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MP6908

Fast Turn-Off Intelligent Rectifier with No Need for Auxiliary Winding

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MP6908

MP6908

Fast Turn-Off Intelligent Rectifier with No Need for Auxiliary Winding

Datasheet

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.

Features & Benefits

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 MOSFETS
Compatible with Energy Star
~30ns Fast Turn-Off and Turn-On Delay
~100µA Quiescent Current
Supports DCM, CCM, and Quasi-Resonant Operations
Supports both High-Side and Low-Side Rectification
TSOT23-6 Package Available

Active Part Numbers:

MP6908AGJ-P MP6908AGJ-Z MP6908GJ-P MP6908GJ-Z

Design Resources

How does Flyback Synchronous Rectification Affect EMI?

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Mp6908 vg specs

HellO We busted EPC2034, MP6908 along with TPS724xx device in an implementation using UCC28782 controller. It gives output as desir...

DC-DC POWER CONVERTERS

Latest activity 2 weeks ago

High side rectification with MP6908

I am using the MP6908 controller in designing a Flyback, which output voltage is 25V. The maximum voltage across the SR m...

AC-DC POWER CONVERTERS

Latest activity 4 months ago

Whats the difference between.mp6907.6908A.ect.if used.in the flyback. which do you perfer？

...y! The choice depends on the flyback converter’s switching frequency and your efficiency goals. The MP6908A is good for switching frequency upto 50...

DC-DC POWER CONVERTERS

Latest activity 8 months ago

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