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
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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.

TIDUC41A.PDF (5497 KB)

Reference design overview and verified performance test data

TIDROP7.PDF (194 KB)

Detailed overview of design layout for component placement

TIDROP6A.PDF (70 KB)

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

TIDROP9.ZIP (619 KB)

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

TIDCCW5.ZIP (270 KB)

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

TIDROP8.PDF (319 KB)

PCB layer plot file used for generating PCB design layout

TIDROP5.PDF (406 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

eFuses & hot swap controllers

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

Data sheet: PDF | 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: PDF | HTML
Comparators

LM2903Dual differential comparator

Data sheet: PDF | 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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