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AP3783R Datasheet PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER

Manufacturer: Diodes Incorporated

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General Description

Pin Assignments The AP3783R is a high frequency, high efficiency and high accuracy switching mode power supply controller to drive power MOSFET for 5V/2A battery charger/adapter applications.

The controller regulates the output voltage and current in the primary side by piece-wise 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.

Overview

NEW PRODUCT AP3783R PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY.

Key Features

  • Less than 30mW Standby Power Consumption.
  • Meet Efficiency Requirement of COC Trier2.
  • Valley Turn-on to Reduce Switching Loss and Improve EMI.
  • Piece-wise Frequency Reduction to Enhance Conversion Efficiency and Suppress Audio Noise.
  • Over Voltage Protection (OVP).
  • Over Temperature Protection (OTP).
  • Short Circuit Protection (SCP) with Hiccup.
  • 3-Segment Drive Current for Radiative EMI Suppression.
  • Operating Frequency Jitter Function for Conductive EMI Su.

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