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| US3651AL-D08-T Datasheet, PDF (8/9 Pages) Unisonic Technologies – CMOS IC | |||
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US3651A
Preliminary
CMOS IC
ï® OPERATION DESCRIPTION(Cont.)
Protection Control
Good power supply system reliability is achieved with its comprehensive protection features including VDD
over-voltage protection, VDD Clamp, GATE Clamp, Power on soft start, Cycle-by-cycle current limiting, short circuit
protection, leading edge blanking, OTP and UVLO, etc.
VDD is supplied by transformer auxiliary winding output. The output of UTC US3651A is shutdown when VDD drops
below VTH(OFF) and the power converter enters power on start-up sequence thereafter.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
8 of 9
QW-R129-014.a
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