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. The ISL6146 allows users to adjust with external resistor(s) the VOUT - VIN trip point, which adjusts the control sensitivity to system power supply noise. An open drain FAULT pin will indicate if a conditional or FET fault has occurred. The ISL6146A and ISL6146B are optimized for very low voltage operation, down to 1V with an additional independent bias of 3V or greater. The ISL6146C provides a voltage compliant mode of operation down to 3V with programmable undervoltage lock out and overvoltage protection threshold levels. The ISL6146D and ISL6146E are like the ISL6146A and ISL6146B respectively, but do not have conduction state reporting via the fault output.

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

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability
Active DFN Reel 1000
Availability
Active MSOP Tube 50
Availability
Active MSOP Reel 2500
Availability
Active MSOP Reel 250
Availability
Active MSOP Reel 1000
Availability
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability
Active DFN Reel 1000
Availability
Active MSOP Tube 50
Availability
Active MSOP Reel 2500
Availability
Active MSOP Reel 250
Availability
Active MSOP Reel 1000
Availability
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability
Active DFN Reel 1000
Availability
Active MSOP Tube 50
Availability
Active MSOP Reel 2500
Availability
Active MSOP Reel 250
Availability
Active MSOP Reel 1000
Availability
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability
Active DFN Reel 1000
Availability
Active MSOP Tube 50
Availability
Active MSOP Reel 2500
Availability
Active MSOP Reel 250
Availability
Active MSOP Reel 1000
Availability
Active DFN Tube 100
Availability
Active DFN Reel 6000
Availability
Active DFN Reel 250
Availability
Active DFN Reel 1000
Availability
Active MSOP Tube 50
Availability
Active MSOP Reel 2500
Availability
Active MSOP Reel 250
Availability
Active MSOP Reel 1000
Availability

Documentation

Title language Type Format File Size Date
Datasheets & Errata
ISL6146 Datasheet 日本語 Datasheet PDF 1.75 MB
Application Notes & White Papers
AN1681: Grounding Techniques Application Note PDF 509 KB
AN1684: Nonideality of Ground Application Note PDF 397 KB
Five Easy Steps to Create a Multi-Load Power Solution White Paper PDF 846 KB
How Green is Your Cloud? White Paper PDF 295 KB
PCNs & PDNs
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products Product Change Notice PDF 327 KB
PCN13005 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - Carsem (CAS) Ipoh, Malaysia Product Change Notice PDF 84 KB
Other
PIN19028 - Q3 Cy 19 Price Increase Notice Price Increase Notice PDF 208 KB