TIDA-020019

Automotive isolated CAN and power front end reference design

TIDA-020019

Design files

Overview

This reference design demonstrates reinforced isolated CAN communication, which is widely used in automotive environments, in a small footprint. In hybrid and electric vehicles (HEV/EVs), a high-voltage network is floating with respect to the chassis ground. Isolation is required for the power and communication channels interfaced between floating high- to low-voltage systems. This reference design has a low transmission delay which reduces the loop delay and supports higher baud rates of the CAN.

Features
  • Integrated CAN and digital isolator (ISO1042-Q1)
  • Low-loop delay (typically 139 ηs) to support high-speed arbitration rates
  • Inbuilt reinforced digital isolation
  • ±70-V bus fault protection
  • Compliant with ISO 11898-2 CAN standard

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.

TIDUEL0.PDF (3965 K)

Reference design overview and verified performance test data

TIDRXY2A.PDF (257 K)

Detailed schematic diagram for design layout and components

TIDRXY3.PDF (54 K)

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

TIDRXY4.PDF (99 K)

Detailed overview of design layout for component placement

TIDRXY6.ZIP (776 K)

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

TIDCF27.ZIP (521 K)

Design file that contains information on physical board layer of design PCB

TIDRXY5.PDF (490 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LMR23610-Q1Automotive Qualified SIMPLE SWITCHER, 4V to 36V, 1A Synchronous Step-Down Converter

Data sheet: PDF | HTML
Isolated CAN transceivers

ISO1042-Q1Automotive, isolated CAN transceiver with 70-V bus fault protection & flexible data rate

Data sheet: PDF
Linear & low-dropout (LDO) regulators

TPS763-Q1Automotive 150-mA, 10-V, low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Transformer drivers

SN6505A-Q1Automotive, low-noise, 1-A, 160-kHz transformer driver with soft start for isolated power supplies

Data sheet: PDF

Technical documentation

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Type Title Date
* Design guide Automotive Isolated CAN and Power Front End Reference Design Dec. 10, 2018

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