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UCSR3654 Datasheet HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD UCSR3654 HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH CMOS IC.

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General Description

The UTC UCSR3654 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.
  • 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 winding inductance compensation.
  • Pow.

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