MAX5523EUA+中文资料
AXOS系列产品简介说明书
EMC TESTING PRODUCT OVERVIEWCUSTOMER BASE FOR EMC TESTINGCOMPACT TESTERThe AXOS is an ultra-compact immunity tester that performs all the most commonly used transient immunity tests, including Surge, EFT, Dips/Interrupts, AC/Surge Magnetic Field, Ring Wave and Telecom Surge. Full Compliance and Pre-Compliance tests are performed to meet the requirements of a wide variety of transient immunity standards, including IEC 61000-4-x “CE Mark” Basic standards, IEC 60601 for Medical equipment, and many other IEC, ANSI, ITU, UL and specific product standards.P C D 126AD E C 5D E C 6D E C 7I P 4BP A T 50 AP A T 1000Surge 1.2/50 & 8/20, 5.0kV EFT / Burst 5.0kV Dips & InterruptsSurge magnetic field 61000-4-9Insulation testing 1.2/50, 15kV 3-phase surge 32A 3-phase surge 100A 3-phase EFT/Burst 32A 3-phase EFT/Burst 100ACDNs symmetrical data & control lines CDNs asymmetrical data & control lines Capacitive coupling clampsELECTROSTATIC DISCHARGEThe ONYX simulators by HAEFELY HIPOTRONICS have been specially designed to meet all latest international standards, including IEC61000-4-2 Ed. 2 and are the most ergonomic battery and AC power operated 30kV guns on the market. 16kV and 30kV models available, along with a complete range of accessories that ensure a complete ESD test setup (verification equipment, test tables, coupling planes etc).FEATURESSTANDARDS a 16kV and 30kV models a Touch screen operation a Modulara Automatic polarity switching a Remote control software a Remote triggera Bleed-of Functionalitya Lightweight and portable design a Battery and AC operation a Environmental monitoring a Onboard LED EUT light a Smart key functionsa Contact discharge current flow detection a Self-test functiona IEC 61000-4-2 Ed. 2a IEC613402-1/-2a IEC 801-2a IEC 60571a EN 50155 a ANSI C63.16a ISO 10605a ISO 14304a ITU-T K20a MIL-STD-1512/-1514/-750D/-883a RTCA/DO-160a JEDEC 22-A114A a GR-78/1089-COREThe self test function is a built-in self test routine which checks the HV supply, the impulse capacitor, the HV discharge relays, and the insulation of the entire HV circuitry.Bleed-off functionalityThe so called bleed-off functionality of the ONYX simulator ensures via an integrated relay that the EUT is completely discharged before the next ESD pulse is initiated. This functionality ensures a maximum of test accuracy to the user without the need for a discharge brush.Smart Key OperationThe smart key button is integrated at the upper part of the discharge trigger and has various functions which are defined by the user, enabling you to run a sequence of events according to your testing requirements, and simplify test procedures.The functions include user defined discharge voltages steps, sweep voltage, On/Off LED light, Polarity Switching, control and report function.Compliance & ModularityThe design is based on the requirements of all latest international standards, including the latest IEC 61000-4-2 Ed. 2. R/C module values are available from 50-5000 Ohms and 50-1000pF , which enables users to fully test according to many international standards.Contact Discharge Current Flow Detection & Self T estThe unique NO CONTACT detection circuit function continuously monitors whether ESD pulses are discharged to the EUT , ensures users the test was successful and prevents incorrect test results.ONYX 16n16kV Electrostatic Discharge Simulatorn16kV Air & Contact Dischargen150pF/330Ω standard discharge networkn Exchangeable RC modules to meet variousstandard requirements (IEC, ISO, ANSI, MIL)n Ergonomic design and operation (touch screen) n Rechargeable battery or mains operatedn Smart key functionsn Automatic polarity switchingn Remote triggern Self test functionn Includes: Light rigid carrying case, contact and air discharge tips, mains supply, 2 x rechargeable battery pack with chargerSOFTWAREWhy should you use software to perform ESD tests?Because it makes your life easier and helps to make tests more reliable and reproducible. Benefitsn Windows XP, Windows Vista and Windows 7 compatibilityn Support of USB and optical USB interfacesn Easy-to-use and intuitive creator for test plans and test proceduresn Enhanced and highly flexible reporting capabilitiesn Up-to-date design and navigationn Intuitive operationn Independent test station n High end componentsn Very high result accuracy and precision n Higher voltage level of 7.3kV n Spike frequency up to 110 kHz n IEC/EN61000-4-4 Ed. 3n Unique windows based control and reporting software n Distinctive safety features n Ideal for over testingn Multi-test stationn Covers EFT/Burst, Surge, Dips & Interrupts, Magnetic Field, and Insulation Tests n 5.0kV EFT/Burstn Fully meets all latest standards including IEC/EN61000-4-4 Ed. 3n Ideal for pre-compliance testing and CE markingNOTE: Please refer to the COMPACT section on page 3 for details.All our EFT/Burst generators are 100% compliant to the latest standards, including IEC/EN 61000-4-4 Ed. 3, which is mandatory from April 2012.DISTINCTIVE FEATURESSTAND-ALONECOMPACTEFT/BURSTBursts or EFTs (Electrical Fast Transients) are caused by operation of electro-mechanical switches, motors and distribution switch-gear connected to the power distribution network. A typical burst consists of a large number of recurring impulses at high frequency for a short time period.V 90%50%10%FlexibilityDepending on the actual testing requirements, we offer our customers the choice between stand alone and compact testing equipment.Stand alone equipment allow users to test at levels higher than what is usually required within the standards, making such testers ideal for over-testing purposes.Compact solutions allow users to not only cover the latest eft/burst requirements, but also to carry out surge, dips & interrupts, magnetic field, and insulation tests.EFT SOLUTIONSn 5kV Burst Test Systemn Built according to IEC/EN 61000-4-4 Ed. 2 & 3 as well as to ANSI/IEEE C62.41/45 and C37.90.1n Impulse voltage up to 5kVn Frequency range from 1Hz to 1MHzn IEC, random, continuous and real burst mode n Ramp functionsn Integrated automated single-phase CDN for AC and DC up to 16A EUT mains current n Burst parameters editable during testingn 7.3kV Burst Test Systemn Built according to IEC/EN 61000-4-4 Ed. 2 & 3 as well as to ANSI/IEEE C62.41/45 and C37.90.1n Impulse voltage up to 7.3kVn Frequency range from 1Hz to 100kHzn IEC, random, continuous and real burst mode n Ramp functionsn Integrated automated single-phase CDN for AC and DC up to 16A EUT mains current n Burst parameters editable during testingAXOS SERIESPEFT 8010MANUAL 32A THREE-PHASE COUPLING-DECOUPLING NETWORK FOR EFT TESTING100A THREE-PHASE COUPLING/DECOUPLING NET-WORK FOR EFT TESTINGFP-EFT 32MFP-EFT 100M2n Built according to IEC/EN 61000-4-4 Ed. 2 & 3 and ANSI C62.41/45n Superposition of EFT impulses onto three- phase power lines and DC power lines n 8kV maximum impulse voltage n EUT voltage up to 690V/400V ACn EUT mains current up to 100A per phase n Manual coupling path switchingnSynchronization with power supply possiblen Built according to IEC/EN 61000-4-4 Ed. 2 & 3 as well as to ANSI C62.41/45n Superposition of EFT impulses onto three- phase power lines and DC power linesn 8kV maximum impulse voltagen EUT mains voltage up to 690V/400V AC, 110V DC n EUT mains current up to 32A per phase n Synchronization with power supply possible nEUT over-current protectionEFT VERIFICATION SETWAVEFORM VERIFICATION SETOPTIONSn Built according to IEC/EN 61000-4-4 Ed. 2 & 3 and ANSI C37.90.1n 40mm maximum cable size n Up to 8kV impulse voltage n Handy carrying handlen Optional transducer plate for clamp calibration/ verificationn Built according to IEC/EN 61000-4-4 Ed. 2 & 3n For verification/calibration of EFT generators (PEFT 4010, PEFT 8010, AXOS Series)n Combined 50Ω load, 54 dB attenuator n Combined 1 k Ω load, 60 dB attenuator n Required cables includedn Supplied with detailed application noten IEEE 488 interface optionn Three phase verification adaptersn Warning lamps and emergency switches n Fibre optic links (EUT fail)n Test tablesn Dedicated software WinFEAT&R n Upgrade kits for older modelsnReal burst functional extensionn Optical decoupling fibre optic links (RS232)n AC and DC adaptersn Near field test probes (E&H)n Vertical operation stands VOSSURGE - TRANSIENT / LIGHTNINGPRODUCTS AND APPLICATIONSStand-alone, compact, and modular Surge impulse generators are available up to 30kV , which cover a range of EMC surge tests including the classical IEC defined “Combination Wave“ 1.2/50 & 8/20, “Hybrid waves“ defined for telecommunications testing, 10/700, ring wave, damped oscillating wave, magnetic field, and many more.Typical standard applications include IEC, EN and ANSI for power line testing, FCC, Bellcore, ITU and ETSI for telecom testing.Our modular Surge Platform can also be used for product safety testing to UL standards and also ITE requirements. A wide range of accessories from single and three phase CDNs up to 100A and telecoms coupling units, make these systems the most modular and flexible test equipment on themarket.32A THREE-PHASE COUPLING/DECOUPLING NETWORK FOR SURGE TESTINGFP-COMB 32n Built according to IEC/EN 61000-4-5 Ed. 2 & 3n EUT voltage up to 480Vn EUT current up to 32A per phasenTest level max. 7.0kV / 3.5kA n Fully automatic test routinesn Automatic synch source switching n Test object power line bypass mode n Test object overcurrent protection15KV VOLTAGE SURGE GENERATORPS 1500n Built according to IEC/EN 60065,IEC/EN 60950-1 and UL 1414n Impulse voltage up to 15kV n Up to 24 discharges per minute n Positive and Negative Polarity n External trigger inputn Automatic selection of 4M Ω/100 M Ω parallel resistor n Impulse voltage monitor n Includes test pistol n Flash measurement n Insulation/safety testing n Component testingn Small and compact design30KV SURGE TEST SYSTEMSINGLE-PHASE COUPLING/DECOUPLING NETWORKFOR SURGE TESTING UP TO 30KV / 15KAPSURGE 30.2FP-SURGE 3010n Single-phase EUT powering n EUT mains voltage up to 480V n EUT mains current up to 10An Manual selection of coupling path and coupling capacitor n Test level up to 15kV/30kA n EUT overcurrent protection n Large integrated test cabinetn Built according to IEC/EN61000-4-5, IEC/EN 61010, IEC/EN 61643-1 and ANSI C62.41/45n Impulse voltage up to 30kV (combination wave)n Impulse current up to 30kA (8/20 µs)n Combination wave (1.2/50 µs & 8/20 µs)n 8/20 µs, 10/350 µs, 10/1000 µs current pulse n Impulse voltage & current measurement n Automatic polarity switching n Integrated test cabinetPIM 100PIM 110COMBINATION WAVE IMPULSE MODULERING WAVE IMPULSE MODULEn Built according to IEC/EN 61000-4-5 Ed. 1 & 2 and ANSI C62.41/45n 1.2/50 µs open circuit up to 7.4kV n 8/20 µs short circuit up to 3.7kAnImpulse voltage and current monitors n *1° Phase synchronizationn Reliable semiconductor HV-switchn Positive, negative and alternating polarity n Up to 12 pulses per minuten Built according to IEC/EN 61000-4-12 and ANSI C62.41/45n 100 kHz frequency, 0.5 µs rise time n Imp. voltage up to 7.8kV / 12 Ω, 30 Ω and 200 Ωn Impulse voltage and current monitors n *1° phase synchronizationn Positive, negative and alternating polarity n Up to 12 pulses per minuten Reliable semiconductor HV-switch100A THREE-PHASE COUPLING/DECOUPLING NETWORKMANUAL SURGE COUPLING UNIT FOR SYMMETRICAL DATA AND CONTROL LINESPCD 121n Built according to IEC/EN 61000-4-5 Ed. 2 Fig. 14 & Ed. 3 Fig. 10n Coupling of Combination Wave impulses n Up to 2 pairs / 4 wires can be testedn Serial resistors included, 4 x 40/80/160 Ohm n Gas arrestors and Avalanche Breakdown Diodes coupling elements included n Can be used with any surge generator n Impulse voltage up to 6.6kVnSignal Bandwidth up to > 10 MHzPCD 122MANUAL SURGE COUPLING UNIT FOR SYMMETRICAL DATA AND CONTROL LINESn Built according to IEC/EN 61000-4-5 Ed. 2 Fig. 14 & Ed. 3 Fig. 10n Coupling of 10/700 µs impulsesn Up to 2 pairs / 4 wires can be testedn Serial resistors included, 4 x 25/50/100 Ohmn Gas arrestors and Avalanche Breakdown Diodes coupling elements included n Can be used with any surge generator n Impulse voltage up to 6.6kVn Signal Bandwidth up to > 10 MHz.MANUAL SURGE COUPLING/DECOUPLING UNIT FOR DATA AND SURGE DECOUPLING UNIT FOR SYMMETRICAL DATAn Signal Bandwidth up to some 10MHzDEC 7SURGE DECOUPLING UNIT FOR ASYMMETRICAL DATA AND CONTROL LINESn Built according to:IEC/EN 61000-4-5 Ed. 2 Fig. 11, 12 & 13 & Ed. 3 Fig. 9IEC 61000-4-12:1995 Fig. 9, 10, 13 & 14 Array n Decoupling of Combination wave impulsesn Decoupling of Ring Wave (100kHz) impulsesn Up to four wire can be tested simultaneousn Decoupling: Inductors 20mH not compensatedn Protection elements are Varistors and Breakdown avalanche diodesn Can be used with any surge generatorn Impulse voltage up to 6.6kVn Signal Bandwidth up to some 100 HzLOW ENERGY IMPULSE TRANSFORMER FOR INSULATION TESTING NETWORK FOR SURGE PLATFORMPOWER FREQUENCY MAGNETIC FIELD TEST SYSTEMMAG 1000n Built according to IEC/EN 61000-4-8n 1m x 1m antenna included w/ stand n Up to 1100A/m field strength n Horizontal and Vertical testingn Continuous and short duration testing n Built in power supply at 50/60Hz n Simple interfaceMSURGE-APULSE MAGNETIC FIELD TEST SYSTEMnBuilt according to IEC/EN 61000-4-9n 8/20µs magnetic field wave shape n Up to 3000A/m field strength n Sturdy constructionn Horizontal and vertical testingn Control from HAEFEL Y surge generators n Single turn coil with 1m x 1m square area n Optional 2m x 2.6m magnetic coilDip: decrease of the mains VoltageSOFTWAREThe WinFEAT&R software is the latest generation of control and reporting software, based on a modern Drag and Drop concept. With such ease of use, even users with minimum technical experience will be carrying out tests in no time.This unique software allows users to run user specified or pre-defined tests according to the latest standards, and monitors and displays real time output current and voltage values.Communication between software and oscilloscope monitoring allows screenshots to be added to the test report.The software runs up to Windows 7 and is compatible with all stand-alone HAEFEL Y HIPOTRONICS test generators.FEATURESn Control and reporting for stand-alone EFT/Burst, Surge, Dips& Interrupts generators.n Drag and Drop applicationn User defined tests can be added and pre-defined tests arealready included (according to the standards).n Output Current/Voltage monitoring during test.n EUT supervision (max/min V/I levels).n User friendly, designed for use by users with minimumtechnical experience.n Automatic synchronization between software and PC.n Test setup uploaded to Oscilloscope.n User defined test report with oscilloscope screenshotoption.n Fully compatible with Windows 7 (32-bit/64-bit)A u g u s t 2013EuropeChinaNorth America Haefely T est AG Haefely T est AG Representative Beijing OfficeHipotronics, Inc.Birsstrasse 300 8-1-602, Fortune Street1650 Route 22 N 4052 Basel No. 67, Chaoyang Road, Chaoyang DistrictBrewster, NY 10509SwitzerlandBeijing, China 100025United States☎ + 41 61 373 4111 ☎ +86 10 8578 8099 ☎ +1 845 230 9245 + 41 61 373 4912+86 10 8578 9908 +1 845 279 2467emc-**********************************.cn*********************HAEFEL Y HIPOTRONICS has a policy of continuous product improvement. We therefore reserve the right to change design and specification without notice.OFFICES:。
max3485esa中文资料
General Description The MAX3483, MAX3485, MAX3486, MAX3488,MAX3490, and MAX3491 are 3.3V , low-power transceivers forRS-485 and RS-422 communication. Each part containsone driver and one receiver. The MAX3483 and MAX3488feature slew-rate-limited drivers that minimize EMI andreduce reflections caused by improperly terminatedcables, allowing error-free data transmission at data ratesup to 250kbps. The partially slew-rate-limited MAX3486transmits up to 2.5Mbps. The MAX3485, MAX3490, andMAX3491 transmit at up to 10Mbps.Drivers are short-circuit current-limited and are protectedagainst excessive power dissipation by thermal shutdowncircuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safe feature thatguarantees a logic-high output if both inputs are opencircuit.The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, andMAX3486 are designed for half-duplex communication.Applications ●Low-Power RS-485/RS-422 Transceivers ●Telecommunications ●Transceivers for EMI-Sensitive Applications ●Industrial-Control Local Area NetworksFeatures●Operate from a Single 3.3V Supply—No Charge Pump!●Interoperable with +5V Logic ●8ns Max Skew (MAX3485/MAX3490/MAX3491)●Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)●2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)●-7V to +12V Common-Mode Input Voltage Range ●Allows up to 32 Transceivers on the Bus ●Full-Duplex and Half-Duplex Versions Available ●Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)●Current-Limiting and Thermal Shutdown for Driver Overload Protection 19-0333; Rev 1; 5/19Ordering Information continued at end of data sheet.*Contact factory for for dice specifications.PARTTEMP . RANGE PIN-PACKAGE MAX3483CPA0°C to +70°C 8 Plastic DIP MAX3483CSA0°C to +70°C 8 SO MAX3483C/D0°C to +70°C Dice*MAX3483EPA-40°C to +85°C 8 Plastic DIP MAX3483ESA-40°C to +85°C 8 SO MAX3485CPA0°C to +70°C 8 Plastic DIP MAX3485CSA0°C to +70°C 8 SO MAX3485C/D0°C to +70°C Dice*MAX3485EPA-40°C to +85°C 8 Plastic DIP MAX3485ESA -40°C to +85°C 8 SO PARTNUMBERGUARANTEED DATA RATE (Mbps)SUPPLY VOLTAGE (V)HALF/FULL DUPLEX SLEW-RATE LIMITED DRIVER/RECEIVER ENABLE SHUTDOWN CURRENT (nA)PIN COUNT MAX34830.25 3.0 to 3.6Half Yes Yes 28MAX348510Half No No 28MAX34862.5Half Yes Yes 28MAX34880.25Half Yes Yes —8MAX349010Half No No —8MAX349110Half No Yes 214MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491Selection TableOrdering Information找电子元器件上宇航军工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 CircuitMAX3486/MAX3488/MAX3490/MAX3491True RS-485/RS-422 TransceiversFigure 22. MAX3488/MAX3490/MAX3491 Full-Duplex RS-485 NetworkFigure 23. Line Repeater for MAX3488/MAX3490/MAX3491MAX3486/MAX3488/MAX3490/MAX3491True RS-485/RS-422 Transceivers。
MAX1483ESA+中文资料
元器件交易网
µMAX is a registered trademark of Maxim Integrated products, Inc.
