UPSR1103 Datasheet High Precision Cc/cv Primary Side Switching Regulator

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD UPSR1103 Advance HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR CMOS IC.

Datasheet Details

Part number	UPSR1103
Manufacturer	Unisonic Technologies
File Size	199.02 KB
Description	HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR
Datasheet	UPSR1103-UnisonicTechnologies.pdf

General 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.

Key Features

S.
High voltage startup.
±5% constant voltage regulation at universal AC input.
High precision constant current regulation at universal AC input.
Primary side control without TL431 and opto-coupler.
Programmable CV and CC regulation.
Programmable cable compensation in CV mode.
Flyback topology in DCM operation.
Frequency hopping to reduce system EMI.
Driver MOSFET switch.
Built-in leading edge blanking.
Built-in primary winding inductance c.

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