CN3717_datasheet

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UC3717AN;UC3717AQTR;UC3717AQTRG3;UC3717ANG4;UC3717AQ;中文规格书,Datasheet资料

4/97•Full-Step, Half-Step and Micro-Step Capability•Bipolar Output Current up to 1A •Wide Range of Motor Supply Voltage 10-46V•Low Saturation Voltage with Integrated Bootstrap•Built-In Fast Recovery Commutating Diodes•Current Levels Selected in Steps or Varied Continuously•Thermal Protection with Soft InterventionStepper Motor Drive CircuitThe UC3717A is an improved version of the UC3717, used to switch drive the current in one winding of a bipolar stepper motor. The UC3717A has been modified to supply higher winding current, more reliable thermal protection, and improved efficiency by providing inte-grated bootstrap circuitry to lower recirculation saturation voltages.The diagram shown below presents the building blocks of the UC3717A. Included are an LS-TTL compatible logic input, a current sensor, a monostable, a thermal shutdown network, and an H-bridge output stage. The output stage features built-in fast recovery com-mutating diodes and integrated bootstrap pull up. Two UC3717As and a few external components form a complete control and drive unit for LS-TTL or micro-processor controlled stepper motor systems.The UC3717A is characterized for operation over the temperature range of 0°C to +70°C.BLOCK DIAGRAMFEATURESDESCRIPTIONVoltageLogic Supply, V CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Output Supply, V m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V Input VoltageLogic Inputs (Pins 7, 8, 9). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V Analog Input (Pin 10). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V CC Reference Input (Pin 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Input CurrentLogic Inputs (Pins 7, 8, 9). . . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA Analog Inputs (Pins 10, 11). . . . . . . . . . . . . . . . . . . . . . . . . . . . -10mA Output Current (Pins 1, 15). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±1.2A Junction Temperature, T J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Storage Temperature Range, T S . . . . . . . . . . . . . . . . . . -55°C to +150°CABSOLUTE MAXIMUM RATINGS (Note 1)Note 1: All voltages are with respect to ground, Pins 4,5, 12, 13. Currents are positive into, negative out of the specified terminal. Pin numbers refer to DIL-16 pack-age.Consult Packaging Section of Databook for thermal limi-tations and considerations of package.PLCC-20 (TOP VIEW) Q Package PACKAGE PIN FUNCTION FUNCTION PIN N/C1 B OUT2 Timing3 V m4 Gnd5 N/C6 Gnd7 V CC8 I19 Phase10 N/C11 I012 Current13 V R14 Gnd15 N/C16 Gnd17 V m18 A OUT19 Emitters 20DIL-16 (TOP VIEW)J or N PackageCONNECTION DIAGRAMSELECTRICAL CHARACTERISTICS(Refer to the test circuit, Figure 6. V m = 36V, V CC = 5V, V R = 5V, T A = 0°C to 70°C,unless otherwise stated, T A = T J.)PARAMETERS TEST CONDITIONS MIN TYP MAX UNITS Supply Voltage, V m (Pins 3, 14)1046 V Logic Supply Voltage, V CC (Pin 6) 4.75 5.25V Logic Supply Current, I CC (Pin 6)I O = I1 = 0715mA Thermal Shutdown Temperature+160+180°C Logic InputsInput Low Voltage, (Pins 7, 8, 9)0.8V Input High Voltage, (Pins 7, 8, 9)2V CC V Low Voltage Input Current, (Pins 7, 8, 9)V I= 0.4V, Pin 8 -100µAV I = 0.4V, Pins 7 and 9-400mA High Voltage Input Current, (Pins 7, 8, 9)V I = 2.4V10µA ComparatorsComparator Low, Threshold Voltage (Pin 10)V R = 5V; I O = L; I1=H668090mV Comparator Medium, Threshold Voltage (Pin 10)V R = 5V; I O = H; I1 = L 236250266mV Comparator High, Threshold Voltage (Pin 10)V R = 5V; I O = L; I1 = L396420436mV Comparator Input, Current (Pin 10)±20 µA Cutoff Time, t OFF R T = 56kΩ, C T = 820pF2535µs Turn Off Delay, t D(See Figure 5) 2 µs Source Diode-Transistor PairSaturation Voltage, V SAT(Pins 1, 15)I m = -0.5A, Conduction Period 1.7 2.1V (See Figure 5)I m = -0.5A, Recirculation Period 1.1 1.35V Saturation Voltage, V SAT(Pins 1, 15)I m = -1A, Conduction Period 2.1 2.8V (See Figure 5)I m = -1A, Recirculation Period 1.7 2.5V LeakageCurrent V m = 40V300µA Diode Forward Voltage, V F I m = -0.5A1 1.25VI m = -1A 1.3 1.7VFigure 1. Typical Source Saturation Voltagevs Output Current (Recirculation Period)Figure 2. Typical Source Saturation Voltage vs Output Current (Conduction Period)PARAMETERSTEST CONDITIONSMINTYPMAXUNITSSink Diode-Transistor PairSaturation Voltage, V SAT (Pins 1, 15)I m = 0.5A 0.81.1 1.35V I m = 1A 1.62.3V Leakage CurrentV m = 40V 300µA Diode Forward Voltage, V FI m = 0.5A 1.1 1.5V I m = 1A1.42VELECTRICALCHARACTERISTICS (cont.)(Refer to the test circuit, Figure 6. V M = 36V, V CC = 5V, V R = 5V, T A = 0°C to 70°C, unless otherwise stated, T A = T J.)Figure 3. Typical Sink SaturationVoltage vs Output CurrentFigure 4. Typical Power Dissipationvs Output CurrentFigure 5. Typical Waveforms with MA Regulating(phase = 0)The UC3717A’s drive circuit shown in the block diagram includes the following components.(1) H-bridge output stage (2) Phase polarity logic(3) Voltage divider coupled with current sensing compa- rators(4) Two-bit D/A current level select(5) Monostable generating fixed off-time (6) Thermal protectionOUTPUT STAGEThe UC3717A’s output stage consists of four Darlington power transistors and associated recirculating power di-odes in a full H-bridge configuration as shown in Figure 7. Also presented, is the new added feature of inte-grated bootstrap pull up, which improves device per-formance during switched mode operation. While in switched mode, with a low level phase polarity input, Q2is on and Q3 is being switched. At the moment Q3 turns off, winding current begins to decay through the commu-tating diode pulling the collector of Q3 above the supply voltage. Meanwhile, Q6 turns on pulling the base of Q2higher than its previous value. The net effect lowers thesaturation voltage of source transistor Q2 during recircu-lation, thus improving efficiency by reducing power dissi-pation.Figure 6. UC3717A Test CircuitFigure 7. Simplified Schematic of Output StageNote: Dashed lines indicate current decay paths.FUNCTIONAL DESCRIPTIONPHASE POLARITY INPUTThe UC3717A phase polarity input controls current direc-tion in the motor winding. Built-in hysteresis insures im-munity to noise, something frequently present in switched drive environments. A low level phase polarity input enables Q2 and Q3 as shown in Figure 7. During phase reversal, the active transistors are both turned off while winding current delays through the commutating di-odes shown. As winding current decays to zero, the inac-tive transistors Q1 and Q4 turn on and charge the winding with current of the reverse direction. This delay insures noise immunity and freedom from power supply current spikes caused by overlapping drive signals.PHASE INPUT Q1, Q4Q2, Q3 LOW OFF ONHIGH ON OFF CURRENT CONTROLThe voltage divider, comparators, monostable, and two-bit D/A provide a means to sense winding peak current, select winding peak current, and disable the winding sink transistors.The UC3717A switched driver accomplishes current con-trol using an algorithm referred to as "fixed off-time." When a voltage is applied across the motor winding, the current through the winding increases exponentially. The current can be sensed across an external resistor as an analog voltage proportional to instantaneous current. This voltage is normally filtered with a simple R C low-pass network to remove high frequency transients, and then compared to one of the three selectable thresholds. The two bit D/A input signal determines which one of the three thresholds is selected, corresponding to a desired winding peak current level. At the moment the sense volt-age rises above the selected threshold, the UC3717A’s monostable is triggered and disables both output sink drivers for a fixed off-time. The winding current then cir-culates through the source transistor and appropriate di-ode. The reference terminal of the UC3717A provides a means of continuously adjusting the current threshold to allow microstepping. T able 1 presents the relationship between the two-bit D/A input signal and selectable cur-rent level.TABLE 1I O I1CURRENT LEVEL00100%1060%0119%11Current Inhibit OVERLOAD PROTECTIONThe UC3717A is equipped with a new, more reliable ther-mal shutdown circuit which limits the junction tempera-ture to a maximum of 180C by reducing the winding cur-rent.PERFORMANCE CONSIDERATIONSIn order to achieve optimum performance from the UC3717A careful attention should be given to the follow-ing items.External Components: The UC3717A requires a mini-mal number of external components to form a complete control and switch drive unit. However, proper selection of external components is necessary for optimum per-formance. The timing pin, (pin 2) is normally connected to an RC network which sets the off-time for the sink power transistor during switched mode. As shown in Fig-ure 8, prior to switched mode, the winding current in-creases exponentially to a peak value. Once peak current is attained the monostable is triggered which turns off the lower sink drivers for a fixed off-time. During off-time winding current decays through the appropriate diode and source transistor. The moment off-time times out, the motor current again rises exponentially produc-ing the ripple waveform shown. The