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ADuC7060/61: Exposed paddle on LFCSP_VQ package

Question asked by V.M. on Aug 23, 2011
Latest reply on Nov 17, 2014 by V.M.

Datasheet Rev.C says (in Table 8 and 9):

The LFCSP_VQ only has an exposed paddle that must be left unconnected.

What does this imply?

 

1.) On PCB footprint do not make a corresponding pad, do not solder the exposed paddle to anything.

 

2.) Have a pad on PCB footprint that the exposed paddle will solder to (for mechanical stability and/or heat dissipation), but do not connect that pad to anything. Parasitic capacitance of this pad to possiblle GND and/or VDD planes does not matter.

 

Which one is correct?

 

I recall seeing a message on a similar topic, but could not find it now. My apologies if this has already been discussed...

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