UCC3917DTRG4

Overview

The UCC3917DTRG4 is a positive floating hot-swap power manager manufactured by Texas Instruments. It supports input voltages from 2V to 36V and integrates an N-channel MOSFET driver with programmable current limit, slew rate, and undervoltage lockout thresholds. The device operates in the -40°C to +85°C temperature range and is housed in an 8-pin SOIC package.

Feature Summary

• Integrates a high-side N-channel MOSFET driver for hot-swap applications
• Features programmable current limit and slew rate control
• Includes adjustable undervoltage lockout (UVLO) thresholds

Applications

• Server backplane power distribution
• Telecommunications equipment
• Industrial control systems

Procurement Notes

Verify the component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'G4' indicates RoHS compliance and lead-free status as per Texas Instruments documentation. Ensure the package type matches the required PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component for designs requiring precise control over inrush current during board insertion. It is suitable for systems needing adjustable turn-on times to prevent voltage droop on shared power rails. Consider the integrated MOSFET driver capability when evaluating external component requirements for the target application voltage.

Part Context

This part belongs to the UCC3917 family of positive floating hot-swap controllers. It is designed to manage power delivery safely during system hot-plugging events. The device simplifies design by integrating critical protection features typically found in discrete solutions.

Replacement Considerations

The UCC3917DTR is a non-RoHS compliant alternative within the same series. Verify pin compatibility and electrical specifications if substituting between these variants.