TPS25961DRVR

Overview

The TPS25961DRVR is a single-channel hot-swap voltage controller and eFuse from Texas Instruments, designed for robust power distribution. It operates within an input voltage range of 2.7 V to 19 V and supports a maximum output current of 2 A. The device features a low on-resistance of 100 mΩ and consumes only 144 µA in quiescent operation. It integrates programmable current limiting, fault interruption, overvoltage protection (OVP), and under-voltage lockout (UVLO). Housed in a compact 6-WSON (2x2) package with an exposed pad, it supports surface-mount installation and functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-side N-channel MOSFET switch with built-in thermal and electrical protection mechanisms.
• Provides precise control over inrush current and output voltage rise times during startup.
• Includes programmable parameters for current limit, fault delay, and overvoltage thresholds.
• Features remote enable functionality for system-level power sequencing and shutdown control.

Applications

• General-purpose hot-swap power distribution in industrial equipment
• Protection circuits for backplane and midplane power rails
• Input protection for embedded systems and communication modules

Procurement Notes

Verify the complete part number including the suffix DRVR to confirm the tape-and-reel packaging configuration. Ensure compatibility with the target PCB footprint for the 6-WSON package. Confirm that the application voltage does not exceed the 19 V maximum rating. Check for moisture sensitivity level requirements if the component has been stored for extended periods. Validate that the selected current limit settings align with the downstream load specifications.

Selection Notes

Select this component when a compact, integrated solution for single-rail hot-swap protection is required. It is suitable for applications needing precise inrush control and programmable fault handling without external discrete components. Consider the 100 mΩ on-resistance for efficiency calculations and the 144 µA quiescent current for low-power standby modes. Ensure the operating temperature range meets the environmental demands of the deployment site.

Part Context

The TPS25961DRVR belongs to the TPS2596x family of hot-swap controllers from Texas Instruments. This series is designed to replace traditional fuse and relay-based protection schemes with active electronic fuses. The device simplifies design by integrating the driver, sense amplifier, and protection logic into a single small-footprint package, reducing board space and component count compared to discrete solutions.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and parameter equivalence with alternative models from other manufacturers before substitution.