TIDA-01167

Automotive 12-V/24-V Battery Input Protection Reference Design

TIDA-01167

Design files

Overview

Automotive battery power supply lines are prone to transients while running the system. Typical protections required are overvoltage, overload, reverse polarity and jump start. During the life of a vehicle, the alternator may be replaced with a non-OEM part. The after-market alternator may have different or no load dump protection which could lead to damaging the electronic control unit (ECU). This reference design provides protection to handle these potential unsuppressed load dump pulses (12 V and 24 V) with hardware control. Class-A operation may be attained during unsuppressed load-dump pulses.

Features
  • Wide-input protection voltage range
  • Scalable to multiple battery topologies (12 V, 24 V and 48 V)
  • Configurable options to support Class-A operation during unsuppressed load-dump pulses
  • Compliance to ISO7637-2 and ISO16750-2

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.

TIDUC41A.PDF (5496 K)

Reference design overview and verified performance test data

TIDROP5.PDF (405 K)

Detailed schematic diagram for design layout and components

TIDROP6A.PDF (70 K)

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

TIDROP7.PDF (193 K)

Detailed overview of design layout for component placement

TIDROP9.ZIP (618 K)

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

TIDCCW5.ZIP (269 K)

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

TIDROP8.PDF (318 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Comparators

LM2903Dual differential comparator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TPS7A16100-mA, 60-V, ultra-low-IQ, low-dropout (LDO) voltage regulator with power good and enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
eFuses & hot swap controllers

LM5060-Q1Automotive 5.5-V to 65-V high side protection controller

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Automotive 12- and 24-V Battery Input Protection Reference Design (Rev. A) Jul. 14, 2017

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