magnitude of wind-ing ripple is a direct function of off-time. For a given off-time T OFF, the values of R T and C T can be calculated from the expression:T OFF=0.69R T C Twith the restriction that R T should be in the range of 10-100k. As shown in Figure 5, the switch frequency F S is a function of T OFF and T ON. Since T ON is a function of the reference voltage, sense resistor, motor supply, and winding electrical characteristics, it generally varies dur-ing different modes of operation. Thus, F S may be ap-proximated nominally as:F S=1⁄1.5(T OFF).Normally, Switch Frequency Is Selected Greater than Figure 8. A typical winding current waveform. Wind-ing current rises exponentially to a selected peak value. The peak value is limited by switched mode operation producing a ripple in winding current. A phase polarity reversal command is given and wind-ing current decays to zero, then increases exponen-tially.Low-pass filter components R C C C should be selected so that all switching transients from the power transistors and commutating diodes are well smoothed, but the pri-mary signal, which can be in the range of 1/T OFF or higher must be passed. Figure 5A shows the waveform which must be smoothed, Figure 5B presents the desired waveform that just smoothes out overshoot without radi-cal distortion.The sense resistor should be chosen as small as practi-cal to allow as much of the winding supply voltage to be used as overdrive to the motor winding. V RS, the voltage across the sense resistor, should not exceed 1.5V. Voltage Overdrive: In many applications, maximum speed or step rate is a desirable performance charac-teristic. Maximum step rate is a direct function of the time necessary to reverse winding current with each step. In response to a constant motor supply voltage, the winding current changes exponentially with time, whose shape is determined by the winding time constant and expressed as:I m=V mR [1−EXP(−R T⁄L)]as presented in Figure 9. With rated voltage applied, the time required to reach rated current is excessive when compared with the time required with over-voltage ap-plied, even though the time constant L/R remains con-stant. With over-voltage however, the final value of current is excessive and must be prevented. This is ac-complished with switch drive by repetitively switching the sink drivers on and off, so as to maintain an average value of current equal to the rated value. This results in a small amount of ripple in the controlled current, but the increase in step rate and performance may be consider-able.Interference: Electrical noise generated by the chopping action can cause interference problems, particularly in the vicinity of magnetic storage media. With this in mind, printed circuit layouts, wire runs and decoupling must be considered. 0.01 to 0.1µF ceramic capacitors for high fre-quency bypass located near the drive package across V+ and ground might be very helpful. The connection and ground leads of the current sensing components should be kept as short as possible.Half-Stepping: In half step sequence the power input to the motor alternates between one or two phases being energized. In a two phase motor the electrical phase shift between the windings is 90°. The torque developed is the vector sum of the two windings energized. Therefore when only one winding is energized the torque of the mo-tor is reduced by approximately 30%. This causes a torque ripple and if it is necessary to compensate for this, the V R input can be used to boost the current of the sin-gle energized winding.Figure 9. With rated voltage applied, winding current does not exceed rated value, but takes L/R seconds to reach 63% of its final value - probably too long. Increased performance requires an increase in applied volt-age, of overdrive, and therefore a means to limit current. The UC3717A motor driver performs this task effi-ciently.The θJA of the UC3717AN plastic package can be re-duced by soldering the GND pins to a suitable copper area of the printed circuit board or to an external heat sink. Due to different lead frame design, θJA of the ce-ramic J package cannot be similarly reduced.The diagram of Figure 11 shows the maximum package power P TOT and the θJA as a function of the side " l " of two equal square copper areas having a thickness of 35µ(see Figure 10).During soldering the pins’ temperature must not exceed 260°C and the soldering time must not be longer than 12seconds.The printed circuit copper area must be connected to electrical ground.APPLICATIONSA typical chopper drive for a two phase bipolar perma-nent magnet or hybrid stepping motor is shown in Figure12. The input can be controlled by a microprocessor,TTL, LS, or CMOS logic.The timing diagram in Figure 13 shows the required sig-nal input for a two phase, full step stepping sequence.Figure 14 shows the required input signal for a one phase-two phase stepping sequence called half-step-ping.The circuit of Figure 15 provides the signal shown in Fig-ure 13, and in conjunction with the circuit shown in Fig-ure 12 will implement a pulse-to-step two phase, full step, bi-directional motor drive.The schematic of Figure 16 shows a pulse to half step circuit generating the signal shown in Figure 14. Care has been taken to change the phase signal the same time the current inhibit is applied. This will allow the cur-rent to decay faster and therefore enhance the motorperformance at high step rates.Figure 10. Example of P .C. Board CopperArea which is used as Heatsink.MOUNTING INSTRUCTIONSFigure 12. Typical Chopper Drive for a TwoPhase Permanent Magnet Motor.Figure 11. Maximum Package Power and Junctionto Ambient Thermal Resistance vs Side "l ".Figure 16. Half-Step, Bi-directional Drive LogicFigure 14. Phase and Current-Inhibit Signal for Half-Stepping (8 Step Sequence)Figure 15. Full Step, Bi-directional Two Phase Drive LogicUNITRODE CORPORATION7 CONTINENTAL BLVD. • MERRIMACK, NH 03054TEL. (603) 424-2410 •FAX (603) 424-3460Figure 13. Phase Input Signal for Two Phase Full Step Drive (4 Step Sequence)PACKAGING INFORMATIONOrderable DeviceStatus (1)Package Type Package DrawingPins Package Qty Eco Plan (2)Lead/Ball Finish MSL Peak Temp (3)UC3717AN ACTIVE PDIP N 1625Green (RoHS &no Sb/Br)CU NIPDAU N /A for Pkg Type UC3717ANG4ACTIVE PDIP N 1625Green (RoHS &no Sb/Br)CU NIPDAU N /A for Pkg Type UC3717AQ ACTIVE PLCC FN 2046Green (RoHS &no Sb/Br)CU SN Level-2-260C-1YEAR UC3717AQG3ACTIVE PLCC FN 2046Green (RoHS &no Sb/Br)CU SN Level-2-260C-1YEAR UC3717AQTR ACTIVE PLCC FN 201000Green (RoHS &no Sb/Br)CU SN Level-2-260C-1YEAR UC3717AQTRG3ACTIVEPLCCFN201000Green (RoHS &no Sb/Br)CU SNLevel-2-260C-1YEAR(1)The marketing status values are defined as follows:ACTIVE:Product device recommended for new designs.LIFEBUY:TI has announced that the device will be discontinued,and a lifetime-buy period is in effect.NRND:Not recommended for new designs.Device is in production to support existing customers,but TI does not recommend using this part in a new design.PREVIEW:Device has been announced but is not in production.Samples may or may not be available.OBSOLETE:TI has discontinued the production of the device.(2)Eco Plan -The planned eco-friendly classification:Pb-Free (RoHS),Pb-Free (RoHS Exempt),or Green (RoHS &no Sb/Br)-please check /productcontent for the latest availability information and additional product content details.TBD:The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS):TI's terms "Lead-Free"or "Pb-Free"mean semiconductor products that are compatible with the current RoHS requirements for all 6substances,including the requirement that lead not exceed 0.1%by weight in homogeneous materials.Where designed to be soldered at high temperatures,TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt):This component has a RoHS exemption for either 1)lead-based flip-chip solder bumps used between the die and package,or 2)lead-based die adhesive used between the die and leadframe.The component is otherwise considered Pb-Free (RoHS compatible)as defined above.Green (RoHS &no Sb/Br):TI defines "Green"to mean Pb-Free (RoHS compatible),and free of Bromine (Br)and Antimony (Sb)based flame retardants (Bror Sb do not exceed 0.1%by weight in homogeneous material)(3)MSL,Peak Temp.--The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications,and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.TI bases its knowledge and belief on information provided by third parties,and makes no representation or warranty as to the accuracy of such information.Efforts are underway to better integrate information from third parties.TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.TI and TI suppliers consider certain information to be proprietary,and thus CAS numbers and other limited information may not be available for release.In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s)at issue in this document sold by TI to Customer on an annual basis.PACKAGE OPTION ADDENDUM6-May-2009TAPE AND REELINFORMATION*Alldimensions are nominalDevicePackage Type Package Drawing Pins SPQReel Diameter (mm)Reel Width W1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W (mm)Pin1Quadrant UC3717AQTR PLCCFN201000330.016.410.310.3 4.912.016.0Q1PACKAGE MATERIALS INFORMATION6-Oct-2008分销商库存信息:TIUC3717AN UC3717AQTR UC3717AQTRG3 UC3717ANG4UC3717AQ UC3717AQG3。

