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:

MP6908GJ-P MP6908GJ-Z

Meaning of P & Z

Related Products

EV6908-J-00A Fast Turn-Off Synchronous Rectification Evaluation Board with No Need for Auxiliary Winding

The EV6908-J-00A is an evaluation board designed to demonstrate the capabilities of the MP6908, a low-drop diode emulator IC. When combined with an external switch, the MP6908 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 a low output voltage (V_OUT) for high-side rectification applications. Configurable ringing detection circuitry prevents the MP6908 from false turn-on during discontinuous conduction mode (DCM) and quasi-resonant (QR) operation.

$25.00
+ tax