TPS259470ARPWR

Current Regulation/Management Overview

The TPS259470ARPWR is a hot-swap voltage controller from the TPS25947 series, featuring an integrated eFuse with 28-mΩ on-resistance and a 5.5-A current limit. It operates within a 2.7-V to 23-V input range and supports reverse polarity protection up to -15 V. The device includes adjustable overvoltage clamping or lockout, active current limiting, and thermal shutdown. Packaged in a 10-pin VQFN-HR (2x2 mm) for compact designs.

Current Regulation/Management Feature Summary

• Integrated back-to-back FETs provide true reverse current blocking and ideal diode behavior for power multiplexing applications.
• Configurable overvoltage protection offers selectable clamping thresholds or adjustable lockout to safeguard downstream loads.
• Active current limiting with programmable transient blanking allows controlled inrush handling and precise fault response.

Current Regulation/Management Applications

• Power multiplexer and OR-ing circuits requiring near-zero DC reverse current
• Smart electricity meters needing UL 2367 certification and robust rail protection
• USB-Type C systems utilizing fast role swap linear ORing configurations

Current Regulation/Management Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm exact electrical characteristics and package variations. Ensure compatibility with required thermal management solutions given the small form factor. Confirm that the selected variant meets all necessary safety certifications for your target application environment.

Current Regulation/Management Selection Notes

Select this component when designing systems requiring high integration and minimal external components for power rail protection. Consider the adjustable current limit range and overvoltage threshold options to match specific load requirements. Evaluate the thermal performance within the VQFN-HR package relative to expected operating currents and ambient conditions.

Current Regulation/Management Part Context

This device belongs to the TPS25947 family of highly integrated circuit protection solutions. It shares core architecture with variants like TPS259472A and TPS259474L, differentiated primarily by internal configuration parameters. The family targets industrial and consumer electronics requiring reliable power distribution and fault isolation.

Current Regulation/Management Replacement Considerations

Official evaluation modules such as TPS25947EVM support testing for related parts including TPS259470L, TPS259472A, and TPS259474L. Verify pinout and parameter equivalence before substituting with other members of the TPS25947 series.

Current Regulation/Management FAQ

How does the device handle reverse current flow?

It uses integrated back-to-back FETs to block reverse current, enabling ideal diode operation suitable for power multiplexing.

What overvoltage protection modes are available?

Users can select between fixed-threshold overvoltage clamping or adjustable overvoltage lockout via pin selection.