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MP6908 - Fast Turn-Off Intelligent Rectifier

General Description

The MP6908 is a low-drop diode emulator IC that, when combined with an external switch, replaces Schottky diodes in high-efficiency flyback converters.

Key Features

  • Wide Output Range down to 0V, No Short Circuit Current Flows through Body Diode.
  • No Need for Auxiliary Winding for High-Side or Low-Side Rectification.
  • Ringing Detection Prevents False Turn-On during DCM and Quasi-Resonant Operations.
  • Works with Standard and Logic Level SR.

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Other Datasheets by Monolithic Power Systems

Part Number Description
MP6908A Fast Turn-Off Intelligent Rectifier
MP6908AGJ Fast Turn-Off Intelligent Rectifier
MP6908GJ Fast Turn-Off Intelligent Rectifier
MP6908L Fast Turn-Off Intelligent Rectifier
MP6900 Fast Turn-off Intelligent Controller

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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DESCRIPTION The MP6908 is a low-drop diode emulator IC that, when combined with an external switch, replaces Schottky diodes in high-efficiency flyback converters. The MP6908 regulates the forward drop of an external synchronous rectifier (SR) MOSFET to about 40mV, which switches off once the voltage becomes negative. The MP6908 can generate its own supply voltage for battery charging applications with potential low output voltage, and at short circuit output condition, or for high-side SR configuration. Programmable ringing detection circuitry prevents the MP6908 from turning on falsely at Vds oscillations during discontinuous conduction mode (DCM) and quasi-resonant operation. The MP6908 is available in a space-saving TSOT23-6 package.