General PWM-ICs

FA5604N

  • Status:Available

FA5604N is a PWM switching power supply control IC that can directly drive power MOSFETs. It achieves low power consumption by reducing the switching frequency at light loads. In addition, despite its 8-pin package, it incorporates a wide variety of protective functions and reduces the number of external components, thereby facilitating the design of compact, high-performance, and high-efficiency power supplies.

Features

  • Voltage mode control
    1. Applied to forward power supplies (maximum duty cycle = 46%)
  • Automatically reduces the switching frequency to suppress loss in stand-by mode
  • The switching frequency can be set (RT pin)
  • A drive circuit for connecting a power MOSFET directly
    1. Output peak current: +1.0A / -0.5A
  • Overcurrent of primary side limiting function (IS pin negative voltage sense)
  • Overload protection function (switching frequency control by VF pin)
  • Overload protection function (CS pin)
  • Built-in output overvoltage latch protection (stopping the latch by pulling up the CS terminal by external signals)
  • Undervoltage lockout function (17.5V ON / 9.7V OFF)
  • 8-pin package (SOP-8)

Applications

  • Switching Power Supplies

Specifications

Controller type PWM
Applied circuit Detail Forward
Frequency (kHz) Adjustable
VCC(V) 10 to 30
Built-in start up circuit (V) Without
Over load protection Auto-Recovery
Over voltage protection Latch (VCC)
Package SOP-8

Documentation Tools

Reference Design Power Supply Control IC Reference Design
Selection Guide Power Supply Control IC Selection Guide

Appearance

SOP-8

Block diagram

Circuit diagram

Outline drawing

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