________________________________________________________________ Maxim Integrated Products 1
元器件交易网
19-0367; Rev 1; 5/06
MAX1482/MAX1483
20µA, 1⁄8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers
_______________General Description
The MAX1482 and MAX1483 are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps. The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit. The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1⁄8-unit-load input impedance that guarantees up to 256 transceivers on the bus.
MAX3225EAAP+中文资料
________________General DescriptionThe MAX3224E/MAX3225E/MAX3226E/MAX3227E/MAX3244E/MAX3245E are 3V-powered EIA/TIA-232and V.28/V.24 communications interfaces with automat-ic shutdown/wakeup features, high data-rate capabili-ties, and enhanced electrostatic discharge (ESD)protection. All transmitter outputs and receiver inputs are protected to ±15kV using IEC 1000-4-2 Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact Discharge,and ±15kV using the Human Body Model.All devices achieve a 1µA supply current using Maxim’s revolutionary AutoShutdown Plus™ feature. These devices automatically enter a low-power shutdown mode when the RS-232 cable is disconnected or the transmitters of the connected peripherals are inactive,and the UART driving the transmitter inputs is inactive for more than 30 seconds. They turn on again when they sense a valid transition at any transmitter or receiv-er input. AutoShutdown Plus saves power without changes to the existing BIOS or operating system.The MAX3225E/MAX3227E/MAX3245E also feature MegaBaud™ operation, guaranteeing 1Mbps for high-speed applications such as communicating with ISDN modems. The MAX3224E/MAX3226E/MAX3244E guar-antee 250kbps operation. The transceivers have a pro-prietary low-dropout transmitter output stage enabling true RS-232 performance from a +3.0V to +5.5V supply with a dual charge pump. The charge pump requires only four small 0.1µF capacitors for operation from a 3.3V supply. The MAX3224E–MAX3227E feature a logic-level output (READY) that asserts when the charge pump is regulating and the device is ready to begin transmitting.All devices are available in a space-saving TQFN,SSOP, and TSSOP (MAX3224E/MAX3225E/MAX3244E/MAX3245E) packages.________________________ApplicationsNotebook, Subnotebook, and Palmtop Computers Cellular PhonesBattery-Powered Equipment Hand-Held Equipment Peripherals Printers__Next Generation Device Features♦For Space-Constrained Applications:MAX3228E/MAX3229E: ±15kV ESD-Protected,+2.5V to +5.5V, RS-232 Transceivers in UCSP MAX3222E/MAX3232E/MAX3241E †/MAX3246E:±15kV ESD-Protected, Down to 10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232 Transceivers (MAX3246E Available in UCSP™)♦For Low-Voltage or Data Cable Applications:MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA,2Tx/2Rx RS-232 Transceivers with ±15kV ESD-Protected I/O and Logic PinsMAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus________________________________________________________________Maxim Integrated Products119-1339; Rev 9; 2/07Ordering Information continued at end of data sheet.*EP = Exposed paddle.†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; 5,649,210; and other patents pending.AutoShutdown Plus, MegaBaud, and UCSP are trademarks of Maxim Integrated Products, Inc.Ordering InformationFor pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .M A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown PlusABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C 1= 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; 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.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, FORCEON, FORCEOFF to GND................-0.3V to +6V R_IN to GND....................................................................±25V Output Voltages T_OUT to GND.............................................................±13.2V R_OUT, INVALID , READY to GND.........-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)....1666.7mW20-Pin TQFN (derate 21.3mW/°C above +70°C)....1702.1mW 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 28-Pin Wide SO (derate 12.5mW/°C above +70°C)............1W 28-Pin SSOP (derate 9.52mW/°C above +70°C).........762mW 28-Pin TSSOP (derate 12.8mW/°C above +70°C).......1026mW 36-Pin TQFN (derate 26.3mW/°C above +70°C)...........2105mW Operating Temperature Ranges MAX32_ _EC_ _.................................................0°C to +70°C MAX32_ _EE_ _................................................-40°C to +85°C MAX32_ _EAA_..............................................-40°C to +125°C Storage Temperature Range.............................-65°C to +160°C Lead Temperature (soldering, 10s).................................+300°C Note 1:V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.MAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)(V CC = +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C 1= 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T A = T MIN to T MAX ,unless otherwise noted. Typical values are at T A = +25°C.)M A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus 4_______________________________________________________________________________________TIMING CHARACTERISTICS—MAX3224E/MAX3226E/MAX3244E(V CC = +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C 1= 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T A = T MIN to T MAX ,unless otherwise noted. Typical values are at T A = +25°C.)TIMING CHARACTERISTICS—MAX3225E/MAX3227E/MAX3245E(V CC = +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C 1= 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T A = T MIN to T MAX ,unless otherwise noted. Typical values are at T= +25°C.)Note 3:Transmitter skew is measured at the transmitter zero cross points.MAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus_______________________________________________________________________________________5-6-5-4-3-2-10123456010002000300040005000MAX3224E/MAX3226ETRANSMITTER 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 )246810121416010002000300040005000MAX3224E/MAX3226ESLEW RATE vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S L E W R A T E (V /μs )5101520253035404520001000300040005000MAX3224E/MAX3226E OPERATING SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )-7.50-2.5-5.02.55.07.501000500150020002500MAX3225E/MAX3227ETRANSMITTER 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 )1510520253035404550010005001500200025003000MAX3225E/MAX3227E TRANSMITTER SKEW vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)T R A N S M I T T E R S K E W (n s)807060504030201005001000150020002500MAX3225E/MAX3227ESLEW RATE vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S L E W R A T E (V /μs )2010403060507090801005001000150020002500MAX3225E/MAX3227E OPERATING SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )20242230282636343238-40020-20406080100MAX3224E–MAX3227E READY TURN-ON TIME vs. TEMPERATURETEMPERATURE (°C)R E A D Y T U R N -O N T I M E (μs )__________________________________________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.)20018016014012010080604020-40020-20406080100MAX3224E–MAX3227E READY TURN-OFF TIME vs. TEMPERATUREM A X 3224-7/44/45E -09TEMPERATURE (°C)R E A D Y T U R N -O F F T I M E (n s )M A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus 6____________________________________________________________________________________________________________________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.)-6-5-4-3-2-10123456010002000300040005000MAX3244ETRANSMITTER 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 )4286121014010002000300040005000MAX3244ESLEW RATE vs. LOAD CAPACITANCEM A X 3224-7/44/45E -11LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )302010405060020001000300040005000MAX3244EOPERATING SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )-7.50-2.5-5.02.55.07.50800400120016002000MAX3245ETRANSMITTER 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 )2010403060507090801000400800120016002000MAX3245EOPERATING SUPPLY CURRENT vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )201040306050700400800120016002000MAX3245ESLEW RATE vs. LOAD CAPACITANCELOAD CAPACITANCE (pF)S L E W R A T E (V /μs )1510520253035404550100020003000MAX3245E TRANSMITT SKEW vs. LOAD CAPACITANCEM A X 3224-7/44/45E -16LOAD CAPACITANCE (pF)T R A N S M I T T E R S K E W (n s )MAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus_______________________________________________________________________________________7M A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus 8_______________________________________________________________________________________Dual Charge-Pump Voltage ConverterThe MAX3224E–MAX3227E/MAX3244E/MAX3245E’s internal power supply consists of a regulated 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 range. The charge pump operates in discontinuous mode: if the output voltages are less than 5.5V, the charge pump ischarge-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.The READY output (MAX3224E–MAX3227E) is low when the charge pumps are disabled in shutdown mode. The READY signal asserts high when V- goes below -4V.MAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus_______________________________________________________________________________________9RS-232 TransmittersThe transmitters are inverting level translators that convert CMOS-logic levels to 5.0V EIA/TIA-232 levels.The MAX3224E/MAX3226E/MAX3244E guarantee a 250kbps data rate (1Mbps, for the MAX3225E/MAX3227E/MAX3245E) with worst-case loads of 3k Ωin parallel with 1000pF, providing compatibility with PC-to-PC com-munication software (such as LapLink™). Transmitters can be paralleled to drive multiple receivers. Figure 1shows a complete system connection.When FORCEOFF is driven to ground or when the Auto-Shutdown Plus circuitry senses that all receiver and transmitter inputs are inactive for more than 30s, the transmitters are disabled and the outputs go into a high-impedance state. When powered off or shut down, the outputs can be driven to ±12V. The transmitter inputs do not have pullup resistors. Connect unused inputs to GND or V CC .Figure 1. Interface Under Control of PMUFigure 2. The MAX3244E/MAX3245E detect RS-232 activity when the UART and interface are shut down.LapLink is a trademark of Traveling Software.M A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus 10______________________________________________________________________________________RS-232 ReceiversThe receivers convert RS-232 signals to CMOS-logic output levels. The MAX3224E–MAX3227E feature inverting outputs that always remain active (Table 1).The MAX3244E/MAX3245E have inverting three-state outputs that are high impedance when shut down (FORCEOFF = GND) (Table 1).The MAX3244E/MAX3245E feature an extra, always active, noninverting output, R2OUTB. R2OUTB output monitors receiver activity while the other receivers are high impedance, allowing ring indicator applications to be monitored without forward biasing other devices connected to the receiver outputs. This is ideal for sys-tems where V CC is set to ground in shutdown to accommodate peripherals such as UARTs (Figure 2).The MAX3224E–MAX3227E/MAX3244E/MAX3245E fea-ture an INVALID output that is enabled low when no valid RS-232 voltage levels have been detected on all receiver inputs. Because INVALID indicates the receiv-er input’s condition, it is independent of FORCEON and FORCEOFF states (Figures 3 and 4).AutoShutdown Plus ModeThe MAX3224E–MAX3227E/MAX3244E/MAX3245E achieve a 1µA supplycurrent with Maxim’s AutoShutdown Plus feature, which operates when FORCEOFF is high and a FORCEON is low. When these devices do not sense a valid signal transition on any receiver and trans-mitter input for 30s, the on-board charge pumps are shut down, reducing supply current to 1µA. This occurs if the RS-232 cable is disconnected or if the connectedTable 1. Output Control Truth TableX = Don’t care*INVALID connected to FORCEON**INVALID connected to FORCEON and FORCEOFFMAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plusperipheral transmitters are turned off, and the UART dri-ving the transmitter inputs is inactive. The system turns on again when a valid transition is applied to any RS-232 receiver or transmitter input. As a result, the sys-tem saves power without changes to the existing BIOS or operating system.Figures 3a and 3b depict valid and invalid RS-232receiver voltage levels. INVALID indicates the receiver input’s condition, and is independent of FORCEON and FORCEOFF states. Figure 3 and Tables 1 and 2 sum-marize the operating modes of the MAX3224E–MAX3227E/MAX3244E/MAX3245E. FORCEON and FORCEOFF override AutoShutdown Plus circuitry.When neither control is asserted, the IC selects between these states automatically based on the last receiver or transmitter input edge received.When shut down, the device’s charge pumps turn off,V+ is pulled to V CC , V- is pulled to ground, the transmit-ter outputs are high impedance, and READY (MAX3224E–MAX3227E) is driven low. The time required to exit shutdown is typically 100µs (Figure 8).By connecting FORCEON to INVALID , the MAX3224E–MAX3227E/MAX3244E/MAX3245E shut down when no valid receiver level and no receiver or transmitter edge is detected for 30s, and wake up when a valid receiver level or receiver or transmitter edge is detected.Figure 3a. INVALID Functional Diagram, INVALID Low Figure 3b. INVALID Functional Diagram, INVALID HighFigure 3c. AutoShutdown Plus LogicFigure 3d. Power-Down LogicFigure 4a. Receiver Positive/Negative Thresholds for INVALIDM A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown PlusBy connecting FORCEON and FORCEOFF to INVALID ,the MAX3224E–MAX3227E/MAX3244E/MAX3245E shut down when no valid receiver level is detected and wake up when a valid receiver level is detected (same functionality as AutoShutdown feature on MAX3221E/MAX3223E/MAX3243E).A mouse or other system with AutoShutdown Plus may need time to wake up. Figure 5 shows a circuit that forces the transmitters on for 100ms, allowing enough time for the other system to realize that the MAX3244E/MAX3245E is awake. If the other system outputs valid RS-232 signal transitions within that time, the RS-232ports on both systems remain enabled.Software-Controlled ShutdownIf direct software control is desired, use INVALID to indicate DTR or ring indicator signal. Tie FORCEOFF and FORCEON together to bypass the AutoShutdown Plus so the line acts like a SHDN input.±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostaticdischarges encountered during handling and assembly.The driver outputs and receiver inputs of the MAX3224E–MAX3227E/MAX3244E/MAX3245E have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures to protectFigure 4b. AutoShutdown Plus, INVALID,and READY Timing DiagramFigure 5. AutoShutdown Plus Initial Turn-On to Wake Up a Mouse or Another SystemMAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plusthese 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.ESD protection can be tested in various ways; the transmitter outputs and receiver inputs of this product family are characterized for protection to the following limits:1)±15kV using the Human Body Model2)±8kV using the Contact-Discharge Method specified in IEC1000-4-23)±15kV using IEC1000-4-2’s Air-Gap Method.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 6a shows the Human Body Model and Figure 6b 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 test device through a 1.5k Ωresistor.Figure 6b. Human Body Current WaveformFigure 7b. IEC1000-4-2 ESD Generator Current WaveformFigure 6a. Human Body ESD Test Model Figure 7a. IEC1000-4-2 ESD Test ModelM A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus IEC1000-4-2The IEC1000-4-2 standard covers ESD testing and per-formance of finished equipment; it does not specifically refer to integrated circuits. The MAX3224E–MAX3227E,MAX3244E/MAX3245E help you design equipment that meets Level 4 (the highest level) of IEC1000-4-2, with-out the need for additional ESD-protection components.The major difference between tests done using the H uman Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2, because series resistance is lower in the IEC1000-4-2 model. Hence, the ESD with-stand voltage measured to IEC1000-4-2 is generally lower than that measured using the H uman Body Model. Figure 7a shows the IEC1000-4-2 model and Figure 7b shows the current waveform for the 8kV,IEC1000-4-2, Level 4, ESD Contact-Discharge Method.The Air-Gap Method 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. 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.__________Applications InformationCapacitor SelectionThe capacitor type used for C1–C4 is not critical for proper operation; polarized or nonpolarized capacitorscan be used. The charge pump requires 0.1µF capaci-tors for 3.3V operation. For other supply voltages, see Table 3 for required capacitor values. Do not use val-ues smaller than those listed in Table 3. 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 degrade excessively 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 that are sensitive to power-supply noise, use a capacitor of the same value as charge-pump capacitor C1. Connect bypass capaci-tors as close to the IC as possible.Transmitter Outputs when Exiting ShutdownFigure 8 shows two transmitter outputs when exiting shutdown mode. As they become active, the two trans-mitter outputs are shown going to opposite RS-232 lev-els (one transmitter input is high, the other is low). Each5μs/divV CC = 3.3V C1–C4 = 0.1μFFigure 8. Transmitter Outputs when Exiting Shutdown or Powering Uptransmitter is loaded with 3k Ωin parallel with 1000pF.The transmitter outputs display no ringing or undesir-able transients as they come out of shutdown. Note that the transmitters are enabled only when the magnitude of V- exceeds approximately -3V.High Data RatesThe MAX3224E/MAX3226E/MAX3244E maintain the RS-232 ±5.0V minimum transmitter output voltage even at high data rates. Figure 9 shows a transmitter loop-back test circuit. Figure 10 shows a loopback test result at 120kbps, and Figure 11 shows the same test at 250kbps. For Figure 10, all transmitters were driven simultaneously at 120kbps into RS-232 loads in parallel with 1000pF. For Figure 11, a single transmitter was dri-ven at 250kbps, and all transmitters were loaded with an RS-232 receiver in parallel with 250pF.The MAX3225E/MAX3227E/MAX3245E maintain the RS-232 ±5.0V minimum transmitter output voltage at data rates up to 1Mbps (MegaBaud). Figure 12 shows a loopback test result with a single transmitter driven at 1Mbps and all transmitters loaded with an RS-232receiver in parallel with 250pF.MAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown PlusFigure 9. Loopback Test CircuitFigure 10. MAX3224E/MAX3226E/MAX3244E Loopback Test Result at 120kbps2μs/divV CC = 3.3VFigure 11. MAX3224E/MAX3226E/MAX3244E Loopback Test Result at 250kbps2μs/divV CC = 3.3VFigure 12. MAX3225E/MAX3227E/MAX3245E Loopback Test Result at 1Mbps200ns/div5V/div5V/div5V/divV CC = 3.3VM A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus Figure 13a. Mouse Driver Test CircuitMAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown PlusMouse DriveabilityThe MAX3244E/MAX3245E are specifically designed to power serial mice while operating from low-voltage power supplies. They have been tested with leading mouse brands from manufacturers such as Microsoft and Logitech. The MAX3244E/MAX3245E successfully drove all serial mice tested and met their respective current and voltage requirements. The MAX3244E/MAX3245E dual charge pump ensures the transmitters supply at least ±5V during worst-case conditions.Figure 13b shows the transmitter output voltages under increasing load current. Figure 13a shows a typical mouse connection.Interconnection with 3V and 5V LogicThe MAX3224E–MAX3227E/MAX3244E/MAX3245E can directly interface with various 5V logic families, includ-ing ACT and HCT CMOS. See Table 4 for more informa-tion on possible combinations of interconnections.Table 5 lists other Maxim ESD-powered transceivers.Table 5. ±15kV ESD-Protected, 3.0V to 5.5V Powered RS-232 Transceivers from MaximM A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus___________________________________________________Typical Operating CircuitsMAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus___________________________________________________________Pin ConfigurationsM A X 3224E –M A X 3227E /M A X 3244E /M A X 3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus ___________________________________________Ordering Information (continued)___________________Chip InformationMAX3224E TRANSISTOR COUNT: 1129MAX3225E TRANSISTOR COUNT: 1129MAX3226E TRANSISTOR COUNT: 1129MAX3227E TRANSISTOR COUNT: 1129MAX3244E/MAX3245E TRANSISTOR COUNT: 1335PROCESS: BICMOS*EP = Exposed paddle.MAX3224E–MAX3227E/MAX3244E/MAX3245E †±15kV ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V ,RS-232 Transceivers with AutoShutdown Plus______________________________________________________________________________________21Package 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 .)。
MAX6663AEE资料
