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Different Voltages in a single circuit - Pullup States

Discussion in 'General Electronics Discussion' started by Xenobius, Aug 13, 2017.

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  1. Xenobius

    Xenobius

    125
    0
    May 15, 2012
    Hi,

    I am designing a simple circuit with a charging IC which takes an input of 5V (usb) and charges a battery. The charging IC (MCP73831) outputs LOW on a state pin when the battery is full. According to the datasheet you should put a pullup resistor on the state pin so its always HIGH until the IC outputs LOW.

    My question is, can I have the pullup with 3V instead of 5V so that it can be directly fed into a micro controller which works @ 3v?

    Thankyou
     
  2. kellys_eye

    kellys_eye

    4,280
    1,146
    Jun 25, 2010
    Yes.
     
    hevans1944 likes this.
  3. Xenobius

    Xenobius

    125
    0
    May 15, 2012
    Thankyou :)
     
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