UT371 372 操作手册说明书

Model UT371/372 OPERATING MANUALTABLE OF CONTENTSTITLE PAGE 334567891113131517Overview Unpacking Inspection Safety Information Rules For Safe Operation International Electrical Symbols The Meter Structure Functional Buttons Setup Display Symbols Measurement Operation A. RPM Measurement B. Counts C. Data Transferring and USB 1TABLE OF CONTENTSTITLE PAGE 181819202020212122Specifications A. General Specifications B. Environmental Requirements Accuracy Specifications A. RPM B. Counts Maintenance A. General Service B. Replacing the Battery 2Model UT371 and UT372 is a stable, safe and reliable digital non-contact Tachometer.This Tachometer can measure RPM and counts. RPM range is 10 ~ 99999 while counts range is 0 ~ 99999.Open the package case and take out the Meter. Check the following items carefully to see any missing or damaged part:Description English Operating Manual Reflecting Tape USB Interface Cable (UT372 only)Software(UT372 only)1.5V Battery (LR6)OverviewThis Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings and Notes strictly.Item 12345Qty1 piece10 pieces 1piece1 piece4 piecesUnpacking Inspection3In the event you find any missing or damage, please contact your dealer immediately. Safety InformationThis Meter complies with the standards IEC61010-031, IEC61326, : in pollution degree 2Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter may be impaired.In this manual, a Warning identifies conditions and actions that pose hazards to the user, or may damage the Meter or the equipment under test.A Note identifies the information that user should pay attention to.International electrical symbols used on the Meter and in this Operating Manual are explained on page 6.4Rules For Safe OperationBefore using the Meter inspect the case. Do not use the Meter if it is damaged or the case (or part of the case) is removed. Look for cracks or missing plastic.Do not use or store the Meter in an environment of high temperature, humidity,explosive, inflammable and strong magnetic field. The performance of the Meter may deteriorate after dampened.Do not point laser directly at eye.Replace the battery as soon as the battery indicator appears. When thebattery is between 4.5V ~4.8V, the battery indicator appears. When thebattery is between 4.3V ~ 4.5V, battery indicator blinking, the Meter will be turned off after 1 minute.When opening the battery door, must make sure the Meter is power off.When servicing the Meter, use only the same model number or identical electrical specifications replacement parts.The internal circuit of the Meter shall not be altered at will to avoid damage of the Meter and any accident.5Soft cloth and mild detergent should be used to clean the surface of the Meter when servicing. No abrasive and solvent should be used to prevent the surface of the Meter from corrosion, damage and accident.Turn the Meter off when it is not in use and take out the battery when not using for a long time.Constantly check the battery as it may leak when it has been using for some time, replace the battery as soon as leaking appears. A leaking battery will damage the Meter.International Electrical Symbols6Figure 1The Meter Structure (see figure 1)Tachometer Light Source.LCD Display.USB Port (UT372 only)HousingFunctional Buttons7Functional ButtonsBelow table indicated for information about the functional button operations.Button Operation Performedl Press once to turn the meter on.l Press and hold for 1 minute to turn it off.l When measuring RPM and Counts, press once to enter the Hold mode. Press it againto exit hold mode.l When measuring RPM and Counts, press it to toggle between RPM and Counts feature.l Press and hold for 1 minute to enter setup feature, the LCD displays USB. After that,each press to step through LED / SR / AOFF / CLK / exiting setup feature to enter RPMor Count. You could press ON/OFF button to exit setup mode and returning to normalmeasurement mode at any time.l Press this button to choose maximum reading, minimum reading, average reading,zerong, Tunel Under Tach measurement mode, press M/M/A button to select MAX/MIN/AVE andnormal value measurement,After entering USB/LED/SR/AOFF/CLK mode, press this button to setup 0 or 1 and time.l In the RPM or COUNT mode.press and hold the button for more than second therelative time will be clear and execute HOLD function In the COUNT mode pressing thebutton will be clear.ON/OFF R/C M/M/A 8SetupA. USB setupPress R/C button to select USB feature after turning on the Meter. Then press M/M/A button to setup 0 or 1. 0 means turn the USB off. 1 means enable the USB feature.B. LED setupPress R/C button to select LED feature after turning on the Meter. Then press M/M/A button to setup 0 or 1. 0 means turn the LED laser off. 1 means enable the LED laser feature.C. SR sampling rate setupPress R/C button to select SR feature after turning on the Meter. Then press M/M/A button to setup 005 ~ 255. Press and hold M/M/A button to access quick setting.D. AOFF setupPress R/C button to select AOFF feature after turning on the Meter. Then press M/M/A button to setup 0 or 1. 0 is disable auto power off feature. 1 means enable auto power off feature,After enable auto power off feature, the Meter will be auto power off after ten minutes9if you do not press any button for 10 minutes. You could press ON/OFF button to turn on the Meter again after the Meter is off.E. CLK setupPress R/C button to select CLK feature after turning on the Meter. Then press M/M/A button to setup 0 or 1. 0 is hours and minutes format. 1 is minutes and seconds format.10Display Symbols (see figure 2)Figure 2111 2 3 4 5 6 7 8 9 10 11 12Unit of TachometerUnit of CountsTimeThe battery is low.Indicator of Sleep Mode Measurement of RPM and Counts Data Hold is onDisplay of Maximum reading Display of Minimum reading Display of Average readingUSB is onDisplay of Measurement reading lNumber Meaning 12Warning WarningTo reserve battery, the USB feature will be automatically off when the Meter is restarted. The other setting remains unchanged.The Time will be off after the HOLD feature is enabled. The time will be on again after existing HOLD mode.l l A. RPM Measurement (see figure 3)l Do not point laser directly at eye.l When carrying out measurement, the distance must be more than 50mm.l To avoid hurt yourself or damage to the meter, do not let speedy rotary object to touch the Meter.Measurement Operation13Figure 3To carry out RPM measuremnet, follow thefollowing procedure:Apply a piece of reflecting tape to the objectunder test.Position the Meter on a flat place. Hold the Meter50~200mm from the Tachometer light source tothe object under test.Press ON/OFF button, the Meter is default toenter the RPM measurement mode. Point theTachometer light source to reflective tape, thevertical angle of the reflecting tape is not greaterthan 30°.The LCD displays the RPM reading.Note:When measuring RPM, the LCD displays “0.0000”if there is no signal for continuous 7 seconds.When the RPM reading is greater than 99999.the LCD displays OL.1.2.3.4.1.2.14Figure 4B. CountsSelf-lighted Counts (see figure 4)1. Position the Meter on a flat place. Hold theMeter 50~200mm and at the vertical angel notgreater than 30° from the Tachometer light sourceto the object under test.2. Press the ON/OFF button3. Press the R/C button to select Count mode.4. Point he Tachometer light source to the objectunder count5. The LED scans the object under count, theMeter accumulates the counts and displays thequantity.Note:1.The object under count must be reflective,otherwise Counts feature cannot be used 15Receiving Light Source Outside (see figure 5)Figure 5Position the Meter on a flat place. Hold the Meter50~200mm and at the vertical angel not greater than30° from the Tachometer light source to the object undertest.Set up the Meter, object under counts and outside lightsource as figure 5Press ON/OFF buttonTurn the LED off, refer to page 9 point B.Then press R/C button to select Counts mode.The object under count passes through between theMeter and the outside light source, the Meter accumulatesthe counts and displays quantity.Note:Under the count mode, when the quantity is greaterthan 99999 RPM, the Meter displays OL and hold thedata.Press M/M/A button zeroing the Counts.Press ON/OFF to re-start Counting.1.2.3.4.5.6.1.2.3.16C. Data Transferring and USB (UT372 only, see figure 6)Connect the USB interface cable, the Meter and the computer as per the figure 6.Figure 617A. General Specificationsl Display: 5 digits LCD display, Maximum display 99999.l Overloading: Display OL .lBattery Deficiency: Display .l Sampling Rate: 5 mini-second to 255 mini seconds adjustable.l Transducer Tyype: Photo Diode and Laserl Measurement Distance: 50mm ~ 200mml Drop Test: one meterl Power: 4pcs x 1.5V batteries (AA)l Dimensions: 184 x 56 x 34mml Weight: Approximate 100g (excluding battery)Specifications18B. Environmental Requirementsl For indoor use only.l Altitude: 2000ml Temperature and humidity:ØOperating:0o C~30o C(85%R.H)30o C~40o C (75%R.H)40o C~50o C (45%R.H)ØStorage:-20o C~ +60o C(85%R.H)l Safety/ Compliances: IEC61010-031, IEC61326, IEC 61010-1pollution degree 2.l19Accurate Specificationso COperating temperature: 23oOperating humidity: 80%RHTemperature Coefficient: 0.1 x (accuracy) /o CA. RPMRange Resolution Maximum input frequency 0~ 99999 1 digits 10kHz, Pulse Width 5% 20MAINTENANCEThis section provides basic maintenance information including battery replacement instruction.WarningDo not attempt to repair or service your Meter unless you are qualified to do so and have the relevant calibration, performance test, and service information.Do not attempt to open the back housing to avoid damaging to the Meter or affecting accuracy.A. General Servicel Periodically wipe the case with a damp cloth and mild detergent. Do notuse abrasives or solvents.l Turn the Meter power off when it is not in use.l Take out the battery when it is not using for a long time.l Do not use or store the Meter in a place of humidity, high temperature,explosive, inflammable and strong magnetic field.21B. Replacing the Battery(see figure 7)Figure 71. Press ON/OFF to turn the Meter off.2. Turn the Meter’s front case down.3. Remove the screw from the battery door, and separate the battery door from the case bottom.4. Take out the old battery and replace with 4 x1.5V battery (AA).5. Rejoin the case bottom and the batterycompartment, and reinstall the screw.22* END *This operating manual is subject to change without notice.23All rights reserved.Manufacturer:Uni-Trend Technology (Dongguan) LimitedDong Fang Da DaoBei Shan Dong Fang Industrial Development District Hu Men Town, Dongguan CityGuang Dong ProvinceChinaPostal Code: 523 925Headquarters:Uni-Trend Group LimitedRm901, 9/F, Nanyang Plaza57 Hung To Road Kwun TongKowloon, Hong KongTel: (852) 2950 9168Fax: (852) 2950 9303Email:******************24。

chip试剂盒17-371说明书翻译

CHIP步骤实验前准备：·处理细胞，将细胞保持在装有20ml培养基的150mm培养皿中。

·冰预冷PBS（第3步）、培养皿（第六步）。

·每个150mm培养皿准备42ml1*PBS(10*PBS +水,冰上预冷。

·预热SDS到室温，确保在细胞裂解之前彻底溶解。

·将protease inhibitor cocktail II放置室温待用。

A体内交联和溶解1、加550 μl 37%的甲醛（或新鲜的%甲醛）到20 ml细胞培养基中进行交联反应，轻轻地晃动混匀。

·甲醛的终浓度为1%。

尽量使用新鲜的甲醛（配置方法见附录B）。

2、)10 min。

3、室温下孵育·不要振荡细胞。

3、取2 ml冰冷的1*PBS于分离管中至于冰上（每个培养皿对应一个），每1ml PBS中加5 ul Protease Inhibitor Cocktail II。

4、加2 ml 10×Glycine到培养皿中将未反应的甲醛消除。

5、晃动混匀并在室温下孵育5 min。

6、将培养皿放在冰上。

7、吸出培养基，尽可能的将培养基去除干净，小心不要扰乱细胞。

8、加20 ml冰冷的1*PBS来洗涤细胞。

9、除去PBS，再用PBS洗涤一次。

10、加2 ml含1×Protease Inhibitor Cocktail II的冷PBS到培养皿中(从第3步得)。

11、将细胞从培养皿刮下来放到离心管中。

》12、4℃，700 g（900~1000 rpm）离心2~5 min沉淀细胞。

13、准备好1 ml(1*107个细胞推荐1ml) SDS Lysis Buffer（含5ul Protease Inhibitor Cocktail II）。

14、除去上清液（此步中的细胞沉淀可以放在-80℃中保存）。

15、用准备好的1 ml SDS Lysis Buffer(含1* Protease Inhibitor Cocktail II）重悬细胞。

蓄电池充电控制芯片CN3717

如韵电子 CONSONANCE Rev 1.15A 铅酸电池充电管理集成电路CN3717概述:CN3717是PWM 降压模式铅酸电池充电管理集成电路，独立对铅酸电池充电进行自动管理，具有封装外形小，外围元器件少和使用简单等优点。

