General Description

The Supertex HV9605 is a BiCMOS/DMOS single-output, current mode, pulse width modulator IC designed to meet the requirements of ETR-060 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

□ 1.20V 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