ISL6144IV-T

Overview

The ISL6144IV-T is a high-voltage OR-ing FET controller IC manufactured by Renesas Electronics Corporation. It operates within a bias voltage range of 9V to 75V and withstands transients up to 100V. The device features a response time of less than 300ns and a slow turn-off ramp time of less than 100μs. It supports reverse voltage thresholds adjustable from 0V to 5.3V via an external resistor. Available in 16-pin QFN and 20-pin TSSOP packages, it replaces lossy diodes to reduce power dissipation in high-voltage systems.

Feature Summary

• Replaces conventional diodes with low on-resistance MOSFET control to minimize power loss
• Provides integrated short circuit protection and adjustable trip levels
• Includes status indication for system monitoring

Applications

• Telecommunication power distribution systems
• Datacom systems
• N+1 industrial power distribution

Procurement Notes

Verify the specific suffix IV-T against official datasheets to confirm package type and tape-and-reel configuration. Confirm RoHS compliance status as manufacturing processes may change. Check for End-of-Life notices or Product Change Notifications regarding availability and supply continuity before finalizing procurement plans.

Selection Notes

Select this component for positive high-voltage OR-ing applications requiring transient tolerance up to 100V. Ensure the design accommodates the required bias voltage range of 9V to 75V. Compare performance metrics against lower voltage alternatives like the ISL6146 if system voltages are below 20V to optimize cost and complexity.

Part Context

The ISL6144 series addresses the power dilemma in high-voltage OR-ing configurations. It serves as a direct replacement for lossy diodes in telecommunications and datacom infrastructure. The controller manages parallel power sources efficiently, reducing thermal management requirements compared to traditional diode-based solutions.

Replacement Considerations

Public confirmed substitute part numbers: ISL6146.