Power Factor Correction ICs

FA1A50N

  • Status:Available

The FA1A50N is a control IC for configuring a critical-mode power factor correction converter. It achieves low power consumption by using a high-voltage CMOS process. It also has a redundant overvoltage protection function and FB short-circuit protection circuit.

Features

  • Capable of low standby power by disabling input voltage detection
  • High-precision current detection: 0.6 V ± 2%
  • Improves efficiency under light loads using a frequency reduction function
  • Reduces noise using an overshoot reduction function and dynamic OVP circuit
  • Achieves low power consumption by using a high-voltage CMOS process
    1. Startup of 500 μA (typ), 1.5 mA (typ) during operation
  • Capable of directly driving power MOSFET, output peak current: source 0.5 A/sink 1 A
  • Prevents overvoltage and protects the output electrolytic capacitor using a redundant overvoltage protection circuit, even when an abnormality occurs in the output voltage detection line.
  • Stops circuit operation when the output voltage detection unit detects an abnormality using an FB short-circuit detection circuit
  • Built-in low voltage malfunction prevention circuit (9.6 V ON/8.8 V OFF)
  • Restart timer
  • Package: SOP-8

Applications

  • Switching Power Supplies

Specifications

Controller type CRM PFC
Applied circuit Detail PFC (Boost))
Frequency Selfoscillation
VCC(V) 10 to 26
OVP pin Detail With
Overload operation No (with overcurrent protection)
Overvoltage operation Auto-Recovery (FB)
Package SOP-8

Documentation Tools

Design tools PFC board design tool
Selection Guide Power Supply Control IC Selection Guide

Appearance

SOP-8

Block diagram

Circuit diagram

Outline drawing

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