IR11672ASPBF View Datasheet(PDF) - International Rectifier
Part Name
Description
MFG CO.
IR11672ASPBF Datasheet PDF : 25 Pages
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IR11672AS
Description
IR11672A is a smart secondary-side driver IC designed to drive N-Channel power MOSFETs used as
synchronous rectifiers in isolated Flyback and resonant half-bridge converters. The IC can control one or more
paralleled N-MOSFETs to emulate the behavior of Schottky diode rectifiers. The drain to source voltage is
sensed differentially to determine the polarity of the current and turn the power switch on and off in proximity of
the zero current transition. The cycle-by-cycle MOT protection circuit can automatically detect no load
condition and turn off gate driver output to avoid negative current flowing through the MOSFETs. Ruggedness
and noise immunity are accomplished using an advanced blanking scheme and double-pulse suppression
which allow reliable operation in all operating modes.
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