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 In need of urgent assistance. 

Last post Tue, Oct 2 2012 4:47 AM by steve. 5 replies.
Started by Saternal 30 Sep 2012 03:00 PM. Topic has 5 replies and 862 views
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  • Sun, Sep 30 2012 3:00 PM

    • Saternal
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    • Joined on Sun, Sep 30 2012
    • Posts 2
    • Points 70
    In need of urgent assistance. Reply

    Hey everyone so to make it short I have been making a schemathic for school and it appears there is no T805 in the library (its a simple chip with In (leg number 1) out (leg number 2) and com (leg number 3)

     So how can i fix this I tried adding every library with no luck please help me! 

    • Post Points: 20
  • Mon, Oct 1 2012 1:34 AM

    • tmd63
    • Top 200 Contributor
    • Joined on Mon, Jul 23 2012
    • Stonehouse, Gloucestershire
    • Posts 39
    • Points 855
    Re: In need of urgent assistance. Reply

    Your query appears to be flawed. The device I believe you are looking for is a 7805 not T805.

    It is a standard 5V regulator. Have as look in your libraries for regulators or type *7805* in your search.

    The impossible we do straight away. Miracles take a little longer.
    • Post Points: 20
  • Tue, Oct 2 2012 4:10 AM

    • Saternal
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    • Joined on Sun, Sep 30 2012
    • Posts 2
    • Points 70
    Re: In need of urgent assistance. Reply

    EDIT:I found it it was LM7805 so 7805 did not find it...

     now im facing a new problem it does not have a COM(leg number 2) at the bottom how can i add it? 

    • Post Points: 50
  • Tue, Oct 2 2012 4:42 AM

    • budnoel
    • Top 50 Contributor
    • Joined on Tue, Aug 12 2008
    • Rochester, NY
    • Posts 129
    • Points 2,100
    Re: In need of urgent assistance. Reply

    Can you post the Mfr and Mfr PN for the part?

    • Post Points: 5
  • Tue, Oct 2 2012 4:43 AM

    • tmd63
    • Top 200 Contributor
    • Joined on Mon, Jul 23 2012
    • Stonehouse, Gloucestershire
    • Posts 39
    • Points 855
    Re: In need of urgent assistance. Reply

    The COM pin will be there. It may not be displayed.

    What package are you using? Capture CIS or Design Entry HDL

    In either you could try RMB on the device and see if power pins are set to not visible.

    The impossible we do straight away. Miracles take a little longer.
    • Post Points: 5
  • Tue, Oct 2 2012 4:47 AM

    • steve
    • Top 10 Contributor
    • Joined on Fri, Jul 18 2008
    • Woking, Surrey
    • Posts 1,162
    • Points 18,865
    Re: In need of urgent assistance. Reply

    It does but the pin is invisible. Select the part then RMB - Edit Part to see the pin or change it to a visible one. It would automatcially connect to a net called GND if you keep it as invisible.

    All the basics for Capture are available from Help - Learning OrCAD Capture - then click on the OrCAD Capture Tutorial, this explains most of the basics...

    • Post Points: 5
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Started by Saternal at 30 Sep 2012 03:00 PM. Topic has 5 replies.