At 09:28 AM 30/07/2009, alan smith wrote:

>sometimes you simply stare at the data 
>sheet...thinking...hmmm...doenst make sense but it should.  So for 
>example I was looking at the datasheet for the ULN2803 located at
>
>http://www.st.com/stonline/books/pdf/docs/1536.pdf
>
> >From what I gather, the different flavors are discussing the input 
> control voltage, not whats being switched?  Client is using the 
> 2803A, being driven from a PIC and is using it to switch 12V 
> relays. Now they want to change to 24V relays...the part is rated 
> on the transistors to 50V so shouldnt be a problem...right?  I just 
> wanted to make sure I was reading the datasheet correctly, for 
> those who have used this part in the past

Yes, you are correct.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com




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