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UPSR1103

Unisonic Technologies
Part Number UPSR1103
Manufacturer Unisonic Technologies
Description HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR
Published Mar 12, 2016
Detailed Description UNISONIC TECHNOLOGIES CO., LTD UPSR1103 Advance HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR CMOS IC  DES...
Datasheet PDF File UPSR1103 PDF File

UPSR1103
UPSR1103

Overview
UNISONIC TECHNOLOGIES CO.
, LTD UPSR1103 Advance HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR CMOS IC  DESCRIPTION The UTC UPSR1103 is a primary control unit for 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 UPSR1103 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.
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