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USRB01A Datasheet High Precision Cc/cv Primary Side Switch

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD USRB01A Preliminary LINEAR INTEGRATED CIRCUIT HIGH PRECISION CC/CV PRIMARY SIDE SWITCH.

General Description

The UTC USRB01A is a primary controller for charger and adapter applications.

The controlled variable is transferred by an auxiliary winding from the secondary to the primary side.

The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies.

Key Features

  • S SOP-8.
  • ±5% constant voltage regulation at universal AC input.
  • Primary side control without TL431 and opto-coupler.
  • High precision constant current regulation at universal AC input.
  • Programmable CV and CC regulation.
  • Eliminates control loop compensation circuitry.
  • Flyback topology in DCM operation.
  • Random frequency modulation to reduce system EMI.
  • Built-in power NPN.

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Similar Datasheet

Brand Logo Part Number Description Manufacturer
Unisonic Technologies Logo USRB01 HIGH PRECISION CC/CV PRIMARY SIDE SWITCH Unisonic Technologies

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