TCAN1043A-Q1: Common mode choke requirement

ABKD

Intellectual 260 points

Part Number: TCAN1043A-Q1

Tool/software:

Hello,

Can we avoid common mode choke in CAN bus communication?

What are the advantages of using CM choke at CAN bus, if CM choke not use can we expect any improvement?

1 month ago

0 Ethan Sempsrott 1 month ago

TI__Genius 9367 points

Hi Abhishek,

CMCs are used to meet particular EMC requirements. They help filter out high-frequency noise and ringing on the CAN bus. If strict EMC adherence is not necessary, the CMC can be removed.

Please read this document for further details on chokeless CAN transceivers:

https://www.ti.com/lit/wp/slly020/slly020.pdf

Best,

Ethan

Interface

Interface forum

TCAN1043A-Q1: Common mode choke requirement