General DescriptionThe MAX6653/MAX6663/MAX6664 are ACPI-compliant local and remote-junction temperature sensors and fan controllers. These devices measure their own die tem-perature, as well as the temperature of a remote-PN junction and control the speed of a DC cooling fan based on the measured temperature. Remote tempera-ture measurement accuracy is ±1°C from +60°C to +100°C. Temperature measurement resolution is 0.125°C for both local and remote temperatures.Internal watchdog set points are provided for both local and remote temperatures. There are two comparison set points for local temperatures and two for remote temperatures. When a set point is crossed, the MAX6653/MAX6663/MAX6664 assert either the INT or THERM outputs. These outputs can be used as inter-rupts, clock throttle signals, or overtemperature shut-down signals. Two pins on the MAX6653 control the power-up values of the comparison set points, provid-ing fail-safe protection even when the system is unable to program the trip temperatures. The MAX6653 has two additional shutdown outputs, SDR and SDL , that are triggered when the remote or local temperatures exceed the programmed shutdown set points. The INT output for the MAX6653/MAX6663 and THERM outputs for the MAX6653/MAX6663/MAX6664 can also function as inputs if either is pulled low to force the fan to full speed, unless this function is masked by the user.The MAX6653/MAX6663/MAX6664 are available in 16-pin QSOP packages and operate over the -40°C to +125°C temperature range.ApplicationsPersonal Computers Servers Workstations Telecom Equipment Networking Equipment Test Equipment Industrial ControlsFeatureso Remote-Junction Temperature Sensor Within ±1°C Accuracy (+60°C to +100°C)o ACPI-Compatible Programmable Temperature Alarms o 0.125°C Resolution Local and Remote-Junction Temperature Measurement o Programmable Temperature Offset for System Calibration o SMBus 2-Wire Serial Interface with Timeout o Automatic or Manual Fan-Speed Control o PWM Fan Control Outputo Fan-Speed Monitoring and Watchdog o Fan Fault and Failure Indicators o Compatible with 2-Wire or 3-Wire Fans (Tachometer Output)o +3V to +5.5V Supply Rangeo Additional Shutdown Set Point (MAX6653)o Controlled PWM Rise/Fall TimesMAX6653/MAX6663/MAX6664Temperature Monitors andPWM Fan Controllers________________________________________________________________Maxim Integrated Products1Pin Configurations19-2865; Rev 1; 12/03For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Ordering InformationTypical Operating Circuits appear at end of data sheet.Functional Diagram appears at end of data sheet.M A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan Controllers 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.All Voltages Are Referenced to GNDTACH/AIN..............................................................-0.3V to +5.5V V CC ...........................................................................-0.3V to +6V DXP, ADD, CRIT0, CRIT1........................-0.3V to + (V CC + 0.3V)DXN.......................................................................-0.3V to +0.8V SMBDATA, SMBCLK, INT , THERM ,FAN_FAULT , SDL , SDR ............................................-0.3V to +6V SMBDATA, INT , THERM , FAN_FAULT ,PWM_OUT Current..............................................-1mA to +50mADXN Current .......................................................................±1mA ESD Protection (all pins, Human Body Model)..................2000V Continuous Power Dissipation (T A = +70°C)16-Pin QSOP (derate 8.3 mW/°C above +70°C)..........667mW Operating Temperature Range .........................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +165°C Lead Temperature (soldering, 10s).................................+300°CELECTRICAL CHARACTERISTICSMAX6653/MAX6663/MAX6664Temperature Monitors andPWM Fan Controllers_______________________________________________________________________________________3Note 2:Not production tested, guaranteed by design.ELECTRICAL CHARACTERISTICS (continued)M A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan Controllers 4_______________________________________________________________________________________Typical Operating Characteristics(T A = +25°C, unless otherwise noted.)REMOTE TEMPERATURE ERROR vs. REMOTE-DIODE TEMPERATUREREMOTE-DIODE TEMPERATURE (°C)T E M P E R A T U R E E R R O R (°C )110956580-105203550-25-40125-1.5-1.0-0.500.51.01.52.0-2.0LOCAL TEMPERATURE ERROR vs. DIE TEMPERATUREM A X 6653 t o c 04DIE TEMPERATURE (°C)L O C A L T E M P E R A T U R E E R R O R (°C )110956580-105203550-25-40125-1.5-1.0-0.500.51.01.52.0-2.01000.0010.010.1110100REMOTE TEMPERATURE ERROR vs. POWER-SUPPLY NOISE FREQUENCY2POWER-SUPPLY NOISE FREQUENCY (MHz)R E M O T E T E M P E R A T U R E E R R O R (°C )468135797-20.0010.010.1110100LOCAL TEMPERATURE ERROR vs. POWER-SUPPLY NOISE FREQUENCY-10POWER-SUPPLY NOISE FREQUENCY (MHz)R E M O T E T E M P E R A T U R E E R R O R (°C )215643TEMPERATURE ERRORvs. COMMON-MODE NOISE FREQUENCYCOMMON-MODE NOISE FREQUENCY (MHz)0.00010.11100.0010.01100T E M P E R A T U R E E R R O R (°C )12-22461088765432100.011100.1100TEMPERATURE ERRORvs. DIFFERENTIAL-MODE NOISE FREQUENCYDIFFERENTIAL-MODE NOISE FREQUENCY (MHz)T E M P E R A T U R E E R R O R (°C )TEMPERATURE ERROR vs. DXP-DXN CAPACITANCEDXP-DXN CAPACITANCE (nF)T E M P E R A T U R E E R R O R (°C )1-5-4-3-2-101101002.03.02.54.03.54.55.03.05.5STANDBY SUPPLY CURRENT vs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)S T A N D B Y S U P P L Y C U R R E N T (µA )4.03.54.55.0AVERAGE OPERATING SUPPLY CURRENTvs. CONVERSION RATECONVERSION RATE (Hz)S U P P L Y C U R R E N T (µA )32150100150200250300350400450500004MAX6653/MAX6663/MAX6664Temperature Monitors and PWM Fan Controllers Array_______________________________________________________________________________________5M A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan Controllers 6Detailed DescriptionThe MAX6653/MAX6663/MAX6664 are local/remote temperature monitors and fan controllers for micro-processor-based systems. These devices communi-cate with the system through a serial SMBus interface.The serial bus controller features a hard-wired address pin for device selection, an input line for a serial clock,and a serial line for reading and writing addresses and data (see Functional Diagram ).The MAX6653/MAX6663/MAX6664 fan control section can operate in three modes. In the automatic fan-control mode, the fan ’s power-supply voltage is automatically adjusted based on temperature. The control algorithm parameters are programmable to allow optimization to the characteristics of the fan and the system. RPM select mode forces the fan speed to a programmed tachome-ter value. PWM duty cycle select mode allows user selection of the PWM duty cycle. PWM rise and fall times are limited to maximize fan reliability.To ensure overall system reliability, the MAX6653/MAX6663/MAX6664 feature an SMBus timeout so that the MAX6653/MAX6663/MAX6664 can never “lock ” the SMBus. F urthermore, the availability of hard-wired default values for critical temperature set points ensures the MAX6653 controls critical temperature events properly even if the SMBus is “locked ” by some other device on the bus.SMBus Digital InterfaceF rom a software perspective, the MAX6653/MAX6663/MAX6664 appear as a set of byte-wide registers. These devices use a standard SMBus 2-wire/I 2C-compatible serial interface to access the internal registers. The MAX6653/MAX6663/MAX6664 slave address can be set to three different values by the input pin ADD(Table 2) and, therefore, a maximum of three MAX6653/MAX6663/MAX6664 devices can share the same bus.The MAX6653/MAX6663/MAX6664 employ four stan-dard SMBus protocols: Write Byte, Read Byte, Send Byte, and Receive Byte (Figures 1, 2, and 3). The short-er Receive Byte protocol allows quicker transfers, pro-vided that the correct data register was previously selected by a Read Byte instruction. Use caution with the shorter protocols in multimaster systems, since a second master could overwrite the command byte with-out informing the first master.Alert Response AddressThe MAX6653/MAX6663/MAX6664 respond to the SMBus alert response address, an event which typical-ly occurs after an SMBus host master detects an INT interrupt signal going active (referred to as ALERT in SMBus nomenclature). When the host master puts the alert response address (0001 1001) on the bus, all devices with an active INT output respond by putting their own address onto the bus. The alert response can activate several different slave devices simultaneously,similar to the I 2C general call. If more than one slave attempts to respond, bus arbitration rules apply, and the device with the lowest address code wins. The master then services the devices from the lowest address up.MAX6653/MAX6663/MAX6664Temperature Monitors and PWM Fan ControllersFigure 1. SMBus ProtocolsFigure 2. SMBus Write Timing Diagram_______________________________________________________________________________________7The MAX6663 resets its INT output and some of the status bits in the status register after responding to an alert response address; however, if the error condition that caused the interrupt is still present, INT is reassert-ed on the next monitoring cycle. INT is maskable to allow full control of ALERT conditions.Temperature MeasurementThe MAX6653/MAX6663/MAX6664 contain on-chip tem-perature sensors to sense their own die (local) tempera-tures. These devices can also measure remote temperatures such as the die temperature of CPUs or other ICs having on-chip temperature-sensing diodes, or discrete diode-connected transistors as shown in the Typical O perating Circuits . F or best accuracy, the dis-crete diode-connected transistor should be a small-signal device with its collector and base connected together.The on-chip ADC converts the sensed temperature and outputs the temperature data in the format shown in Tables 3 and 4. The temperature measurement resolution is 0.125°C for both local and remote temperatures. The temperature accuracy is within ±1°C for remote tempera-ture measurements from +60°C to +100°C.The Local Temperature Offset (0Dh) and Remote Temperature Offset (0Eh) registers allow the measured temperature to be increased or decreased by a fixed value to compensate for errors due to variations in diode resistance and ideality factor (see the Remote Diode Considerations section). The reported temperature is the measured temperature plus the correction value. Both the measured temperature and the reported value are limited by the sensor ’s temperature range. F or example, if a remote thermal diode is being measured and its tempera-ture is 135°C, the measured temperature is the maximumvalue of 127.875°C. If the remote offset value is set to -10°C, the reported value is 117.875°C, not 125°C.The temperature conversion rate is programmable using bits [4:2] of the fan filter register (23h) as shown in Table 5.The DXN input is biased at 0.65V above ground by an internal diode to set up the analog-to-digital inputs for a differential measurement. The worst-case DXP-DXN dif-ferential input voltage range is from 0.25V to 0.95V.Excess resistance in series with the remote diode caus-es about 0.5°C error per ohm. Likewise, a 200µV offset voltage forced on DXP-DXN causes about 1°C error.High-frequency EMI is best filtered at DXP and DXN with an external 2200pF capacitor. This value can be increased to about 3300pF, including cable capacitance.Capacitance higher than 3300pF introduces errors due to the rise time of the switched current source.M A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan Controllers 8Temperature Comparisonand Interrupt System At the end of each conversion cycle, the converted temperature data are compared to various set-point thresholds to control the INT, THERM, SDL, and SDR outputs. All temperature threshold limits are stored in the threshold limit registers (Table 6) and can be changed through the SMBus digital interface.THERM is an active-low thermal-overload output indicat-ing that the THERM overtemperature set point is exceed-ed. With the THERM threshold set to an appropriate value, the THERM output can be used to control clock throttling. When this pin is pulled low by an external signal, a status bit (bit 7, status register 2) is set, and the fan speed is unconditionally forced to full-on speed. The only way to reset the status bit is to read status register 2. Connect a 10kΩpullup resistor between THERM and V CC.MAX6653/MAX6663/MAX6664Temperature Monitors and PWM Fan Controllers _______________________________________________________________________________________9M A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan ControllersINT is an open-drain digital output that reports the sta-tus of temperature interrupt limits and fan out-of-limit conditions. Set bit 1 of configuration register 1 (00h) to 1 to enable INT output or reset this bit to zero to disable the INT output function. Status register 1 contains sta-tus information for the conditions that cause INT to assert. Reading status register 1 resets INT , but INT is reasserted if the fault condition still exists. Connect a 10k Ωpullup resistor between INT and V CC .SDL and SDR are open-drain digital outputs on the MAX6653 that can be used to shut the system down based on the local (die) temperature of the MAX6653 or the temperature of the remote sensor, respectively. The trip thresholds for SDL and SDR are normally set above the THERM and INT limits. Their power-up values are set by the CRIT1 and CRIT0 pins, as shown in Table 1.Fan-Speed ControlThe MAX6653/MAX6663/MAX6664 fan-control section can operate in one of three modes depending on the set-ting of bit 7 to bit 5 of configuration register 1 (00h).Regardless of the mode of operation, the PWM output fre-quency is programmable, and the fan speed is measured with the result stored in the fan-speed register (08h).PWM Output FrequencyThe PWM output frequency is programmed by bit 5, bit 4, and bit 3 of the fan characteristics register (20h),regardless of the mode of operation. See Table 7.Fan-Control ModeThe mode of fan-speed control operation is set by bit 7,bit 6, and bit 5 in configuration register 1 (00h), as shown in Table 8.PWM Duty-Cycle Fan-Control ModeBits [3:0] of the fan-speed configuration register set the PWM duty cycle. See Table 9 for more details.RPM Select Fan-Control ModeIn RPM select mode, the MAX6653/MAX6663/MAX6664adjust their PWM output duty cycle to match a selected fan speed measured by a tachometer count value. Before selecting this mode by setting bits [7:5] of configuration register 1 (00h) to 0x1, the desired tachometer count value should be written to the fan tachometer high-limit register (10h). In this mode, the MAX6653/MAX6663/MAX6664 are not able to detect underspeed fan faults because the fan tachometer high-limit register (10h) func-tions as the target tachometer count.The MAX6653/MAX6663/MAX6664 detect fan stall faults by comparing the fan-speed reading to the full-scale constant of 254 (F Eh). Therefore, the MAX6653/MAX6663/MAX6664 signal a fan fault when the fan-speed reading is 255 (FFh). Note that the RPM mode cannot be used for speeds below 10% of the fan ’s maximum speed. It is important to verify that a fan works properly at lower RPM values if a low-RPM oper-ation in this mode is desired.MAX6653/MAX6663/MAX6664Temperature Monitors andPWM Fan Controllers11Automatic Fan-Control ModeAutomatic fan-speed control is selected by setting bits [7:5] of configuration register 1 (00h) to 100 (to control speed based on the remote temperature) or 101 (to control speed based on both remote and local temper-ature). Program a threshold, or starting temperature TMIN, and the desired temperature range, T RANGE , into the local temp T MIN /T RANGE register (24h) for local temperature and into the remote temp T MIN /T RANGE register (25h) for remote temperature (Tables 10 and 11). If the fan control responds to both local and remote temperatures, the higher PWM duty cycle has priority.When the temperature exceeds T MIN , the fan is enabled at a minimum duty cycle programmed in bits [3:0] of the fan-speed configuration register (22h). The duty cycle increases in proportion to the temperature difference and reaches 100% at a temperature equal to (T MIN + T RANGE ). A hysteresis of 5°C is built into the T MIN set point to prevent the fan from starting and stop-ping when the temperature is at the set point.Spin-UpTo ensure proper fan startup, the MAX6653/MAX6663/MAX6664 can be set to drive the fan to 100% duty cycle for a short period on startup, and then revert to the correct duty cycle. The spin-up time is programmed by bits [2:0] in the fan characteristics register (20h).The spin-up feature can be disabled by setting bit 7 of the fan-filter register (23h) to 1; POR value is zero.Table 12 shows programming of the spin-up time.Fan-Filter ModeWhen the MAX6653/MAX6663/MAX6664 are used for automatic fan-speed control, the fan-filter mode helps minimize the audible effects of varying fan speeds. The fan-filter mode limits the rate at which fan speed can change. Each time a new temperature measurement is made, the fan-filter mode allows the PWM duty cycle to increment by a selectable amount. The duty cycle can change by 1/240, 2/240, 4/240, or 8/240 (0.416%,0.833%, 1.667%, or 3.333%) of the PWM period after