EVM Setup and Operation
8
SLLU296 – August 2018
Copyright © 2018, Texas Instruments Incorporated
TCAN1046V Evaluation Module
Table 4. Protection and Filtering Configuration (continued)
Configuration
Footprint Reference
Use Case
Population and Description
C1/C6 or D1
Transient and ESD protection
To add extra protection for system
level transients and ESD
protection, TVS diode population
option via D1 footprint or varistor
population via C1/C6 footprint.
C9/C15 or D2
To add extra protection for system
level transients and ESD
protection, TVS diode population
option via D2 footprint or varistor
population via C9/C15 footprint.
2.3
Using Customer Installable I/O Options for Current Limiting, Pullup and Pulldown,
Noise Filtering
The CAN EVM has footprints on the PCB for the installation of various filtering and protection options to
adapt the EVM to match CAN network topology requirements if the EVM is being used as a CAN node.
Each digital input or output pin has footprints allowing for series current-limiting resistors (default
populated with 0
Ω
), pull-up or -down resistors (depending on pin use), and a capacitor to GND which
allows for RC filters when configured with a series resistor.
lists these features for each of the
digital input and output pins of the EVM. Replace or populate the RC components as necessary for the
application.
Table 5. RC Filter and Protection Lists
Device Pin
Jumperable
Series R
Pullup and
Pulldown
C to GND
No.
Description
Type
Pullup
Pulldown
1/6
TXD1/TXD2
Input
N/A
N/A
R14/R19
R12/R24 PU
C8/C14
4/7
RXD1/RXD2
Output
N/A
N/A
R17/R23
R13/R24 PU
C10/C13
3
CAN EVM Configuration for TCAN1046V (Factory Installed)
The TCAN1046V device interfaces CAN protocol controllers with the physical bus in accordance to the
ISO 11898 standard. This device is compatible with the ISO 11898 High Speed CAN (Controller Area
Network) Physical Layer standards: 11898-2. This device is designed for use of up to 5 Mbit CAN
systems, and it includes many protection features providing device and CAN network robustness.
