TCAN337: CAN BUS Configuration

Yannick DELMAS

Part Number: TCAN337

Tool/software:

Hello,

I want to make a device with 21 nodes, all with a TCAN337. All are connected on a same CAN bus with 120 Ohms at the beginning and at the end of the bus.

To you think this configuration is OK ?

Best regards

3 months ago

0 Michael Ikwuyum 3 months ago

TI__Guru 50496 points

Hi Yannick,

Yes, this is okay, thanks.

Best Regards,

Michael.

0 Yannick DELMAS 3 months ago in reply to Michael Ikwuyum

Prodigy 20 points

OK, thank you.

So this configuration is OK ?

+1 Michael Ikwuyum 3 months ago in reply to Yannick DELMAS

TI__Guru 50496 points

Hi Yannick,

Yes, this is okay with node count less than 30, termination of 120 ohms at both ends, stub lengths as minimal as 10 cm or less will help minimizing reflections for signal integrity, total bus length of 2 m is also reasonable for CAN speeds, thanks.

Best Regards,

Michael.

0 Celine Mathis 3 months ago in reply to Michael Ikwuyum

Prodigy 20 points

I have a similar application with 8 nodes, but my stups are between 30-50cm? With every stup the impedance decrease.

Regards

Céline

0 Michael Ikwuyum 3 months ago in reply to Celine Mathis

TI__Guru 50496 points

Hi Celine,

Could you please clarify your ask? Thanks.

Best Regards,

Michael.

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TCAN337: CAN BUS Configuration