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User's Guide
This user guide details the TCAN1046A/V CAN (Controller Area Network) EVM transceiver operation. The
TCAN1046A/V CAN EVM is configurable for the SOIC package version of both TCAN1046A and TCAN1046AV.
This user guide explains the EVM configurations for basic CAN evaluation, and various load and termination
settings.
1
Introduction.............................................................................................................................................................................2
1.1 Overview............................................................................................................................................................................
EVM...........................................................................................................................................................................2
Operation......................................................................................................................................................7
2.2 Using CAN Bus Load, Termination, and Protection Configurations...................................................................................
2.3 Using Customer Installable I/O Options for Current Limiting, Pullup and Pulldown, Noise Filtering................................
3 CAN EVM Configuration for TCAN1046A and TCAN1046AV............................................................................................
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SLLU355 - OCTOBER 2022
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ABSTRACT
Table of Contents
Settings.............................................................................................................................7
Copyright © 2022 Texas Instruments Incorporated
Table of Contents
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Summary of Contents for Texas Instruments TCAN1046A/V CAN
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Page 1: Table Of Contents
This user guide details the TCAN1046A/V CAN (Controller Area Network) EVM transceiver operation. The TCAN1046A/V CAN EVM is configurable for the SOIC package version of both TCAN1046A and TCAN1046AV. This user guide explains the EVM configurations for basic CAN evaluation, and various load and termination settings. -
Page 2: Introduction
4.7nF capacitor to GND at the midpoint, all soldered down. This gives the option to test the other typical termination network on CAN buses. Figure 1-1 shows the EVM board image. SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 3 Introduction Figure 1-1. EVM PC Board Figure 1-2 shows the EVM schematic. SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 4 4.7k AV_TX2 GND2 GND2 AV_RX2 4.7k 4.7k TP33 GND2 TP32 TP34 AV_STB1 AV_STB2 20pF 20pF R59 0 GND2 GND2 GND2 GND2 GND2 GND2 Figure 1-2. EVM Schematic SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 5 Used to apply either VIO or GND to Standby 1 (pin 14). 2-pin jumper 2-pin jumper Used to apply either VIO or GND to Standby 2 (pin 8). SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 6 TP28 TCAN1046AV GND TP29 TCAN1046AV TXD (CAN1) TP30 TCAN1046AV RXD (CAN1) TP31 TCAN1046AV TXD (CAN2) TP32 TCAN1046AV Standby (CAN2) TP33 TCAN1046AV Standby (CAN1) TP34 TCAN1046AV RXD (CAN2) SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
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Page 7: Evm Setup And Operation
This header is arranged to provide a separate ground for each signal pair (TXD/GND and RXD/GND). If the EVM is being used with lab equipment, connect separate cables to these main points via simple 2-pin header SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 8: Using Can Bus Load, Termination, And Protection Configurations
If using split termination, match the resistors. Calculate the common mode filter frequency using: f = 1 / (2πRC). Normally, the split capacitance is SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 9 L1 CM choke. Bus filtering caps transient Bus filter protection Filter noise as necessary for harsh C8/C10 EMC environment. Use filter caps in combination with L2 CM choke. SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
- Page 10 To add extra protection for system level transients and ESD protection, C22/C24 or D6 TVS diode population option via D6 footprint or varistor population via C22/C24 footprint. SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated...
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Page 11: Using Customer Installable I/O Options For Current Limiting, Pullup And Pulldown, Noise Filtering
Table 2-8. TCAN1046AV RC Filter and Protection Lists Device Pin Jumperable Series R Pullup C to GND Description Type Pullup Pulldown TXD1/TXD2 Input R50/R54 R49/R52 PU C30/C31 RXD1/RXD2 Output R51/R57 R48/R53 PU C29/C32 SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... -
Page 12: Can Evm Configuration For Tcan1046A And Tcan1046Av
RXD2 Logic Output WUP Monitor WUP Monitor Low Power Receiver Low Power Receiver GND1 GND1 GND2 GND2 Figure 3-1. TCAN1046A Block Diagram Figure 3-2. TCAN1046AV Block Diagram SLLU355 – OCTOBER 2022 Submit Document Feedback Copyright © 2022 Texas Instruments Incorporated... - Page 13 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 14 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 15 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 16 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 17 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
- Page 18 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2022, Texas Instruments Incorporated...
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