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MP6973 - CCM/DCM Flyback Ideal Diode

Description

The MP6973 is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100V/14mΩ MOSFET.

It can replace a diode rectifier for higher efficiency and power density.

Features

  • Integrated 100V/14mΩ MOSFET.
  • Optimized Efficiency for Low-Side Rectification.
  • Ringing Detection Prevents False Turn-On during DCM Operations.
  • Compatible with Energy Star.
  • 110µA Quiescent Current.
  • Supports DCM, CCM, and Quasi-Resonant Operations.
  • Wide Output Range Down to 0V.
  • Available in an SOIC-8 Package.

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DESCRIPTION The MP6973 is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100V/14mΩ MOSFET. It can replace a diode rectifier for higher efficiency and power density. The chip regulates the forward voltage drop of the internal power switch to VFWD (40mV) and turns off before the drain-source voltage reverses. The MP6973 is optimized for low-side rectification. The internal ringing detection circuitry prevents the MP6973 from falsely turning on during discontinuous conduction mode (DCM) or quasi-resonant operations. The MP6973 is available in an SOIC-8 package.
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