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UCSR3651S

UTC
Part Number UCSR3651S
Manufacturer UTC
Description HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
Published Apr 20, 2020
Detailed Description UNISONIC TECHNOLOGIES CO., LTD UCSR3651S Preliminary HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH CMOS IC  D...
Datasheet PDF File UCSR3651S PDF File

UCSR3651S
UCSR3651S

Overview
UNISONIC TECHNOLOGIES CO.
, LTD UCSR3651S Preliminary HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH CMOS IC  DESCRIPTION The UTC UCSR3651S is a primary control switch mode charger and adapter applications.
The controlled variable is transferred by an auxiliary winding from the secondary to the primary side.
The device integrates PWM controller to enhance the performance of discontinuous conduction mode (DCM) flyback converters.
The UTC UCSR3651S operates in primary-side sensing and regulation.
Opto-coupler and TL431 could be eliminated.
It also provides off-time modulation to linearly decrease PWM frequency under light-load conditions so that low standby power can be achieved.
The UTC UCSR3651S achieves high precision CV/CC regulation and high power efficiency.
It offers comprehensive protection coverage with auto-recovery features including Cycle-by-cycle current limiting, VDD over voltage protection, VDD clamp, OTP, leading edge blanking, VDD under voltage lockout, etc.
DI...


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