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

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

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Schematic/Block Diagram

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Design Files

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TI Devices (7)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM3880-Q1  Automotive grade 3 rail simple power sequencer with fixed time delay  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS22968-Q1  5.5V, 27mΩ 2-Ch Automotive High-Side Load Switch with Adj Rise Time & Quick Output Discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS51200-Q1  Automotive Catalog Sink/Source DDR Termination Regulator  Power management  Not Available View Design Kits & Evaluation Modules
TPS54122-Q1  Automotive-grade 3A QuietSupply™ Regulator with Integrated DC-DC Converter and Low-Noise LDO  Step-down (buck)  Not Available View Design Kits & Evaluation Modules
TPS54240-Q1  Automotive 3.5V to 42V, 2.5A Buck Converter with Eco-Mode™  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS61071-Q1  Automotive 1.8V to 6V Input Range, 600mA Boost Converter  Step-up (boost)  Sample & Buy Not Available
TPS62262-Q1  Automotive 2V to 6V, 2.25MHz Fixed Frequency 600mA Buck Converter with 1.2V Fixed Output Voltage  Step-down (buck)  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM3880-Q1 Download Download
TPS22968-Q1 Download
TPS51200-Q1 Download Download
TPS54122-Q1 Download -
TPS54240-Q1 Download Download
Download
TPS61071-Q1 Download Download
TPS62262-Q1 Download Download

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Technical Documents

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User guides (2)
Title Type Size (KB) Date
PDF 52 03 Mar 2015
PDF 754 03 Mar 2015
Design files (3)
Title Type Size (KB) Date
ZIP 731 03 Mar 2015
PDF 141 03 Mar 2015
PDF 1162 03 Mar 2015

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