ISL6146BFRZ

Overview

The ISL6146BFRZ is an N+1 ORing controller manufactured by Renesas Electronics Corporation, designed for power distribution systems. It operates with external N-channel MOSFETs to replace power diodes, enhancing efficiency. The device supports input voltages from 3V to 20V and features a fully integrated charge pump. Key electrical parameters include a supply voltage range of 3V to 20V, a shutdown delay time of 65 ns, and a supply current of 25 µA. It is housed in an 8-DFN (3x3) package with exposed pad.

Feature Summary

• Integrated charge pump drives external N-channel MOSFETs without requiring additional bias supplies.
• Programmable undervoltage lockout allows adjustment of control sensitivity to system power supply noise.
• Open-drain fault output pin indicates conditional or FET faults for system monitoring.

Applications

• N+1 redundant power distribution systems
• Telecommunications and data communication equipment
• Uninterruptible power supplies

Procurement Notes

Verify the specific suffix FRZ confirms the 8-DFN (3x3) package configuration. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for any Product Change Notices regarding labeling or manufacturing site updates that may affect part identification.

Selection Notes

Select this component when designing systems requiring low-voltage OR-ing with high efficiency. Ensure the external MOSFET selection matches the controller's drive capabilities. Verify that the operating temperature range of -40°C to 125°C meets the environmental requirements of the target application.

Part Context

This part belongs to the ISL6146 family of OR-ing MOSFET controllers. Variants such as ISL6146A, C, D, and E offer different voltage ranges and enable configurations. The B variant specifically targets applications requiring operation down to 3V with independent bias support.

Replacement Considerations

Direct substitutes within the same package include other ISL6146 variants like ISL6146AFUZ or ISL6146DFRZ, provided their specific voltage and enable pin configurations match the design requirements.