vom1271 www.vishay.com vishay semiconductors rev. 1.3, 29-aug-12 1 document number: 83469 for technical ques tions, contact: optocoupleranswe rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 photovoltaic mosfet driver with integrated fast turn-off, solid-state relay description the vom1271 is a stand-alone optically isolated mosfet driver. unlike conventional mo sfet drivers, which require an external power supply to provide v cc and or v dd rails to the driver itself, th e 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 exte rnal power supplies. the vom1271 also integrates a turn-off circuit internal to the component itself, thus doing away with the need for additional components in orde r 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 applications. features ? open circuit voltage at i f = 10 ma, 8.4 v typical ? short circuit current at i f = 10 ma, 15 a typical ? isolation test voltage 4500 v rms ? logic compatible input ? high reliability ? integrated rapid turn-off circuitry ? material categorization: for definitions of compliance please see www.vishay.com/doc?99912 applications ? high-side driver ?solid-state relays ? floating power supply ? power control ? data acquisition ?ate ? isolated solenoid drivers ? isolated high curre nt relay drivers ? isolated high voltage relay drivers agency approvals ? ul1577 ? cul, equivalent to csa bulletin 5a ? fimko en 60950-1 safety agency compliance please see document: www.vishay.com/doc?83743 note ? for additional information on the available options refer to opti on information. the product is available only on tape and ree l. 4 3 1 2 tur n off i179066_6 ordering information vom1 2 7 1 t part number tape and reel package ul, cul, fimko sop-4 VOM1271T 7.21 mm s op-4
vom1271 www.vishay.com vishay semiconductors rev. 1.3, 29-aug-12 2 document number: 83469 for technical ques tions, contact: optocoupleranswe rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 notes ? stresses in excess of the abso lute maximum ratings can cause permanent damage to the device. functional operation of the devic e is not implied at these or any other conditions in excess of those give n in the operational sections of this document. exposure to abs olute 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. typical valu es are characteristics of the device and are the result of en gineering evaluations. typical values are for information only and are not part of the testing requirements. fig. 1 - t on , t off test circuit and waveforms absolute maximum ratings (t amb = 25 c, unless otherwise specified) parameter test condition symbol value unit ssr led input ratings continous forward current i f 50 ma led input ratings reverse voltage i r 10 a v r 5v ambient operating temperature range t amb - 40 to + 100 c storage temperature range t stg - 40 to + 125 c pin soldering temperature (1) t 10 s max. t sld 260 c isolation test voltage between emitter and detector t = 1 s v iso 4500 v rms electrical characteristics (t amb = 25 c, unless otherwise specified) parameter test condition symbol min. typ. max. unit led forward voltage i f = 10 ma v f 1.2 1.4 1.6 v open circuit voltage i f = 5 ma v oc 8.1 v i f = 10 ma v oc 7.8 8.4 v i f = 20 ma v oc 8.7 v i f = 30 ma v oc 8.9 v short circuit current i f = 5 ma i sc 7.0 a i f = 10 ma i sc 6.0 15.0 a i f = 20 ma i sc 30.0 a i f = 30 ma i sc 47.0 a switching characteristics (t amb = 25 c, unless otherwise specified) parameter test condition symbol min. typ. max. unit turn-on time c l = 200 pf, i f = 20 ma, p w = 2 ms, duty cycle = 50 % t on 53 s turn-off time t off 24 s 1 2 4 3 i f 10 m turn off 200 pf v oc , i s c VOM1271T input output 10 % 90 % t on t off 2 ms
