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TUSB213: Can the TUSB213 pad be left floating?

Samuel Lourenco
Intellectual 390 points
Part Number: TUSB213

Hi,

I'm designing a PCB that uses the TUSB213. Can the thermal pad of the chip be left floating, or not connected to ground (albeit soldered)?

Kind regards, Samuel Lourenço

  • 0
    TI__Guru**** 154691 points

    Samuel

    The thermal pad must be connected to the PCB ground to provide the proper ground reference.

    Thanks

    David

  • 0 in reply to David (ASIC) Liu
    Intellectual 390 points

    Thanks, David. This was decisive to create the part library and the schematic. Although I had the pad connected to GND on the PCB layout, I had to change the part symbol to include the extra EXP pin, that must be included (instead of optional) and connected to ground.

    The previous iteration of the library had the PAD and GND pins connected internally, and thus the PAD did not show on the symbol. Unfortunately, I had to change this nonetheless after finding that the pad is not electrically connected to the GND pin on the chip. The end result was the same, since the GND pin is connected to the pad in the schematic.

    Kind regards, Samuel Lourenço