Front End Power Supply Reference Design with Cold Crank Operation, Transient Protection, EMI Filter


Design files


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.

  • 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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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.

TIDUB49.PDF (7116 K)

Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


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


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


Includes TI products in the design and potential alternatives.

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Technical documentation

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Type Title Date
* Design guide Automotive Power Frontend With Cold Crank Operation and EMI Filter Design Guide Nov. 30, 2015

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