TPS25940LRVCR

Current Regulation/Management Overview

The TPS25940LRVCR is a single-channel hot-swap voltage controller and electronic fuse from Texas Instruments, designed for automotive applications. It operates within an input voltage range of 2.7 V to 18 V and supports adjustable current limits from 600 mA to 5.3 A. The device features a low on-resistance of 42 mΩ and draws a typical quiescent current of 210 µA. It is housed in a 20-WQFN package with exposed thermal pad and meets AEC-Q100 qualification standards. The component supports operation across a junction temperature range of -40°C to +85°C.

Current Regulation/Management Feature Summary

• Integrated True Reverse Block functionality prevents reverse current flow without external components.
• Supports Device Sleep mode to minimize power consumption during system standby states.
• Includes integrated power fail detection for monitoring load conditions.

Current Regulation/Management Applications

• Automotive infotainment systems
• Telematics control units
• Body control modules

Current Regulation/Management Procurement Notes

Verify the specific suffix 'L' indicates automotive grade (AEC-Q100) and the operating temperature range of -40°C to +85°C. Confirm the package marking matches the 20-WQFN specification. Ensure design compatibility with the 2.7 V to 18 V input range and required current limit settings before finalizing procurement.

Current Regulation/Management Selection Notes

Select this component for designs requiring a single-channel eFuse with integrated reverse blocking capability in an automotive environment. It is suitable where space efficiency is critical due to the compact WQFN-20 footprint. Consider the 42 mΩ on-resistance for thermal management requirements and verify that the 5.3 A maximum current limit aligns with the downstream load protection needs.

Current Regulation/Management Part Context

This part belongs to the TPS25940 family of high-side switches. Unlike non-automotive variants, the 'L' suffix denotes compliance with automotive reliability standards. It shares the core architecture with other TPS25940 models but is optimized for the specified industrial/automotive temperature range and qualification requirements.

Current Regulation/Management Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications against any potential alternative sources independently.

Current Regulation/Management FAQ

Does the TPS25940LRVCR support reverse current blocking?

Yes, it features integrated True Reverse Block functionality to prevent reverse current flow.

What is the maximum input voltage for this device?

The maximum supported input voltage is 18 V.