is applied to the RS -232 receiver input. Figure 2 shows the input levels and timing dia-gram for INVALID operation.Enable InputThe MAX3180E/MAX3182E feature an enable input (EN ). Drive EN high to force ROUT into a high-imped-ance state. In this state, the devices ignore incoming RS-232 signals. Pull EN low for normal operation.ESD ProtectionAs with all Maxim devices, ES D protection structures are incorporated on all pins to protect against ES D encountered during handling and assembly. The receiver inputs of the MAX3180E–MAX3183E have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures enabling these pins to withstand ESD up to ±15kV without dam-age or latchup. The receiver inputs of the MAX3180E–MAX3183E are characterized for protection to the fol-lowing limits:•±15kV using the Human Body Model•±8kV using the Contact Discharge method specified in IEC 1000-4-2•±15kV using the Air-Gap Discharge method speci-fied in IEC 1000-4-2Human Body ModelFigure 3 shows the Human Body Model, and Figure 4shows the current waveform it generates when dis-charged into a low impedance. This model consists ofa 100pF capacitor charged to the ESD voltage of inter-est, and then discharged into the test device through a 1.5k Ωresistor.MAX3180E–MAX3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-5_______________________________________________________________________________________5Figure 3. Human Body ESD Test ModelFigure 4. Human Body Model Current WaveformFigure 2. Input Levels and INVALID TimingM A X 3180E –M A X 3183EIEC 1000-4-2The IEC 1000-4-2 standard covers ES D testing and performance of finished equipment; it does not specifi-cally refer to ICs. The MAX3180E–MAX3183E enable the design of equipment that meets the highest level (Level 4) of IEC 1000-4-2 without the need for additional ESD-protection components.The major difference between tests done using the Human Body Model and IEC 1000-4-2 is higher peak current in IEC 1000-4-2. Because series resistance is lower in the IEC 1000-4-2 model, the ES D withstand voltage measured to this standard is generally lower than that measured using the Human Body. Figure 5shows the IEC 1000-4-2 model, and Figure 6 shows thecurrent waveform for the ±8kV IEC 1000-4-2 Level 4ESD Contact Discharge test.The Air-Gap test involves approaching the device with a charged probe. The Contact Discharge method con-nects the probe to the device before the probe is ener-gized.Power-Supply DecouplingIn most circumstances, a 0.1µF V CC bypass capacitor is adequate. Connect the bypass capacitor as close to the IC as possible.±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-56_______________________________________________________________________________________Figure 5. IEC 1000-4-2 ESD Test ModelFigure 6. IEC 1000-4-2 ESD Generator Current WaveformMAX3180E–MAX3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-5_______________________________________________________________________________________7Pin Configurations/Functional Diagrams___________________Chip InformationTRANSISTOR COUNT: 41M A X 3180E –M A X 3183E±15kV ESD-Protected, 0.5µA, +3V to +5.5V ,1.5Mbps RS-232 Receivers in SOT23-5Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.8_____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©1999 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information。

ED304T资料

MECHANICAL DATA
Case: TO-251 molded plastic Terminals: Solder plated, solderable per MIL-STD-750,Method 2026 Polarity: Color band denotes cathode Weight: 0.015 ounce, 0.4 gram.
30 25
CAPACITANCE, pF
20 15 10 5 0 1 2 5 10 20 50 100 200 500
REVERSE VOLTAGE, VOLTS
Fig.5- TYPICAL JUNCTION CAPACITANCE
Part Number: ED302T - ED306T
PAGE 2
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3
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1.25 5.0 50 6 80 35
1.25 5.0 50 6 80 35
1.70 5.0 50 6 80 35
o
Volts µA
IR RθJC RθJA T T
RR
C /W ns
o
STG
-55 to +150
C
NOTES: 1. Pulse Test with PW=300µsec, 2% Duty Cycle. 2. Mounted on P.C. Board with 14mm2 (.013mm thick) copper pad areas. Part Number: ED302T - ED306T PAGE 1

