5M0380R Datasheet | Fairchild Semiconductor

Features - Precision Fixed Operating Frequency (100/67/50k Hz) - Low Start-up Current(Typ. 100u A) - Pulse by Pulse Current Limiting - Over Current Protection - Over Voltage Protection (Min. 25V) - Internal Thermal Shutdown Function - Under Voltage Lockout - Internal High Voltage Sense FET - Auto-Restart Mode Applications - SMPS for VCR, SVR, STB, DVD & DVCD - SMPS for Printer, Facsimile & Scanner - Adaptor for Camcorder Description The Fairchild Power Switch(FPS) product family is specially designed for an off-line SMPS with minimal external ponents. The Fairchild Power Switch(FPS) consists of a high voltage power Sense FET and a current mode PWM IC. Included PWM controller integrates the fixed frequency oscillator, the under voltage lock-out, the leading edge blanking, the optimized gate turn-on/turn-off driver, the thermal shutdown protection, the over voltage protection, and the temperature pensated precision current sources for the loop pensation and the fault protection circuitry. pared to a discrete MOSFET and a PWM controller or an RCCsolution, a Fairchild Power Switch(FPS) can reduce the total ponent count, design size and weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for the cost effective design in either a flyback converter or a forward converter TO-220F-4L Internal Block Diagram 1 1. GND 2. Drain 3. VCC 4. FB #3 VCC #4 FB 32V 5V Internal Vref bias Good logic 5μA 7.5V 27V 9V 1m A 2.5R 1R - + L.E.B 0.1V + - + Thermal S/D - OVER VOLTAGE S/D Power on reset ©2003 Fairchild Semiconductor Corporation SFET #2 DRAIN #1 GND Rev.1.0.7 KA5X03XX-SERIES...