TPS650861: Routing of DRVHx and SWx

Dice-K

Mastermind 7480 points

Part Number: TPS650861

Hi support team,
I have a question about "SWCS142".

Page-131
"Route DRVHx and SWx as a differential pair."

Does this mean that DRVHx and SWx should be routed near, parallel and in the same layer?

Regards,
Dice-K

over 4 years ago

0 Kevin LaRosa over 4 years ago

TI__Genius 17380 points

Hello,

That is the ideal case - the reality is that the goal should be to minimize the size of the loop, especially if the distance is long. If the distance is short, it's rather unimportant.

Here is an article explaining the goals: https://www.ti.com/lit/pdf/slyy077

0 Dice-K over 4 years ago in reply to Kevin LaRosa

Mastermind 7480 points

Hi Kevin
Thank you for your reply.

I have understood that routing that reduces the area surrounded by the DRVH line and SW line is good.

Best regards,
Dice-K

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TPS650861: Routing of DRVHx and SWx