Automotive Power Reference Design for Low Power TDA3x Based Systems


Design files


This solution was designed to make an integrated, size-optimized power design for ADAS applications using the TDA3x SoC off of an automotive battery input.  By targeting only applications with lower processing needs, we’re able to choose devices and components which are smaller, compared to systems utilizing higher performance processors.

  • Complete TDA3x, DDRx, and CAN power solution
  • Highly-integrated, size-optimized design
  • Off-Battery operation
  • Full power up/down sequencing
  • Designed to meet ISO 7637-2:2004
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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.

TIDUAW5B.PDF (22007 K)

Reference design overview and verified performance test data

TIDUAW6.PDF (2409 K)

Reference design overview and verified performance test data

TIDRI97.PDF (684 K)

Detailed schematic diagram for design layout and components

TIDRI98.PDF (260 K)

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

TIDRI99.ZIP (2344 K)

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.

AND gates

SN74AHC1G08-Q1Automotive, 1-ch, 2-input 2-V to 5.5-V high-speed (9 ns) AND gate

Data sheet: PDF | HTML
Boost converters (integrated switch)

TPS61240-Q12.3-V to 5.5-V input range, 3.5-MHz fixed frequency 450-mA boost converter, AEC-Q100 qualified

Data sheet: PDF | HTML
Buck converters (integrated switch)

LM53603-Q1Automotive 3.5-V to 36-V, 3-A synchronous step-down converter

Data sheet: PDF | HTML
Ideal diode/ORing controllers

LM74610-Q10.48-V to 42-V, zero IQ automotive ideal diode controller

Data sheet: PDF | HTML
Load switches

TPS22968-Q12-ch, 5.5-V, 4-A, 27-mΩ, automotive load switch with adj. rise time and output discharge

Data sheet: PDF | HTML
Multi-channel ICs (PMICs)

TPS54116-Q1Automotive DDR Power Solution with 4-A, 2-MHz VDDQ DC/DC Converter, 1-A VTT LDO and VTTREF

Data sheet: PDF | HTML
OR gates

SN74AHC1G32-Q1Automotive, 1-ch, 2-input 2-V to 5.5-V high-speed (9 ns) OR gate

Data sheet: PDF | HTML

LM3880-Q1Automotive grade 3 rail simple power sequencer with fixed time delay

Data sheet: PDF
Supervisor & reset ICs

TPS3808-Q1Automotive, low-quiescent current programmable-delay supervisor

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide Automotive Power Reference Design for Low-Power TDA3x Based Systems (Rev. B) Jun. 14, 2017
* Design guide TIDA-00530 Test Results Oct. 13, 2015

Related design resources

Reference designs

TIDA-00346 Cost-optimized power supply solution for entry-level core application processor-based ADAS systems

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