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TIDA-020079

Zone reference design

TIDA-020079

Design files

Overview

This reference design demonstrates key functions of next-generation zone control modules including power distribution, load actuation and in-vehicle networking. The design highlights functional safety-compliant PMIC and microcontroller (MCU) design, redundant power supply management with ideal diode controllers, and smart eFuses for safe power distribution. The design also features various options for load actuation expected in zone control modules, such as high-side drivers, motor drivers, configurable drivers, and a Class-D audio amplifier. The zone reference design showcases a variety of communication protocols, such as Ethernet, CAN and LIN and enables emerging trends in vehicle networking technology such as Ethernet AVB, 10BASE-T1S and CAN FD Light.

Features
  • MCU with integrated Ethernet switch to optimize Ethernet ring topologies by implementing the following hardware protocols: 802.1Qav, 802.1Qbv, 802.1cb (partial), 1588 TE and 802.1Q ALE
  • AVB Ethernet audio support with Ethernet PHY hardware time stamping and integrated media clock adjustment
  • ASIL D-rated MCU and PMIC with system Limp Home Mode (LHM) capability
  • Low-power mode with wake from Ethernet, CAN, LIN, smart eFuses, and MSDI off-board switch inputs
  • Optimized microcontroller GPIO:
    • SPI daisy chain of smart eFuses and motor drivers
    • SPI and I2C IO expanders
Automotive
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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.

TIDUFB5.PDF (430 K)

Reference design overview and verified performance test data

Products

Includes TI products in the design and potential alternatives.

Arm Cortex-R MCUs

AM263P4-Q1Automotive quad-core Arm® Cortex®-R5F MCU up to 400MHz with real-time control and expandable memory

Data sheet: PDF | HTML
Brushed DC (BDC) motor drivers

DRV8245-Q1Automotive 40-V, 32-A H-Bridge driver with integrated current sensing and feedback

Data sheet: PDF | HTML
Ethernet PHYs

DP83TG721S-Q1Automotive, 1000BASE-T1 Ethernet PHY with TC-10, 802.1AS, Advanced TSN and AVB features

Data sheet: PDF | HTML
High-side switches

TPS2HCS10-Q1Automotive, dual-channel 10-mΩ smart high-side switch with I²T wire protection, low IQ mode and SPI

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

TPS653860-Q1Automotive 2.3-V to 36-V, 2.8-A power management IC (PMIC) for safety-relevant applications

Data sheet: PDF | HTML
Multi-switch detection interface (MSDI) ICs

TIC12400-Q1Automotive 35-V multi-switch detection interface (MSDI) with SPI & integrated ADC

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Design guide Zone Reference Design Dec. 13, 2024

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