FA5571 데이터 시트보기 (PDF) - Unspecified

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FA5571

Low Standby Power Quasi-Resonant Controller

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Power Electronics

FA5571 series

Low Standby Power Quasi-Resonant Controller

■ Features

・Internal 500V high voltage startup current source

・Realized less than 1W input at 0.7W load by intermitting

・Quasi-resonant operation, low noise and high efficiency

・Numerous kind of protect functions

■ Applications

・LCD TV/Monitor Main and Standby SMPS

・Note PC Adapter

■ Specifications

・Startup current source 7mA, 1.6mA at VCC=0V, 30uA at off

・VCC voltage range 9 to 26V

・OUT pin peak current sink 500mA, source -250mA

・Soft-start time 2.6ms

・IS current limiter 1V±0.1V, Windings shorted protection 2V

・ZCD OVP protection 7.2V ( Latched)

・OLP timer auto-recovery switching on/off is 0.2/1.4 sec

(Prepared in FA5571 series OLP auto-recovery and latched)

■ Circuit block

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