Re: [ts-7000] Controlling an ATX power supply from a TS7200

["Jim George" <>]

On Wed, Nov 5, 2008 at 2:05 PM, Yan Seiner <> wrote:
> I'm pretty much a peasant when it comes to hardware. I need to be able
> to turn an ATX power supply on and off with the output available on a
> TS7200.
>
> On an ATX PS, shorting pin 14 to ground turns the PS on. Disconnecting
> the pin turns the PS off.
>
> How do I do this from a TS7xx0? I have DIO at 3.3 V and serial lines
> at 5V or 7V. I'm guessing I need an opto-isolator but the circuit
> itself is a mystery to me.
>
> Can anyone clue me in?
>
> Thanks,
>
> --Yan

The 7250 has a single open-drain output capable of sinking 1A on DIO8.
-Jim

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