TCAN1044V

CAN FD Controller

STB

RXD

TXD

CANH

CANL

Port x

RXD

TXD

8

1

4

2

3

7

5

6

5V Voltage

Regulator

(e.g. TPSxxxx)

GND

NC

Optional:

Terminating

Node

Optional:

Filtering,

Transient and

ESD

23

TCAN1044-Q1, TCAN1044V-Q1

www.ti.com

SLLSF17A – AUGUST 2019 – REVISED DECEMBER 2019

Product Folder Links: TCAN1044-Q1 TCAN1044V-Q1

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Copyright © 2019, Texas Instruments Incorporated

9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

9.2 Typical Application

The TCAN1044-Q1 transceiver can be used in applications with a host controller or FPGA that includes the link

layer portion of the CAN protocol. Figure 17 shows a typical application configuration for 5 V controller

applications. The bus termination is shown for illustrative purposes.

Figure 17. Transceiver Application Using 5 V IO Connections

9.2.1 Design Requirements

9.2.1.1 CAN Termination

Termination may be a single 120-Ω resistor at each end of the bus, either on the cable or in a terminating node.

If filtering and stabilization of the common mode voltage of the bus is desired then split termination may be used,

see Figure 18. Split termination improves the electromagnetic emissions behavior of the network by filtering

higher-frequency common-mode noise that may be present on the differential signal lines.