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DS90UB927Q-Q1: Thermal Pad Dimensions of RTA Package?

Part Number: DS90UB927Q-Q1

What are the dimensions of the thermal pad on the RTA package for DS90UB927Q-Q1?

  • Hey Mark,

    Strange that this isn't in the datasheet, I'll have to get that modified. Anyway, the package type you are interested in is the WQFN RTA package with specifications as follows:

    You can find the PDF mechanical drawing here

    If you ever need to find a package again you can look at the TI Support Site for package lookup, it's a pretty cool tool many don't know exist. 

    If this answered your question please verify the solution below by hitting the green verification button, helps others to find the solution more quickly! If you have additional questions or concerns send them along and I will try my best to get them answered for you.

    Best Regards,

    Nick

  • Nick,

    The issue is the 4,50mm is marked as a reference dimension only and Note D says to consult the datasheet for "details regarding the exposed thermal pad dimensions." That implies there potentially could be a difference in information from the datasheet to the RTA package drawing.
  • Hey Mark,

    You're correct about that dimensioning. I think these documents should be more to your liking, I've included the thermal pad info and recommended land pattern too. I found the 3D model as well but it's a .bxl which I have no way of opening so I can't look at it, 3D file is located here. You'll have to try and see if that helps or provides additional insight.

    If this answered your question then please hit the green answer verification button below to help others find the solution more quickly! If you have additional questions feel free to send them my way.

    Best Regards, 

    Nick

    Thermal Pad Dimensions:

    Land Dimensions: