Description

The CXA3809M has optimum configuration to realize various power supply circuits easily and compactly by

including Power-factor correction, resonant controller and various protection function in one package.

(Applications: Power supply circuit, etc.)

Features

Power-factor correction

Multiplierless critical conduction mode (CRM) control

 Supports W/W input

Restart timer

Maximum frequency limit (during overcurrent detection)

 Continuous overcurrent detection protection function

Resonant controller

Timer-latch over current protection

 Soft start function

Adjustment minimum frequency limit

Pulse over current load detection

 Out of resonance prevention function at start-up

Common

Adjacent 2-pin short protection

 Various protection functions including overvoltage and overcurrent

AC off detection

 PFC-OK signal output

Structure

BiCMOS silicon monolithic IC