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