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)