IR2110 shut down pin control

Discussion in 'General Electronics Chat' started by ak52, Nov 5, 2014.

  1. ak52

    Thread Starter Member

    Oct 15, 2014
    145
    4
    Hello everyone,

    I noticed that in the datasheet of IR2110 the SD pin is tied to ground.
    By my understanding if the SD pin is grounded the driver is ON,if not then we can consider the driver as disabled.
    If i would like to control the SD pin from a controller ,what voltage should i give the SD pin in order to disable it.Is it Vdd or Vcc?There is no mention of this in the absolute ratings of this device in the data sheet.

    Thanks in advance ,
    Arun
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,135
    1,786
    Look on page 3 under "Static Electical Characteristics" The parameters are Vih and Vil
    Also note Figures 12 & 13
     
  3. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,507
    2,367
    VDD.
    VDD can typically be 5v or 15v for e.g., in either case if SD is taken to high both outputs are held low, take SD to Common (GND) to enable.
    Max.
     
  4. ak52

    Thread Starter Member

    Oct 15, 2014
    145
    4
    Thanks guys.
    Buy i still have some confusion.
    Both Papabravo and MaxHeadRoom's posts are somewhat contradictory.
    My Vdd is 5v but in page 3 of the datasheet it says Minimum logic "1" voltage is 9.5v !!
    So i will have to amplify the 5v to about 10v for it to work?
     
  5. RamaD

    Active Member

    Dec 4, 2009
    254
    33
    Vih min of 9.5V is for Vdd of 15V. Page 1 also says,
    Logic inputs are compatible with standard CMOS or LSTTL output, down to 3.3V logic.
     
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