Automotive Precision eFuse Reference Design


Design files


Fuses are used in many products to avoid current surges and the damage that overcurrent may cause. The traditional fuses used in the Automotive space are low in accuracy and response time. The TIDA-00795 Automotive Precision eFuse reference design is a replacement to the traditional fuse offering higher accuracy and features not found in traditional fuses.This eFuse reference design can be used as a building block to implement a multichannel eFuse box. It can also be used in the Body Control Module (BCM) and Electronic Control Unit (ECU).

  • Accuracy: > 97 %
  • Configurable delay time to accommodate inrush current for 10us, 50us & 100us
  • Configurable current limit upto 30A (Scalable >100A)
  • Response time: max 10us (configurable by delay time)
  • Compliance to 12V electrical transients of ISO 7637_2
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Reference design overview and verified performance test data

TIDRL25.PDF (421 K)

Detailed schematic diagram for design layout and components

TIDRL26.PDF (89 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRL27.PDF (173 K)

Detailed overview of design layout for component placement

TIDCC04A.ZIP (1389 K)

Files used for 3D models or 2D drawings of IC components

TIDCC03.ZIP (501 K)

Design file that contains information on physical board layer of design PCB

TIDRL28.PDF (982 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

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Linear & low-dropout (LDO) regulators

LM9036Q-Q1Automotive 50-mA, off-battery (40-V), low-IQ, low-dropout voltage regulator

Data sheet: PDF

Technical documentation

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Type Title Date
* Design guide Automotive Precision eFuse Reference Design (Rev. B) Aug. 22, 2016
Selection guide Current Sense Amplifiers (Rev. E) Sep. 20, 2021
Technical article Precision current measurement enhances electronic power-steering systems PDF | HTML Sep. 19, 2016

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