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TCA9548A: Thermal Pad connection

Gavin Teague
Intellectual 275 points
Part Number: TCA9548A

Hello

The VQFN variant of the TCA9548A (TCA9548ARGER) has a thermal pad. I cannot find in the datasheet what the thermal pad must be connected to:

GND?

Floating?

Thank you.

  • 0
    TI__Mastermind 21155 points

    Hello Gavin,

    The pad is thermally connected but not electrically connected.  We generally recommend connecting it to ground because is has the least amount of thermal resistance and the most amount of thermal mass. 

    -Francis Houde