Fairchild Power Switch(FPS)
Description
The FSDH565 is specially designed for an off-line SMPS with minimal external components. The FSDH565 is a monolithic high voltage power switching regulator that combine the SenseFET(LDMOS) with voltage mode PWM control block. Included PWM controller features integrated fixed oscillator, under voltage lock out, leading edge blanking, optimized gateturn-on/turn-off driver, thermal shut down protection and temperature compensated precision current sources for loop compensation and fault protection circuitry. compared to discrete MOSFET and controller or RCC switching converter solution, a FSDH565 can reduce total component count, design size, weight and at the same time increase efficiency, roductivity, and system reliability. It has a basic platform well suited for cost effective design in a flyback converter.
Features
• Single Chip 650V 0.5A SenseFET Power Switch
• Precision Fixed Operating Frequency (100kHz)
• Internal Start up Switch
• UVLO with Hysteresis (6.7V/8.7V)
• Over Load Protection
• Over Current Protection (0.3A)
• Internal Thermal Shutdown Function
• Secondary Side Regulation
• Auto-restart mode
• No load consumption
Applications
• Charger & Adaptor for Mobile Phone, PDA & MP3
• Auxiliary Power for PC, C-TV, Monitor
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