each temperature-monitoring cycle. This prevents sud-den changes in fan speed, even when temperature changes suddenly.The filter mode is set by bit 0 of the fan-filter register (23h). To enable the fan-filter mode, write a 1 to this bit.Bits [6:5] of the same register control the size of the PWM steps.Note that the rate of change depends on both the value selected by the fan-filter bits and on the temperatureM A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan Controllersmeasurement rate, which is controlled by bits [4:2] of the fan-filter register (23h). Table 5 shows the effect of the temperature measurement rate control bits. As an example, assume that the temperature measurement rate is 2Hz, or 0.5s per monitoring cycle, and the fan-fil-ter rate is 0.416% per monitoring cycle. For the fan drive to change from 50% to 100% requires 50% / 0.416% =120 temperature monitoring cycles. Thus, for a tempera-ture-monitoring cycle of 0.5s, the time required for the drive to change from 50% to 100% is 60s.Fan-Speed MeasurementThe fan speed is measured by using the relatively slow tachometer signal from the fan to gate an 11.25kHzclock frequency into a fan-speed counter. The mea-surement is initialized on the starting edge of a PWM output if fan-speed measurement is enabled by setting bit 2 of configuration register 2 (01h) to 1. Counting begins on the leading edge of the second tachometer pulse and lasts for two tachometer periods or until the counter overranges (255). The measurement repeats unless monitoring is disabled by resetting bit 2 in the configuration register 2 (01h). The measured result is stored in the fan-speed reading register (08h).The fan-speed count is given by:where RPM = fan speed in RPM.N determines the speed range and is programmed by bits [7:6] in the fan characteristics register (20h) as shown in Table 14. When the speed falls below the value in the speed range column, a fan failure is detected.The TACH/AIN input can be either a digital signal (from the fan ’s tachometer output) or an analog signal,depending on the setting of bit 2 of the configuration register 1 (00h). The default setting is zero, which sets up TACH/AIN as a digital input. F or the analog input (Figure 4), the detected voltage threshold is typically at 250mV, which is appropriate for sensing the voltage of a sense resistor connected to the ground lead of a 2-wire fan. The AIN input only responds to pulse widths greater than 10µs.F igure 5 shows a schematic using a current-sensing resistor and a coupling capacitor to derive the tachometer information from the power-supply current of a 2-wire fan. This circuit allows the speed of a 2-wire fan to be measured even though the fan has no tachometer signal output. The sensing resistor, R SENSE, converts the fan commutation pulses into a voltage and this voltage is AC-coupled into the TACH/AIN input through coupling capacitor C1. The value of R SENSE is on the order of 1Ωto 5Ω, depending on the fan, and the value of the coupling capacitor C1 is 0.01µF. When using this method, set bit 2 of configu-ration register 1 to 1.Fan-Fault Detection The FAN_FAULT output is used to indicate fan slow down or failure. POR disables the FAN_FAULT output on the MAX6653/MAX6663. POR enables FAN_FAULT output on the MAX6664. If FAN_FAULT is not enabled, writing a logic 1 to bit 4 of configuration register 1 (00h) enables the FAN_FAULT output pin. Either under-speed or stalled fans are detected as fan faults. FAN_FAULT is asserted low only when five consecutive interrupts are generated by the MAX6653/MAX6663/ MAX6664s’INT due to fan faults. The MAX6653/ MAX6664 apply 100% duty cycle for the duration of the spin-up time once an INT is asserted. The MAX6663 goes to 100% duty cycle for the duration of the spin-up time once INT is asserted and status register 1 is read. Fan-fault detection works by comparing the value of the fan tachometer high-limit register (10h) with the value of the fan-speed reading register (08h), which contains the value of the most recent fan-speed measurement. Note that the value of the fan-speed reading register (08h) must exceed the value of the fan tachometer high limit (10h) by 1 in order to qualify as a fault. The fault gener-ates an interrupt signal by asserting the INT output, but does not cause the FAN_FAULT output to assert until five consecutive failures have been detected. The fan runs at 100% duty cycle when five consecutive failures have been detected, whether FAN_FAULT is enabled or not. As an example of the function of the fan-fault detection, assume a fan is stalled or under speed. The MAX6663 ini-tially indicates the failure by generating an interrupt on the INT pin. The fan fault bit (bit 1) of interrupt status register 1 (02h) is also set to 1. Once the processor has acknowl-edged the INT by reading status register 1, the INT is cleared. PWM_OUT is then brought high for a 2s (fan spin-up default, Table 12) spin-up period to restart the fan. Subsequent fan failures cause INT to be reasserted and PWM_OUT to be brought high (following a status register 1 read) for a spin-up period each time to restart the fan. Once the fifth tachometer failure occurs, the FAN_FAULT is asserted to indicate a critical fan failure.A MAX6653/MAX6664 example is somewhat simpler. Again assume the fan is stalled or under speed. The MAX6653/MAX6664 initially indicate the failure by gener-ating an interrupt on the INT pin. The fan fault bit of the interrupt status register is set to 1. PWM_OUT goes high for the programmed spin-up time (2s default) to restart the fan. Each subsequent fan failure causes another spin-up. Once the fifth tachometer failure occurs, the FAN_FAULT output is asserted (if enabled) and the PWM output is driven to 100%.When the FAN_FAULT output is disabled (register 00h, bit 4), spin-ups are still attempted whenever the tach count is greater than the value in the fan tachometer high-limit register (10h). If fan faults and their associat-ed spin-ups are not desired, the fan tachometer high-limit register (10h) to F F. This prevents the tach count from ever exceeding the limit and faults are not detect-ed. Simply disabling the tachometer input (register 01h, bit 2) leaves the fan fault function enabled and can result in fan faults.Figure 5. Using the MAX6653/MAX6663/MAX6664 with a2-Wire FanMAX6653/MAX6663/MAX6664Temperature Monitors and PWM Fan Controllers______________________________________________________________________________________13M A X 6653/M A X 6663/M A X 6664Temperature Monitors and PWM Fan Controllers 14______________________________________________________________________________________Alarm SpeedF or the MAX6663, the alarm speed bit, bit 0 of status register 1 (02h), indicates that the PWM duty cycle is 100%, excluding the case of fan spin-up. F or the MAX6653/MAX6664, this bit indicates that the THERM output is low. Once this bit is set, the only way to clear it is by reading status register 1. However, the bit does not reassert on the next monitoring cycle if the condi-tion still exists. It does assert if the condition is discon-tinued and then returns.Power-On Default ConditionsAt power-up, the MAX6653/MAX6663/MAX6664 are monitoring temperature to protect the system against thermal damage. The PWM outputs are in known states.Note that although the "Monitoring" bit (Configuration register 1, Bit 0) is enabled, automatic fan speed control does not begin until a 1 is rewritten to Bit 0.Other default conditions as listed in the Register Summary section.After applying power to the MAX6653/MAX6663/MAX6664, set the desired operating characteristics (fan configuration, alarm thresholds, etc.). Write to Configuration register 1 last. When a 1 is first written to Bit 0 of this register, fan control will commence as determined by the register contents.PC Board LayoutF ollow these guidelines to reduce the measurement error of the temperature sensors:1)Place the MAX6653/MAX6663/MAX6664 as closeas is practical to the remote diode. In noisy environ-ments, such as a computer motherboard, this dis-tance can be 4in to 8in (typ). This length can be increased if the worst noise sources are avoided.Noise sources include CRTs, clock generators,memory buses, and ISA/PCI buses.2)Do not route the DXP-DXN lines next to the deflec-tion coils of a CRT. Also, do not route the traces across fast digital signals, which can easily intro-duce 30°C error, even with good filtering.3)Route the DXP and DXN traces in parallel and inclose proximity to each other, away from any higher voltage traces, such as 12VDC. Leakage currents from PC board contamination must be dealt with carefully since a 20M Ωleakage path from DXP to ground causes about 1°C error. If high-voltage traces are unavoidable, connect guard traces to GND on either side of the DXP-DXN traces (Figure 6).4)The 10-mil widths and spacing recommended inFigure 6are not absolutely necessary, as they offer only a minor improvement in leakage and noise over narrow traces. Use wider traces when practical.5)Add a 200Ωresistor in series with VCC for bestnoise filtering (see Typical Operating Circuits).Figure 6. Recommended DXP/DXN PC Traces。
MEMORY存储芯片MAX485EESA中文规格书
General Description The MAX481E, MAX483E, MAX485E, MAX487E–MAX491E, and MAX1487E are low-power transceivers for RS-485 and RS-422 communications in harsh environ-ments. Each driver output and receiver input is protected against ±15kV electro-static discharge (ESD) shocks, without latchup. These parts contain one driver and one receiver. The MAX483E, MAX487E, MAX488E, and MAX489E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly termi-nated cables, thus allowing error-free data transmission up to 250kbps. The driver slew rates of the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E are not limited, allowing them to transmit up to 2.5Mbps.These transceivers draw as little as 120µA supply cur-rent when unloaded or when fully loaded with disabled drivers (see Selector Guide). Additionally, the MAX481E, MAX483E, and MAX487E have a low-current shutdown mode in which they consume only 0.5µA. All parts oper-ate from a single +5V supply.Drivers are short-circuit current limited, and are protected against excessive power dissipation by thermal shutdown circuitry that places their outputs into a high-impedance state. The receiver input has a fail-safe feature that guar-antees a logic-high output if the input is open circuit.The MAX487E and MAX1487E feature quarter-unit-load receiver input impedance, allowing up to 128 trans-ceivers on the bus. The MAX488E–MAX491E are designed for full-duplex communications, while the MAX481E, MAX483E, MAX485E, MAX487E, and MAX1487E are designed for half-duplex applications. For applications that are not ESD sensitive see the pin-and function-compatible MAX481, MAX483, MAX485, MAX487–MAX491, and MAX1487.Applications Low-Power RS-485 TransceiversLow-Power RS-422 TransceiversLevel TranslatorsTransceivers for EMI-Sensitive ApplicationsIndustrial-Control Local Area NetworksNext-Generation Device Features ♦For Fault-Tolerant Applications:MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4-Unit Load, +3.3V, RS-485 TransceiverMAX3080–MAX3089: Fail-Safe, High-Speed(10Mbps), Slew-Rate-Limited, RS-485/RS-422Transceivers♦For Space-Constrained Applications:MAX3460–MAX3464: +5V, Fail-Safe, 20Mbps,Profibus, RS-485/RS-422 TransceiversMAX3362: +3.3V, High-Speed, RS-485/RS-422Transceiver in a SOT23 PackageMAX3280E–MAX3284E: ±15kV ESD-Protected,52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422True Fail-Safe ReceiversMAX3030E–MAX3033E: ±15kV ESD-Protected,+3.3V, Quad RS-422 Transmitters♦For Multiple Transceiver Applications:MAX3293/MAX3294/MAX3295: 20Mbps, +3.3V,SOT23, RS-485/RS-422 Transmitters♦For Fail-Safe Applications:MAX3440E–MAX3444E: ±15kV ESD-Protected,±60V Fault-Protected, 10Mbps, Fail-SafeRS-485/J1708 Transceivers♦For Low-Voltage Applications:MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E: +3.3V Powered, ±15kVESD-Protected, 12Mbps, Slew-Rate-Limited,True RS-485/RS-422 Transceivers±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 TransceiversOrdering InformationOrdering Information continued at end of data sheet.Selector Guide appears at end of data sheet.±15kV ESD-Protected, Slew-Rate-Limited,Low-Power, RS-485/RS-422 Transceivers__________Function Tables (MAX481E/MAX483E/MAX485E/MAX487E/MAX1487E)Table 1. TransmittingTable 2. Receivingneers 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 MAX481E, MAX483E, MAX485E, MAX487E–MAX491E, and MAX1487E keep working without latchup.ESD protection can be tested in various ways; the transmitter outputs and receiver inputs of this product family are characterized for protection to ±15kV using the Human Body Model.Other ESD test methodologies include IEC10004-2 con-tact discharge and IEC1000-4-2 air-gap discharge (for-merly IEC801-2).ESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test set-up, test methodology, and test results.Human Body ModelF igure 4 shows the Human Body Model, and F igure 5shows 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 test device through a 1.5k Ωresistor.IEC1000-4-2The IEC1000-4-2 standard covers ESD testing and per-formance of finished equipment; it does not specifically refer to integrated circuits (Figure 6).MAX481E/MAX483E/MAX485E/ MAX487E–MAX491E/MAX1487E__________Applications InformationThe MAX481E/MAX483E/MAX485E/MAX487E–MAX491E and MAX1487E are low-power transceivers for RS-485 and RS-422 communications. These “E” versions of the MAX481, MAX483, MAX485, MAX487–MAX491, and MAX1487 provide extra protection against ESD. The rugged MAX481E, MAX483E, MAX485E, MAX497E–MAX491E, and MAX1487E are intended for harsh envi-ronments where high-speed communication is important. These devices eliminate the need for transient suppres-sor diodes and the associated high capacitance loading.The standard (non-“E”) MAX481, MAX483, MAX485, MAX487–MAX491, and MAX1487 are recommended for applications where cost is critical.The MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E can transmit and receive at data rates up to 2.5Mbps, while the MAX483E, MAX487E, MAX488E, and MAX489E are specified for data rates up to 250kbps. The MAX488E–MAX491E are full-duplex transceivers, while the MAX481E, MAX483E, MAX487E, and MAX1487E are half-duplex. In addition, driver-enable (DE) and receiver-enable (RE) pins are included on the MAX481E, MAX483E, MAX485E, MAX487E, MAX489E, MAX491E, and MAX1487E. When disabled, the driver and receiver outputs are high impedance.±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 have extra protection against static electricity. Maxim’s engi-±15kV ESD-Protected, Slew-Rate-Limited,Low-Power, RS-485/RS-422 TransceiversFigure 6. IEC1000-4-2 ESD Test ModelFigure 8. Driver DC Test LoadFigure 7. IEC1000-4-2 ESD Generator Current WaveformFigure 9. Receiver Timing Test LoadFigure 4. Human Body ESD Test ModelFigure 5. Human Body Model Current WaveformMAX481E/MAX483E/MAX485E/ MAX487E–MAX491E/MAX1487E±15kV ESD-Protected, Slew-Rate-Limited,Low-Power, RS-485/RS-422 Transceiversdelay times. Typical propagation delays are shown in Figures 19–22 using Figure 18’s test circuit.The difference in receiver delay times, t PLH - t PHL , is typically under 13ns for the MAX481E, MAX485E,MAX490E, MAX491E, and MAX1487E, and is typically less than 100ns for the MAX483E and MAX487E–MAX489E.The driver skew times are typically 5ns (10ns max) for the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E, and are typically 100ns (800ns max) for the MAX483E and MAX487E–MAX489E.Typical ApplicationsThe MAX481E, MAX483E, MAX485E, MAX487E–MAX491E, and MAX1487E transceivers are designed for bidirectional data communications on multipoint bus transmission lines. F igures 25 and 26 show typical net-work application circuits. These parts can also be used as line repeaters, with cable lengths longer than 4000 feet.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 possi-ble. The slew-rate-limited MAX483E and MAX487E–MAX489E are more tolerant of imperfect termination.Bypass the V CC pin with 0.1µF.Isolated RS-485For isolated RS-485 applications, see the MAX253 and MAX1480 data sheets.Line Length vs. Data RateThe RS-485/RS-422 standard covers line lengths up to 4000 feet. Figures 23 and 24 show the system differen-tial voltage for the parts driving 4000 feet of 26AWG twisted-pair wire at 110kHz into 100Ωloads.Figure 18. Receiver Propagation Delay Test CircuitIt takes the drivers and receivers longer to become enabled from the low-power shutdown state (t ZH(SHDN ), t ZL(SHDN)) than from the operating mode (t ZH , t ZL ). (The parts are in operating mode if the RE, DE inputs equal a logical 0,1 or 1,1 or 0, 0.)Driver 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-imped-ance state if the die temperature rises excessively.Propagation DelayMany digital encoding schemes depend on the differ-。
MAX4313EUA+中文资料
Selector Guide
PART
MAX4310 MAX4311 MAX4312 MAX4313 MAX4314 MAX4315
NO. OF INPUT CHANNELS
________________________Applications
Video Signal Multiplexing Video Crosspoint Switching Flash ADC Input Buffers 75Ω Video Cable Drivers High-Speed Signal Processing
730mV of the Rails o Input Common-Mode Range Includes
Negative Rail o Low-Power Shutdown Mode o Available in Space-Saving 8-Pin µMAX® and
16-Pin QSOP Packages
TEMP RANGE -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C -40ºC to +85°C
2 4 8 2 4 8
AMPLIFIER GAIN (V/V)
Moxa MGate 5123 产品介绍说明书
