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The ISL6146 represents a family of OR-ing MOSFET controllers capable of OR-ing voltages from 1V to 18V. Together with suitably sized N-channel power MOSFETs, the ISL6146 increases power distribution efficiency when replacing a power OR-ing diode in high current applications. It provides gate drive voltage for the MOSFET(s) with a fully integrated charge pump.

Features

? OR-ing Down to 1V and Up to 20V with ISL6146A, ISL6146B, ISL6146D and ISL6146E

? Programmable Voltage Compliant Operation with ISL6146C

? VIN Hot Swap Transient Protection Rating to +24V

? High Speed Comparator Provides Fast <0.3?s Turn-off in Response to Shorts on Sourcing Supply

? Fastest Reverse Current Fault Isolation with 6A Turn-off Current

? Very Smooth Switching Transition

? Internal Charge Pump to Drive N-channel MOSFET

? User Programmable VIN - VOUT Vth for Noise Immunity

? Open Drain FAULT Output with Delay

- Short between any two of the OR-ing FET Terminals

- GATE Voltage and Excessive FET VDS

- Power-Good Indicator (ISL6146C)

? MSOP and DFN Package Options

Applications

? N+1 Industrial and Telecom Power Distribution Systems

? Uninterruptable Power Supplies

? Low Voltage Processor and Memory

? Storage and Datacom Systems