Not getting the full output from pins

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  1. - 1st August 2011, 15:51 #15
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    Bruce
    Bruce is offline Prolific Poster
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    Default Re: Not getting the full output from pins

    As Charles mentioned you would be better off going with the PIC as a low-side driver, but the best route would be to use some cheap low-side driver like a BS170 MOSFET.

    Switching from one PIC type to the next may not always guarantee it's going to work from one to the next if it's operating border-line.

    And a quick look at the relay datasheet does not show they have internal diodes. You will for sure want a flyback diode across those relay coils.
    Last edited by Bruce; - 1st August 2011 at 16:15. Reason: internal diodes
    Regards,

    -Bruce
    tech at rentron.com
    http://www.rentron.com
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