MGate5123Series1-port CANopen/J1939-to-PROFINET gatewaysFeatures and Benefits•Simultaneous protocol conversions from CANopen and J1939to PROFINETand SNMP•Supports PROFINET I/O device and SNMP agent•Supports CANopen master and J1939•Flexible deployment with Ethernet cascading and dual subnet•Embedded traffic monitoring/diagnostic information for easy troubleshooting•Easy device configuration via a web-based console•microSD card for configuration backup/duplication•Supports dual redundant DC power inputs and1relay output•CAN port with2-kV isolation protection•-40to75°C wide operating temperature models available•Developed according to IEC62443-4-2with Secure BootCertificationsIntroductionThe MGate5123is an industrial Ethernet gateway for converting CANopen or J1939to PROFINET network communications.To integrate existing CANopen or J1939devices onto a PROFINET network,use the MGate5123as a CANopen or J1939master to collect data and exchange data with the PROFINET IO controller.All models are protected by a rugged and compact metal housing and are DIN-rail mountable.The rugged design is suitable for industrial applications such as factory automation and other process automation industries.Easy ConfigurationThe MGate5123gateways are provided with a web console to make configuration easy without having to install an extra utility.In addition,HTTPS encryption of communication ensures higher network security.In most data-acquisition applications,configuration of CANopen devices can be time-consuming and increase costs.The MGate5123gateways provide EDS file import function and user can auto scan the CANopen devices to help complete the settings quickly.The MGate gateways provide software-configurable termination resistor settings for CANbus to reduce efforts by eliminating the need to open the chassis.Easy TroubleshootingThe MGate5123gateways provide a variety of maintenance functions to reduce troubleshooting time and cost,including LED indicators,protocol diagnostics,traffic monitor,and tag view.These tools help you capture and check data to easily identify the root cause of issues,especially during the installation stage.The MGate gateways also come with status monitoring and fault protection functions.The status monitoring function notifies a PLC/DCS/SCADA system when a CAN device gets disconnected or does not respond,in which case the process PLC/DCS gets the status of each end device and then issues alarms to notify operators.The fault protection function executes actions pre-defined by the user when a host gets disconnected to prevent the end devices from going offline for long periods of time.SpecificationsEthernet Interface10/100BaseT(X)Ports(RJ45connector)2Auto MDI/MDI-X connectionMagnetic Isolation Protection 1.5kV(built-in)Ethernet Software FeaturesIndustrial Protocols PROFINET IO DeviceConfiguration Options Web Console(HTTPS)Device Search Utility(DSU)Management ARPDHCP ClientDNSHTTPHTTPSSMTPSNMP TrapSNMPv1/v2c/v3TCP/IPUDPMIB RFC1213Time Management NTP ClientSecurity FunctionsAuthentication Local databaseEncryption HTTPSAES-128AES-256SHA-256Security Protocols SNMPv3SNMPv2c TrapHTTPS(TLS1.3)CAN InterfaceNo.of Ports1Connector Spring-type Euroblock terminalStandards ISO11898-2Baudrate CANopen:10kbps,20kbps,50kbps,125kbps,250kbps,500kbps,800kbps,1MbpsJ1939:250kbps,500kbps,1MbpsTerminator120ohmssoftware configurableSignals CAN_H,CAN_L,GND,Ext_CAN_H,Ext_CAN_L,CAN_ShieldCAN Software FeaturesIndustrial Protocols CANopen master,J1939CANopenMode MasterMax No.of Nodes64Max No.of Receive PDOs256Max No.of Transmit PDOs256SDOs SupportedInput Data Size2048bytesOutput Data Size2048bytesJ1939Max.No.of Commands256Input Data Size2048bytesOutput Data Size2048bytesPROFINETMode IO Device class BMax.No.of Master Connections2IO controllers(shared devices)Input Data Size1440bytes(bytes per IO Controller,total:2880bytes)Output Data Size1440bytes(bytes per IO Controller,total:2880bytes)MemorymicroSD Slot Up to32GB(SD2.0compatible)Power ParametersInput Voltage12to48VDCInput Current455mA(max)Power Connector Spring-type Euroblock terminalRelaysContact Current Rating Resistive load:2A@30VDCPhysical CharacteristicsHousing MetalIP Rating IP30Dimensions25x90x129.6mm(0.98x3.54x5.1in)Weight294g(0.65lb)Environmental LimitsOperating Temperature MGate5123:-10to60°C(14to140°F)MGate5123-T:-40to75°C(-40to167°F)Storage Temperature(package included)-40to85°C(-40to185°F)Ambient Relative Humidity5to95%(non-condensing)Standards and CertificationsSafety EN61010-2-201UL61010-2-201EMC EN61000-6-2/-6-4EMI FCC Part15B Class AEMS IEC61000-4-2ESD:Contact:8kV;Air:15kVIEC61000-4-3RS:80MHz to1GHz:10V/mIEC61000-4-4EFT:Power:4kV;Signal:2kVIEC61000-4-5Surge:Power:2kV;Signal:2kVIEC61000-4-6CS:150kHz to80MHz:10V/m;Signal:10V/mIEC61000-4-8PFMFFreefall IEC60068-2-31Shock IEC60068-2-27Vibration IEC60068-2-6IEC60068-2-64MTBFTime1,408,984hrs hrsStandards Telcordia SR332WarrantyWarranty Period5yearsDetails See /warrantyPackage ContentsDevice1x MGate5123Series gatewayDocumentation1x quick installation guide1x warranty cardDimensionsOrdering InformationModel Name No.of Serial Ports Operating Temperature MGate51231-10to60°C MGate5123-T1-40to75°C Accessories(sold separately)Wall-Mounting KitsWK-25Wall-mounting kit,2plates,4screws,25x43x2mm©Moxa Inc.All rights reserved.Updated Jun28,2023.This document and any portion thereof may not be reproduced or used in any manner whatsoever without the express written permission of Moxa Inc.Product specifications subject to change without notice.Visit our website for the most up-to-date product information.。
MAX333AEWP中文资料
________________________________________________________________ Maxim Integrated Products
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Precision, Quad, SPDT, CMOS Analog Switch MAX333A
ABSOLUTE MAXIMUM RATINGS
V+ to V- ..................................................................................44V VIN, VCOM, VNO, VNC ......................................................V- to V+ (VNO - VNC) ............................................................................32V V+ to Ground..........................................................................30V V- to Ground..........................................................................-30V Current, Any Terminal Except VCOM, VNO, or VNC .............30mA Continuous Current, VCOM, VNO, or VNC ............................20mA Peak Current, VCOM, VNO, or VNC (Pulsed at 1ms, 10% duty cycle max) ............................70mA ESD ....................................................................................2000V Note 1: Device mounted with all leads soldered to PC board. Continuous Power Dissipation (TA = +70°C) (Note 1) Plastic DIP (derate above +70°C by 11.11mW/°C) .....889mW SO (derate above +70°C by 10.00mW/°C) ..................800mW CERDIP (derate above +70°C by 11.11mW/°C) ..........889mW TSSOP (derate above +70°C by 7mW/°C) ..................559mW Operating Temperature Ranges: MAX333AC_ _ .....................................................0°C to +70°C MAX333AE_ _ ..................................................-40°C to +85°C MAX333AMJP ................................................-55°C to +125°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10sec) .............................+300°C
MAX630CSA+中文资料
General DescriptionMaxim’s MAX630 and MAX4193 CMOS DC-DC regula-tors are designed for simple, efficient, minimum-size DC-DC converter circuits in the 5mW to 5W range. The MAX630 and MAX4193 provide all control and power handling functions in a compact 8-pin package: a 1.31V bandgap reference, an oscillator, a voltage com-parator, and a 375mA N-channel output MOSF ET. A comparator is also provided for low-battery detection.Operating current is only 70µA and is nearly indepen-dent of output switch current or duty cycle. A logic-level input shuts down the regulator to less than 1µA quies-cent current. Low-current operation ensures high effi-ciency even in low-power battery-operated systems.The MAX630 and MAX4193 are compatible with most battery voltages, operating from 2.0V to 16.5V.The devices are pin compatible with the Raytheon bipo-lar circuits, RC4191/2/3, while providing significantly improved efficiency and low-voltage operation. Maxim also manufactures the MAX631, MAX632, and MAX633DC-DC converters, which reduce the external compo-nent count in fixed-output 5V, 12V, and 15V circuits.See Table 2 at the end of this data sheet for a summary of other Maxim DC-DC converters.Applications+5V to +15V DC-DC ConvertersHigh-Efficiency Battery-Powered DC-DC Converters+3V to +5V DC-DC Converters 9V Battery Life ExtensionUninterruptible 5V Power Supplies5mW to 5W Switch-Mode Power SuppliesFeatures♦High Efficiency—85% (typ)♦70µA Typical Operating Current ♦1µA Maximum Quiescent Current ♦2.0V to 16.5V Operation♦525mA (Peak) Onboard Drive Capability ♦±1.5% Output Voltage Accuracy (MAX630)♦Low-Battery Detector♦Compact 8-Pin Mini-DIP and SO Packages ♦Pin Compatible with RC4191/2/3MAX630/MAX4193CMOS Micropower Step-UpSwitching Regulator________________________________________________________________Maxim Integrated Products 1Pin ConfigurationOrdering InformationTypical Operating Circuit19-0915; Rev 2; 9/08For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .*Dice are specified at T A = +25°C. Contact factory for dice specifications.**Contact factory for availability and processing to MIL-STD-883.†Contact factory for availibility.M A X 630/M A X 4193CMOS Micropower Step-Up Switching Regulator 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.Supply Voltage.......................................................................18V Storage Temperature Range ............................-65°C to +160°C Lead Temperature (soldering, 10s).................................+300°C Operating Temperature RangeMAX630C, MAX4193C........................................0°C to +70°C MAX630E, MAX4193E.....................................-40°C to +85°C MAX630M, MAX4193M..................................-55°C to +125°CPower Dissipation8-Pin PDIP (derate 6.25mW/°C above +50°C).............468mW 8-Pin SO (derate 5.88mW/°C above +50°C)................441mW 8-Pin CERDIP (derate 8.33mW/°C above +50°C)........833mW Input Voltage (Pins 1, 2, 6, 7).....................-0.3V to (+V S + 0.3V)Output Voltage, L X and LBD..................................................18V L X Output Current..................................................525mA (Peak)LBD Output Current............................................................50mAMAX630/MAX4193CMOS Micropower Step-UpSwitching Regulator_______________________________________________________________________________________3L X ON-RESISTANCE vs.TEMPERATURETEMPERATURE (°C)L X R O N (Ω)100755025-25-5024680125SUPPLY CURRENT vs.TEMPERATUREM A X 630/4193 t o c 02TEMPERATURE (°C)I S (μA )100755025-25-50402080601201001400125SUPPLY CURRENT vs.SUPPLY VOLTAGEM A X 630/4193 t o c 03+V S (V)I S (μA )14121086425015010025020030016Typical Operating Characteristics(T A = +25°C, unless otherwise noted.)ELECTRICAL CHARACTERISTICSNote 1:Guaranteed by correlation with DC pulse measurements.Note 2:The operating frequency range is guaranteed by design and verified with sample testing.Detailed DescriptionThe operation of the MAX630 can best be understood by examining the voltage regulating loop of F igure 1.R1 and R2 divide the output voltage, which is com-pared with the 1.3V internal reference by comparator COMP1. When the output voltage is lower than desired,the comparator output goes high and the oscillator out-put pulses are passed through the NOR gate latch,turning on the output N-channel MOSFET at pin 3, L X .As long as the output voltage is less than the desired voltage, pin 3 drives the inductor with a series of pulses at the oscillator frequency.Each time the output N-channel MOSFET is turned on,the current through the external coil, L1, increases,storing energy in the coil. Each time the output turns off,the voltage across the coil reverses sign and the volt-age at L X rises until the catch diode, D1, is forward biased, delivering power to the output.When the output voltage reaches the desired level,1.31V x (1 + R1 / R2), the comparator output goes low and the inductor is no longer pulsed. Current is then supplied by the filter capacitor, C1, until the output volt-age drops below the threshold, and once again L X is switched on, repeating the cycle. The average duty cycle at L X is directly proportional to the output current.Output Driver (L X Pin)The MAX630/MAX4193 output device is a large N-channel MOSFET with an on-resistance of 4Ωand a peak current rating of 525mA. One well-known advan-tage that MOSF ETs have over bipolar transistors in switching applications is higher speed, which reduces switching losses and allows the use of smaller, lighter,less costly magnetic components. Also important is that MOSF ETs, unlike bipolar transistors, do not require base current that, in low-power DC-DC converters,often accounts for a major portion of input power.The operating current of the MAX630 and MAX4193increases by approximately 1µA/kHz at maximum power output due to the charging current required by the gate capacitance of the L X output driver (e.g., 40µA increase at a 40kHz operating frequency). In compari-son, equivalent bipolar circuits typically drive their NPN L X output device with 2mA of base drive, causing the bipolar circuit’s operating current to increase by a fac-tor of 10 between no load and full load.OscillatorThe oscillator frequency is set by a single external, low-cost ceramic capacitor connected to pin 2, C X . 47pF sets the oscillator to 40kHz, a reasonable compromise between lower switching losses at low frequencies and reduced inductor size at higher frequencies.M A X 630/M A X 4193CMOS Micropower Step-Up Switching Regulator 4_______________________________________________________________________________________Low-Battery DetectorThe low-battery detector compares the voltage on LBR with the internal 1.31V reference. The output, LBD, is an open-drain N-channel MOSFET. In addition to detecting and warning of a low battery voltage, the comparator can also perform other voltage-monitoring operations such as power-failure detection.Another use of the low-battery detector is to lower the oscillator frequency when the input voltage goes below a specified level. Lowering the oscillator frequency increases the available output power, compensating for the decrease in available power caused by reduced input voltage (see Figure 5).Logic-Level Shutdown InputThe shutdown mode is entered whenever I C (pin 6) is driven below 0.2V or left floating. When shut down, theMAX630’s analog circuitry, oscillator, L X , and LBD out-puts are turned off. The device’s quiescent current dur-ing shutdown is typically 10nA (1µA max).Bootstrapped OperationIn most circuits, the preferred source of +V S voltage for the MAX630 and MAX4193 is the boosted output volt-age. This is often referred to as a “bootstrapped” oper-ation since the circuit figuratively “lifts” itself up.The on-resistance of the N-channel L X output decreas-es with an increase in +V S ; however, the device operat-ing current goes up with +V S (see the Typical Operating Characteristics , I S vs. +V S graph). In circuits with very low output current and input voltages greater than 3V, it may be more efficient to connect +V S direct-ly to the input voltage rather than bootstrap.MAX630/MAX4193CMOS Micropower Step-UpSwitching Regulator_______________________________________________________________________________________5Figure 1. +5V to +15V Converter and Block DiagramM A X 630/M A X 4193External ComponentsResistorsSince the LBR and V FB input bias currents are specified as 10nA (max), the current in the dividers R1/R2 and R3/R4 (Figure 1) may be as low as 1µA without signifi-cantly affecting accuracy. Normally R2 and R4 are between 10k Ωand 1M Ω, which sets the current in the voltage-dividers in the 1.3µA to 130µA range. R1 and R3 can then be calculated as follows:where V OUT is the desired output voltage and V LB isthe desired low-battery warning threshold.If the I C (shutdown) input is pulled up through a resistor rather than connected directly to +V S , the current through the pullup resistor should be a minimum of 4µAInductor ValueThe available output current from a DC-DC voltageboost converter is a function of the input voltage, exter-nal inductor value, output voltage, and the operating frequency.The inductor must 1) have the correct inductance, 2) be able to handle the required peak currents, and 3) have acceptable series resistance and core losses. If the inductance is too high, the MAX630 will not be able to deliver the desired output power, even with the L X out-put on for every oscillator cycle. The available output power can be increased by either decreasing the inductance or the frequency. Reducing the frequency increases the on-period of the L X output, thereby increasing the peak inductor current. The available out-put power is increased since it is proportional to the square of the peak inductor current (I PK ).where P OUT includes the power dissipated in the catchdiode (D1) as well as that in the load. If the inductance is too low, the current at L X may exceed the maximum rating. The minimum allowed inductor value is expressed by:where I MAX ≈525mA (peak L X current) and t ON is the on-time of the L X output.The most common MAX630 circuit is a boost-mode converter (Figure 1). When the N-channel output device is on, the current linearly rises since:At the end of the on-time (14µs for 40kHz, 55% duty-cycle oscillator) the current is:The energy in the coil is:At maximum load, this cycle is repeated 40,000 timesper second, and the power transferred through the coil is 40,000 x 5.25 = 210mW. Since the coil only supplies the voltage above the input voltage, at 15V, the DC-DC converter can supply 210mW / (15V - 5V) = 21mA. The coil provides 210mW and the battery directly supplies another 105mW, for a total of 315mW of output power. If the load draws less than 21mA, the MAX630 turns on its output only often enough to keep the output voltage at a constant 15V.Reducing the inductor value increases the available output current: lower L increases the peak current,thereby increasing the available power. The external inductor required by the MAX630 is readily obtained from a variety of suppliers (Table 1). Standard coils are suitable for most applications.Types of InductorsMolded InductorsThese are cylindrically wound coils that look similar to 1W resistors. They have the advantages of low cost and ease of handling, but have higher resistance, higher losses, and lower power handling capability than other types.102112131131104134131131ΩΩΩΩ≤≤=−≤≤=− .. ..R M R R x V VR M R R x V VOUTLBCMOS Micropower Step-Up Switching Regulator 6_______________________________________________________________________________________Potted Toroidal InductorsA typical 1mH, 0.82Ωpotted toroidal inductor (Dale TE-3Q4TA) is 0.685in in diameter by 0.385in high and mounts directly onto a PC board by its leads. Such devices offer high efficiency and mounting ease, but at a somewhat higher cost than molded inductors.Ferrite Cores (Pot Cores)Pot cores are very popular as switch-mode inductors since they offer high performance and ease of design.The coils are generally wound on a plastic bobbin,which is then placed between two pot core sections. A simple clip to hold the core sections together com-pletes the inductor. Smaller pot cores mount directly onto PC boards through the bobbin terminals. Cores come in a wide variety of sizes, often with the center posts ground down to provide an air gap. The gap pre-vents saturation while accurately defining the induc-tance per turn squared.Pot cores are suitable for all DC-DC converters, but are usually used in the higher power applications. They are also useful for experimentation since it is easy to wind coils onto the plastic bobbins.Toroidal CoresIn volume production, the toroidal core offers high per-formance, low size and weight, and low cost. They are,however, slightly more difficult for prototyping, in that manually winding turns onto a toroid is more tedious than on the plastic bobbins used with pot cores.Toroids are more efficient for a given size since the flux is more evenly distributed than in a pot core, where the effective core area differs between the post, side, top,and bottom.Since it is difficult to gap a toroid, manufacturers produce toroids using a mixture of ferromagnetic powder (typically iron or Mo-Permalloy powder) and a binder. The perme-ability is controlled by varying the amount of binder,which changes the effective gap between the ferromag-netic particles. Mo-Permalloy powder (MPP) cores have lower losses and are recommended for the highest effi-ciency, while iron powder cores are lower cost.DiodesIn most MAX630 circuits, the inductor current returns to zero before L X turns on for the next output pulse. This allows the use of slow turn-off diodes. On the other hand, the diode current abruptly goes from zero to full peak current each time L X switches off (Figure 1, D1).To avoid