TPS259474ARPWR

Current Regulation/Management Overview

The TPS259474ARPWR is a single-channel hot-swap voltage controller from the Texas Instruments TPS25947 series, functioning as an electronic fuse. It operates within a supply voltage range of 2.7 V to 23 V and supports a continuous current limit adjustable between 500 mA and 6 A. The device features a typical on-resistance of 28 mΩ and a quiescent operating current of 445 µA. Designed for surface-mount installation, it utilizes a VQFN-HR-10 package (2x2 mm) and functions reliably across an extended temperature range from -40°C to +125°C.

Current Regulation/Management Feature Summary

• Integrated power-fail detection capability for monitoring system health
• Supports hot-swap operations with controlled inrush current management
• Compact VQFN-HR-10 package optimized for high-density PCB layouts

Current Regulation/Management Applications

• Smart electricity meters requiring robust input protection
• USB-Type C systems utilizing linear ORing configurations
• Industrial backplane power distribution networks

Current Regulation/Management Procurement Notes

Verify the specific suffix 'AR' against the official datasheet to confirm pinout and thermal pad configuration. Ensure the ordering quantity aligns with manufacturer reel specifications if bulk procurement is required. Cross-reference the package marking code to distinguish this variant from other TPS25947 family members with different electrical tolerances or pin assignments.

Current Regulation/Management Selection Notes

Select this component when a single-channel solution with a maximum input voltage of 23 V is required. The 28 mΩ on-resistance makes it suitable for applications prioritizing low conduction losses. Consider the adjustable current limit range when designing protection thresholds for downstream loads. Evaluate the VQFN-HR-10 footprint constraints during the mechanical design phase.

Current Regulation/Management Part Context

This part belongs to the TPS25947 family of eFuses, which are designed to replace traditional fuses and discrete MOSFET circuits. The family offers integrated protection features including overcurrent, short-circuit, and reverse-voltage protection. The TPS259474 variant specifically targets applications needing precise current limiting and fast fault response within a compact form factor.

Current Regulation/Management Replacement Considerations

The TPS259474LRPWR is a documented alternative within the same series. Verify that the lead-free ('L') designation does not impact solderability requirements for your specific manufacturing process.