eFuses & hot swap controllers

Robust and comprehensive integrated power path protection solutions for your system

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Improve the reliability of your system against overvoltage, short circuit, inrush current and reverse polarity events with our eFuses and hot swap controllers. We’ve taken our single-chip ICs one step further than traditional eFuse devices by implementing discrete protection circuitry for the most robust device and system-level protection. Get started with our eFuse for a tiny, thermally optimized option or choose a hot swap controller with an external pass FET if your design requires more flexibility.

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TPS25985 NEW

4.5-V to 16-V, 0.59-mΩ, 80-A stackable compact eFuse with accurate and fast current monitor

Approx. price (USD) 1ku | 2.88
TPS25990 NEW

2.9-V to 16-V, 0.79-mΩ, 60-A eFuse with digital telemetry controller

Approx. price (USD) 1ku | 3
TPS25981 NEW

2.7-V to 16-V, 10-A, 6-mΩ eFuse with transient overcurrent blanking timer

Approx. price (USD) 1ku | 0.6
TPS1641 NEW

2.7-V to 40-V, 152-mΩ, 1.8-A eFuse with output power limiting

Approx. price (USD) 1ku | 0.6
TPS2597 NEW

2.7-V–23-V, 7-A, 9.8-mΩ eFuse with accurate current monitor and transient overcurrent blanking

Approx. price (USD) 1ku | 0.5

Achieve robust, high power density & lower cost power path-protection designs

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Fast, accurate power-path protection & monitoring

Get fast, accurate protection against various faults with user-configurable threshold and timings, along with monitoring and diagnostic capabilities.

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Simple & efficient design

Eliminate the complexity of selecting and optimizing your pass FET and discrete protection components. With our integrated solutions, you can reduce your printed circuit board (PCB) area by up to 70%.

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Fast time to market

Reduce circuit design and testing time by selecting eFuses that meet the criteria for various safety and performance certification standards such as UL, IEC and VDE.

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Small size & low RON

Design high-density systems and minimize power dissipation, self-heating and bus voltage droop with our small size and low RON eFuses and hot swap controllers.

Technical resources

Application note
Application note
Basics of eFuses
Read this application note to understand the challenges and limitations of discrete circuit protection options in contrast to integrated solutions.
document-pdfAcrobat PDF
Video series
Video series
Utilizing eFuses in your designs
This training shows you how to implement our power-protection devices and the features they offer. These are flexible and reliable devices, protecting against overvoltage, short circuit, inrush current and reverse polarity events.
Application note
Application note
Robust Hot Swap Design
This application note discusses key principles and design considerations to ensure your hot swap application operates safely under all possible conditions.
document-pdfAcrobat PDF

Design & development resources

Calculation tool
Hot Swap Design Calculator Tools

Creating a Hot Swap and/or eFuse design can involve complex formulas and calculations. Simplify the process by entering system requirements such as input voltage range, current, and output capacitance and the calculator will guide the user towards developing a robust design.  The tool may also (...)

Evaluation board
TPS2663x eFuse Evaluation Module

The TPS26630-33EVM allows reference circuit evaluation of TI's TPS2663x eFuse. The TPS2663X devices are 4.5V - 60V, 6A Industrial eFuse with integrated FET, programmable under voltage, over voltage, input reverse polarity, over current and inrush current protection features.

Evaluation board
TPS2661x current loop protector evaluation module
The TPS2661EVM allows reference circuit evaluation of TPS26611 and TPS26612 current-loop protectors. The TPS2661 product is a 50-V, universal (±20-mA, 0-mA to 20-mA, 4-mA to 20-mA) current-loop protector with integrated fixed bipolar 30-mA current limit and output overvoltage (...)

Reference designs related to eFuses & hot swap controllers

Use our reference design selection tool to find designs that best match your application and parameters.