The MP6908A is a low-drop diode emulator IC
that, when combined with an external switch,
replaces Schottky diodes in high-efficiency
flyback converters. The MP6908A regulates the
forward drop of an external synchronous
rectifier (SR) MOSFET to about 40mV, which
switches off once the voltage becomes negative.
The MP6908A can generate its own supply
voltage for battery charging applications with a
potential low output voltage. The MP6908A can
also generate this voltage at short-circuit output
conditions or high-side SR configurations.
Programmable ringing detection circuitry
prevents the MP6908A from turning on falsely
at VDS oscillations during discontinuous
conduction mode (DCM) and quasi-resonant
operation.
The MP6908A is available in a space-saving
TSOT23-6 package.
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