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BUF634 - connection of SO-8 NC pins for heat sinking?

Alexander Templeton
Prodigy 20 points
Other Parts Discussed in Thread: BUF634

The BUF634 in SO-8 is very nice (if a little pricey), but the NC pin usage is unclear. For keeping the die temperature down, can/should I connect the NC pins to GND, or to V- as in the TO-220 & DPAK??

Thx!

  • 0
    Guru 21975 points

    Alexander,

    The "NC" pins on the SO-8 package are not connected internally. You can connect them to any convenient node or they can be left unconnected. To increase heat dissipation, the landing pad area and connection leading from it should be maximized. Area is the key, not where they are electrically connected.

    Regards, Bruce.