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TPS7H2201-SP: thermal pad connected to Gnd?

Adam Daluga
Expert 5680 points
Part Number: TPS7H2201-SP

Hello,

I have a question regarding the use of a TPS7H2201-SP. According to the datasheet, the thermal pad underneath the IC is internally connected to ground. Is it a requirement that this ground pad interface with ground on the board, or can we omit that electrical connection? I ask because we are planning on using a thermal interface material between the thermal pad and board which is electrically insulating. I want to make sure that removing that conduction path to ground does not adversely affect the IC operation.

 Thanks,
Adam

  • 0
    TI__Expert 7045 points

    Hi Adam,

    I don't believe this should be an issue for this device, but I am checking with our design team in case there are any hidden design considerations that I am not aware of. I will post an update here once I have more information.

    Thanks,

    Sarah

  • 0
    TI__Expert 7045 points

    Hi Adam,

    The input from our design team is that there should not be much electrical or radiation performance change. Since we haven't taken any data without the thermal pad electrically grounded we can't characterize what any changes may look like, if there are any at all, so it will be a good idea to physically test your solution.

    Thanks,

    Sarah