TIDA-00346

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

TIDA-00346

Design files

Overview

The TIDA-00346 design provides the power supply rails necessary for typical  entry-level application processors in automotive advanced driver assistance systems (ADAS) applications.  The design uses several individual DC/DC voltage regulators as well as load switches and linear regulators (LDOs) to provide fixed-supply voltages to the processing cores and other functions of the system-on-a-chip (SoC). Additional rails for DDR memory supply and termination and a CAN Transceiver are also implemented. Two LM3880 simple power sequencers provide power up and power down sequencing.  The design is optimized for automotive applications and can operate with input voltages from 4V to 18V (transients up to 40V).

Features
  • Wide input voltage range from 4V to 42V (60V optional)
  • Provides power supply rails for entry-level application processor-based  ADAS systems
  • Individual high-efficiency switching regulators for low power consumption and heat generation
  • Voltage sequencing for all supply rails implemented on board
  • Dedicated DDRx memory supply and termination available
  • Circuit is tested and includes design considerations

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.

TIDRD58.PDF (1162 K)

Detailed schematic diagram for design layout and components

TIDRD59.PDF (141 K)

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

TIDRD60.ZIP (731 K)

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

Products

Includes TI products in the design and potential alternatives.

Boost converters (integrated switch)

TPS61071-Q1Adjustable, 600-mA switch, 1200-kHz boost converter in ThinSOT-23 with forced PWM mode

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS54240-Q1Automotive 3.5V to 42V, 2.5A Buck Converter with Eco-Mode™

Data sheet document-pdfAcrobat PDF
Buck converters (integrated switch)

TPS62262-Q1Automotive 2V to 6V, 2.25MHz Fixed Frequency 600mA Buck Converter with 1.2V Fixed Output Voltage

Data sheet document-pdfAcrobat PDF
DDR memory power ICs

TPS51200-Q1Automotive Catalog Sink/Source DDR Termination Regulator

Data sheet document-pdfAcrobat PDF open-in-new 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 document-pdfAcrobat PDF open-in-new HTML
Sequencers

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

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
User guide TIDA-00346 Design Considerations Mar. 03, 2015
User guide TIDA-00346 Test Results Mar. 03, 2015

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