VOM1271T

VOM1271T is a photovoltaic MOSFET driver with integrated fast turn-off, solid-state relay. It 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. Typical applications include high-side driver, solid-state relays, floating power supply, power control, data acquisition, ATE, isolated solenoid drivers, isolated high current relay drivers, and isolated high voltage relay drivers.

• Logic-compatible input, high reliability, integrated rapid turn-off circuitry
• Agency approvals: UL, cUL, VDE, FIMKO
• LED forward voltage is 1.4V typ at IF = 10mA, Tamb = 25°C
• Open circuit voltage is 8.1V typ at IF = 5mA, Tamb = 25°C
• Short circuit current is 7.0µA typ at IF = 5mA, Tamb = 25°C
• Turn-on time is 53µs typ at CL = 200pF, IF = 20mA, PW = 2ms, duty cycle = 50%, Tamb = 25°C
• Turn-off time is 65µs typ at CL = 200pF, IF = 20mA, PW = 2ms, duty cycle = 50%, Tamb = 25°C
• LED reverse voltage is 5V at IR = 10µA, Tamb = 25°C
• SOP-4 package
• Ambient operating temperature range from -40 to +100°C