ISL6146AFRZ

Overview

The ISL6146AFRZ is an N+1 ORing controller designed for low-voltage power distribution systems. It operates with N-channel MOSFETs to replace diodes, supporting input voltages from 3V to 20V. The device features a fully integrated charge pump and offers programmable undervoltage lockout. Packaged in an 8-DFN (3x3) format, it supports surface mount installation and functions within a temperature range of -40°C to 125°C.

Feature Summary

• Integrated charge pump enables efficient driving of N-channel MOSFETs without external components
• Programmable undervoltage lockout allows adjustment of control sensitivity to system noise
• Open drain fault output indicates conditional or FET faults for system monitoring

Applications

• N+1 redundant power supply architectures
• Telecommunications and data communication systems
• Industrial power distribution networks

Procurement Notes

Verify the specific suffix 'FRZ' against manufacturer documentation to confirm package type and tape-and-reel configuration. Ensure compatibility with the required operating voltage range and thermal management requirements for the target application environment.

Selection Notes

Select this component for applications requiring high-efficiency power ORing with low quiescent current. Consider the 8-DFN package for space-constrained designs and verify that the N-channel MOSFET selection aligns with the controller's drive capabilities and voltage ratings.

Part Context

Part of the ISL6146 family of OR-ing MOSFET controllers. The ISL6146A variant specifically targets low-voltage operation down to 3V with independent bias options. This series replaces traditional diode ORing to improve efficiency in processor, memory, and storage systems.

Replacement Considerations

ISL6146BFRZ: Similar N+1 controller with comparable specifications and packaging.