TIDA-01487

Isolated CAN Flexible Data (FD) Rate Repeater Reference Design

TIDA-01487

Design files

Overview

CAN and CANopen are legacy Fieldbus protocols used in many applications in factory automation. Whenever high voltage can damage the end equipment, there is need for isolation. This isolated CAN flexible data (FD) rate repeater reference design adds electrical isolation between two CAN bus segments. The CAN frames on either bus segment side are repeated to the other side. The CAN transceiver and arbitration logic in this design support CAN FD speed up to 2 Mbps. The reference design is supplied by a wide-range voltage supply between 6 V to 36 V.

Features
  • Isolated CAN FD transceiver with 3000-VRMS isolation rating
  • Support classic CAN and 2-Mbps CAN FD
  • Single 24-V industrial supply
  • Wide-supply voltage range of 5 V to 36 V
  • Onboard generation of isolation voltages

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.

TIDUDB5A.PDF (1936 K)

Reference design overview and verified performance test data

TIDRSA3A.PDF (480 K)

Detailed schematic diagram for design layout and components

TIDRSA4A.PDF (65 K)

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

TIDRSA5A.PDF (154 K)

Detailed overview of design layout for component placement

TIDRSA7A.ZIP (1319 K)

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

TIDCDQ7A.ZIP (477 K)

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

TIDRSA6A.PDF (724 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AND gates

SN74LVC2G082-ch, 2-input, 1.65-V to 5.5-V AND gates

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

LM51663V-65V Input, 500mA Synchronous Buck Converter With Ultra-Low Iq

Data sheet document-pdfAcrobat PDF open-in-new HTML
CAN & LIN transceivers & SBCs

TCAN1042HFault Protected CAN Transceiver With Flexible Data-Rate

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital isolators

ISO7721Robust EMC, dual-channel, 1/1, reinforced digital isolator

Data sheet document-pdfAcrobat PDF open-in-new HTML
ESD & surge protection ICs

TVS330033V flat-Clamp surge protection device

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inverting buffers & drivers

SN74LVC2G042-ch, 1.65-V to 5.5-V inverters

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

LP3985150-mA, low-dropout voltage regulator with bypass & enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
NAND gates

SN74LVC2G1322-ch, 2-input, 1.65-V to 5.5-V NAND gates with Schmitt-Trigger inputs

Data sheet document-pdfAcrobat PDF
Noninverting buffers & drivers

SN74LVC2G072-ch, 1.65-V to 5.5-V buffers with open-drain outputs

Data sheet document-pdfAcrobat PDF open-in-new HTML
OR gates

SN74LVC32A4-ch, 2-input, 1.65-V to 3.6-V OR gates

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transformer drivers

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

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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* Design guide Isolated CAN FD Repeater Reference Design (Rev. A) Apr. 13, 2018

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