The IR1168SPBF is a DUAL SmartRectifier™ 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 behaviour 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.
For synchronous rectification in resonant half bridge topologies
Anti-bounce logic and UVLO protection
Micropower start-up and ultra low quiescent current
