TIDA-01168: Details on Top Side Interface Material

Mitchell

Part Number: TIDA-01168

Hi Team,

My customer would like to know more details on the interface material between the bus bar and the top side of the PCB on page 10 of TIDA-01168?

More specifically, is the bus bar in direct contact with the copper planes (board top side) or is there an interface material to fill in the air gaps (if any)?

I see that the materials and detailed description are included for the bottom side, but want to understand if it’s the same for the top side.

Thanks,
Mitchell

over 4 years ago

0 Jiri Panacek85 over 4 years ago

TI__Intellectual 1450 points

Hi Mitchell,

thank you for your interest in the reference design. We've already had this question.

See the answer here.

I hope this helps. Best regards, Jiri

0 Jiri Panacek85 over 4 years ago in reply to Jiri Panacek85

TI__Intellectual 1450 points

Also, In case that the previous answer is not sufficient - there is not any interface material between the busbar and the PCB (with HASL). This is OK for a prototype but probably not OK for a commercial product.

I suggest using a new construction present in PMP22027 (soon to be released) as below.

0 Mitchell over 4 years ago in reply to Jiri Panacek85

TI__Expert 4915 points

Hi Jiri,

Thanks! Would it be possible to email me with more details on PMP22027?

Thanks,
Mitchell

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TIDA-01168: Details on Top Side Interface Material