CN3717具有涓流，恒流，过充电和浮充电模式，非常适合铅酸电池的充电。

在过充电和浮充电模式，充电电压由外部电阻分压网络设置；在恒流充电模式，充电电流通过一个外部电阻设置。

对于深度放电的电池，当电池电压低于所设置的过充电电压的81.8%时，CN3717用所设置的恒流充电电流的13%对电池进行涓流充电。

在过充电阶段，充电电流逐渐减小，当充电电流降低到外部电阻所设置的值时，CN3717进入浮充电状态。

在浮充电状态，如果电池电压下降到所设置的过充电电压的81.8%时，自动开始新的充电周期。

当输入电源掉电或者输入电压低于电池电压时，CN3717自动进入低功耗的睡眠模式。

其它功能包括输入低电压锁存，电池温度监测，电池端过压保护和充电状态指示等。

CN3717采用16管脚TSSOP 封装。

应用:●铅酸电池充电 ● 不间断电源 ● 备用电池应用● 便携式工业和医疗仪器 ● 独立电池充电器特点:● 宽输入电压范围：7.5V 到28V ● 对铅酸电池进行完整的充电管理 ● 过充电和浮充电电压由外部电阻分压网络设置 ● 充电电流达5A● PWM 开关频率：300KHz ● 恒流充电电流由外部电阻设置 ● 对深度放电的电池进行涓流充电 ● 过充点结束电流由外部电阻设置 ● 电池温度监测功能 ● 自动再充电功能 ● 双状态指示 ● 软启动功能 ● 电池端过压保护 ● 工作环境温度：－40℃ 到＋85℃ ● 采用16管脚TSSOP 封装 ● 产品无铅，无卤素元素，满足RoHS管脚排列:BAT VCC DRV COM2COM3NC FB CSP典型应用电路:图1 典型应用电路订购信息:管脚描述:极限参数VCC，VG，DRV，CHRG，DONE到GND的电压…….…－0.3V to 30VCSP，BA T到GND的电压………………………………..…－0.3V to 28VCOM3到GND的电压…………………………………...…….6.5V其它管脚到GND的电压………………………..........………－0.3V to V COM3+0.3V存储温度……………………………………………...……..…－65℃---150℃工作环境温度………………………….…………………….…－40℃---85℃焊接温度(10 秒)…………………………………………..……300℃超出以上所列的极限参数可能造成器件的永久损坏。

青岛智腾微电子产品说明书

产品说明书(军品)青岛智腾微电子有限公司目录目录 (I)JLH11-1温度电流变换器......................................................................................- 1 - JLH11-2温度电压变换器......................................................................................- 4 - JLH11-3电流电压变换器......................................................................................- 7 - JLH15/JLH16电荷测量变换器.............................................................................- 9 - JLH18压力变换器..............................................................................................- 11 - JLH24精密选通电荷测量变换器........................................................................- 14 - JLH27差压变换器..............................................................................................- 18 - JLH34压电加速度计变换放大器........................................................................- 21 - TC-83AT集成化红外光电液位传感器..................................................................- 24 -JLH11-1温度电流变换器1 用途采用厚膜制造工艺，16线浅腔双列直插结构，金属封装的线性温度电流变换器。

PBL3717A

PBL3717AApril 1993STEPPER MOTOR DRIVER.FULL STEP -HALF STEP -QUARTER STEP OPERATING MODE.BIPOLAR OUTPUT CURRENT UP TO 1A.FROM 10V UP TO 46V MOTOR SUPPLY VOLTAGE.LOW SATURATION VOLTAGE WITH INTE-GRATED BOOTSTRAP.BUILT IN FAST PROTECTION DIODES .EXTERNALLY SELECTABLE CURRENT LEVEL.OUTPUT CURRENT LEVEL DIGITALLY OR ANALOGUE CONTROLLED.THERMAL PROTECTION WITH SOFT INTER-VENTIONPowerdip 12+2+2(Plastic Package)ORDER CODE :PBL3717ADESCRIPTIONThe PBL3717Ais a monolithic IC which controlsand drives one phase of a bipolar stepper motor with chopper control of the phase current.Current levels maybe selected in threestepsbymeans of two logic inputs which select one of three current compara-tors.When both of these inputs are high the device is disabled.A separate logic input controls the direc-tion of current flow.A monostable,programmed by an external RC net-work,sets the current decay time.The power section is a full H-bridge driver with four internal clamp diodes for current recirculation.An externalconnectionto thelower emitters is available for the insertion of a sensing resistor.Two PBL3717As and few external components form a complete stepper motor drive subsystem.The raccomended operating ambient temperature ranges is from 0to 70°C.The PBL3717Ais supplied in a 12+2+2lead Pow-erdip package.PIN CONNECTION (top view)1/11查询PBL3717A供应商PIN FUNCTIONSN°Name Function1UTPUT B Output Connection(with pin15).The output stage is a”H”bridge formed by fourtransistors and four diodes suitable for switching applications.2PULSE TIME A parallel RC network connected to this pin sets the OFF time of the lower powertransistors.The pulse generator is a monostable triggered by the rising edge ofthe output of the comparators(t off=0.69R T C T).3SUPPLY VOLTAGE B Supply Voltage Input for Half Output StageSee also pin14.4GROUND Ground Connection.With pins5,12and13also conducts heat from die toprinted circuit copper.5GROUND See pin4.6LOGIC SUPPLY Supply Voltage Input for Logic Circuitry7INPUT1This pin and pin9(INPUT0)are logic inputs which select the outputs of thethree comparators to set the current level.Current also depends on the sensingresistor and reference voltage.See truth table.8PHASE This TTL-compatible logic input sets the direction of current flow through theload.A high level causes current to flow from OUTPUT A(source)to OUTPUTB(sink).A schmitt trigger on this input provides good noise immunity and a delaycircuit prevents output stage short circuits during switching.9INPUT0See INPUT1(pin7).10COMPARATORINPUT Input connected to the three comparators.The voltage across the sense resistor is feedback to this input through the low pass filter R C C C.The lower power transistor are disabled when the sense voltage exceeds the reference voltage of the selected comparator.When this occurs the current decays for a time set by R T C T,t off=0.69R T C T.11REFERENCE A voltage applied to this pin sets the reference voltage of the three comparators,this determining the output current(also thus depending on R s and the two inputsINPUT0and INPUT1).12GROUND See pin4.13GROUND See pin4.14SUPPLY VOLTAGE A Supply Voltage Input for Half Output Stage.See also pin13.15OUTPUT A See pin1.16SENSE RESISTOR Connection to Lower Emitters of Output Stage for Insertion of Current SenseResistorTRUTH TABLEInput0(pin9)Input1(pin7)H L H L HHLLNo CurrentLow CurrentMedium CurrentHigh CurrentPBL3717A 2/11PBL3717A BLOCK DIAGRAMABSOLUTE MAXIMUM RATINGSSymbol Parameter Value Unit V s Power Supply Voltage50V V ss Logic Supply Voltage7V V i Logic Input Voltage6V V c Comparator Input V ssV r Reference Input Voltage15VI o Output Current(DC operation) 1.2AT stg Storage Temperature–55to+150°C T j Operating Junction Temperature150°CTHERMAL DATASymbol Parameter Value Unit R th j-case Thermal Resistance Junction-pins11°C/W R th j-amb Thermal Resistance Junction-ambient*40°C/W *Soldered on a35µthick20cm2P.C.board coppe r area.3/11ELECTRICAL CHARACTERISTICS(refer to the test circuit V S=36V,V SS=5V,T amb=25o C unless otherwise specified)Symbol Parameter Test Conditions Min.Typ.Max.Unit V s Supply Voltage(pin3,14)1046V V ss Logic Supply Voltage(pin6) 4.75 5.25VI ss Logic Supply Current(pin6)715mAI R Reference Input Current(pin11)V R=5V0.751mA LOGIC INPUTSV iL Input Low Voltage(pins7,8,9)0.8V V iH Input High Voltage(pin7,8,9)2V ss VI iL Low Voltage Input Current(pins7,8,9)V i=0.4V pin8pins7,9–100–400µAµAI iH High Voltage Input Current(pins7,8,9)V i=2.4V10µA COMPARATORSV CL Comparator Low Threshold Voltage(pin10)V R=5V I o=LI1=H667890mVV CM Comparator Medium Threshold Voltage(pin10)V R=5V I o=LI1=H236251266mVV CH Comparator High Threshold Voltage(pin10)V R=5V I o=LI1=H396416436mVI C Comparator Input Current(pin10)±20µAt off Cutoff Time R T=56kΩC T=820pF2535µs t d Turn Off Delay(see fig.2)2µsI off Output Leakage Current(pins1,15)I o=H I1=H100µA SOURCE DIODE-TRANSISTOR PAIRV sat Saturation Voltage(pins1,15)I M=–0.5A(see fig.2)Conduction PeriodRecirculation Period 1.71.12.11.35VV sat Saturation Voltage(pins1,15)I M=–1A(see fig.2)Conduction PeriodRecirculation Period 2.11.72.82.5VI LK Leakage Current V s=46V300µAV F Diode Forward Voltage I M=–0.5AI M=–1A11.31.251.7VVI SLK Substrate Leakage Current when Clamped I M=–0.5AI M=–1A 25mAmASINK DIODE-TRANSISTOR PAIRV sat Saturation Voltage(pins1,15)I M=0.5AI M=1A 1.11.61.352.3VVI LK Leakage Current V s=46V300µAV F Diode Forward Voltage I M=0.5AI M=1A 1.11.41.52VVPBL3717A 4/11PBL3717A Figure1:Test and Application CircuitFigure2:Waveforms with MA Regulating(phase=0)5/11PBL3717AFigure3:Two Phase Bipolar Stepper Motor DriverFigure4:P.C.Board and Component Layout of the Circuit of fig.3(1:1scale) 6/11Figure5:Input and Output Sequences for Half Step and Full Step OperationAPPLICATION INFORMATIONSFigure3shows a typical application in which two PBL3717A control a two phase bipolar stepper mo-tor.ProgrammingThe logic inputs I0and I1set at three different levels the amplitude of the current flowing in the motor winding according to the truthtable of page2.Ahigh level on the”PHASE”logic input sets the direction of that current from output A to output B;a low level from output B to output A.It is recommended that unused inputs are tied to pin6(V ss)or pin4(GND)as appropriate to avoid noise problem.The current levels can be varied continuously by changing the ref.voltage on pin11.Control of the MotorThe stepper motor can rotate in either directions ac-cording to the sequence of the input signals.It is possible to obtain a full step,a half step and a quar-ter step operation.Full Step OperationBoth the windings of the stepper motor are ener-gized all the time with the same current I MA=I MB. I0andI1remain fixed at whatevertorque value is re-quired.Calling A the condition with winding A energized in one direction and A in the other direction,the se-quencefor full step rotation is:AB→AB→AB→AB etc.For the rotation in the other direction the sequence must be reserved.In the full step operation the torque is constant each step.Half Step OperationPower is applied alternately to one winding then both according to the sequence:AB→B→AB→A→AB→B→AB→A etc. Like full step this can be done at any current level; the torque is not constant but it is lower when only one winding is energized.A coil is turned off by setting I0and I1both high.PBL3717A7/11L≈110LM C≈4⋅10−10LQuarter Step OperationIt is preferable to realize the quarter step operation at full power otherwise the steps will be of very ir-regular size.The extra quarter steps are added to the half steps sequence by puttingone coil on half current accord-ing to the sequence.AB→A2B→B→A__2B→AB→AB2→A etc.Motor SelectionAs the PBL3717A provides constant current drive, with a switching operation,care must be takento se-lect stepper motors with low hysteresis losses to prevent motor over heat.L-C FilterTo reduce EMI and chopping losses in the motor a low pass L-C filter can be inserted across the out-puts of thePBL3717Aasshown on the followingpic-ture.Figure6:Source Saturation Voltage versusOutput Current(recircuit period)Figure7:Source Saturation Voltage versusOutput Current(conduction period) Figure9:Comparator Threshold versusJunction TemperatureFigure8:Sink Saturation Voltage versusOutput CurrentPBL3717A8/11MOUNTING INSTRUCTIONSThe R th j-amb of the PBL3717A can be reduced by soldering the GND pins to a suitable copper area of the printed circuit board or to an external heatsink.The diagram of fig.11shows the maximum dissipa-ble power P tot and the R th j-amb as a function of the side”α”of two equal square copper areas having a thichkness of35µ(see fig.10).Figure10:Example of P.C.BoardCopper Areawhich is used as Heatsink Figure11:Max.Dissipable Power and Junction-Ambient Thermal Resistance versussize”a”PBL3717A9/11PBL3717APOWERDIP16PACKAGE MECHANICAL DATAmm inch DIM.MIN.TYP.MAX.MIN.TYP.MAX.a10.510.020B0.85 1.400.0330.055 b0.500.020b10.380.500.0150.020 D20.00.787 E8.800.346e 2.540.100e317.780.700F7.100.280I 5.100.201L 3.300.130Z 1.270.050 10/11PBL3717AInformation furnished is believed to be accurate and reliable.However,SGS-THOMSON Microelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use.No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.Specifica-tions mentioned in this publication are subject to change without notice.This publication supersedes and replaces all information pre-viously supplied.SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics.©1994SGS-THOMSON Microelectronics-All Rights ReservedSGS-THOMSON Microelectronics GROUP OF COMPANIESAustralia-Brazil-France-Germany-Hong Kong-Italy-Japan-Korea-Malaysia-Malta-Morocco-The Netherlands-Singapore-Spain-Sweden-Switzerland-Taiwan-Thaliand-United Kingdom-U.S.A.11/11。

