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APR348 - SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER

General Description

The APR348 is a secondary-side MOSFET driver for synchronous rectification, which can effectively reduce the secondary-side rectifier power dissipation and provide a high-performance solution.

Key Features

  • Synchronous Rectification Controller.
  • Suited for High-Side and Low-Side Flyback Converters in CCM/DCM/QR Operation.
  • Minimized Turn-On and Turn-Off Delay.
  • Internal UVLO Protection.
  • Light Load Mode Control.
  • Eliminate False Turn-On with Resonant Ring.
  • Fewest External Components.
  • Moisture Sensitivity: MSL Level 1 per J-STD-020.
  • Terminals: Finish.
  • Matte Tin Plated Leads, Solderable per M2003 JESD22-B102, Method 208.
  • Weight: 0.016/0.017 grams.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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NEW PRODUCT APR348 SECONDARY SIDE SYNCHRONOUS RECTIFICATION CONTROLLER Description The APR348 is a secondary-side MOSFET driver for synchronous rectification, which can effectively reduce the secondary-side rectifier power dissipation and provide a high-performance solution. Pin Assignments (Top View) The APR348 can support continuous or discontinuous conduction mode (CCM and DCM) and quasi-resonant flyback operation based on a MOSFET operating on-time control technology. This technology provides minimized turn-on and turn-off delay to reduce power loss and keep safe operation without adding any external components or circuitry. VCC 1 GND 2 Rx 3 6 VDET 5 DRISR 4 VDD The APR348 can configure into high-side or low-side application to fit various design requirement.