Description

The STC494 is a monolithic integrated circuit which includes all the necessary building blocks for the design of pulse width modulate(PWM) switching power supplies, including push-pull, bridge and series configuration. The device can operate at switching frequencies between 1KHz and 300KHz and output voltage up to 40V. The STC494 is specified over an operating temperature range of -40к to 85к .

Features

ΘUncommitted output transistors capable of 200mA source or sink

ΘInternal protection from double pulsing of out-puts with narrow pulse widths or with! supply voltages bellows specified limits

ΘEasily synchronized to other circuits

ΘDead time control comparator

ΘOutput control selects single-ended or push-pull operation