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Original question:

TPS1663: NC Pins

TPS1663: NC Pins

Martin
Prodigy 80 points
Part Number: TPS1663

why do you set NC 19 and NC 24 to 24V IN and OUT in the eval schematic ?

There is no hint in the datasheet that you should connect the NC signals.

What's with the other NCs ? GND or 24V ?

best regards,

Martin

  • 0
    TI__Guru** 105611 points

    Hi Martin,

    These pins are not connected internally.  We connected NC19 to VIN and NC24 to VOUT to spread the copper for better layout.

    The other NC pins can be connected to device power pad/GND for better thermal performance and to extend copper on top layer.

    Best regards, Rakesh