Power Factor Correction ICs

FA5591N

  • Status:Available

The FA5591N 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 an FB short-circuit detection circuit that stops operation when an abnormality is detected by the output voltage detection unit.

Features

  • Capable of low standby power by disabling input voltage detection
  • High-precision current detection: 0.6 V ± 5%
  • Improves efficiency under light loads using a maximum frequency limiting function
  • Prevents noise using a soft start and dynamic OVP circuit
  • Achieves low power consumption by using a high-voltage CMOS
    1. Startup of 80 μA (max), 2 mA (typ) during operation
  • Capable of directly driving power MOSFET, output peak current: source 1 A/sink 1 A
  • Stops switching even when an abnormality occurs in the output voltage detection line using an FB short-circuit detection circuit
  • Built-in low voltage malfunction prevention circuit (13 V ON/9 V OFF)
  • Restart timer
  • Standby function
  • 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 -
Overload operation No (with overcurrent protection)
Overvoltage operation Auto-Recovery (FB)
Package SOP-8

Documentation Tools

Selection Guide Power Supply Control IC Selection Guide

Appearance

SOP-8

Block diagram

Circuit diagram

Outline drawing

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