Re: gEDA-user: wrong pinout lm7912 symbol

["John Luciani" <jluciani@xxxxxxxxx>]

On 9/11/07, Ales Hvezda <ahvezda@xxxxxxxxx> wrote:
> >
> > If someone thinks the attached symbol is ok, I'm pushing it to the repo.
> >
>
> How do you know that this pinout is correct?  What other packages does
> an lm7912 come in other than TO-220?  There isn't a footprint=
> attribute in the original symbol.  My concern is breaking existing
> user schematics.

You should be fairly safe with the pinouts of the LM79xx and LM78xx since
they are older parts and the variety of power dissipation packages is small.

Some of the SMD versions require that you use pin four (the tab) as an
electrical connection (since there is no external connection for pin 2).
These should probably be separate symbols.

(* jcl *)

-- 
http://www.luciani.org


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