General Description

The Supertex HV9605C is a BiCMOS/DMOS single-output, current mode, pulse width modulator IC designed to meet the requirements of ETR-080 for ISDN applications. In a 14 pin package, it provides all the necessary functions to implement a single-switch PWM with a minimum of external parts.

Features

? BiCMOS/DMOS technology

? Current mode control

? 49 duty cycle operation

? Programmable START/STOP capability

? 15V to 250V input range internal start-up regulator

? 6.0μA standby supply current for +VIN <20V

? 0.9mA operating supply current

? 5.0V VDD supply operation

? 30KHz to 300KHz internal oscillator

? 15KHz to 150KHz converter output frequency

? 1.0MHz low offset error amplifier

? 1.25V 2 band gap reference

? Output driver optimized for under 10W applications

? Low driver output impedance with VDD = 0V

? Fast (90nsec) over current shutdown

? All pins are ESD protected

Applications

? ISDN network terminations

? ISDN terminals

? ISDN terminal adapters

? Feature phones

? SLIC circuits

? PBX systems

? Modems

? Distributed power systems

? DC/DC converters