excessive losses, the diode must therefore have a fast turn-on time.F or low-power circuits with peak currents less than 100mA, signal diodes such as 1N4148s perform well.For higher-current circuits, or for maximum efficiency at low power, the 1N5817 series of Schottky diodes are recommended. Although 1N4001s and other general-purpose rectifiers are rated for high currents, they are unacceptable because their slow turn-on time results in excessive losses.MAX630/MAX4193CMOS Micropower Step-UpSwitching Regulator_______________________________________________________________________________________7Table 1. Coil and Core ManufacturersM A X 630/M A X 4193Filter CapacitorThe output-voltage ripple has two components, with approximately 90 degrees phase difference between them. One component is created by the change in the capacitor’s stored charge with each output pulse. The other ripple component is the product of the capacitor’s charge/discharge current and its effective series resis-tance (ESR). With low-cost aluminum electrolytic capacitors, the ESR-produced ripple is generally larger than that caused by the change in charge.where V IN is the coil input voltage, L is its inductance, f is the oscillator frequency, and ESR is the equivalent series resistance of the filter capacitor.The output ripple resulting from the change in charge on the filter capacitor is:where t CHG and t DIS are the charge and dischargetimes for the inductor (1/2f can be used for nominal cal-culations).Oscillator Capacitor, C XThe oscillator capacitor, C X , is a noncritical ceramic or silver mica capacitor. C X can also be calculated by:where f is the desired operating frequency in Hertz, and C INT is the sum of the stray capacitance on the C X pin and the internal capacitance of the package. The internal capacitance is typically 1pF for the plastic package and 3pF for the CERDIP package. Typical stray capacitances are about 3pF for normal PC board layouts, but will be significantly higher if a socket is used.Bypassing and CompensationSince the inductor-charging current can be relatively large, high currents can flow through the ground con-nection of the MAX630/MAX4193. To prevent unwanted feedback, the impedance of the ground path must be as low as possible, and supply bypassing should be used for the device.When large values (>50k Ω) are used for the voltage-setting resistors, R1 and R2 of F igure 1, stray capaci-tance at the V FB input can add a lag to the feedback response, destabilizing the regulator, increasing low-frequency ripple, and lowering efficiency. This can often be avoided by minimizing the stray capacitance at the V FB node. It can also be remedied by adding a lead compensation capacitor of 100pF to 10nF in paral-lel with R1 in Figure 1.DC-DC Converter ConfigurationsDC-DC converters come in three basic topologies:buck, boost, and buck-boost (Figure 2). The MAX630 is usually operated in the positive-voltage boost circuit,where the output voltage is greater than the input.The boost circuit is used where the input voltage is always less than the desired output and the buck circuit is used where the input is greater than the output. Thebuck-boost circuit inverts, and can be used with, inputCMOS Micropower Step-Up Switching Regulator 8_______________________________________________________________________________________Figure 2. DC-DC Converter Configurationsvoltages that are either greater or less than the output. DC-DC converters can also be classified by the control method. The two most common are pulse-width modu-lation (PWM) and pulse-frequency modulation (PF M). PWM switch-mode power-supply ICs (of which current-mode control is one variant) are well-established in high-power off-line switchers. Both PWM and PF M cir-cuits control the output voltage by varying duty cycle. In the PWM circuit, the frequency is held constant and the width of each pulse is varied. In the PFM circuit, the pulse width is held constant and duty cycle is con-trolled by changing the pulse repetition rate.The MAX630 refines the basic PFM by employing a con-stant-frequency oscillator. Its output MOSFET is switched on when the oscillator is high and the output voltages is lower than desired. If the output voltage is higher than desired, the MOSFET output is disabled for that oscillator cycle. This pulse skipping varies the average duty cycle, and thereby controls the output voltage.Note that, unlike the PWM ICs, which use an op amp as the control element, the MAX630 uses a comparator tocompare the output voltage to an onboard reference. This reduces the number of external components and operating current.Typical Applications+5V to +15V DC-DC Converter Figure 1 shows a simple circuit that generates +15V at approximately 20mA from a +5V input. The MAX630 has a ±1.5% reference accuracy, so the output voltage has an untrimmed accuracy of ±3.5% if R1 and R2 are 1% resistors. Other output voltages can also be select-ed by changing the feedback resistors. Capacitor C X sets the oscillator frequency (47pF = 40kHz), while C1 limits output ripple to about 50mV.With a low-cost molded inductor, the circuit’s efficiency is about 75%, but an inductor with lower series resis-tance such as the Dale TE3Q4TA increases efficiency to around 85%. A key to high efficiency is that the MAX630 itself is powered from the +15V output. This provides the onboard N-channel output device with 15V gate drive, lowering its on-resistance to about 4Ω. When +5V power is first applied, current flows through L1 and D1, supplying the MAX630 with 4.4V for startup.+5V to ±15V DC-DC Converter The circuit in F igure 3 is similar to that of F igure 1 except that two more windings are added to the induc-tor. The 1408 (14mm x 8mm) pot core specified is an IEC standard size available from many manufacturers (see Table 1). The -15V output is semiregulated, typi-cally varying from -13.6V to -14.4V as the +15V load current changes from no load to 20mA.2.5W, 3V to 5V DC-DC ConverterSome systems, although battery powered, need high currents for short periods, and then shut down to a low-power state. The extra circuitry of Figure 4 is designed tomeet these high-current needs. Operating in the buck-boost or flyback mode, the circuit converts -3V to +5V.The left side of Figure 4 is similar to Figure 1 and sup-plies 15V for the gate drive of the external power MOS-FET. This 15V gate drive ensures that the external deviceis completely turned on and has low on-resistance.The right side of F igure 4 is a -3V to +5V buck-boost converter. This circuit has the advantage that when theMAX630 is turned off, the output voltage falls to 0V,unlike the standard boost circuit, where the output volt-age is V BATT- 0.6V when the converter is shut down.When shut down, this circuit uses less than 10µA, withmost of the current being the leakage current of the power MOSFET.The inductor and output-filter capacitor values havebeen selected to accommodate the increased power levels. With the values indicated, this circuit can supplyup to 500mA at 5V, with 85% efficiency. Since the leftside of the circuit powers only the right-hand MAX630,the circuit starts up with battery voltages as low as1.5V, independent of the loading on the +5V output.MAX630/MAX4193CMOS Micropower Step-UpSwitching Regulator _______________________________________________________________________________________9M A X 630/M A X 4193+3V Battery to +5V DC-DC ConverterA common power-supply requirement involves conver-sion of a 2.4V or 3V battery voltage to a 5V logic sup-ply. The circuit in Figure 5 converts 3V to 5V at 40mA with 85% efficiency. When I C (pin 6) is driven low, the output voltage will be the battery voltage minus the drop across diode D1.The optional circuitry using C1, R3, and R4 lowers the oscillator frequency when the battery voltage falls to 2.0V. This lower frequency maintains the output-power capability of the circuit by increasing the peak inductor current, compensating for the reduced battery voltage.Uninterruptable +5V SupplyIn Figure 6, the MAX630 provides a continuous supply of regulated +5V, with automatic switchover between line power and battery backup. When the line-powered input voltage is at +5V, it provides 4.4V to the MAX630and trickle charges the battery. If the line-powered input falls below the battery voltage, the 3.6V battery supplies power to the MAX630, which boosts the bat-tery voltage up to +5V, thus maintaining a continuous supply to the uninterruptable +5V bus. Since the +5V output is always supplied through the MAX630, there are no power spikes or glitches during power transfer.The MAX630’s low-battery detector monitors the line-powered +5V, and the LBD output can be used to shut down unnecessary sections of the system during power failures. Alternatively, the low-battery detector could monitor the NiCad battery voltage and provide warning of power loss when the battery is nearly discharged.Unlike battery backup systems that use 9V batteries,this circuit does not need +12V or +15V to recharge the battery. Consequently, it can be used to provide +5V backup on modules or circuit cards that only have 5V available.9V Battery Life ExtenderFigure 7’s circuit provides a minimum of 7V until the 9V battery voltage falls to less than 2V. When the battery voltage is above 7V, the MAX630’s I C pin is low, putting it into the shutdown mode that draws only 10nA. When the battery voltage falls to 7V, the MAX8212 voltage detector’s output goes high, enabling the MAX630. The MAX630 then maintains the output voltage at 7V, even as the battery voltage falls below 7V. The LBD is used to decrease the oscillator frequency when the battery voltage falls to 3V, thereby increasing the output cur-rent capability of the circuit.CMOS Micropower Step-Up Switching Regulator 10______________________________________________________________________________________Figure 4. High-Power 3V to 5V Converter with ShutdownNote that this circuit (with or without the MAX8212) can be used to provide 5V from four alkaline cells. The initial volt-age is approximately 6V, and the output is maintained at 5V even when the battery voltage falls to less than 2V.Dual-Tracking RegulatorA MAX634 inverting regulator is combined with a MAX630 in F igure 8 to provide a dual-tracking ±15Voutput from a 9V battery. The reference for the -15V output is derived from the positive output through R3and R4. Both regulators are set to maximize output power at low-battery voltage by reducing the oscillator frequency, through LBR, when V BATT falls to 7.2V.MAX630/MAX4193Switching Regulator______________________________________________________________________________________11Figure 5. 3V to 5V Converter with Low-Battery Frequency ShiftFigure 7. Battery Life Extension Down to 3V InFigure 6. Uninterruptable +5V SupplyM A X 630/M A X 4193Switching Regulator 12______________________________________________________________________________________Table 2. Maxim DC-DC ConvertersFigure 8. ±12V Dual-Tracking RegulatorMAX630/MAX4193Switching Regulator______________________________________________________________________________________13Package InformationFor the latest package outline information, go to /packages .Chip TopographyLBR17I CV FB6230.089"(2.26mm)C XL XM A X 630/M A X 4193Switching Regulator 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.14____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2008 Maxim Integrated Productsis a registered trademark of Maxim Integrated Products, Inc.Revision History。
MEMORY存储芯片MAX3232CSE中文规格书
*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.For pricing, delivery, and ordering information, please contact Maxim Direct at3.0V to 5.5V , Low-Power, up to 1Mbps, True RS-232Transceivers Using Four 0.1µF External Capacitors MAX3222/MAX3232/MAX3237/MAX3241__________________________________________Typical Operating Characteristics (V CC = +3.3V, 235kbps data rate, 0.1µF capacitors, all transmitters loaded with 3k Ω, T A = +25°C, unless otherwise noted.)TIMING CHARACTERISTICS—MAX3237(V CC = +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)Note 2:MAX3222/MAX3232/MAX3241: C1–C4 = 0.1µF tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF tested at 5.0V ±10%.MAX3237: C1–C4 = 0.1µF tested at 3.3V ±5%; C1–C4 = 0.22µF tested at 3.3V ±10%; C1 = 0.047µF, C2–C4 = 0.33µF testedat 5.0V ±10%.Note 3:Transmitter input hysteresis is typically 250mV.-6-5-4-3-2-101234560MAX3222/MAX3232TRANSMITTER OUTPUT VOLTAGE vs. 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 )200030001000400050000246810121416182022150MAX3222/MAX3232SLEW RATE vs. LOAD CAPACITANCE LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )2000300010004000500005101520253035400MAX3222/MAX3232SUPPLY CURRENT vs. LOAD CAPACITANCE WHEN TRANSMITTING DATA LOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )200030001000400050003.0V to 5.5V , Low-Power, up to 1Mbps, True RS-232Transceivers Using Four 0.1µF External Capacitors MAX3222/MAX3232/MAX3237/MAX3241-7.5-5.0-2.502.55.07.50MAX3241TRANSMITTER 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 )2000300010004000500046810121416182022240MAX3241SLEW RATE vs. LOAD CAPACITANCE LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )200030001000400050000510152025303545400MAX3241SUPPLY CURRENT vs. LOAD CAPACITANCE WHEN TRANSMITTING DATA LOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )20003000100040005000-7.5-5.0-2.502.55.07.50MAX3237TRANSMITTER OUTPUT VOLTAGEvs. 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 )200030001000400050000102030504060700MAX3237SLEW RATE vs. LOAD CAPACITANCE(MBAUD = V CC )LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )500100015002000-7.5-5.0-2.502.55.07.50MAX3237TRANSMITTER 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 )50010001500200001020304050600MAX3237SUPPLY CURRENT vs. LOAD CAPACITANCE (MBAUD = GND)LOAD CAPACITANCE (pF)S U P P L Y C U R R E N T (m A )200030001000400050000246810120MAX3237SLEW RATE vs. LOAD CAPACITANCE (MBAUD = GND)LOAD CAPACITANCE (pF)S L E W R A T E (V /μs )2000300010004000500001*********60700MAX3237SKEW vs. LOAD CAPACITANCE (t PLH - t PHL )LOAD CAPACITANCE (pF)1000150050020002500_____________________________Typical Operating Characteristics (continued)(V CC = +3.3V, 235kbps data rate, 0.1µF capacitors, all transmitters loaded with 3k Ω, T A = +25°C, unless otherwise noted.)3.0V to 5.5V , Low-Power, up to 1Mbps, True RS-232Transceivers Using Four 0.1µF External Capacitors MAX3222/MAX3232/MAX3237/MAX3241Ordering Information (continued)*Dice are tested at T A = +25°C, DC parameters only.+Denotes lead-free package.PART TEMP RANGE PIN-PACKAGEPKG CODE MAX3222EUP+ -40°C to +85°C 20 TSSOPU20+2 MAX3222EAP+ -40°C to +85°C 20 SSOPA20+1 MAX3222EWN+ -40°C to +85°C 18 SOW18+1 MAX3222EPN+ -40°C to +85°C 18 Plastic DipP18+5 MAX3222C/D 0°C to +70°C Dice*— MAX3232CUE+0°C to +70°C 16 TSSOPU16+1 MAX3232CSE+ 0°C to +70°C 16 Narrow SOS16+1 MAX3232CWE+ 0°C to +70°C 16 Wide SOW16+1 MAX3232CPE+ 0°C to +70°C 16 Plastic DIPP16+1 MAX3232EUE+ -40°C to +85°C 16 TSSOPU16+1 MAX3232ESE+ -40°C to +85°C16 Narrow SO S16+5 PART TEMP RANGE PIN-PACKAGE PKG CODE MAX3232EWE+ -40°C to +85°C 16 Wide SO W16+1 MAX3232EPE+ -40°C to +85°C 16 Plastic DIP P16+1MAX3237CAI+ 0°C to +70°C 16 SSOP A28+2 MAX3237EAI+ 0°C to +70°C 28 SSOP A28+1 MAX3241CUI+ 0°C to +70°C 28 TSSOP U28+2 MAX3241CAI+ 0°C to +70°C 28 SSOP A28+1 MAX3241CWI+ 0°C to +70°C 28 SO W28+6 MAX3241EUI+ -40°C to +85°C 28 TSSOP U28+2 MAX3241EAI+ -40°C to +85°C 28 SSOP A28+1 MAX3241EWI+ -40°C to +85°C 28 SO W28+6。
智能双高卡2300MacBook Pro安装指南说明书
The Smart UpgradeDIMENSIONS/WEIGHTTV Dimensions(without the stand)37.8×22.0×3.3 inches(with the stand)37.8×24.1×7.7 inches TV Stand Width30.5×7.7 inchesTV Weight (without the stand)14.8 lbs(with the stand)15.2 lbsCarton Dimensions (WxHxD)42.7×25.7×5.6 inches Shipping Weight 23.1 lbsDISPLAYActual Screen Size (Diagonal)42.5 inches Screen Class 43 inches Screen Type LCDTYPE OF TV Smart TV Yes (Android TV)App StoreYes (Google Play App Store)PICTURE QUALITYScreen Resolution 4K UHD, 3840x2160p Local Dimming No 4K Upscale Yes Motion Rate 120Aspect Ratio 16:9HDR*Yes(Dolby Vision/HDR10/HLG)Backlight Type Source Full ArrayAUDIOAudio Output Power (Watts)7Wx2Audio Enhancement DTS Virtual:XLANGUAGESOn-screen Display English/French/SpanishPOWERPower Consumption 100W Standby Consumption <0.5WPower Supply (Voltage/Hz)AC 120V / 60HzCONNECTIVITYWi-Fi Built In Yes (802.11ac 2.4GHz/5GHz)Bluetooth®YesPORTSHDMI3HDMI CEC, HDMI ARC Yes Ethernet (LAN)Yes USB 2.02RF Antenna1RCA Composite Video Input 1L/R Audio Input for Composite1OTHER FEATURESNoise Reduction Yes Parental Control Yes Closed Caption Yes Sleep Timer Yes Google Assistant Built-In Alexa Works With Chromecast Built-In Web Browser YesWALL MOUNTVESA200×200 / M6ACCESSORIESRemoteYes (Voice Remote)Quick Start Guide and/or User Manual Quick Start Guide is in the box/User Manual is available online Power Cable YesWARRANTY/UPCWarranty 1 yearUPC Code888143007823TECHNICAL SPECIFICATIONSDigital Audio Output 1 Optical Earphone/Audio Output 1Model 43H6570GinchesAll product, product specifications, and data are subject to change without notice to improve reliability, function, design or otherwise. ©2020Hisense USA, All rights reservedHisense USA Corporation7310 McGinnis Ferry Road, Suwanee, GA,30024 1-888-935-8880*HDR viewing experience will vary by model, content availability and internet connection.。
MAX3062EEKA中文资料
DC ELECTRICAL CHARACTERISTICS
(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Notes 1, 2)
PARAMETER DRIVER Differential Driver Output (No Load)
The MAX3060E features slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 115kbps. The MAX3061E, also slewrate limited, transmits up to 500kbps. The MAX3062E driver is not slew-rate limited, allowing transmit speeds up to 20Mbps. All transmitter outputs are protected to ±15kV using the Human Body Model.
8-Pin SOT23 (derate 8.9mW/°C above +70°C)............714mW
Operating Temperature Range MAX306_EE_ _ ................................................-40°C to +85°C
MAX4003EUA-T中文资料
♦ Low-Current Consumption: 5.9mA at VCC = 3.0V ♦ 13µA (typ) Shutdown Current
♦ Available in 8-Bump UCSP or 8-Pin µMAX and Thin QFN Packages
UCSP is a trademark of Maxim Integrated Products, Inc.
Features
♦ Complete RF Detector
♦ Frequency Range from 100MHz to 2500MHz
♦ Input Range of -58dBV to -13dBV (-45dBm to 0dBm into 50Ω)
PARAMETER Supply Voltage
Supply Current
Shutdown Input Current
Logic High Threshold Voltage Logic Low Threshold Voltage DETECTOR OUTPUT
Voltage Range
Output Voltage in Shutdown Output-Referred Noise Small-Signal Bandwidth Slew Rate
元器件交易网
19-2620; Rev 1; 3/03
EVAALVUAAILTAIOBNLEKIT
100MHz to 2500MHz, 45dB RF Detector in a UCSP
MAX4003
General Description
The MAX4003 low-cost, low-power logarithmic amplifier is designed to detect the power levels of RF power amplifiers (PAs) operating from 100MHz to 2500MHz. A typical dynamic range of 45dB makes this logarithmic amplifier useful in a variety of wireless applications including cellular handset PA control, TSSI for wireless terminal devices, and other transmitter power measurements. This logarithmic amplifier provides much wider measurement range and superior accuracy than typical diode-based detectors. Excellent temperature stability is achieved over the full operating range of -40°C to +85°C.
