Product Summary

FA5331P(M) and FA5332P(M) are control ICs for a power factor correction system.  These ICs use the average current
control system to ensure stable operation.  With this system, a power factor of 99% or better can be achieved.
FA5331P(M) is a 1st generation IC and FA5332P(M) is 2nd generation IC which light-load characteristics are improved.

Parametrics

 Absolute maximum ratings:


  1. Supply voltage:10 to 25V
  2. IDET terminal input voltage:-1.0 to 0V
  3. VDET terminal input voltage:0 to 2.0V
  4. VDET terminal peak input voltage:0.65 to 2.0V
  5. Oscillation frequency:10kHz
  6. Noise filter resistance connected to IDET terminal:0 to 100Ω


Features

? Drive circuit for connecting a power MOS-FET(Io =±1.5A)
? Pulse-by-pulse overcurrent and overvoltage limiting function
? Output ON/OFF control function by external signals
? External synchronizing signal terminal for synchronous operation with other circuits
? Undervoltage malfunction prevention function
? Low standby current (90μA typical) for simple start-up circuit
? 16-pin package (DIP/SOP)
? ±2% accuracy reference voltage for setting DC output and overvoltage protection [FA5332P(M) only]
? When there is a possibility of light-load operation,FA5332P(M) is suitable.

Diagrams