quick 555 question

Discussion in 'General Electronics Chat' started by magnet18, Mar 15, 2012.

  1. magnet18

    Thread Starter Senior Member

    Dec 22, 2010
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    124
    I accidentally just connected vcc to pin 5 of the 555 (control), rather than pin 4
    can anyone tell me from experience if this is gonna fry it?
    :p
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    It should be ok.
     
  3. debjit625

    Well-Known Member

    Apr 17, 2010
    790
    186
    As per datasheet the control pin's (pin 5) maximum input voltage is same as Vcc,so it will be ok.
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
    If you look it is a 5KΩ connection either way, if memory serves.

    Vcc and Gnd backwards is a different proposition, and pain filled memory serves. It is also instantaneous.
     
  5. magnet18

    Thread Starter Senior Member

    Dec 22, 2010
    1,232
    124
    thanks guys
    I have the chip pretty well integrated into and bound up in a circuit, last night I went to test and realized my mistake, I wanted to get opinions on the probable result before trying to tear it out

    Looks like it will be OK :)
    Thanks guys :)
     
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