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IR1168S

DUAL SMART RECTIFIER DRIVER IC

International Rectifier 

IR1168S

Description

IR1168 is dual smart secondary-side rectifier driver IC designed to drive two N-Channel power MOSFETs used as

synchronous rectifiers in resonant converter applications. The IC can control one or more paralleled N MOSFETs

to emulate the behavior of Schottky diode rectifiers. The drain to source for each rectifier MOSFET voltage is

sensed differentially to determine the level of the current and the power switch is turned ON and OFF in close

proximity of the zero current transition. Ruggedness and noise immunity are accomplished using an advanced

blanking scheme and double-pulse suppression that allows reliable operation in fixed and variable frequency

applications.

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