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Automotive Wide Vin Front-End Power Reference Design w/Cold Crank Operation & Transient Protection
TIDA-01179
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Key Document

Description

The TIDA-01179 reference design is an automotive front-end power supply that is able to supply 30W maximum output for the 12V car battery. The first stage is a buck-boost DC/DC converter that maintains a stable 15V output voltage over the full DC range of the 12V battery conditions specified in ISO 7637-2 and ISO 16750-2 standards. The second stage is a compact buck converter that enables up to 20W output.

Features
  • Wide-Vin buck-boost converter during very low dips in input voltage of 3V to 36V DC, 42V transient
  • Designed and tested for ISO 7637-2:2004 Pulse 1, 2a and 3a/b severe conditions (level IV)
  • Designed and tested for severe battery-cold-crank operations (ISO16750-2 level III)
  • Tested for CISPR25 conducted EMI (class 5)
  • This circuit design is tested, shippable and includes hardware only

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Schematic/Block Diagram

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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
CSD18563Q5A  60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.8 mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
LM5118-Q1  3-V to 75-V wide VIN, current mode non-synchronous buck-boost controller  Buck-boost & inverting regulators  Sample & Buy View Design Kits & Evaluation Modules
LM74610-Q1  0.48-V to 42-V, zero IQ automotive ideal diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS54540-Q1  42V, 5A, Step-Down Regulator with Integrated High Side MOSFET  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18563Q5A VSONP (DQJ)| 8 Download
LM5118-Q1 Download Download
LM74610-Q1 Download Download
TPS54540-Q1 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 11218 17 Oct 2016
Design files (6)
Title Type Size (KB) Date
ZIP 524 25 Oct 2016
ZIP 953 25 Oct 2016
PDF 2162 25 Oct 2016
PDF 376 25 Oct 2016
PDF 76 25 Oct 2016
PDF 711 25 Oct 2016

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