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DLP6500FYE: Backside thermal pad electrically connected to anything?

Malte Ahlers
Prodigy 230 points
Part Number: DLP6500FYE

Tool/software:

Hi!

I want to attach a heat sink to the back side thermal pad of a DLP6500FYE. I was wondering if I must electrically isolate the heat sink from the thermal pad in case my heat sink has connection to ground potential. Is the DLP6500FYE's thermal pad electrically connected to any of the device's signals?

Thanks!


Malte

  • +1
    TI__Genius 10300 points

    Hello Malte,

    Thank you for coming to E2E!

    The datasheet shows mounting interface areas in section 6.9 and I've attached below:

    Although, there shouldn't be any internal electrical connections to the "Thermal Interface Area" of the device, I would still advise to have electrical interfacing connections away from the thermal.

    Best,

    Aaron

  • 0 in reply to Aaron Black
    Prodigy 230 points

    Hi Aaron,

    Thank you very much for your reply! In my case, it would be just a connection to ground, as the heatsink might be in contact with the metal construction, which is electrically grounded. I will try to avoid even that, though.

    Best,

    Malte

  • 0 in reply to Malte Ahlers
    TI__Genius 10300 points

    Hello Malte,

    I'm glad to help!

    If necessary, feel free to reach back out to us through E2E with other questions in the future!

    Best,

    Aaron