vom1271 www.vishay.com vishay semiconductors rev. 1.3, 29-aug-12 3 document number: 83469 for technical ques tions, contact: optocoupleranswe rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 typical characteristics (t amb = 25 c, unless otherwise specified) fig. 2 - output open circuit voltage vs. led current fig. 3 - output short-circuit current vs. ambient temperature fig. 4 - output open circuit voltage vs. ambient temperature fig. 5 - t on , t off vs. led current safety and insulation ratings parameter test condition symbol min. typ. max. unit climatic classification (according to iec 68 part 1) iec 68 part 1 40/100/21 comparative tracking index i nsulation group iiia cti 175 399 transient overvoltage v iotm 6000 v recurring peak voltage v iorm 630 v package safety power p so 350 mw package safety current i si 150 ma package safety temperature t si 175 c creepage distance 5mm clearance distance 5mm 0 10 0204050 v oc v s . i f (v) i f (ma) 9 8 7 6 5 4 3 2 1 10 30 r l = 1 m r l = 500 k 15 35 45 525 0 60 - 40 0 40 100 i s c (a) ambient temperature (c) 10 ma 50 40 30 20 10 - 20 20 60 30 ma 5 ma 80 4 12 - 40 0 40 100 v oc (v) ambient temperature (c) 10 8 6 - 20 20 60 30 ma 5 ma 80 10 ma 11 9 7 5 0 600 01020 50 t on , t off ( s ) i f (ma) 500 400 300 200 100 51525 t on 35 30 45 40 t off
vom1271 www.vishay.com vishay semiconductors rev. 1.3, 29-aug-12 4 document number: 83469 for technical ques tions, contact: optocoupleranswe rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 fig. 6 - led reverse current vs. reverse voltage fig. 7 - led forward voltage vs. led forward current fig. 8 - short circuit output current vs. open circuit output voltage application description figure 8 illustrates a standard isolated mosfet driver such as vishays vo1263. though these parts are generally capable of supplying higher output current, they lack integrated fast turn-off circuitr y. thus, if high turn-off speed is required. external circuitr y needs to be provided, as illustrated in figure one. figure 9 illustrates the ability to do away with external turn-off circuitry with the vom1271, by taking advantage of the vom1271s integrated turn-off circuitry. fig. 9 - typical mosfet driver application without integrated fast turn-off 0 2.0 20 22 24 25 i r (a) v r (v) 1.6 1.4 1.2 1.0 0.8 21 23 1.8 0.6 0.4 0.2 100 c 0 c 1.0 1.6 01020 50 v f (v) i f (ma) 1.5 1.4 1.3 1.2 1.1 5152535 30 45 40 100 c 0 c 25 c 0 10 20 30 40 50 60 70 80 0 1 2 3 4 5 6 7 8 9 10 i s c - s hort circuit output current (a) v oc - open circuit output voltage (v) 45 ma 35 ma 25 ma 15 ma 5 ma p-channel jfet 2 m channel 1 control C s witch 1 n-channel mo s fet s +
vom1271 www.vishay.com vishay semiconductors rev. 1.3, 29-aug-12 5 document number: 83469 for technical ques tions, contact: optocoupleranswe rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 fig. 10 - typical bidirectional mosfet driver application with integrated fast turn-off package dimensions in millimeters package marking (example) s ingle mo s fet driver application 1 2 4 3 + - vom1271 turn off bidirectional mo s fet driver application 1 2 4 3 + - vom1271 turn off m1271 v yww 68 pin one dimple
vom1271 www.vishay.com vishay semiconductors rev. 1.3, 29-aug-12 6 document number: 83469 for technical ques tions, contact: optocoupleranswe rs@vishay.com this document is subject to change without notice. the products described herein and this document are subject to specific disclaimers, set forth at www.vishay.com/doc?91000 tape and reel packaging dimensions in millimeters fig. 11 - tape and reel shipping medium (eia-481, revision a, an d iec 60286), 2000 units per reel fig. 12 - tape dimensions esd sticker tape slot in core 330 (13") regular, special or bar code label 17999 22646 7.33 0.1 1 2 3 4 8 2.66 0.1 2.00 0.05 4.00 0.1 1.50 0.1 1.75 0.1 5.50 0.05 1.50 0.25 4.72 0.1 8.00 0.1 12.00 + 0.3 - 0.1
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