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AP3983E Datasheet HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER

Manufacturer: Diodes Incorporated

General Description

The AP3983E is high frequency power switcher for power supplies with better conversion efficiency, better voltage & current accuracy, and improved protection functions.

Typical applications include adapter for ADSL, home appliance power supply, LED lighting power supply and PC auxiliary power supplies.

The AP3983E with built in MOSFET, regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM).

Overview

A D V A N CNEEDW IPNRF ODRUMCATT I O N AP3983E HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER FOR OFF-LINE.

Key Features

  • Primary Side Control for Eliminating Opto-coupler.
  • Valley Switching Turn on for Higher Efficiency and Better EMI Performance.
  • Better Transient Characteristics.
  • Built-in N Channel MOSFET with 700 BVDSS.
  • Low Start-up Current: 0.2A (Typ. ).
  • Internal Output Cable Voltage Drop Compensation.
  • Hiccup Function to Improve Short Circuit Protection.
  • Better Over Voltage Protection.
  • Better Over Temperature Protection.
  • Low Total Cost Solution.
  • Output Powe.