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USR3651

UTC
Part Number USR3651
Manufacturer UTC
Description HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
Published Apr 21, 2020
Detailed Description UNISONIC TECHNOLOGIES CO., LTD USR3651 Preliminary HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH CMOS IC  DES...
Datasheet PDF File USR3651 PDF File

USR3651
USR3651

Overview
UNISONIC TECHNOLOGIES CO.
, LTD USR3651 Preliminary HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH CMOS IC  DESCRIPTION The UTC USR3651 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 USR3651 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 US...


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