Product Summary

The IR1168STRPBF is a dual smart rectifier driver IC. It is designed to drive two N-Channel power MOSFETs used as synchronous rectifiers in resonant converter applications. The IR1168STRPBF 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. The IR1168STRPBF is used in LCD & PDP TV, Telecom SMPS, AC-DC adapters.

Parametrics

IR1168STRPBF absolute maximum ratings: (1)Supply Voltage VCC: -0.3 to 20 V; (2)Cont. Drain Sense Voltage VD: -3 to 200 V; (3)Pulse Drain Sense Voltage VD: -5 to 200 V; (4)Source Sense Voltage VS: -3 to 20 V; (5)Gate Voltage VGATE: -0.3 to 20 V; (6)Operating Junction Temperature TJ: -40 to 150 ℃; (7)Storage Temperature TS: -55 to 150 ℃; (8)Thermal Resistance RθJA: 128 ℃/W; (9)Package Power Dissipation PD: 970 mW; (10)Switching Frequency fsw: 500 kHz.

Features

IR1168STRPBF features: (1)Secondary-side high speed controller for synchronous rectification in resonant half bridge topologies; (2)200V proprietary IC technology; (3)Max 500KHz switching frequency; (4)Anti-bounce logic and UVLO protection; (5)4A peak turn off drive current; (6)Micropower start-up & ultra low quiescent current; (7)10.7V gate drive clamp; (8)70ns turn-off propagation delay; (9)Wide Vcc operating range; (10)Direct sensing for both Synchronous Rectifiers; (11)Minimal component count; (12)Simple design; (13)Lead-free.

Diagrams

IR1168STRPBF diagram

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