On Wed, 05 Jun 2002 09:43:03 -0700, Harold M Hallikainen wrote:
>Remembering that the ideal design has zero parts, I'd suggest
>powering the part off the port pin. That's assuming the load is=
 less
>than 25mA (which you say it is), and is a 5V load.
>For larger loads that are not 5V, I've used the Micrel MIC2514.=
 It's
>a nice high side switch with overcurrent protection.

The zero part count solution is appealing for both simplicity,=
 cost,
and board real estate. Having no experience to draw on I just=
 wasn't
sure if there might be any issues with noise getting back into=
 the PIC
via the port pin circuits, etc.

All loads are 5 volt and all of them together are less than=
 25mA.

Tim

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