UCSR3654S Datasheet High Precision Cc/cv Primary-side Pwm Power Switch

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD UCSR3654S HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH CMOS IC.

Datasheet Details

Part number	UCSR3654S
Manufacturer	Unisonic Technologies
File Size	217.92 KB
Description	HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
Datasheet	UCSR3654S-UTC.pdf

General Description

The UTC UCSR3654S 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.

Key Features

S.
High Voltage startup circuit.
Built-in 650V Power MOSFET.
±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.
Built-in leading edge blanking.
Built-in primary windin.

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