dds371电表说明书

dds371电表说明书一、引言dds371电表是一种先进的电力计量仪表，广泛应用于各类电力系统中。

本说明书旨在向用户介绍dds371电表的基本原理、功能特点、安装使用方法以及注意事项，帮助用户正确、高效地使用该电表。

二、基本原理dds371电表采用先进的电磁测量技术，通过测量电流和电压来计算电能消耗。

其工作原理是利用电磁感应定律，当电流通过导线时，会在周围产生磁场，通过测量感应到的磁场强度来计算电流大小。

同时，电压也会产生电场，通过测量电场强度来计算电压大小。

通过对电流和电压的测量，可以准确计算出电能消耗。

三、功能特点1. 高精确度：dds371电表采用高精度的测量芯片，能够实现对电流和电压的精确测量，保证数据的准确性。

2. 多功能显示：dds371电表配备了大屏幕液晶显示屏，可以实时显示电流、电压、功率因数、累计电能等数据，方便用户实时了解电力消耗情况。

3. 多种通信接口：dds371电表支持多种通信接口，如RS485、Modbus等，方便与上位机进行数据通信和远程监控。

4. 防护等级高：dds371电表外壳采用防护等级较高的材料制作，能够有效防止灰尘、湿气等外界因素对电表的影响，提高电表的使用寿命。

5. 高可靠性：dds371电表内部采用可靠的电路设计和稳定的元器件，能够长时间稳定工作，减少故障率。

四、安装使用方法1. 安装位置选择：dds371电表应安装在通风良好、干燥无尘的环境中，避免阳光直射和潮湿环境，以保证电表的正常工作。

2. 接线方法：在接线前，务必切断电源。

按照电表背面的接线图示进行接线，确保电流和电压的输入正确。

接线完成后，检查接线是否牢固，防止出现接触不良、松动等问题。

3. 参数设置：根据实际需求，可通过电表面板或上位机设置电表的参数，如电流互感器比例、电压互感器比例、脉冲常数等。

4. 使用注意事项：使用过程中要注意防止电表受到过大的冲击和振动，避免长时间暴露于高温环境中，以免损坏电表。

6N137 datasheet

PHOTOCOUPLEREL26XX series Features:• High speed 10Mbit/s•10kV/µs min. common mode transient immunity (EL2611)• Guaranteed performance from -40 to 85℃ • Logic gate output• High isolation voltage between input and output (Viso=5000 V rms ) • Pb free and RoHS compliant. • UL approved (No. 214129) • VDE approved (No. 132249) • SEMKO approved • NEMKO approved • DEMKO approved • FIMKO approved• CSA approved (No. 2037145)DescriptionThe 6N137, EL2601 and EL2611 are consists of an infrared emitting diode optically coupled to a high speed integrated photo detector logic gate with a strobable output.It is packaged in a 8-pin DIP package and available in wide-lead spacing and SMD options.Applications• Ground loop elimination• LSTTL to TTL, LSTTL or 5 volt CMOS • Line receiver, data transmission • Data multiplexing• Switching power supplies• Pulse transformer replacement • Computer peripheral interfaceTruth Table (Positive Logic)Input EnableOutput H H L L H H H L H L L H H NC L LNCHPin Configuration 1, No Connection 2, Anode 3, Cathode4. No Connection 5, Gnd 6, Vout 7, V E 8, V CCA 0.1µF bypass capacitor must beconnected between pins 8 and 5 *3PHOTOCOUPLER EL26XX series Absolute Maximum Ratings (T a=25°C)Parameter Symbol Rating UnitInputForward current IF50 mA Enable input voltage Not exceed V CC bymore than 500mV V E 5.5 V Reverse voltage V R 5 V Power dissipation P D100 mWOutput Power dissipation P C85 mW Output current I O50 mA Output voltage V O7.0 V Supply voltage V CC7.0 VOutput Power Dissipation P O100 mW Isolation voltage *1V ISO5000 V rms Operating temperature T OPR-40 ~ +85 °C Storage temperature T STG-55 ~ +125 °C Soldering temperature *2T SOL260 °CNotes*1AC for 1 minute, R.H.= 40 ~ 60% R.H. In this test, pins 1, 2, 3 & 4 are shorted together, and pins 5, 6, 7 &8 are shorted together.*2For 10 seconds.PHOTOCOUPLER EL26XX series Electrical Characteristics (T a=-40 to 85°C unless specified otherwise)InputParameter Symbol Min. Typ.* Max. Unit Condition Forward voltage V F- 1.4 1.8 V I F= 10mAReverse voltage V R 5.0 - - V I R = 10µA Temperature coefficient offorward voltage ∆V F/∆T A- -1.8 - mV/°C I F =10mAInput capacitance C IN- 60 - pF V F=0, f=1MHzOutputParameter Symbol Min. Typ.* Max. Unit ConditionHigh level supply current ICCH - 7 10 mAI F=10mA, V E=0.5V,V CC=5.5VLow level supply current I CCL- 9 13 mA I F=0mA, V E=0.5V, V CC=5.5VHigh level enable current I EH- - 0.6 -1.6 mA V E=0.5V, V CC=5.5V Low level enable current I EL- - 0.8 -1.6 mA V E=2.0V, V CC=5.5V High level enable voltage V EH 2.0 - - V I F=10mA, V CC=5.5V Low level enable voltage*4V EL- - 0.8 V I F=10mA, V CC=5.5VTransfer Characteristics (T a=-40 to 85°C unless specified otherwise)Parameter Symbol Min. Typ.* Max. Unit ConditionHIGH Level Output Current I OH- 2.1 100 uA V CC=5.5V, V O=5.5V, I F=250µA, V E=2.0VLOW Level Output Current VOL - 0.35 0.6 VV CC = 5.5V, I F=5mA,V E=2.0V,I CL=13mAInput Threshold Current IFT - 2.5 5 mAV CC= 5.5V, V O=0.6V,V E =2.0V,I OL=13mAPHOTOCOUPLEREL26XX series Switching Characteristics (T a =-40 to 85°C, V CC =5V, I F =7.5mA unless specified otherwise)ParameterSymbol Min. Typ.* Max. Unit ConditionPropagation delay time tooutput High level*5(Fig.12)T PHL-3575nsC L = 15pF, R L =350Ω, TA=25°C Propagation delay time tooutput Low level*6(Fig.12)T PLH - 40 75 ns C L = 15pF, R L =350Ω, TA=25°C Pulse width distortion |Tphl – Tplh|- 5 35 ns C L = 15pF, R L =350Ω Output rise time*7(Fig.12)tr - 40 - ns C L = 15pF, R L =350Ω Output fall time*8(Fig.12) tf-10-nsC L = 15pF, R L =350ΩSwitching Characteristics (T a =-40 to 85°C, V CC =5V, I F =7.5mA unless specified otherwise)PHOTOCOUPLEREL26XX series Typical Performance CurvesEL26XX seriesPHOTOCOUPLERPHOTOCOUPLEREL26XX series(VFig. 12 Test circuit and waveforms for t PHL , t PLH , t r , and t fFig. 13 Test circuit and waveform for t EHL and t ELHPHOTOCOUPLEREL26XX series Switching Pos. (B), I F =7.5mASwitching Pos. (A), I F =0CM LCM HV O (Min)V O (Max)PeakV CM0V5VVoV CM 0.5VFig. 14 Test circuit Common mode Transient ImmunityFig. 15 Recommended drive circuit for ELW2611 families for high-CMRPHOTOCOUPLER EL26XX seriesNotes:*3 The VCC supply must be bypassed by a 0.1µF capacitor or larger. This can be either a ceramic or solid tantalum capacitor with good high frequency characteristic and should be connected as close as possible to the package VCC and GND pins*4. Enable Input – No pull up resistor required as the device has an internal pull up resistor.*5. tPLH–Propagation delay is measured from the 3.75mA level on the HIGH to LOW transition of the input current pulse to the 1.5 V level on the LOW to HIGH transition of the output voltage pulse.*6. tPHL–Propagation delay is measured from the 3.75mA level on the LOW to HIGH transition of the input current pulse to the 1.5 V level on the HIGH to LOW transition of the output voltage pulse.*7. tr–Rise time is measured from the 90% to the 10% levels on the LOW to HIGH transition of the output pulse.*8. tf–Fall time is measured from the 10% to the 90% levels on the HIGH to LOW transition of the output pulse.