TPS25942ARVCR

Current Regulation/Management Overview

The TPS25942ARVCR is a single-channel hot-swap voltage controller and eFuse from Texas Instruments, housed in a 20-WQFN package. It operates within an input voltage range of 2.7 V to 18 V and supports a maximum output current of 5.3 A. The device features adjustable current limiting between 600 mA and 5.3 A with ±8% accuracy. It includes integrated reverse current protection, power fail detection, and a low quiescent supply current of 210 µA. The component is rated for junction temperatures from -40°C to +125°C.

Current Regulation/Management Feature Summary

• Integrated reverse current protection prevents backflow when the load voltage exceeds the input voltage.
• Configurable current limit allows precise control over maximum output current via external resistor programming.
• Built-in power fail detection monitors input voltage status and signals fault conditions.

Current Regulation/Management Applications

• Hot-swap insertion into live backplanes or system buses
• Power distribution units requiring individual channel protection
• Server and storage systems needing controlled power sequencing

Current Regulation/Management Procurement Notes

Verify the specific suffix 'RVCR' against the manufacturer's official datasheet to confirm the exact reel quantity and tape-and-reel specifications. Ensure the ordering part number matches the required temperature grade and package variant. Cross-reference the component marking code with the latest production data to avoid counterfeit parts. Confirm RoHS compliance status through the official product page before finalizing procurement orders.

Current Regulation/Management Selection Notes

Select this component for applications requiring high-side switching with precise current regulation. It is suitable where reverse current blocking is critical to protect upstream power sources. Consider the 20-WQFN package size for space-constrained designs. Evaluate the thermal performance requirements based on the expected load current and ambient operating conditions to ensure reliable operation within the specified temperature range.

Current Regulation/Management Part Context

This device belongs to the TPS25942A series of hot-swap controllers. It serves as a robust solution for managing power delivery in complex electronic systems. The series offers various configurations to meet different current and voltage requirements. It integrates advanced protection features typically found in discrete solutions into a compact monolithic IC.

Current Regulation/Management Replacement Considerations

Consult the official TI selection guide for direct pin-compatible alternatives within the TPS2594x family. Verify that any substitute part maintains the same input voltage range and current limit capabilities. Check for differences in package dimensions or thermal characteristics if replacing the footprint is not an option.

Current Regulation/Management FAQ

Does the TPS25942ARVCR support reverse current blocking?

Yes, the device integrates reverse current protection to prevent current flow from the output back to the input when the load voltage is higher than the input voltage.

How is the current limit configured?

The current limit is adjustable via an external resistor connected to the ILIM pin, allowing setting values between 600 mA and 5.3 A.