Polarity Correcting Isolated CAN Reference Design


Design files


A ready to use design that efficiently solves the problem of improper installation by adding antiparallel communication channels and appropriate control signal to enable polarity correction for the Controller Area Network (CAN) bus.

  • Simplifies system installation with use of one control signal to enable polarity correction in case of cross wire fault
  • Discrete isolation enables tailored upgradability with other 16-pin SOIC DW packaged parts
  • Custom isolated power creates high efficiency solution
  • Turbo CAN Transceiver with fast loop times for large networks or fast data-rates
  • ISO7842 - 5.7 KVRMS isolation rating
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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.

TIDR822.PDF (113 K)

Detailed schematic diagram for design layout and components

TIDR823A.PDF (113 K)

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

TIDC493.ZIP (236 K)

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


Includes TI products in the design and potential alternatives.

CAN transceivers

SN65HVD255CAN Transceiver with Fast Loop Times for Highly Loaded Networks

Data sheet: PDF | HTML
Digital isolators

ISO7842Highest isolation rating, quad-channel, 2/2, reinforced digital isolator

Data sheet: PDF | HTML
Load switches

TPS229682-ch, 5.5-V, 4-A, 25-mΩ load switch with adj. rise time and output discharge

Data sheet: PDF | HTML
Transformer drivers

SN6501Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies

Data sheet: PDF | HTML

Technical documentation

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View all 2
Type Title Date
White paper Accelerating automated manufacturing with advanced circuit isolation technology Jun. 22, 2015
Technical article What do CAN bus signals look like? PDF | HTML Jun. 04, 2015

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