For the 555 timer chip, do I need to discharge the caps when i switch off?

Discussion in 'General Electronics Chat' started by RiG615, Dec 4, 2008.

  1. RiG615

    Thread Starter Active Member

    Nov 13, 2008
    50
    0
    For the 555 timer chip, do I need to discharge the capacitors when i switch the power off?

    it ends going low, so does that mean the cap will be discharged after a time period or five?


    ***also for R3 how high of resistor can i use? (would a megohm work??)

    heres a diagram, im using different R and C values though
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,535
    Nope. The startup for this chip discharges the caps.
     
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