topic Re: Failure Modes in TJA1145A causing Bus Off in Other NXP Products

Failure Modes in TJA1145A causing Bus Off

vipinrad — Tue, 28 May 2024 15:05:35 GMT

What are the physical layer failure modes in TJA1145A that could result in the node going to bus off state. I understand all below will affect comms but not necessarily trigger a bus of state. Any comments?

CAN-H/CAN L open

CAN-H/CAN L/both short to batt

CAN-H/CAN L/both short to gnd

CAN-H short to CAN-L

Re: Failure Modes in TJA1145A causing Bus Off

diazmarin09 — Tue, 28 May 2024 18:26:39 GMT

Hello vipinrad,

I hope all is great with you. Thank you for using the NXP communities.

For further information about the CAN failures of the device, I do recommend reviewing the following application note.

https://community.nxp.com/pwmxy87654/attachments/pwmxy87654/other/9025/1/AH1309_v1_1_Application_Hints_TJA1145.pdf

I hope this information helps.

Regards,

David