Automotive 12V/24V Battery Input Protection Reference Design

(ACTIVE) TIDA-01167

Description & Features

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Key Document

Description

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 car, 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 TI 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 (12V, 24V, 48V)
  • Configurable options to support Class A operation during unsuppressed load dump pulses
  • Compliance to ISO7637-2, ISO16750-2

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM2903  Dual Differential Comparator  Amplifiers  Sample & Buy Not Available
LM5060-Q1  High-Side Protection Controller with Low Quiescent Current  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS7A16  60-V, 5-µA IQ, 100-mA low-dropout (LDO) voltage regulator with enable and power good  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM2903 Download Download
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Download -
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LM5060-Q1 Download Download
TPS7A16 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date
PDF 5496 14 Jul 2017
Design files (6)
Title Abstract Type Size (KB) Date
PDF 70 09 Feb 2017
ZIP 269 15 Nov 2016
ZIP 618 15 Nov 2016
PDF 318 15 Nov 2016
PDF 193 15 Nov 2016
PDF 405 15 Nov 2016

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