MAXTOR硬盘参数一览表
AXTOR硬盘参数一览表1硬盘系列 (Product Series) 型号 (Model) 容量 (Capacity) 转速 (RPM) 转/分钟平均寻道时间 (Ave Seek Time) 内部传输速率缓存(Cache Buffer) 接口(Interface) 单碟容量碟片数量 Max Safe Shock Block DualWave Processor金钻七代D740X 6L080J4 80GB 7200 <8.5ms 54.2MB/sec 2MB UDMA133 40GB 2 Yes Yes Yes6L060J3 60GB 7200 <8.5ms 54.2MB/sec 2MB UDMA133 40GB 2 Yes Yes Yes6L040J2 40GB 7200 <8.5ms 54.2MB/sec 2MB UDMA133 40GB 1 Yes Yes Yes6L020J1 20GB 7200 <8.5ms 54.2MB/sec 2MB UDMA133 40GB 1 Yes Yes Yes星钻三代D540X-4D 4G160J8 160GB 5400 <9.0ms 43.4MB/sec 2MB UDMA133 40GB 4 Yes Yes Yes 4G120J6 120GB 5400 <9.0ms 43.4MB/sec 2MB UDMA133 40GB 3 Yes Yes Yes4D080H4 80GB 5400 <12ms 43.4MB/sec 2MB UDMA100 40GB 2 Yes Yes Yes4D060H3 60GB 5400 <12ms 43.4MB/sec 2MB UDMA100 40GB 2 Yes Yes Yes4D040H2 40GB 5400 <12ms 43.4MB/sec 2MB UDMA100 40GB 1 Yes Yes Yes4D020H1 20GB 5400 <12ms 43.4MB/sec 2MB UDMA100 40GB 1 Yes Yes Yes金钻六代 Diamond Max Plus 60 5T060H6 60GB 7200 <8.7ms 57MB/sec 2MB UDMA100 20GB 3 Yes Ye s Yes5T040H4 40GB 7200 <8.7ms 57MB/sec 2MB UDMA100 20GB 2 Yes Yes Yes5T030H3 30GB 7200 <8.7ms 57MB/sec 2MB UDMA100 20GB 2 Yes Yes Yes5T020H2 20GB 7200 <8.7ms 57MB/sec 2MB UDMA100 20GB 1 Yes Yes Yes5T010H1 10GB 7200 <8.7ms 57MB/sec 2MB UDMA100 20GB 1 Yes Yes Yes美钻一代 531DX 2R015H1 15GB 5400 <15ms 49.7MB/sec 2MB UDMA100 30GB 1 Yes Yes Yes2R010H1 10.2GB 5400 <15ms 49.7MB/sec 2MB UDMA100 20GB 1 Yes Yes Yes硬盘系列 (Product Series) 型号 (Model) 容量(Capacity) 转速 (RPM)转/分钟平均寻道时间 (Ave Seek Time) 内部传输速率缓存(Cache Buffer) 接口(Interface) 单碟容量碟片数量 Max Safe Shock Block DualWave Processor美钻二代541DX 2B020H1 20GB 5400 <12ms 46.4MB/sec 2MB UDMA100 40GB 1 Yes Yes Yes2B015H1 15GB 5400 <12ms 46.4MB/sec 2MB UDMA100 40GB 1 Yes Yes Yes2B010H1 10GB 5400 <12ms 46.4MB/sec 2MB UDMA100 40GB 1 Yes Yes Yes星钻二代536DX 4W100H6 100GB 5400 <11ms 43.2MB/sec 2MB UDMA100 33.3GB 6 Yes Yes Yes 4W080H6 80GB 5400 <11ms 43.2MB/sec 2MB UDMA100 33.3GB 6 Yes Yes Yes4W060H4 60GB 5400 <11ms 43.2MB/sec 2MB UDMA100 33.3GB 4 Yes Yes Yes4W040H2 40GB 5400 <11ms 43.2MB/sec 2MB UDMA100 33.3GB 2 Yes Yes Yes4W030H2 30GB 5400 <11ms 43.2MB/sec 2MB UDMA100 33.3GB 2 Yes Yes YesMAXTOR硬盘参数一览表2硬盘系列 (Product Series) 型号 (Model) 容量 (Capacity) 转速 (RPM) 转/分钟平均寻道时间 (Ave Seek Time) 内部传输速率缓存(Cache Buffer) 接口(Interface) 单碟容量碟片数量 Max Safe Shock Block DualWaveProcessor钻石十代Diamond Max 60 36147H8 61470MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 4 Yes Yes Yes 34610H6 46100MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 3 Yes Yes Yes钻石十代Diamond Max VL30 33073H4 30735MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 2 Yes Yes Yes 32049H3 20490MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 2 Yes Yes Yes32305H3 23050MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 2 Yes Yes Yes31536H2 15367MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 1 Yes Yes Yes31369H2 13690MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 1 Yes Yes Yes31024H2 10240MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 1 Yes Yes Yes30840H2 8400MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 1 Yes Yes Yes30768H1 7683MB 5400 <9ms 40.8MB 512KB UDMA100 15.3G 1 Yes Yes Yes30680H1 6800MB 5400<9ms 40.8MB 512KBUDMA100 15.3G 1 Yes Yes Yes30510H15100MB 5400 <9ms40.8MB 512KB UDMA100 15.3G 1Yes Yes Yes金钻四代Diamond Max Plus 4054098H840,980MB 7200 <9ms 43.2MB/sec 2MB UDMA100 10.2G 4 Yes Yes Yes53073H6 30,735MB 7200 <9ms 43.2MB/sec 2MBUDMA100 10.2G 3 Yes Yes Yes52732H6 27,320MB 7200 <9ms 43.2MB/sec 2MB UDMA100 10.2G 3 Yes Yes Yes 52049H4 20,490MB 7200 <9ms 43.2MB/sec 2MB UDMA100 10.2G2 Yes Yes Yes51536H3 15,367MB 7200 <9ms 43.2MB/sec 2MB UDMA100 10.2G 2 Yes Yes Yes 51369H3 13,690MB7200 <9ms 43.2MB/sec 2MBUDMA100 10.2G 2 Yes Yes Yes51024U2 10,245MB7200 <9ms 43.2MB/sec 2MB UDMA100 10.2G 1 Yes Yes Yes硬盘系列 (Product Series) 型号 (Model) 容量 (Capacity) 转速 (RPM) 转/分钟平均寻道时间 (Ave Seek Time) 内部传输速率缓存(Cache Buffer) 接口(Interface) 单碟容量碟片数量 Max Safe Shock Block DualWaveProcessor星钻一代Diamond Max 80 98196H881,960MB 5400 <9ms 46.7MB 2MB UDMA100 20.5G 4Yes Yes Yes96147H6 61,470MB 5400 <9ms 46.7MB 2MB UDMA100 20.5G 3 Yes Yes Yes星钻一代Diamond Max VL4034098H4 40980MB 5400 <9.5ms 46.7MB 2MB UDMA100 20.5G2 Yes Yes Yes33073H3 30730MB 5400 <9.5ms46.7MB 2MB UDMA100 20.5G 2 Yes YesYes32049H2 20490MB 5400 <9.5ms 46.7MB 2MB UDMA100 20.5G 1 Yes Yes Yes31535H2 15350MB 5400 <9.5ms 46.7MB 2MB UDMA100 20.5G 1 Yes Yes Yes31024H1 10240MB 5400<9.5ms 46.7MB 2MB UDMA100 20.5G 1 Yes YesYes金钻五代Diamond Max Plus 4054610H6 46,100MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 3 Yes Yes Yes54098H6 40,980MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 3 Yes Yes Yes 53073H4 30,730MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 2 Yes Yes Yes 52049H3 20,490MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 2 Yes Yes Yes 51536H2 15,360MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 1 Yes Yes Yes 51369H2 13,690MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 1 Yes Yes Yes 51023H2 10,230MB 7200 <8.7ms 49.5MB/sec 2MB UDMA100 15.3G 1 Yes Yes Yes。
MAX5431AEUB+中文资料
MAX5430 toc06
DIVIDER RATIO ACCURACY (%)
±15V Digitally Programmable Precision Voltage-Dividers for PGAs
Typical Operating Characteristics
(VDD = +15V, VSS = -15V or VSS = GND, VH = 5V, VL =-5V, TA = 25°C, unless otherwise noted.) (Note 3)
CIN
5
pF
POWER REQUIREMENTS
Negative Supply CurrentµA
Positive Supply Current
IDD
35
60
µA
Positive Power-Supply Voltage
VDD
Negative Power-Supply Voltage
VSS
10.8 -15.75
15.75
V
0
V
DYNAMIC PERFORMANCE
Switching Time
tD2W, tH2W
0.3
µs
Note 1: All devices are 100% production tested at TA = +25°C. SOT23 packages are guaranteed by design from TA = TMIN to TMAX. Note 2: Gain accuracy is measured without load at pin W.
Features
♦ Four Noninverting PGA Gain Configurations: AV = 1, 2, 4, and 8
MAX323中文资料
8 V+ 7 IN1 6 COM2 5 NC2
DIP/SO/µMAX
LOGIC
0 1
MAX325 SWITCH 1
OFF ON
SWITCH 2
ON OFF
________________________________________________________________ Maxim Integrated Products 1
For equivalent devices specified for dual-supply operation, see the MAX320/MAX321/MAX322 data sheet. For quad versions of the MAX320 series, see MAX391/ MAX392/MAX393 data sheet.
Continuous Current (any terminal) ......................................30mA Peak Current, COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle max) ............................100mA ESD per Method 3015.7 ..................................................>2000V Continuous Power Dissipation
<2.5nA at +85°C o Fast Switching: tON <150ns, tOFF <100ns o Guaranteed Break-Before-Make (MAX325 only) o TTL/CMOS Logic Compatible
Flash Max P3 460 4W手册说明书
Flash Max P34604WManual1.Technical descriptionThe FlashMax P3light is a medical device,class I,in compliance with MDD (Medical Devices Directive)section IX.The light must only be used in dental clinics by dental personnel,and only for designated purposes.The product is classified as an electronic medical device electric class II according to DS/EN 60601-1:2006.The product is classified as a class 2LED product according to EN 60825-1:2001Ed1.2.CMS Dental declares that the product described in this manual complies with the above mentioned standards.The FlashMax P3light consists of a hand piece,a combined re-charger/holder and an external power supply.Disposable covers and tips protect against cross contamination.WARNINGS1.Do not expose directly into theeyes,or look directly at the emitted light.2.Eyewear protection should beused.3.Medical electronic equipment is sensitive to electromagnetic fields.Portable and mobile high frequency communication devices may interfere with medical devices.In order to maintain proper operation,followinstructions in this e of the light without a tip may causeoverheating of the tissue if the light is used close to the gingiva.4.Do not reuse covers or tips as this may cause cross contamination.5.If the light beeps every 2s when placed in docking station,it is a warning that the charging voltage is 6V or higher,i.e.a wrong power supply is being used.1.1Technical specificationsPower supply Producer Dongguan Shilong Fuhua Electronic Co.LTD.Model UE08WCP-050100SPA Input power 100–240VAC,50/60Hz Output power 5.0VDC,1.0ABattery Battery type LiFePO 4Nominal voltage 3.2V Nominal capacity 1.200mA Re-charging time2hoursUser capacityapprox.500seconds LED Diode O u t p u t intensity 4.000-5.000mW/cm2Wavelength450-470nm (85%),peak 460nm1.2Environmental conditions for intended useTemperature range +10oC to +40oC Humidity range 30%to 75%Atmospheric pressure range70kPa to 106kPa (0.7bar to 1.06bar)2.Preparing to use the FlashMax P34604W lightConnect the power supply under the base of the charging dock and to a main electrical outlet.Place the light in the dock and the battery will begin charging.This is indicated by a green light flashing.eThe FlashMax P3is only intended for the polymerization of dental materials: 1s time cycle is used for a layered build-up and/or bonding agents.The3 s time cycle is used for the finishing layer and/or darker shades.Three program modesThe FlashMax P3light has three programs each with time settings of1 or3s.To see the program selected,press the two buttons at the same time and hold for3s until a beep is heard.The diode will flash the color of the program, green,orange or red.To change the program,scroll using any button.Stop at the chosen program and wait for the beep.The light will stay in the chosen mode until changed manually.3.1Intelligent Automated Functions The FlashMax P3is the first light with this new concept.The green program mode is the manual mode.Press the large button and the unit will light for3s.Press the small button and it will light for1s.In the orange program mode,pressing the large button will give you3s of light,a0.5s pause,then again3s of light.The small button1s of light,a0.5 s pause,then1s of light.This mode is used for layered build-ups when the composite restoration is wide enough to require two side by side activations.In the red program mode the unit will light continuously for either3s+3s+ 3s+3s etc,or1s+1s+1s+1s etc with0,5s intervals until you press the button again to stop it.This mode is used for cementing brackets or veneers or in any other situation where repetitive activations are required.3.2Temperature safetyThe FlashMax P3light has a safety cut off to preserve the lifetime of the diode should overheating occur.When the light gets close to the cut off temperature,you will be warned by intermittent beeping.The light can be used for approximately another15s before it cuts off.Overheating is indicated by3short beeps followed by fast red flashing.The light can cool passively or be actively cooled if you need to use it right away.3.3Battery power savingSleepIf the light has not been activated for5 minutes,or placed in the dock,it will go into sleep mode to conserve energy. Press any button to reactivate it.Deep sleepIf not placed in the charging dock or activated for6hours the light will go into deep sleep mode.It must be placedinthedockforonesecondtobe reactivatedA1/B1:Indications:Three-colored diode and soundReady ready for use Activated lightsound to indicate start and stop Charging battery may be used Low batteryif not used,place in dockDiode heat warning 15s from cut-off Diode overheatedneeds to cool before it can be activated Sleep mode press any button Deep sleep mode place in dock Errorreset by pressing two buttons on same side for 3sDiode colorsSound4.Covers andtipsd 4mm d 8mmThe light should only be used with a tip and cover attached.There are two standard tips for the FlashMax P3-a d 4mm and a d 8mm tip.5.CleaningThe hand piece and charging dock may be wiped with a slightly damp cloth using standard cleaning solutions and surface disinfection products,typically based on 70%alcohol.Do not disperse disinfection fluids into the diode opening.This may damage the diode.The removable cover is disposable.The tips are disposable.Attaching and detaching tips.Tips are snapped onto the cover by pressing the two items together.The tips can be moved +/-15degrees in the longitudinal direction of the cover.To detach the tip,rotate the tip away from the cover and it will pop out.bellingObserve Operating InstructionsProduct Serial NumberMedical Electrical Equipment Directive,DS/EN60601-1:2006Electrical shock protection,Type BSafety of laser products,EN60825-1:2001Ed1.2Class2LED productMedical Electrical Equipment Directive,DS/EN60601-1:2006Electrical double insulation,Class IIMedical Devices Directive,MDD Directive93/42/EECMedical device,Class ICanadian Standards Association,CSAApproved for use in Canada and USAWaste Electrical and Electronic Equipment Directive,WEEE Directive2002/96/ECDispose product to a recycling central7.S e r v i c e a n d r e p a i rThe FlashMax P3light is covered by a2year warranty.CAUTIONThe FlashMax P3light must only be serviced and repaired by your CMS Dental distributor,otherwise the warranty will be void.FMP3Manual/15.03.2011/version1.0Your FlashMax P3distributor:HEXAGON INTERNATIONAL(GB)LTD。
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General DescriptionThe MAX5522–MAX5525 are dual, 10-bit, ultra-low-power, voltage-output, digital-to-analog converters (DACs) offering rail-to-rail buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and consume less than 5µA, making the devices suitable for low-power and low-voltage applications. A shutdown mode reduces overall current, including the reference input current, to just 0.18µA. The MAX5522–MAX5525 use a 3-wire serial interface that is compatible with SPI™,QSPI™, and MICROWIRE™.Upon power-up, the MAX5522–MAX5525 outputs are driven to zero scale, providing additional safety for applications that drive valves or for other transducers that need to be off during power-up. The zero-scale outputs enable glitch-free power-up.The MAX5522 accepts an external reference input and provides unity-gain outputs. The MAX5523 contains a precision internal reference and provides a buffered external reference output with unity-gain DAC outputs.The MAX5524 accepts an external reference input and provides force-sense outputs. The MAX5525 contains a precision internal reference and provides a buffered external reference output with force-sense DAC outputs.The MAX5524/MAX5525 are available in a 4mm x 4mm x 0.8mm, 12-pin, thin QFN package. The MAX5522/MAX5523 are available in an 8-pin µMAX package. All devices are guaranteed over the extended -40°C to +85°C temperature range.For 12-bit compatible devices, refer to the MAX5532–MAX5535 data sheet. For 8-bit compatible devices,refer to the MAX5512–MAX5515 data sheet.ApplicationsPortable Battery-Powered Devices InstrumentationAutomatic Trimming and Calibration in Factory or FieldProgrammable Voltage and Current Sources Industrial Process Control and Remote Industrial DevicesRemote Data Conversion and Monitoring Chemical Sensor Cell Bias for Gas Monitors Programmable LCD BiasFeatures♦Ultra-Low 5µA Supply Current♦Shutdown Mode Reduces Supply Current to 0.18µA (max)♦Single +1.8V to +5.5V Supply♦Small 4mm x 4mm x 0.8mm Thin QFN Package ♦Internal Reference Sources 8mA of Current (MAX5523/MAX5525)♦Flexible Force-Sense-Configured Rail-to-Rail Output Buffers ♦Fast 16MHz, 3-Wire, SPI-/QSPI-/MICROWIRE-Compatible Serial Interface♦TTL- and CMOS-Compatible Digital Inputs with Hysteresis ♦Glitch-Free Outputs During Power-UpMAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs________________________________________________________________Maxim Integrated Products1Ordering Information19-3064; Rev 1; 12/04For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .SPI and QSPI are trademarks of Motorola, Inc.MICROWIRE is a trademark of National Semiconductor Corp.Pin ConfigurationsM A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsABSOLUTE 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 DD to GND..............................................................-0.3V to +6V OUTA, OUTB to GND.................................-0.3V to (V DD + 0.3V)FBA, FBB to GND.......................................-0.3V to (V DD + 0.3V)SCLK, DIN, CS to GND..............................-0.3V to (V DD + 0.3V)REFIN, REFOUT to GND ............................-0.3V to (V DD + 0.3V)Continuous Power Dissipation (T A = +70°C)12-Pin Thin QFN (derate 16.9mW/°C above +70°C).....1349mW 8-Pin µMAX (derate 5.9mW/°C above +70°C).............471mWOperating Temperature Range ...