FSDH0165D

www.fairchildsemi.com FSDH0165D Fairchild Power Switch(FPS) Features Single chip 650V 1A senseFET powerswitch Precision fixed operating frequency (100kHz) Internal start-up switch UVLO with hysteresis (6.7V/8.7V) Over load protection (typ. 4.5V) Over current protection (typ. 0.48A) Internal thermal shutdown function Secondary side regulation Auto-restart mode No load consumption < 250mW at 265VAC input Description The FSDH0165D is specially designed for an off-line SMPS with minimal external components. The FSDH0165D 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 gate turn-on/turn-off driver, thermal shutdown 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, the FSDH0165D can reduce total component count, design size, weight and at the same time increase efficiency, productivity, and system reliability. It has a basic platform well suited for cost effective design in a flyback converter. 8-DIPH Applications Charger & adaptor for mobile phone, PDA & MP3 Auxiliary power for PC 1 1.Vstr 2.Vfb 3.4.5.6.GND 7.Vcc 8.Drain Internal Block Diagram #1 : Vstr UVLO ≤ 6.7V #7 : Vcc UVLO VREG(5.8V) 4.5V VREF UVLO ≥ 8.7V...