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Diodes Incorporated Secondary Side SR Controllers

Diodes Inc. Secondary Side Synchronous Rectification (SR) Controllers are secondary-side MOSFET drivers for synchronous rectification in DCM operation. These devices can effectively reduce the secondary-side rectifier power dissipation and provide a high-performance solution. The N-Channel MOSFET has been optimized for low gate charge, low RDS(ON), fast switching speed, and body diode reverse recovery performance. By sensing the MOSFET drain-to-source voltage, these controllers can output an ideal drive signal with fewer external components.

Features

  • Synchronous rectification controller
  • Suited for high-side and low-side flyback converters in CCM/DCM/QR operation
  • Fast turn-on and turn-off delay
  • Internal UVLO protection
  • Light load mode
  • Eliminate resonant ring interference
  • Fewest external components
  • Lead-free and fully RoHS compliant
  • Halogen and antimony-free "Green" device

Applications

  • Adapters/chargers for cell/cordless phones, ADSL modems, MP3 and other portable apparatus
  • Standby and auxiliary power supplies
  • AC/DC battery charger
  • USB Type-C™ charger
  • Flyback conversion
  • PC power supply
  • Switched-Mode Power Supply (SMPS)

Datasheets

Published: 2020-01-20 | Updated: 2024-07-09