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AP3983R - PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER

Description

The AP3983R is a power switcher for power supplies with better conversion efficiency, better voltage & current accuracy, and improved protection functions.

Typical applications include chargers and adapters.

Features

  • Built-in N Channel MOSFET with 700 BVDSS.
  • Less than 75mW Standby Power Consumption.
  • Meet Efficiency Requirement of COC Trier 2.
  • Valley Turn-on to Reduce Switching Loss and Improve EMI.
  • Piecewise Frequency Reduction to Enhance Conversion Efficiency and Suppress Audio Noise.
  • Overvoltage Protection (OVP).
  • Over-Temperature Protection (OTP).
  • Short Circuit Protection (SCP) with Hiccup Operating Frequency Jitter Function for Conductive EMI Suppression.
  • Tota.

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Datasheet preview – AP3983R

Datasheet Details

Part number AP3983R
Manufacturer DIODES
File Size 632.13 KB
Description PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER
Datasheet download datasheet AP3983R Datasheet
Additional preview pages of the AP3983R datasheet.

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Full PDF Text Transcription

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A D V A N CNEEDW IPNRF ODRUMCATT I O N AP3983R PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER Description Pin Assignments The AP3983R is a power switcher for power supplies with better conversion efficiency, better voltage & current accuracy, and improved protection functions. Typical applications include chargers and adapters. The AP3983R with built-in MOSFET, regulates the output voltage and current in the primary side by piecewise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM). The system operating frequency reduces linearly from heavy load to light load in each interval of the p-PFM, and enters constant current mode when the load current equals to the maximum system output current.
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