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UC1100 Datasheet Low-power High Precision Cc/cv Primary Side Switching Regulator

Manufacturer: Unisonic Technologies

Overview: UNISONIC TECHNOLOGIES CO., LTD UC1100 Preliminary CMOS IC LOW-POWER HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR.

General Description

The UTC UC1100 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 uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies.

Key Features

  • S.
  • Primary side control for rectangular constant current and.
  • Random frequency modulation to reduce system EMI constant voltage output.
  • Flyback topology in DCM operation.
  • 30mW no-load input power feasible.
  • Open feedback protection.
  • Tight CC regulation performance.
  • Built-in soft start.
  • Sub-microampere start-up current.
  • Short circuit protection.
  • Eliminates control loop compensation circuitry.
  • Eliminates opto-coupler and secondary CV.

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More Datasheets from Unisonic Technologies

Part Number Description
UC1103 HIGH PRECISION CC/CV PRIMARY SIDE SWITCHING REGULATOR
UC1108 LOW-POWER OFF-LINE PRIMARY SIDE REGULATION CONTROLLER