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??? 07/08/09 11:23 Modified:   07/08/09 11:23 Read: times	#166861 - Yep, I second that! Use a FET Responding to: ???'s previous message

List of 33 messages in thread

Topic	Author	Date
Driving a 5 v PNP with 3.3 volts pin		01/01/70 00:00
Diagram ?		01/01/70 00:00
Sketch..		01/01/70 00:00
Steve..		01/01/70 00:00
Why push-pull?		01/01/70 00:00
Thanks Rob		01/01/70 00:00
Very much depending on chip		01/01/70 00:00
Yeah, but ...		01/01/70 00:00
Better always add a note for potentially dangerous methods		01/01/70 00:00
Is that my responsability?		01/01/70 00:00
Westermark		01/01/70 00:00
Erik did exmplain		01/01/70 00:00
Sorry Westermark..		01/01/70 00:00
KISS		01/01/70 00:00
If it has not to be a PNP...		01/01/70 00:00
Relay has to be driven..		01/01/70 00:00
since I would never do that ...		01/01/70 00:00
Open drain pulled up to 5V..		01/01/70 00:00
did you read my post		01/01/70 00:00
Deep waters		01/01/70 00:00
OK, more		01/01/70 00:00
I missed this post..		01/01/70 00:00
BC556 would turn on, wouldn't it?		01/01/70 00:00
It wouldn't. Sorry.		01/01/70 00:00
Have you considered a pMOSFET?		01/01/70 00:00
Yep, I second that! Use a FET		01/01/70 00:00
Have you considered that he must drive a 5V relay?		01/01/70 00:00
Does that really matter?		01/01/70 00:00
To what do you connect the source of this pMOSFET??		01/01/70 00:00
It's the switched drain current that does the work		01/01/70 00:00
Of course, it does! But...		01/01/70 00:00
One could also use a "switch" ...		01/01/70 00:00
Yes, that's safe!		01/01/70 00:00

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