MC34081AD

The MC34081AD is one member of the MC34081 family which is designed as the pin programmable overvoltage "crowbar" sensing circuit. MC34081AD senses an overvoltage condition and quickly "crowbar", or short circuit, the supply. An on-chip, tapped resistor network allows the device to be programming pins provides one standard overvoltage trip point for nominal power supply voltages of 5.0, 12, 15, 24 or 28 V. Many other trip voltages may be programmed by interconnecting and grounding various combinations of these programming pins.

Features of the MC34081AD are:(1)unique pin-programmable trip voltage from 3.5 to 40 V;(2)one-pin programming for 5.0, 12, 15, 24 and 28 V power supplies;(3)SCR gate drive output of 200 mA;(4)built-in hysteresis voltage;(5)wide supply range: 4.0 V </= Vcc </= 40 V.

The absolute maximum ratings of the MC34081AD can be summarized as:(1)operating voltage: 40 Vdc;(2)voltage across any internal resistor in network: 40 Vdc;(3)current through any resistor in network: 10 mA;(4)sense voltage: 40 Vdc;(5)drive output current: internally limited mA;(6)operating ambient temperature: 0 to +70;(7)storage temperature range: -65 to +150. If you want to know more information such as the electrical characteristics about the MC34081AD, please download the datasheet in www.seekic.com or www.chinaicmart.com .