亿光光耦EL3043,温度控制专用光耦

6PIN DIP ZERO-CROSS TRIAC DRIVER PHOTOCOUPLER EL303X, EL304X, EL306X, EL308X SeriesFeatures:• Peak breakdown voltage -250V: EL303X -400V: EL304X -600V: EL306X -800V: EL308X• High isolation voltage between input and output (Viso=5000 V rms )•Zero voltage crossing• Pb free and RoHS compliant.•UL and cUL approved(No. E214129)• VDE approved (No.132249)• SEMKO approved • NEMKO approved • DEMKO approved •FIMKO approvedDescriptionThe EL303X, EL304X, EL306X and EL308X series of devices each consist of a GaAs infrared emitting diode optically coupled to a monolithic silicon zero voltage crossing photo triac.They are designed for use with a discrete power triac in the interface of logic systems to equipment powered from 110 to 380 VAC lines,such as solid-state relays, industrial controls, motors, solenoids and consumer appliances.Applications●Solenoid/valve controls ●Light controls●Static power switch ●AC motor drivers ●E.M. contactors●Temperature controls ●AC Motor starters亿光一级代理商超毅电子Absolute Maximum Ratings (Ta=25 )Parameter Symbol Rating Unit Input Forward current I F60mA Reverse voltage V R6VPower dissipationDerating factor (above T a = 85 C)P D100mW3.8mW/°COutputOff-state OutputTerminal Voltage EL303XV DRM250V EL304X400EL306X600EL308X800Peak Repetitive Surge Current(pw=1ms,120pps)I TSM1A On-State RMS Current I T(RMS)100mAPower dissipationDerating factor (above T a = 85 C)P C300mW7.6mW/Total power dissipation P TOT330mW Isolation voltage*1V ISO5000Vrms Operating temperature T OPR-55 to 100 Storage temperature T STG-55 to 125 Soldering Temperature*2T SOL260 Notes:*1AC for 1 minute, R.H.= 40 ~ 60% R.H. In this test, pins 1, 2&3are shorted together, and pins4, 5 & 6are shorted together. *2 For 10 secondsElectro-Optical Characteristics (Ta=25 unless specified otherwise)InputParameter Symbol Min.Typ.*Max.Unit Condition Forward Voltage V F-- 1.5V I F=30mA Reverse Leakage current I R--10µA V R=6V OutputParameter SymbolMin.Typ.*Max.Unit ConditionPeak Blocking Current EL303XEL304XI DRM1--100nAV DRM = Rated V DRMI F=0mAEL306XEL308X500Peak On-state Voltage V TM--3V I TM=100mA peak, I F=Rated I FTCritical Rate of Rise off-state Voltage EL303XEL304XEL306X dv/dt1000--V/µsV PEAK=Rated V DRM, I F=0(Fig. 10)EL308X600--Inhibit Voltage (MT1-MT2voltage above which devicewill not trigger)V INH--20V I F= Rated I FTLeakage in lnhibited State I DRM2--500µA I F= Rated I FT,V DRM=Rated V DRM, off stateTransfer CharacteristicsParameter Symbol Min.Typ.*Max.Unit ConditionLED Trigger Current EL3031EL3041EL3061EL3081I FT--15mA Main terminal Voltage=3V EL3032EL3042EL3062EL3082--10EL3033EL3043EL3063EL3083--5Holding Current I H-280-µA * Typical values at T a= 25°CTypical Electro-Optical Characteristics CurvesFigure 10. Static dv/dt Test Circuit & WaveformMeasurement MethodThe high voltage pulse is set to the required V PEAK value and applied to the D.U.T. output side through the RC circuit above. LED current is not applied. The waveform V T is monitored using a x100 scope probe. By varying R TEST , the dv/dt (slope) is increased, until the D.U.T. is observed to trigger (waveform collapses). The dv/dt is then decreased until the D.U.T. stops triggering. At this point, τRC is recorded and the dv/dt calculated.For example, V PEAK = 600V for EL306X series. The dv/dt value is calculated as follows:V PEAKApplied V T WaveformτRC0.632 x V PEAK0.63 x 600τRCdv/dt = = 378τRC0.632 x V PEAK τRCdv/dt =50 Ω10 k ΩD.U.T.R TESTHigh Voltage Pulse SourceC TESTV TA KT1T2Zero Crossing CircuitOrder InformationPart NumberEL303XY(Z)-Vor EL304XY(Z)-Vor EL306XY(Z)-Vor EL308XY(Z)-VNoteX = Part No. (1, 2 or 3)Y = Lead form option (S, S1, M or none)Z = Tape and reel option (TA, TB or none).V=VDE safety approved optionOption Description Packing quantity None Standard DIP-665units per tube M Wide lead bend(0.4 inch spacing)65units per tube S(TA)Surface mount lead form+ TA tape & reel option1000units per reel S(TB)Surface mount lead form+ TB tape & reel option1000units per reel S1(TA)Surface mount lead form (low profile) + TA tape & reel option1000 units per reel S1(TB)Surface mount lead form (low profile) + TB tape & reel option1000 units per reelPackage Dimension(Dimensions in mm) Standard DIP TypeOption M TypeOption S TypeOption S1 TypeRecommended pad layout for surface mount leadformDevice MarkingNotesEL denotes Everlight3083denotes Device NumberY denotes 1 digit Year codeWW denotes 2 digit Week codeVdenotes VDE optionEL3083YWWVTape dimensionsDimension No.A B Do D1E F Dimension (mm)10.4±0.17.5±0.11.5±0.11.5+0.1/-01.75±0.17.5±0.1Dimension No.Po P1P2t W K Dimension (mm)4.0±0.1512±0.12.0±0.10.35±0.0316.0±0.24.5±0.1Precautions for Use1. Soldering Condition1.1 (A) Maximum Body Case Temperature Profile for evaluation of Reflow ProfileNote: Reference: IPC/JEDEC J-STD-020DPreheatTemperature min (T smin) 150 °CTemperature max (T smax)200°CTime (T smin to T smax) (t s)60-120 secondsAverage ramp-up rate (T smax to T p) 3 °C/second maxOtherLiquidus Temperature (T L)217 °CTime above Liquidus Temperature (t L)60-100 secPeak Temperature (T P) 260°CTime within 5 °C of Actual Peak Temperature: T P-5°C 30 sRamp-Down Rate from Peak Temperature 6°C /second max.Time 25°C to peak temperature8 minutes max.Reflow times 3 times.DISCLAIMER1.Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for abovespecification.2.When using this product, please observe the absolute maximum ratings and the instructions for using outlined in thesespecification sheets. EVERLIGHT assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets.3.These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please don’treproduce or cause anyone to reproduce them without EVERLIGHT’s consent.。

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