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°CMAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)(V DD = +1.8V to +5.5V, OUT_ unloaded, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS (continued)MAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs_______________________________________________________________________________________5Note 3:Gain is tested at code 1023. For the MAX5524/MAX5525, FB_ is connected to its respective OUT_.Note 4:Guaranteed by design. Not production testsed Note 5:V DD must be a minimum of 1.8V.Note 6:Outputs can be shorted to V DD or GND indefinitely, provided that package power dissipation is not exceeded.Note 7:Optimal noise performance is at 2nF load capacitance.Note 8:Thermal hysteresis is defined as the change in the initial +25°C output voltage after cycling the device from T MAX to T MIN .Note 9:All digital inputs at V DD or GND.Note 10:Load = 10k Ωin parallel with 100pF, V DD = 5V, V REF = 4.096V (MAX5522/MAX5524) or V REF = 3.9V (MAX5523/MAX5525).TIMING CHARACTERISTICS(V DD = +4.5V to +5.5V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)TIMING CHARACTERISTICSM A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs 6_______________________________________________________________________________________Typical Operating Characteristics(V DD = 5.0V, V REF = 4.096V (MAX5522/MAX5524), VREF = 3.9V (MAX5523/MAX54525), T A = +25°C, unless otherwise noted.)SUPPLY CURRENT vs. SUPPLY VOLTAGE(MAX5522/MAX5524)M A X 5522 t o c 01SUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (µA )5.55.04.0 4.52.5 3.0 3.52.00.51.01.52.02.53.03.54.04.55.001.5 6.0SUPPLY CURRENT vs. TEMPERATURE(MAX5522/MAX5524)M A X 5522 t o c 02TEMPERATURE (°C)S U P P L Y C U R R E N T (µA )603510-150.51.01.52.02.53.03.54.04.55.00-4085SUPPLY CURRENT vs. SUPPLY VOLTAGE(MAX5523/MAX5525)M A X 5522 t o c 03SUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (µA )5.55.04.0 4.52.5 3.0 3.52.0123456789101.5 6.0SUPPLY CURRENT vs. TEMPERATURE(MAX5523/MAX5525)M A X 5522 t o c 04TEMPERATURE (°C)S U P P L Y C U R R E N T (µA )603510-15123456789100-4085SHUTDOWN SUPPLY CURRENTvs. TEMPERATURE (MAX5522/MAX5524)M A X 5522 t o c 05TEMPERATURE (°C)S H U T D O W N S U P P L Y C U R R E N T (n A )603510-1511010010000.1-4085SHUTDOWN SUPPLY CURRENTvs. TEMPERATURE (MAX5523/MAX5525)M A X 5522 t o c 06TEMPERATURE (°C)S H U T D O W N S U P P L Y C U R R E N T (n A )603510-1511010010000.1-4085STANDBY SUPPLY CURRENTvs. TEMPERATURE (MAX5523/MAX5525)TEMPERATURE (°C)S T A N D B Y S U P P L Y C U R R E N T (µA )603510-150.51.01.52.02.53.03.54.04.55.00-4085SUPPLY CURRENT vs. CLOCK FREQUENCYFREQUENCY (kHz)S U P P L Y C U R R E N T (µA )1000010001001010.110100100010.01100000SUPPLY CURRENT vs. LOGIC INPUT VOLTAGELOGIC INPUT VOLTAGE (V)S U P P L Y C U R R E N T (m A )4.54.03.0 3.51.0 1.5 2.0 2.50.50.51.01.52.02.53.03.54.04.55.0005.0MAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs_______________________________________________________________________________________7INL vs. INPUT CODE (V DD = V REF = 1.8V)DIGITAL INPUT CODEI N L (L S B )1000800200400600-1.0-0.8-0.6-0.4-0.200.20.4-1.21200INL vs. INPUT CODE (V DD = V REF = 5V)M A X 5522 t o c 11DIGITAL INPUT CODEI N L (L S B )1000800200400600-1.0-0.8-0.6-0.4-0.200.20.4-1.21200DNL vs. INPUT CODE (V DD = V REF = 1.8V)M A X 5522 t o c 12DIGITAL INPUT CODED N L (L S B )1000800600400200-0.02-0.0100.010.020.030.040.050.06-0.0301200DNL vs. INPUT CODE (V DD = V REF = 5V)M A X 5522 t o c 13DIGITAL INPUT CODED N L (L S B )1000800600400200-0.02-0.0100.010.020.030.04-0.031200OFFSET VOLTAGE vs. TEMPERATURETEMPERATURE (°C)O F F S E T V O L T A G E (m V )603510-150.20.40.60.81.0-1.0-0.20-4085-0.4-0.6-0.8GAIN ERROR CHANGE vs. TEMPERATURETEMPERATURE (°C)G A I N E R R O R C H A N G E (L S B )603510-15-0.08-0.06-0.04-0.0200.020.040.060.080.10-0.10-4085DIGITAL FEEDTHROUGH RESPONSE20µs/divCS 5V/div SCLK 5V/div DIN 5V/div OUT 50mV/divZERO SCALEDAC OUTPUT LOAD REGULATIONvs. OUTPUT CURRENTDAC OUTPUT CURRENT (µA)D A C O U T P U T V O L T A GE (V )8006004002000-200-400-600-8000.60420.60440.60460.60480.60500.6040-10001000DAC OUTPUT LOAD REGULATIONvs. OUTPUT CURRENTDAC OUTPUT CURRENT (mA)D A C O U T P U T V O L T A GE (V )86-8-6-42-241.94051.94101.94151.94201.94251.94301.94351.94401.9400-1010Typical Operating Characteristics (continued)(V DD = 5.0V, V REF = 4.096V (MAX5522/MAX5524), VREF = 3.9V (MAX5523/MAX54525), T A = +25°C, unless otherwise noted.)M A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs 8_______________________________________________________________________________________Typical Operating Characteristics (continued)(V DD = 5.0V, V REF = 4.096V (MAX5522/MAX5524), VREF = 3.9V (MAX5523/MAX54525), T A = +25°C, unless otherwise noted.)DAC OUTPUT VOLTAGE vs. OUTPUT SOURCE CURRENTOUTPUT SOURCE CURRENT (mA)O U T P U T V O L T A G E (V )1010.1000.0101234500.001100DAC OUTPUT VOLTAGE vs. OUTPUT SINK CURRENTOUTPUT SINK CURRENT (mA)D A C O U T P U T V O L T A GE (V )1010.10.010.51.01.52.02.53.03.54.04.55.000.001100OUTPUT LARGE-SIGNAL STEP RESPONSE(V DD = 1.8V, V REF = 1.2V)MAX5522 toc21100µs/divV OUT200mV/divOUTPUT LARGE-SIGNAL STEP RESPONSE(V DD = 5V, V REF = 3.9V)MAX5522 toc22200µs/divV OUT500mV/divOUTPUT MINIMUM SERIES RESISTANCEvs. LOAD CAPACITANCEM A X 5522 t o c 23CAPACITANCE (µF)M I N I M U M S E R I E S R E S I S T A N C E (Ω)1010.10.010.00110020030040050060000.0001100POWER-UP OUTPUT VOLTAGE GLITCHMAX5522 toc2420ms/divV OUT10mV/divV DD 2V/divMAJOR CARRY OUTPUT VOLTAGE GLITCH(CODE 7FFh TO 800h)(V DD = 5V, V REF = 3.9V)MAX5522 toc25100µs/divV OUTAC-COUPLED 5mV/divREFERENCE OUTPUT VOLTAGEvs. TEMPERATURETEMPERATURE (°C)R E F E R E N C E O U T P U T V O L T A G E (V )6035-15103.9053.9103.9153.9203.9253.9303.9353.9403.900-4085REFERENCE OUTPUT VOLTAGE vs. REFERENCE OUTPUT CURRENTREFERENCE OUTPUT CURRENT (µA)R E F E R E N C E O U T P U T V O L T A G E (V )75005500350015001.2151.2161.2171.2181.2191.2201.214-500MAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs_______________________________________________________________________________________9Typical Operating Characteristics (continued)(V DD = 5.0V, V REF = 4.096V (MAX5522/MAX5524), VREF = 3.9V (MAX5523/MAX54525), T A = +25°C, unless otherwise noted.)REFERENCE OUTPUT VOLTAGE vs. REFERENCE OUTPUT CURRENTREFERENCE OUTPUT CURRENT (µA)R E F E R E N C E O U T P U T V O L T A G E (V )14,50012,00095007000450020003.893.903.913.923.88-500REFERENCE OUTPUT VOLTAGEvs. SUPPLY VOLTAGEM A X 5522 t o c 29SUPPLY VOLTAGE (V)R E F E R E N C E O U T P U T V O L T A G E (m V )5.55.04.0 4.52.5 3.0 3.52.01.217321.217341.217361.217381.217401.217421.217441.217461.217481.217501.217301.5 6.0REFERENCE LINE-TRANSIENT RESPONSE(V REF = 1.2V)MAX5522 toc30100µs/div2.8V V DD 1.8V V REF500mV/divREFERENCE LINE-TRANSIENT RESPONSE(V REF = 3.9V)MAX5522 toc31100µs/div 5.5V V DD 4.5V V REF500mV/div 3.9VREFERENCE LOAD TRANSIENT(V DD = 1.8V)MAX5522 toc32200µs/divREFOUT SOURCE CURRENT 0.5mA/div V REF500mV/divREFERENCE LOAD TRANSIENT(V DD = 5V)MAX5522 toc33200µs/div REFOUT SOURCE CURRENT 0.5mA/divV REF500mV/div 3.9VREFERENCE LOAD TRANSIENT(V DD = 1.8V)MAX5522 toc34200µs/divREFOUT SINK CURRENT 50µA/divV REF500mV/divM A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs 10______________________________________________________________________________________Typical Operating Characteristics (continued)(V DD = 5.0V, V REF = 4.096V (MAX5522/MAX5524), VREF = 3.9V (MAX5523/MAX54525), T A = +25°C, unless otherwise noted.)REFERENCE PSRR vs. FREQUENCYFREQUENCY (kHz)P O W E R -S U P P L Y R E J E C T I O N R A T I O (d B )100100.11102030405060708000.011000REFERENCE OUTPUT NOISE(0.1Hz TO 10Hz) (V DD = 1.8V, V REF = 1.2V)MAX5522 toc381s/div100µV/divREFERENCE OUTPUT NOISE(0.1Hz TO 10Hz) (V DD = 5V, V REF = 3.9V)MAX5522 toc391s/div100µV/divDAC-TO-DAC CROSSTALKMAX5522 toc40400µs/divOUTBAC-COUPLED 10mV/divOUTA1V/divOUTB AT FULL SCALEREFERENCE PSRR vs. FREQUENCYFREQUENCY (kHz)P O W E R -S U P P L Y R E J E C T I O N R A T I O (d B )100100.11102030405060708000.011000REFERENCE LOAD TRANSIENT(V DD = 5V)MAX5522 toc35200µs/divREFOUT SINK CURRENT 100µA/divV REF500mV/div 3.9VMAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsFunctional DiagramsM A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs Functional Diagrams (continued)Detailed Description The MAX5522–MAX5525 dual, 10-bit, ultra-low-power, voltage-output DACs offer rail-to-rail buffered voltage outputs. The DACs operate from a 1.8V to 5.5V supply and require only 5µA (max) supply current. These devices feature a shutdown mode that reduces overall current, including the reference input current, to just 0.18µA (max) The MAX5523/MAX5525 include an inter-nal reference that saves additional board space and can source up to 8mA, making it functional as a system reference. The 16MH z, 3-wire serial interface is com-patible with SPI, QSPI, and MICROWIRE protocols. When V DD is applied, all DAC outputs are driven to zero scale with virtually no output glitch. The MAX5522/ MAX5523 output buffers are configured in unity gain and come in µMAX packages. The MAX5524/MAX5525 output buffers are configured in force sense allowing users to externally set voltage gains on the output (an output-amplifier inverting input is available). The MAX5524/MAX5525 come in 4mm x 4mm thin QFN packages.Digital InterfaceThe MAX5522–MAX5525 use a 3-wire serial interfacethat is compatible with SPI/QSPI/MICROWIRE protocols (Figures 1 and 2).The MAX5522–MAX5525 include a single, 16-bit, inputshift register. Data loads into the shift register throughthe serial interface. CS must remain low until all 16 bitsare clocked in. The 16 bits consist of 4 control bits(C3–C0), 10 data bits (D9–D0) (Table1), and 2 sub-bits(S1 and S0). D9–D0 are the DAC data bits and S1 andS0 are the sub-bits. The sub-bits must be set to zero for proper operation. Following the control bits, data loadsMSB first, D9–D0. The control bits C3–C0 control theMAX5522–MAX5525, as outlined in Table2.Each DAC channel includes two registers: an input reg-ister and a DAC register. The input register holds input data. The DAC register contains the data updated tothe DAC output.The double-buffered register configuration allows anyof the following:•Loading the input registers without updating the DAC registers•Updating the DAC registers from the input registers •Updating all the input and DAC registers simultaneouslyMAX5522–MAX5525 Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs Functional Diagrams (continued)M A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsFigure 1. Timing DiagramFigure 2. Register Loading DiagramMAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsX = Don’t care.*Standby mode can be entered from normal operation only. It is not possible to enter standby mode from shutdown.Power ModesThe MAX5522–MAX5525 feature two power modes to conserve power during idle periods. In normal opera-tion, the device is fully operational. In shutdown mode,the device is completely powered down, including the internal voltage reference in the MAX5523/MAX5525.The MAX5523/MAX5525 also offer a standby mode in which all circuitry is powered down except the internal voltage reference. Standby mode keeps the reference powered up while the remaining circuitry is shut down,allowing it to be used as a system reference. It also helps reduce the wake-up delay by not requiring the ref-erence to power up when returning to normal operation.Shutdown ModeThe MAX5522–MAX5525 feature a software-program-mable shutdown mode that reduces the supply current and the interface input-current to 0.18µA (max). Writing an input control word with control bits C[3:0] = 1110(Table 2) places the device in shutdown mode. In shut-down, the MAX5522/MAX5524 reference input and DAC output buffers go high impedance. Placing the MAX5523/MAX5525 into shutdown turns off the internal reference and the DAC output buffers go high impedance. The seri-al interface still remains active for all devices.Table 2 shows several commands that bring the MAX5522–MAX5525 back to normal operation. The power-up time from shutdown is required before the DAC outputs are valid.Note: For the MAX5523/MAX5525, standby mode can-not be entered directly from shutdown mode. The device must be brought into normal operation first before entering standby mode.Standby Mode (MAX5523/MAX5525 Only)The MAX5523/MAX5525 feature a software-program-mable standby mode that reduces the typical supply current to 3µA (max). Standby mode powers down all circuitry except the internal voltage reference. Place the device in standby mode by writing an input control word with control bits C[3:0] = 1100 (Table 2). The internal reference and serial interface remain active while the DAC output buffers go high impedance.For the MAX5523/MAX5525, standby mode cannot be entered directly from shutdown mode. The device must be brought into normal operation first before entering standby mode. To enter standby from shutdown, issue the command to return to normal operation followed immediately by the command to go into standby.Table 2 shows several commands that bring the MAX5523/MAX5525 back to normal operation. When transitioning from standby mode to normal operation,only the DAC power-up time is required before the DAC outputs are valid.Reference InputThe MAX5522/MAX5524 accept a reference with a volt-age range extending from 0 to V DD . The output voltage (V OUT ) is represented by a digitally programmable volt-age source as:V OUT = (V REF x N / 256) x gainwhere N is the numeric value of the DAC’s binary input code (0 to 1023), V REF is the reference voltage, gain is the externally set voltage gain for the MAX5524, and gain is one for the MAX5522.In shutdown mode, the reference input enters a high-impedance state with an input impedance of 2.5G Ω(typ).Reference OutputThe MAX5523/MAX5525 internal voltage reference is software configurable to one of four voltages. Upon power-up, the default reference voltage is 1.214V.Configure the reference voltage using D8 and D9 data bits (Table 3) when the control bits are as follows C[3:0]= 1100, 1101, or 1110 (Table 2). V DD must be kept at a minimum of 200mV above V REF for proper operation.M A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsMAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsApplications Information1-Cell and 2-Cell CircuitsSee Figure 3 for an illustration of how to power the MAX5522–MAX5525 with either one lithium-ion battery or two alkaline batteries. The low current consumption of the devices make the MAX5522–MAX5525 ideal for battery-powered applications.Programmable Current SourceSee the circuit in Figure 4 for an illustration of how to configure the MAX5524/MAX5525 as a programmable current source for driving an LED. The MAX5524/MAX5525 drive a standard NPN transistor to program the current source. The current source (I LED ) is defined in the equation in Figure 4.Figure 3. Portable Application Using Two Alkaline Cells or One Lithium Coin CellFigure 4. Programmable Current Source Driving an LEDFigure 5. Transimpedance Configuration for a Voltage-Biased Current-Output TransducerM A X 5522–M A X 5525Voltage Biasing aCurrent-Output TransducerSee the circuit in Figure 5 for an illustration of how to configure the MAX5524/MAX5525 to bias a current-out-put transducer. In Figure 5, the output voltage of the MAX5524/MAX5525 is a function of the voltage drop across the transducer added to the voltage drop across the feedback resistor R.Unipolar OutputFigure 6 shows the MAX5524 in a unipolar output con-figuration with unity gain. Table 4 lists the unipolar out-put codes.Bipolar OutputThe MAX5524 output can be configured for bipolar operation as shown in Figure 7. The output voltage is given by the following equation:V OUT_ = V REFIN x [(N A - 512) / 512]where N A represents the decimal value of the DAC’s binary input code. Table 5 shows the digital codes (off-set binary) and the corresponding output voltage for the circuit in Figure 7.Configurable Output GainThe MAX5524/MAX5525 have force-sense outputs,which provide a connection directly to the inverting ter-minal of the output op amp, yielding the most flexibility.The advantage of the force-sense output is that specific gains can be set externally for a given application. The gain error for the MAX5524/MAX5525 is specified in a unity-gain configuration (op-amp output and inverting ter-minals connected), and additional gain error results from external resistor tolerances. Another advantage of the force-sense DAC is that it allows many useful circuits to be created with only a few simple external components.An example of a custom fixed gain using the MAX5524/MAX5525 force-sense output is shown in Figure 8. In this example, R1 and R2 set the gain for V OUTA .V OUTA = [(V REFIN x N A ) / 1024] x [1 + (R2 / R1)]where N A represents the numeric value of the DAC input code.Self-Biased Two-Electrode Potentiostat ApplicationSee the circuit in Figure 10 for an illustration of how to use the MAX5525 to bias a two-electrode potentiostat on the input of an ADC.Power Supply andBypassing ConsiderationsBypass the power supply with a 4.7µF capacitor in parallel with a 0.1µF capacitor to GND. Minimize lengths to reduce lead inductance. If noise becomes an issue, use shielding and/or ferrite beads to increase isolation. For the thin QFN package, connect the exposed pad to ground.Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsLayout ConsiderationsDigital and AC transient signals coupling to GND can create noise at the output. Use proper grounding tech-niques, such as a multilayer board with a low-inductance ground plane. Wire-wrapped boards and sockets are not recommended. For optimum system performance, use printed circuit (PC) boards. Good PC board ground lay-out minimizes crosstalk between DAC outputs, reference inputs, and digital inputs. Reduce crosstalk by keeping analog lines away from digital lines.MAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsFigure 7. Bipolar Output CircuitFigure 8. Separate Force-Sense Outputs Create Unity and Greater-than-Unity DAC Gains Using the Same ReferenceFigure 9. Software-Configurable Output GainFigure 10. Self-Biased Two-Electrode Potentiostat ApplicationM A X 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs Chip InformationTRANSISTOR COUNT: 10,688PROCESS: BiCMOSFigure 11. Driven Two-Electrode Potentiostat ApplicationMAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs______________________________________________________________________________________21Package 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 5522–M A X 5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACs 22______________________________________________________________________________________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 .)MAX5522–MAX5525Dual, Ultra-Low-Power,10-Bit, Voltage-Output DACsMaxim 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 ____________________23©2004 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 .)。