test an IC

Discussion in 'General Electronics Chat' started by pureenchantment, Apr 23, 2012.

  1. pureenchantment

    Thread Starter New Member

    Feb 17, 2012
    2
    0
    Is there a way to test if an IC is "dead", or if its me going wrong with the pin connections?
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,440
    3,361
    Please post the part number.
     
  3. panic mode

    Senior Member

    Oct 10, 2011
    1,320
    304
    common way to test ICs is to plug them into working circuit.
    this is obviously dependent on used IC.
     
  4. wmodavis

    Well-Known Member

    Oct 23, 2010
    737
    150
    There is!

    Power it as spec'd in the spec sheet. Note if supply current is within spec as spec'd in the spec sheet.
    Apply appropriate inputs as spec'd in the spec sheet.
    Observe outputs for appropriate values as spec'd in the spec sheet.
    If Icc or some output is not within spec sheet range the IC may be bad or your setup/measurement technique should be reviewed.

    Notice my emphasis! The spec sheet is your friend!
     
  5. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Also more often called datasheet.
     
  6. pureenchantment

    Thread Starter New Member

    Feb 17, 2012
    2
    0
    Many thanks to each and all. I fully appreciate the"spec" and "data" sheets in fact that is where most of my limited knowledge comes from. I have returned to this one time hobby for the sake of my grandchildren. Having got this 4029 sort of working, I realise my limitations to be eyesight (wires in the wrong holes on the breadboard), and greymatter (Takes more time to remember how easy it once was). Thanks again.
     
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