UCSR3652S

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

8 of 10

www.unisonic.com.tw

QW-R129-017.C

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OPERATION DESCRIPTION (Cont.)

Current Sensing and Leading Edge Blanking

Cycle-by-cycle current limiting is offered in UTC UCSR3652S. The switch current is detected by a sense resistor

into the CS pin. When the power switch is turned on, a turn-on spike will occur on this resistor. A 900ns leading-edge

blanking is built in to avoid false-termination of the switching pulse so that the external RC filtering is no longer

needed.

Protection Control

protection, leading edge blanking, OTP and UVLO, etc.