*9. tELH–Enable input propagation delay is measured from the 1.5V level on the HIGH to LOW transition of the input voltage pulse to the 1.5V level on the LOW to HIGH transition of the output voltage pulse.*10. tEHL–Enable input propagation delay is measured from the 1.5V level on the LOW to HIGH transition of the input voltage pulse to the 1.5V level on the HIGH to LOW transition of the output voltage pulse.*11 CMH– The maximum tolerable rate of rise of the common mode voltage to ensure the output will remain in the HIGH state (i.e., VOUT > 2.0V).*12 CML– The maximum tolerable rate of rise of the common mode voltage to ensure the output will remain in the LOW output state (i.e., VOUT < 0.8V).Order InformationPart Number6N137Y(Z)-VOrEL26XXY(Z)-VNoteX = (01 or 11) for EL26 part no.Y = Lead form option (S, S1, M or none)Z = Tape and reel option (TA, TB or none).V = VDE (optional)Option Description Packing quantity None Standard DIP-8 45 units per tubeM Wide lead bend (0.4 inch spacing) 45 units per tubeS (TA) Surface mount lead form + TA tape & reel option 1000 units per reelS (TB) Surface mount lead form + TB tape & reel option 1000 units per reelS1 (TA) Surface mount lead form (low profile) + TA tape & reel option 1000 units per reelS1 (TB) Surface mount lead form (low profile) + TB tape & reel option 1000 units per reelPHOTOCOUPLEREL26XX seriesPackage Drawing(Dimensions in mm)Standard DIP TypeOption M Type8 PIN DIP HIGH SPEED 10MBit/s LOGIC GATE PHOTOCOUPLEROption S Type6N137 EL26XX seriesOption S1 TypeEverlight Electronics Co., Ltd. Document No DPC-0000120 Rev. 211 November 2, 2011：8 PIN DIP HIGH SPEED 10MBit/s LOGIC GATE PHOTOCOUPLERRecommended pad layout for surface mount leadform6N137 EL26XX seriesDevice MarkingEL6N137YWWVNotes 6N137 Y WW V denotes Device Number denotes 1 digit Year code denotes 2 digit Week code denotes VDE (optional)Everlight Electronics Co., Ltd. Document No DPC-0000120 Rev. 212 November 2, 2011：8 PIN DIP HIGH SPEED 10MBit/s LOGIC GATE PHOTOCOUPLERTape & Reel Packing SpecificationsOption TA6N137 EL26XX seriesOption TBDirection of feed from reelDirection of feed from reelTape dimensionsDimension No. Dimension(mm) Dimension No. Dimension(mm)A 10.4±0.1 Po 4.0±0.1B 10.0±0.1 P1 12.0±0.1Do 1.5±0.1 P2 2.0±0.1D1 1.5±0.1 t 0.4±0.1E 1.75±0.1 W 16.0+0.3/ -0.1F 7.5±0.1 K 4.5±0.1Everlight Electronics Co., Ltd. Document No DPC-0000120 Rev. 213 November 2, 2011：8 PIN DIP HIGH SPEED 10MBit/s LOGIC GATE PHOTOCOUPLERSolder Reflow Temperature Profile6N137 EL26XX series260 °C (peak,10 Sec)>255 °C ( 30s Max ) 217° ° 200° ° 150° ° 60 – 120 Sec 1-3 °C/Sec TIME (S) 1-3 °C/Sec 60 – 100 SecEverlight Electronics Co., Ltd. Document No DPC-0000120 Rev. 214 November 2, 2011：8 PIN DIP HIGH SPEED 10MBit/s LOGIC GATE PHOTOCOUPLERDISCLAIMER6N137 EL26XX series1. Above specification may be changed without notice. EVERLIGHT will reserve authority on material change for above specification. 2. When using this product, please observe the absolute maximum ratings and the instructions for using outlined in these specification sheets. EVERLIGHT assumes no responsibility for any damage resulting from use of the product which does not comply with the absolute maximum ratings and the instructions included in these specification sheets. 3. These specification sheets include materials protected under copyright of EVERLIGHT corporation. Please don’t reproduce or cause anyone to reproduce them without EVERLIGHT’s consent.Everlight Electronics Co., Ltd. Document No DPC-0000120 Rev. 215 November 2, 2011：。

CN3717充电管理芯片在电子衡器中的应用

CN3717充电管理芯片在电子衡器中的应用浙江蓝箭称重技术有限公司郑文广,何文[摘要]C N3717芯片由于采用了单芯片技术,属于PW M降压模式铅酸电池充电管理集成电路,可独立对铅酸电池充电并进行自动管理,具有封装外形小,外围分立元件极少和使用简单等优点。

宽的输入电压范围,对铅酸电池进行完整的充电管理,过充电和浮充电电压由外部电阻分压网络设置,充电电流可达5A,恒流充电电流由外部电阻设置,对深度放电的电池进行涓流充电。

过充点结束电流由外部电阻设置,电池温度监测功能、自动再充电功能、双状态指示及软启动功能、电池端过压保护等,芯片采用T SSO P封装,产品无铅,无卤素元素,满足R oH S要求。

自身功耗极低和性价比高的特点,使得该芯片在衡器产品中的应用将会越来越广泛。

[关键词]单芯片;充电管理;电子衡器[中图分类号]T H715.1[文献标识码]B[文章编号]1003-5729(2018)09-0011-03A ppl i cat i on of C N3717chargi ng m anagem ent chi p i n el ect roni c w ei ghi ng i nst rum entA rt i cl e abs t ract:Because of t he use of si ngl e chi p t echnol ogy,C N3717chi p bel ongs t o t he char ge m anagem ent i nt egr at ed ci r cui t of PW M depr es sur i zat i on m ode l ead-aci d bat t er y.I tcan char ge and m anage t he l ead-aci d bat t er y i ndependent l y.I t has t he advant ages of s m al lpackage shape,f ew per i pher alcom ponent s and s i m pl e us e.The w i de i nputvol t age r ange pr ovi des a com pl et e char ge m anagem ent f or t he l ead-aci d bat t er y.The over char ge and t he f l oat i ng char ge vol t age ar e set by t he ext er nal r es i s t ance vol t age di vi der net wor k,t he char gi ng cur r ent can r each5A.The cur r ent char ge cur r ent i s s et by t he ext er nal r es i st ance,and t he bat t er y of t he deep di s char ge i s char ged by t he t r i ckl e char ge.The over char ge end cur r ent i s set by ext er nal r es i s t ance,bat t er y t em per at ur e m oni t or i ng f unct i on, aut om at i c r echar gi ng f unct i on,dual s t at e i ndi cat i on and s of t s t ar t f unct i on,bat t er y end over vol t age pr ot ect i on.The chi p i s packaged i n TSSO P,t he pr oduct i s l ead-f r ee,and t he hal ogen f r ee el em ent can m eet t he r equi r em ent s of R oH S.Because of i t s l ow pow er cons um pt i on and hi gh cos tper f or m ance,t he chi p wi l lbe m or e and m or e wi del y used i n wei ghi ng appar at us pr oduct s.K ey w ords:s i ngl e chi p;char ge m anagem ent;el ect r oni c wei ghi ng devi ce1引言随着电子技术的迅速发展,集成电路在电子衡器领域得到了广泛的应用。

CW1274 Datasheet说明书

CW1274 4~7节电池保护IC功能特性●过充电保护•阈值范围3.650V、3.850V、4.175V~4.350V，25mV步进，±25mV精度●过放电保护•阈值范围2.300V~2.800V，100mV步进，±30mV精度●放电过流保护•过流检测1阈值范围0.050V~0.100V，±5mV精度•过流检测2阈值范围0.100V~0.200 V，，±10mV精度•短路保护阈值范围0.200V~0.500V，±20mV精度●充电过流保护•阈值范围-0.010V~-0.050V，±5mV精度●温度检测功能充放电高低温保护，温度外部可设●均衡功能●断线检测功能●负载检测功能●级联功能●低功耗设计•工作状态20μA (25°C)•休眠状态5μA (25°C)●封装形式：SSOP24应用领域●吸尘器●电动工具●电动自行车●后备电源●锂离子及锂聚合物电池包基本描述CW1274系列产品是一款高度集成的4~7串锂离子电池或锂聚合物电池保护芯片。

