IR2109 - Bridge Driver

Discussion in 'General Electronics Chat' started by Skubby SkinnyChubby, Aug 14, 2015.

  1. Skubby SkinnyChubby

    Thread Starter New Member

    Jun 19, 2015
    25
    1
    Hi guys,

    got a question about IR2109 Input pin (datasheet attached)
    if you guys read page 6 Lead Definitions, it stated "Logic input for high and low side gate driver outputs (HO and LO), in phase with HO (referenced to COM for IR2109 and VSS for IR21094)"

    what does this "in phase with HO (referenced to COM for IR2109)" means?

    thanks alot :)
     
  2. tsan

    Member

    Sep 6, 2014
    41
    4
    There is only one input ant that is used to control both upper and lower mosfet. Upper and lower mosfet has to have opposite control as they can't be on at the same time. When input is high upper mosfet is on and lower mosfet is off.
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,555
    2,375
Loading...