Description

FA5590/FA5591 is power-factor correction converter IC operating in critical conduction mode. It realizes low power consumption by using high voltage CMOS process. It is equipped with many fault protection functions such as FB short-circuit detection circuit which stops the operation when abnormal output voltage is detected.



Features

Very Low Standby Power by disusing Input Voltage Detection Resistors

High-precision over current protection：0.6V±5%

Improved power efficiency at light load due to Maximum Frequency Limitation

No Audible Noise at Startup

  Soft-Startup and Soft-OVP functions

Low current consumption by CMOS process

  Start-up : 80µA(max.), Operating : 2mA(typ.)

Enabled to drive power MOSFET directly

  Output peak current, source : 500mA, sink : 1000mA

Open/short protection at feedback (FB) pin

Under-voltage Lockout

  FA5590: 9.6V ON / 9V OFF FA5591:13V ON / 9V OFF

Overvoltage protection

Restart timer

Standby function

8-pin package (SOP)