Smart eFuse high-side switches

Bringing precision, efficiency, and safety to modern automotive zone architectures

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Our smart eFuse high-side switch portfolio with I2T configurability delivers precise diagnosis and fast response to provide wire-harness protection in zone and power distribution applications. TI's eFuse high-side switches support flexible load settings, reduce system complexity and hardware variation. The digital interface enables over-the-air updates, making these devices core building blocks of the software-defined vehicle.

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High-side switches

Learn more about TI's broad portfolio of high-side switches for off-board load driving in automotive and industrial applications.

High-side switch controllers

For high current loads, browse our high-side switch controllers.

TPS2HCS10-Q1
Smart eFuse high-side switches

Automotive, dual-channel 11.3mΩ smart high-side switch with I2T wire protection, low-Iq mode and SPI

Approx. price (USD) 1ku | 1.337

TPS4816-Q1
Smart eFuse high-side switches

Automotive 100V low IQ high-side driver with I2t, short circuit protection, and diagnostics

Approx. price (USD) 1ku | 2.113

TPS2HCS08-Q1
Smart eFuse high-side switches

Automotive, dual-channel 8.9mΩ smart high-side switch with I2T wire protection, low-Iq mode and SPI

Approx. price (USD) 1ku | 1.697

TPS4812-Q1
Smart eFuse high-side switches

Automotive 100V low IQ high-side driver with bi-directional current monitoring, I2t, and diagnost

Approx. price (USD) 1ku | 2.582

TPS1214-Q1
Smart eFuse high-side switches

Automotive 74V high-side switch controller with low Iq, low power, load wakeup, I2t and diagnostics

Approx. price (USD) 1ku | 1.968

Build smarter and safer automotive power distribution

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Software-defined fuse

Configurable I2T enables precise, fast-acting fault protection tailored to automotive zone needs—boosting safety, efficiency, and system reliability under all load conditions.

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Better energy efficiency

As power budgets become more constrained, our smart eFuse high-side switches cut power loss to enable more energy-efficient zone controllers.

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Comprehensive fault protection and granular diagnostics

With a digital interface, integrated ADC, and fault log, the smart eFuse high-side switches better inform predictive maintenance systems and enables centralized fault management in zone architectures.

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Smart, scalable cross-platform power distribution

Our smart eFuse high-side switches offer scalable protection, remote reprogramming, and enhanced serviceability—enabling over-the-air updates and streamlined design across zonal vehicle platforms.

Technical resources

Application brief
Application brief
New TPS2HCS10-Q1 Switch Solves Challenges to Smart Power Distribution in Zone Co
Learn more about our fully software configurable high-side switch for power distribution applications in zone controllers.
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White paper
White paper
Software-Defined Vehicles Shift the Future of Automotive Electronics Into Gear (Rev. B)
Discover how software-defined vehicles are shifting the future of automotive electronics into gear.
document-pdfAcrobat PDF
Resource
Resource
HSS-SMART-CONFIGURATOR
Configuration tool for the HSS-HCMOTHERBRDEVM and TI's smart fuse high-side switches.

Design & development resources

Evaluation board
Smart fuse evaluation module

The HSS-HCMOTHERBRDEVM and corresponding daughter cards (such as the HSS-2HCS10EVM) are used to showcase and evaluate all features of the Texas Instruments' smart fuse high-side switch portfolio. The motherboard is designed to be used with several different daughter cards enabling the use of a (...)

Daughter card
Unpopulated evaluation module for smart fuse switch portfolio
The HSS-HCS-BLANKEVM is a daughtercard designed to be used with the HSS-HCMOTHERBRDEVM. This daughtercard shows the functionality of our smart fuse portfolio.
Evaluation board
TPS48120QRGERQ1 evaluation module for smart high-side controller

The TPS4812Q1EVM allows reference circuit evaluation of TI's TPS4812-Q1 smart high-side driver. The TPS4812-Q1 is a 3.5V to 95V smart high-side controller and has two strong 2A gate drivers with separate control inputs allowing multiple configurations including a low power path mode, with auto load (...)

Reference designs related to Smart eFuse high-side switches

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