CW1274为电池包提供过充、过放、充放电过流、断线、充放电过温保护以及均衡功能，并支持芯片级联使用。

CW1274 典型应用框图CW1274产品选择指南CW1274 X X X X封装形式，S: SSOP24参数类型，从A到Z电池类型，L:代表锂离子电池F:代表磷酸铁锂电池功能和版本信息，从A 到Z产品目录CW1274 引脚排列图CW1274CW1274 绝对最大额定值注意：绝对最大额定值是指无论在任何条件下都不能超过的额定值。

如果超过此额定值，有可能造成产品损伤。

ESD等级额定工作电压CW1274电气特性除特殊说明外T A=25°CCW1274*2充放电温度保护温度取决于不同电阻的设定，放电低温保护温度默认为充电过温保护温度-20℃，即充电低温保护温度为0℃，则放电低温保护温度为-20℃*3所有过电流保护（包括过流1，过流2和短路保护）解除延迟时间均为60msCW1274原理框图CW1274 功能描述正常状态所有电池电压处于过充检测电压（V OC）和过放检测电压（V OD）之间，且CS端子电压处于过流检测电压（V EC1）和充电过流检测电压（V COC）之间时，CW1274处于正常工作状态。

SQT-103-01-F-D;SQT-106-01-LM-D;SQT-110-03-F-D;SQT-120-01-F-S;中文规格书,Datasheet资料

SPECIFICATIONS
For complete speciﬁcations see ?SQT
Mates with: TMMH, TMM, MTMM, MMT, TW, LTMM, ZLTMM, ESQT, TCMD
Choice of one through six rows
SQT-106-01-LM-D SQT-112-01-F-D SQT-110-01-L-Q
SQT-110-03-F-D SQT-107-01-L-T SQT-125-01-F-D
(2,29) .050 .090
(2,00) .0787
–RA OPTION
(–Q, –5 & –6 not available)

/
分销商库存信息:
SAMTEC SQT-103-01-F-D SQT-120-01-F-S SQT-110-01-LM-Q SQT-116-01-S-D
TMM/ SQT TMMH
HORIZONTAL
(2,00mm) .0787" pitch
1
NO. PINS PER ROW
LEAD STYLE
(6,35mm) .250"
PLATING OPTION
ROW OPTION
Note: Some lengths, styles and options are non-standard, non-returnable.
20°C
5.5A
(2,62mm) .103" to (5,03mm) .198" Insertion Force: (Single contact only)
40°C
5A
60°C

AS3711-BQFP;中文规格书,Datasheet资料

AS3711High Current Power Management Unit for Portable DevicesP ro d uc t B ri ef1 General DescriptionThe AS3711 is a compact System PMU with integrated battery charger and back light driver.The device offers advanced power management func-tions. All necessary ICs and peripherals in a battery powered mobile device are supplied by the AS3711. It features 3 DCDC buck converters (4MHz), one buck controller as well as 8 low noise LDOs. The supply volt-ages are programmable via the serial control interface.The three step-up converter generate voltages fore.g.the backlight, classD amplifier, USB host support or LCD display supply. Both constant voltage (for e.g. OLED supply) as well as constant current (white LED backlight) operations with three current sinks are possi-ble. An internal voltage protection is limiting the output voltage in the case of external component failures.AS3711 contains a linear or switching mode Li-Ion bat-tery charger with constant current and constant voltage. The maximum charging current is 1.5A. An integrated battery switch and an optional external switch are sepa-rating the battery during charging or whenever an exter-nal power supply is present. With this switch it is also possible to operate with no or deeply discharged batter-ies. A programmable current limit can be used to control the maximum current used from a USB supply. Addi-tional features are a 30V OV protection and battery tem-perature supervision.The single supply voltage may vary from 2.7V to 5.5V.2 Key FeaturesPower ManagementVoltage Generation⏹ 4 DCDC step down regulators-DVM (0.6V-3.3V;1x 1.2-1.5A, 2x 0.7-1A)-controller mode for 2-3A supplies -50uA quiescent current-selectable switching frequency (4, 3 or 2MHz)-2A with combined DCDC 2 & 3⏹ 2 analog low noise LDOs, 6 digital LDOs-2x 1.2-3-3V, 6x 0.9-3.3V; 150-300mA-30uA quiescent current (low power mode)⏹ 1 ultra low power always on LDO 2.5V, 10mA ⏹ power supply supervision⏹ 4sec and 8sec emergency shut-down ⏹ hibernation functionHV Backlight Driver⏹ 2x step up with external transistor⏹ voltage control mode and over-voltage protection ⏹ 3 programmable current sinks (max. 40mA)⏹ e.g. 500mA@5V; 40mA@50V⏹ possible external PWM dimming input (DLS, CABC)Battery Charger⏹ prog. trickle charging (25-220mA)⏹ prog. constant current charging (up to 1500mA)⏹ prog. constant voltage charging (3.9V-4.25V)⏹ charger time-out and temperature supervision ⏹ selectable current limitation for USB mode⏹ integrated battery switch & ideal diode (linear mode)⏹ external battery switch control (switching mode)⏹ external 30V OV protectionGeneralSupervisor⏹ automatic battery monitoring with interrupt genera-tion and selectable warning level⏹ automatic temperature monitoring with interruptgeneration and selectable warning and shutdown levelsReal Time Clock⏹ ultra low power 32kHz oscillator ⏹ sec and minute counter, auto wake-up ⏹ selectable alarm (seconds or minutes)⏹ 32kHz clock output to peripheral ⏹ <1uA total power consumption4 General Purpose IOs⏹ 10bit general purpose ADC input ⏹ wake-up/sleep and DVM input ⏹ PWM (DLS, CABAC) dimming input⏹ status output for: charger, low battery, power goodand step-up overcurrent⏹ Q32k clock output ⏹ interrupt output ⏹ PWM output⏹ step-up feedback inputProduct BriefOTP programmable BOOT Sequence ⏹ programmable regulator default voltages ⏹ programmable start-up sequence General Purpose ADC⏹ 10bit resolution⏹ several internal / external sources-VUSB, VSUP, CHGIN, VBAT-GPIOx, CURRx-XOUT32K, SENSEN_SU1-chip temperatureFigure 1. AS3711 Block Diagram Control Interface⏹ I2C control lines, including watchdog⏹ Power-Up input⏹ bidirectional reset, with selectable delay⏹ ultra low power standby modePower-On Reset CircuitPackagingQFN56 7x7mm 0.4mm pitchApplicationPortable Media Players, Portable Navigation Devices,E-Books, Mobile Internet Devices, Tablet PCsProduct Brief - Ke y F e at u re sCopyrightCopyright © 2011, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trade-marks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.All products and companies mentioned are trademarks or registered trademarks of their respective companies. DisclaimerDevices sold by austriamicrosystems AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. austriamicrosystems AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. austria-microsystems AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with austriamicrosystems AG for current informa-tion. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by austriamicrosystems AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location.The information furnished here by austriamicrosystems AG is believed to be correct and accurate. However, austriamicrosystems AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the tech-nical data herein. No obligation or liability to recipient or any third party shall arise or flow out of austriamicrosystems AG rendering of technical or other services.Contact InformationHeadquartersaustriamicrosystems AGA-8141 Schloss Premstaetten, AustriaTel: +43 (0) 3136 500 0Fax: +43 (0) 3136 525 01For Sales Offices, Distributors and Representatives, please visit:/contact分销商库存信息: AMSAS3711-BQFP。

X67DI1371数字输入模块数据表 V3.23说明书

X67DI13711 General informationThe module is a digital input module for 24 VDC. It has 8 inputs for sink input circuits.■For all standard sensors with M8 connectors■Extremely short cycle times■Integrated sensor supply with short circuit protection2 Order dataTable 1: X67DI1371 - Order data3 Technical dataTable 2: X67DI1371 - Technical dataTable 2: X67DI1371 - Technical data1)The power consumption of the sensors and actuators connected to the module is not permitted to exceed 12 W.4 LED status indicatorsStatus indicator 2:Left: green; Right: red5 Connection elementsDigital inputs 1 to 8X2X LinkConnector A: Input Connector B: Output24 VDC I/O power supply Connector C: SupplyConnector D: Pass through6 X2X LinkThis module is connected to X2X Link using pre-assembled cables. The connection is made using M12 circular connectors.1137 24 VDC I/O power supplyThe I/O power supply is connected via M8 connectors C and D. The I/O power supply is connected via connector C (male). Connector D (female) is used to route the I/O power supply to other modules.Information:The maximum permissible current for the I/O power supply is 8 A (4 A per connection pin)!338 PinoutX67CA0D40.xxxx:M8 sensor cable, straight①X67CA0D50.xxxx:M8 sensor cable, angled8.1 Connections X1 to X81343419 Connection example10 Input circuit diagram11 Register description11.1 General data pointsIn addition to the registers listed in the register description, the module also has other more general data points. These registers are not specific to the module but contain general information such as serial number and hardware version.These general data points are listed in section "Additional information - General data points" of the X67 system user's manual.11.2 Function model 0 - Standard11.3 Function model 254 - Bus controller1)The offset specifies the position of the register within the CAN object.11.3.1 Using the module on the bus controllerFunction model 254 "Bus controller" is used by default only by non-configurable bus controllers. All other bus controllers can use additional registers and functions depending on the fieldbus used.For detailed information, see section "Additional information - Using I/O modules on the bus controller" of the X67 user's manual (version 3.30 or later).11.3.2 CAN I/O bus controllerThe module occupies 1 digital logical slot on CAN I/O.11.4 Digital signal - Communication11.4.1 Digital inputsFilteredThe filtered status is collected with a fixed offset to the network cycle and transferred in the same cycle.11.4.1.1 Input state of digital inputs 1 to 8Name:DigitalInput01 to DigitalInput08This register indicates the input state of digital inputs 1 to 8.Bit structure:11.4.2 Reading the module IDName:asy_ModulIDThis register offers the possibility to read the module ID.11.5 Minimum cycle timeThe minimum cycle time specifies the time up to which the bus cycle can be reduced without communication errors occurring. It is important to note that very fast cycles reduce the idle time available for handling monitoring, diagnostics and acyclic commands.11.6 Minimum I/O update timeThe minimum I/O update time defines how far the bus cycle can be reduced while still allowing an I/O update to take place in each cycle.。

E-PBL3717A;中文规格书,Datasheet资料

No Current Low Current Medium Current High Current
2/11 /
BLOCK DIAGRAM
PBL3717A
ABSOLUTE MAXIMUM RATINGS
Symbol Vs Vss Vi Vc Vr Io Tstg Tj
/
Value
Unit
50
V
7
V
6
V
Vss
15
V
1.2
A
– 55 to + 150
°C
150
°C
Value 11 40
Unit °C/W °C/W
3/11
PBL3717A
ELECTRICAL CHARACTERISTICS (refer to the test circuit VS = 36V, VSS = 5V, Tamb = 25oC unless otherwise specified)
PBL3717A
STEPPER MOTOR DRIVER
Powerdip 12 + 2 + 2 (Plastic Package)
ORDER CODE : PBL3717A
DESCRIPTION
The PBL3717A is a monolithic IC which controls and drives one phase of a bipolar stepper motor with chopper control of the phase current. Current levels may be selected in three steps by means of two logic inputs which select one of three current comparators. When both of these inputs are high the device is disabled. A separate logic input controls the direction of current flow.

