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