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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

Meaning of P & Z

Design Resources

How does Flyback Synchronous Rectification Affect EMI?

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Technical Forum

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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 4 months ago

MP6908 in SR of low voltage DC DC application

What will be the maximum switching frequency that MP6908 can run for both CCM and DCM mode? (eg, 100 kHz, 200 kHz and so on) Is it suitable for low vo...

DC-DC POWER CONVERTERS

Latest activity 4 weeks ago

High side rectification with MP6908

Hi M.Checchinato: Can you please share with us the SR MOSFET that is being driven by the MP6908. Also please share with us the line voltage of the AC ...

AC-DC POWER CONVERTERS

Latest activity 8 months ago

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All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.

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