Gateway automotive reference design
TIDEP-01022
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Description

Automotive trends are rapidly evolving, and as a result, new domain- and zonal-based gateway architectures are being used to efficiently handle the ever-increasing amount of data coming into and moving throughout the vehicle, and getting sent to the cloud. A properly functioning domain (or zonal) gateway safely and securely facilitates data movement between ECUs within a functional domain/zone and the centralized gateway. The centralized gateway safely and securely moves data between numerous domains/zones of the vehicle.

This TIDEP-01022 automotive gateway reference design (GCARD) is an easy-to-use, 8-layer PCB detailed design for use as a centralized, domain or zonal controller and is based on our Jacinto™ 7 DRA821 processors. It serves as a starting point for OEMs and Tier 1 suppliers to easily and quickly create a fully functional DRA821 solution in the automotive space.

DRA821 processors are high-performance heterogeneous SoCs that integrate legacy automotive connectivity (LIN and CAN) and high-speed interfaces such as PCIe, USB, a 4-port Gigabit Ethernet switch, as well as numerous safety and security features.

This design uses a single PMIC (TPS6594x) power architecture with on board OSPI, eMMC, and LPDDR4 memory, as well as debug functionality. The board has hardware connectors that showcase and support a diverse set of communication protocols including five Ethernet ports, 10 CAN-FD ports, four LIN ports, and a PCIE connector. Headers have also been included for easy access to serial protocols such as SPI, UART, GPIOS, and I²C.

The high levels of integration in DRA821 processors help lower system costs and make the device useful in a wide variety of gateway use cases.

More information on available device capabilities, peripherals, and functional safety and security features is available in the DRA821 data manual.

Features
  • Integrated Ethernet switch and external Ethernetswitch with automotive connectors
  • Connect to PCIe, OSPI, eMMC and Multi CAN / LIN array with wakeup functionality
  • 3200 MT/s LPDDR4
  • Early CAN response
  • Optimized power management via TPS6594x solution
  • Gateway application stack (AutoSAR)

See the Important Notice and Disclaimer covering reference designs and other TI resources.

What's Included

  • Schematics
  • BOM
  • PCB layer plots
  • Assembly drawings


  



Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (10)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
DP83TG720S-Q1  1000BASE-T1 automotive Ethernet PHY with RGMII & SGMII  Ethernet ICs  Sample & Buy View Design Kits & Evaluation Modules
DRA821A  Dual Arm Cortex-A72, 4-port Ethernet switch, and a PCIe controller.  Processors  Sample & Buy View Design Kits & Evaluation Modules
DRA821U  Dual Arm Cortex-A72, quad Cortex-R5F, 4-port Ethernet switch, and a PCIe controller  Processors  Sample & Buy View Design Kits & Evaluation Modules
LM5141  Low Iq, Wide Input Range Synchronous Buck Controller  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TCAN1046-Q1  Automotive High Speed Dual CAN Transceiver  Interface  Sample & Buy View Design Kits & Evaluation Modules
TLIN1022-Q1  Dual Local Interconnect Network (LIN) Transceiver With Dominant State Timeout  Interface  Sample & Buy View Design Kits & Evaluation Modules
TPS22965  5.7-V, 6-A, 16-mΩ load switch with adj. rise time and optional output discharge  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS61088  10-A Fully-Integrated Synchronous Boost Converter  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS62810-Q1  Automotive 2.75-V to 6-V, 4-A step-down converter in a 2mm x 3mm wettable-flanks QFN package  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS6594-Q1  Automotive 2.8 V to 5.5 V, 5 buck & 4 LDO Power Management IC (PMIC)  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
DP83TG720S-Q1 VQFN (RHA)| 36 Download
LM5141 Download Download
TCAN1046-Q1 Download
TLIN1022-Q1 Download
Download
TPS22965 Download Download
TPS61088 Download Download
TPS62810-Q1 VQFN-HR (RWY)| 9 Download Download
TPS6594-Q1 Download

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