Photovoltaic MOSFET Driver with Integrated Fast Turn-Off ...

1 Semiconductors Rev. , 07-Jan-141 Document Number: 83469 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT MOSFET Driver with Integrated Fast Turn-Off , Solid-State RelayDESCRIPTIONThe VOM1271 is a stand-alone optically isolated MOSFET Driver . Unlike conventional MOSFET drivers , which require an external power supply to provide VCC and or VDD rails to the Driver itself, the VOM1271 obtains all the required current to drive its internal circuitry from the LED current on the low voltage primary side of the isolation barrier. This saves the designer the space and cost associated with providing one or more external power supplies.

2 The VOM1271 also integrates a Turn-Off circuit internal to the component itself, thus doing away with the need for additional components in order to increase the overall switching speed by decreasing the Turn-Off time. These features, combined with a small SOP4 package, provide designers with a small footprint, highly Integrated isolated gate Driver solution for a large variety of MOSFET drive Open circuit voltage at IF = 10 mA, V typical Short circuit current at IF = 10 mA, 15 A typical Isolation test voltage 4500 VRMS Logic compatible input High reliability Integrated rapid Turn-Off circuitry Material categorization.

3 For definitions of compliance please see APPLICATIONS High-side Driver Solid-state relays Floating power supply Power control Data acquisition ATE Isolated solenoid drivers Isolated high current relay drivers Isolated high voltage relay driversAGENCY APPROVALSThe safety application model number covering all products in this datasheet is VOM1271. This model number should be used when consulting safety agency documents. UL1577 cUL, equivalent to CSA bulletin 5A FIMKO EN 60950-1 SAFETY AGENCY COMPLIANCEP lease see document: For additional information on the available options refer to option information. The product is available only on tape and r nOffi179066_6 ORDERING INFORMATIONVOM1 2 7 1 T PART NUMBERTAPEANDREELPACKAGEUL, cUL, Semiconductors Rev.

4 , 07-Jan-142 Document Number: 83469 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute maximum ratings for extended periods of the time can adversely affect reliability.(1)Refer to reflow profile for soldering conditions for surface mounted devices (SOP).Note Minimum and maximum values are testing requirements.

5 Typical values are characteristics of the device and are the result of engineering evaluations. Typical values are for information only and are not part of the testing requirements. Fig. 1 - ton, toff Test Circuit and WaveformsABSOLUTE MAXIMUM RATINGS (Tamb = 25 C, unless otherwise specified)PARAMETERTEST CONDITIONSYMBOLVALUEUNITSSRLED input ratings continous forward currentIF50mALED input ratings reverse voltageIR 10 AVR5 VAmbient operating temperature rangeTamb- 40 to + 100 CStorage temperature rangeTstg- 40 to + 125 CPin soldering temperature (1)t 10 s CIsolation test voltage between emitter and detectort = 1 sVISO4500 VRMSELECTRICAL CHARACTERISTICS (Tamb = 25 C, unless otherwise specified)

6 PARAMETERTEST forward voltageIF = 10 circuit voltageIF = 5 = 10 = 20 = 30 circuit currentIF = 5 AIF = 10 AIF = 20 AIF = 30 ASWITCHING CHARACTERISTICS (Tamb = 25 C, unless otherwise specified)PARAMETERTEST timeCL = 200 pF, IF = 20 mA,PW = 2 ms, duty cycle = 50 %ton53 sTurn-off timetoff24 s1243IF10 M TurnOFF200 pFVOC, ISCVOM1271 TOutput10 %90 % Semiconductors Rev. , 07-Jan-143 Document Number: 83469 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT CHARACTERISTICS (Tamb = 25 C, unless otherwise specified) Fig. 2 - Output Open Circuit Voltage vs.

7 LED Current Fig. 3 - Output Short-Circuit Current vs. Ambient Temperature Fig. 4 - Output Open Circuit Voltage vs. Ambient Temperature Fig. 5 - ton, toff vs. LED CurrentSAFETY AND INSULATION RATINGSPARAMETERTEST classification (according to IEC 68 part 1)IEC 68 part 140/100/21 Comparative tracking indexInsulation group IIIaCTI175399 Transient overvoltageVIOTM6000 VRecurring peak voltageVIORM630 VPackage safety powerPSO350mWPackage safety currentISI150mAPackage safety temperatureTSI175 CCreepage distance5mmClearance distance5mm0 10 0204050 VOC vs. IF (V)IF (mA)9876543211030RL = 1 M RL = 500 k 1535455250 60 - 40040100 ISC ( A)Ambient Temperature ( C)5040302010- 20206080IF = 30 mAIF = 5 mAIF = 10 mA4 12- 40040100 VOC (V)Ambient Temperature ( C)1086- 202060IF = 30 mAIF = 5 mA80IF = 10 mA119750 600 0102050ton, toff ( s)IF (mA) Semiconductors Rev.

8 , 07-Jan-144 Document Number: 83469 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT Fig. 6 - LED Reverse Current vs. Reverse Voltage Fig. 7 - LED Forward Voltage vs. LED Forward Current Fig. 8 - Short Circuit Output Current Circuit Output VoltageAPPLICATION DESCRIPTIONF igure 8 illustrates a standard isolated MOSFET Driver such as vishay s VO1263. Though these parts are generally capable of supplying higher output current, they lack Integrated fast Turn-Off circuitry. Thus, if high Turn-Off speed is required. external circuitry needs to be provided, as illustrated in figure 9 illustrates the ability to do away with external Turn-Off circuitry with the VOM1271, by taking advantage of the VOM1271 s Integrated Turn-Off circuitry.

9 Fig. 9 - Typical MOSFET Driver Application without Integrated Fast Turn-Off0 20222425IR ( A)VR (V) C0 0102050VF (V)IF (mA) C0 C25 C0 10 20 30 40 50 60 70 80 0 1 2 3 4 5 6 7 8 9 10 ISC - Short Circuit Output Current ( A) VOC - Open Circuit Output Voltage (V) IF = 45 mAIF = 5 mAIF = 15 mAIF = 35 mAIF = 25 mAP-channelJFET2 M Channel 1control Switch 1N-channelMOSFETs+ Semiconductors Rev. , 07-Jan-145 Document Number: 83469 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT Fig. 10 - Typical MOSFET Driver Applications with Integrated Fast Turn-OffPACKAGE DIMENSIONS in millimetersPACKAGE MARKING (example)Bidirectional MOSFET Driver Application Single MOSFET Driver Application1243+-VOM1271 TURNOFF1243+-TURNOFFVOM1271M1271V YWW68 Pin One Semiconductors Rev.

10 , 07-Jan-146 Document Number: 83469 For technical questions, contact: DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT AND REEL PACKAGINGD imensions in millimeters Fig. 11 - Tape and Reel Shipping Medium(EIA-481, revision A, and IEC 60286), 2000 units per reel Fig. 12 - Tape DimensionsESD stickerTape slotin core330(13")Regular, specialor bar code + Disclaimer Revision: 08-Feb-171 Document Number: 91000 Disclaimer ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.