DESCRIPTION

The 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. 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 driver

applications.

FEATURES

? Open circuit voltage at IF = 10 mA, 8.4 V typical

? Short circuit current at IF = 10 mA, 15 μA typical

? Isolation test voltage 3750 VRMS

? 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 current relay drivers

? Isolated high voltage relay drivers

AGENCY APPROVALS

? UL

? cUL

? VDE

? FIMKO