Front End Power Supply Reference Design with Cold Crank Operation, Transient Protection, EMI Filter
TIDA-00699
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Key Document

Description

This solution was designed to be a broadly applicable automotive off-battery front end power supply for 10-15W systems. There is a focus on EMI/EMC testing and compliance as well to help designers satisfy the regulatory requirements associated with producing an automotive electronic subsystem.

Features
  • Wide-Vin front end power supply for 10-15W systems
  • Off-Battery operation with reverse battery protection
  • Designed and tested for severe cold-crank operation
  • Designed and tested to ISO 7637-2:2004 Pulse 1, 2a, 3a/b and 5b (clamped load dump)
  • Tested for CISPR25 Conducted and Radiated Emissions

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Schematic/Block Diagram

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Design Guide

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Design Files

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM25122-Q1  Automotive Grade, 3-42V Wide Vin, Synchronous Boost Controller with Multiphase Capability  Step-up (boost)  Sample & Buy Not Available
LM53603-Q1  3.5 to 36Vin, 3 Ampere Synchronous DC-DC Converter for Automotive Applications  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM74610-Q1  Zero iq reverse polarity protection smart diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS3808-Q1  Automotive Catalog Low Quiescent Current Programmable-Delay Supervisory Circuit  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM25122-Q1 Download
LM53603-Q1 Download Download
LM74610-Q1 Download Download
TPS3808-Q1 Download Download
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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 7116 30 Nov 2015
Design files (4)
Title Type Size (KB) Date
ZIP 439 06 Dec 2016
ZIP 626 14 Dec 2015
PDF 257 14 Dec 2015
PDF 222 14 Dec 2015

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