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Reference Design
UCC28881
SLUSC36B – NOVEMBER 2015 – REVISED JANUARY 2016
UCC28881 700-V, 225-mA Low Quiescent Current Off-Line Converter
1 Features
•1 Integrated 14-Ω, 700-V Power
MOSFET • Integrated High-
Voltage Current Source for
Internal Device Bias Power • Integrated Current Sense • Internal Soft Start • Self-Biased Switcher (Start Up and Operation
Directly from Rectified Mains
Voltage) • Supports Buck, Buck-Boost and Flyback
Topologies • 100-μA Device Quiescent Current • Robust Current Protection During Load Short
Circuit • Protection
– Current Limit – Overload and Output Short Circuit – Over T...