ISL6146CFUZ

Overview

The ISL6146CFUZ is a low voltage OR-ing FET controller manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3V to 20V and supports a single channel configuration. The device features programmable current limiting and includes power failure detection capabilities. It is housed in an MSOP-8 surface-mount package and is designed for operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrated internal charge pump enables efficient driving of N-channel MOSFETs without external components
• Fast fault isolation with high-speed comparator providing rapid turn-off response
• User-programmable trip point 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 Industrial and Telecom Power Distribution Systems
• Uninterruptible Power Supplies (UPS)
• Low Voltage Processor and Memory Storage Systems
• Datacom Systems requiring redundant power input

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm RoHS compliance status via official documentation prior to integration. Ensure thermal management aligns with the specified operating temperature range. Validate package compatibility with existing PCB footprints. Review end-of-life notifications for long-term supply chain stability.

Selection Notes

Select this controller for applications requiring low voltage OR-ing functionality down to 3V. The device is suitable where programmable undervoltage lockout and fault reporting are necessary. Consider the MSOP-8 package size for space-constrained designs. Evaluate the need for separate BIAS and VIN inputs based on system architecture requirements.

Part Context

The ISL6146CFUZ belongs to the ISL6146 family of OR-ing MOSFET controllers. This series replaces traditional power OR-ing diodes to increase efficiency in high-current applications. The family includes variants optimized for different voltage ranges and feature sets, such as conduction monitoring and specific enable logic configurations.

Replacement Considerations

ISL6146DFRZ

FAQ

Does the ISL6146CFUZ support independent bias and VIN inputs?

Yes, the ISL6146C variant provides separate BIAS and VIN pins with active high enable functionality.

What is the minimum operating voltage for the ISL6146CFUZ?

The device supports voltage compliant mode operation down to 3V.