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Original question:

TPS82085: Issue with example board layout

TPS82085: Issue with example board layout

Hugo Liu
Genius 5095 points
Part Number: TPS82085

Hi Sir,

The datasheet page 20 is show the Package outline TPS82085 is 2.7~2.9 x 2.9~3.1mm(2.8mmx3mm),

But page 21 EXAMPLE BOARD LAYOUT is 2.2+(0.5/2)*2=2.7mm Less than IC size,  Is that correct?

Maybe have Insufficient Solder Risk?

Hugo

  • 0
    TI__Guru**** 150950 points
    Hi Hugo,

    It is best to consult your PCB manufacturer and assembly site to see what works best for their process.

    But let me point out 2 items. The exposed copper (solder mask opening) on page 21 is exactly the same size as each of the 8 pads on page 20. 0.5 x 0.4 mm.

    On page 20, it is shown that there is 0.05mm on each edge between the pin and the IC's edge. So, from the edge of the pads on the left to the right edge of the pads on the right is 2.7 mm nominal.
  • 0 in reply to Chris Glaser
    Genius 5095 points
    Hi Chris,

    Thank you very much.

    Hugo