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.

      TIDU818.PDF (781 K)

      Test results for the reference design, including efficiency graphs, test prerequisites and more

      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: PDF | HTML
      Buck converters (integrated switch)

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

      Data sheet: 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: PDF
      DDR memory power ICs

      TPS51200-Q1Automotive Catalog Sink/Source DDR Termination Regulator

      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
      Sequencers

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

      Data sheet: PDF

      Technical documentation

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      View all 2
      Type Title Date
      User guide TIDA-00346 Design Considerations Mar. 03, 2015
      Test report TIDA-00346 Test Results Mar. 03, 2015

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