LTC3787_datasheet

ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3787EUFD#PBF
LTC3787EUFD#TRPBF 3787
28-Lead (4mm × 5mm) Plastic QFN
100pF 0.1μF
4mΩ
47μF
3.3μH
VOUT 24V AT 10A
220μF
3787 TA01a
EFFICIENCY (%)
POWER LOSS (mW)
Efficiency and Power Loss vs Output Current
100
10000
90
80
1000
70
60
100
50
3787fc
1
LTC3787
ABSOLUTE MAXIMUM RATINGS (Notes 1, 3)
VBIAS ........................................................ –0.3V to 40V BOOST1 and BOOST2 ................................ –0.3V to 76V SW1 and SW2............................................ –0.3V to 70V RUN ............................................................. –0.3V to 8V

CN3717_5A开关模式磷酸铁锂电池充电IC

5A铅酸电池充电管理集成电路CN3717应用电路图1、简介CN3717是可以对铅酸电池进行恒流/恒压充电的充电器电路。

该芯片是PWM降压模式铅酸电池充电管理集成电路，独立对铅酸电池充电进行全面自动管理，具有封装外形小，外围元器件少和使用简单等优点，非常适合便携式应用领域。

2、特点●宽输入电压范围：7.5V 到28V●对铅酸电池进行完整的充电管理●过充电和浮充电电压由外部电阻分压网络设置●充电电流达5A●PWM开关频率：300KHz●恒流充电电流由外部电阻设置●对深度放电的电池进行涓流充电●过充点结束电流由外部电阻设置●电池温度监测功能●自动再充电功能●双状态指示●软启动功能●电池端过压保护●工作环境温度：－40℃ 到＋85℃●采用16管脚TSSOP 封装●产品无铅，无卤素元素，满足RoHS3、应用●铅酸电池充电●不间断电源●备用电池应用●便携式工业和医疗仪器●独立电池充电器典型应用电路1使用温度监控功能，充电显示和充电结束显示。

①输入电源VCC的选择：CN3717是降压型铅酸电池充电管理，所以输入电压要比输出电压高，一般情况下，比串联的充电电池电压高2V为宜，但是最高不能超过28V。

②电容的选择：输入输出电容可根据具体电路的纹波系数选择，如果电路的纹波比较大，应当选择一个大一点的电容，纹波比较小，选择一个比较小的电容，一般情况下选择50V10uF即可，电解电容为宜；C2，C3，C4，C5都为陶瓷电容，选择应用电路图中的数值即可。

C7也为陶瓷电容，数值满足公式：C7=8×(R6/R7)(pF)。

③PMOS管M1的选择：一般情况下当充电电流小于2.5A时，选择AO3407A；当充电电流为2.5A—5A时，选择SI4435DY。

④肖特基二极管D1和D2的选择：一般情况下当充电电流小于2.5A时，选择30BQ015；当充电电流为2.5A—5A时，选择50WQ03FN。

⑤电感L的选择：如下表所示。

3577;中文规格书,Datasheet资料

PC QUICK-FIT FEMALE TERMINALSACCEPTS .110(2.8)TABVERTICAL ENTRYVERTICAL ENTRYACCEPTS .187(4.8)TABVERTICAL ENTRYACCEPTS .110(2.8)TAB HORIZONTAL ENTRYACCEPTS .187(4.8),.205(5.2),.250(6.4)TABSACCEPTS .110(2.8)×.032(.81)TABHORIZONTAL ENTRYMounting DetailMATERIAL:.012(.30)Brass,Tin-Nickel PlateMounting DetailMATERIAL:.016(.41)Brass,Tin-Nickel PlateMATERIAL:Brass,Tin-Nickel PlateMounting DetailMounting DetailMATERIAL:.016(.41)Brass,Tin-Nickel Plate CAT.NO.ACCEPTS TAB 3525.205(5.2)×.020(.51)3575.205(5.2)×.032(.81)CAT.NO.ACCEPTS TAB 3528.250(6.4)×.032(.81).400[10.1].046[1.15] DIA..076[1.9] DIA..400[10.1].067[1.70]DIA..104[2.6]DIA..146[3.7].232[5.9]W (Ref).420[10.7].150[3.8].050[1.25].200[5.1].200[5.1].052[1.30]DIA.CAT.NO.ACCEPTS TAB 3545.110(2.8)×.020(.51)3549.110(2.8)×.032(.81).212[5.4].062[1.55].100[2.5].075[1.90].400[10.2].040[1.00].070[1.80].156[4.0].280[7.1].070 [1.80].125 [3.2].281 [7.1].437[11.1].076[1.90].271 [6.9].120 [3.0].250[6.3]Tel (718)956-8900•Fax (718)956-9040(800)221-5510•kec@31-0720th Road –Astoria,NY 11105-2017RoHS COMPLIANT ~ISO 9001CERTIFIED®Mounting Detail.200[5.1].100[2.54]DIA.Mounting Detail.200[5.1].089[2.3]Mounting Detail.328[8.35].152[3.86]DIA.MATERIAL:.016(.41)Brass,Tin-Nickel PlateACCEPTS .205(5.2)TAB VERTICAL ENTRYACCEPTS .250(6.4)TABCAT.NO.ORIENTATION 3557top &side entry 3577bottom &side entryMATERIAL:.016(.41)Brass,Tin-Nickel PlateMATERIAL:.020(.51)Copper,Tin-Nickel PlateACCEPTS ALL TABS.110(2.8)TO.250(6.4)×.020(.50)TO.032.(.80)VERTICAL OR HORIZONTAL ENTRYSMT -HORIZONTAL ENTRYSMT -VERTICAL OR HORIZONTAL ENTRYACCEPTS .312(7.9)TABOVER SIZED.032[0.8].062[1.6].400[10.2].134[3.4].150[3.8].150[3.8].185[4.7]Underwriters Laboratories,Inc.Recognized Component Program —UL File Number E201546CAT.MATL NO.ACCEPTS TAB “W”“A”THICK 3571.187(4.8)×.020(.51).222(5.6).162(4.1).012(.30)3572.187(4.8)×.032(.81)3546.205(5.2)×.020(.51).240(6.1).180(4.6).012(.30)3550.205(5.2)×.032(.81)3547.250(6.4)×.032(.81).291(7.4).205(5.2).016(.41).392[10.0].180[4.6].422[10.7].375[9.5].109[2.8].106[2.7].578[14.7].180[4.6].144[3.7].065[1.30]DIA.Mounting Detail Cat.No.3557.134[3.4].067[1.7]DIA.(2)PLS.Mounting Detail Cat.No.3577.067[1.7]DIA.(2)PLS.TERMINAL CLEARENCE.040[1.0].134[3.4].062[1.6].212[5.4].062[1.55]W.100[2.5]A.098[2.5].400[10.2].062[1.55].250[6.4]MATERIAL:.012(.30)Brass,Tin-Nickel Plate.050[1.3].125[3.2].281[7.1].437[11.1].091[2.3].291[7.4].110[2.8].250[6.3].086[2.2].062[1.55]W (Ref).440[11.2].156[4.0].144[3.7].125[3.2].196[5.0]CAT.NO.ACCEPTS TAB W 3534.110(2.8)×.020(.51).070(1.80)3544.110(2.8)×.032(.81).075(1.92).312[7.9].090[2.3].250[6.4].100[2.54].075[1.9].105[2.7].156[4.0].150[3.8].242[6.2].282[7.2].062[1.6].100[2.5].185[4.7].250[6.4].176[4.5].067[1.7].252[6.4].067[1.7]TYP..105[2.7]Mounting Detail.100[2.6].105[2.7].312[7.9]Mounting DetailSPECIFICATIONSMaterial:.012(.30)Brass,Tin-Nickel Plate Current Rating:15Amps @500V ACSPECIFICATIONSMaterial:.016(.40)Brass,Tin-Nickel Plate Current Rating:15Amps @500V ACTape &Reel Spec’s:16mm wide,12mm pitch,13inch reel (750pieces per reel)*Low insertion force designTape &Reel Spec’s:24mm wide,8mm pitch,13inch reel (2000pieces per reel)CAT.NO.ACCEPTS TAB “W”3548.187(4.8)×.020(.51).093(2.36)3578*.187(4.8)×.020(.51).093(2.36)3551.187(4.8)×.032(.81).102(2.59)CAT.NO.3569(Bulk)CAT.NO.3569TR (Tape &Reel)CAT.NO.3586TR (Tape &Reel)CAT.NO.3586(Bulk)FEMALE PC QUICK-FIT TERMINALS55ACCEPTS ALL TABS.110(2.8)TO.250(6.4)×.020(.50)TO.032.(.80)CAT.NO.ACCEPTS TAB3555.312(7.9)×.032(.81)35573577/分销商库存信息: KEYSTONE-ELECTRONICS 3577。