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 <0.3µs 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
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