ISL6146EFUZ

Overview

The ISL6146EFUZ 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 an operating temperature range from -40°C to +125°C. The device utilizes an 8-MSOP package with a lead count of 8. Key electrical parameters include a shutdown delay time of 65 ns and a supply current of 25 µA. It is designed for N+1 redundancy applications, featuring programmable undervoltage lockout and fault output capabilities.

Feature Summary

• Integrates an internal charge pump to drive N-channel MOSFETs without external components
• Provides fast reverse current fault isolation with high-speed comparator functionality
• Features user-programmable trip points via external resistors for system noise immunity
• Includes an open-drain FAULT pin to indicate conditional or FET faults

Applications

• N+1 power distribution systems
• Telecommunications and data communication equipment
• Uninterruptible power supplies (UPS)
• Low voltage processor and memory storage systems

Procurement Notes

Verify the specific suffix EFUZ against official Renesas documentation to confirm the MSOP-8 package configuration and enable logic state. Ensure compatibility with the required input voltage range and thermal management specifications for the target application environment before finalizing procurement orders.

Selection Notes

Select this component for designs requiring efficient power distribution using N-channel MOSFETs instead of diodes. Consider the 3V minimum operating voltage and the availability of separate BIAS and VIN pins with active high enable features when designing the control circuitry for optimal performance in low voltage scenarios.

Part Context

The ISL6146 series comprises OR-ing MOSFET controllers capable of handling voltages from 1V to 18V. The ISL6146E variant specifically offers separate BIAS and VIN inputs with active high enable functionality. This family aims to replace traditional power OR-ing diodes to improve efficiency in industrial and telecom power systems.

Replacement Considerations

Direct substitutes within the same package and feature set include the ISL6146DFRZ and ISL6146BFRZ-TK. Verify pinout compatibility and electrical specifications against the datasheet before substituting.