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Date: Mon, 28 May 2012 23:21:13 +0200
From: Gabriel Paubert <paubert AT iram DOT es>
To: geda-user AT delorie DOT com
Subject: Re: [geda-user] TPS40210 thermal pad
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On Mon, May 28, 2012 at 01:16:59PM -0700, Andrew Poelstra wrote:
> 
> Hey all,
> 
> Does anyone have experience with the TPS40210 switching power
> supply? It is a fairly new chip from TI.
> 
> My question is: can I connect the thermal relief pad to GND?
> The datasheet says nothing about internal connections to the
> thermal pad.

Indeed. But look at example 1, they have a "mysterious" pin 
number 11 named PwPd (which can only be the thermal pad) which 
is connected to ground.

So I'd say that you can connect it ground, whether
it is electrically connected to ground inside the chip
or not is irrelevant (easy to check with a low voltage
ohmmeter).

	Gabriel