• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 20 subscribers
  • Views 655 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

SN74LV123A-Q1: Quiescent current data

Hirotsugu Kobayashi
Mastermind 9540 points
Part Number: SN74LV123A-Q1

Hi, team.

Do you have a data of quiescent current by 3.3V of SN74LV123A-Q1?

There is only Max value by the 5.5V in a datasheet.

Best Regards,

  • 0
    TI__Guru* 97046 points
    Hi Kobayashi-san,
    The SN74LV123A-Q1 could draw up to 20uA across process/temp/voltage.

    I could go in the lab and test the device's power consumption under typical conditions (this would not be guaranteed by TI, information only). If you would like me to do this, please give me details on the device's operation in your application (input states, supply voltage, etc).
  • 0 in reply to Emrys Maier
    Mastermind 9540 points
    Hi, Emrys.
    I'd like to know the reference value of Iq by the following condition.

    Supply voltage: 3.3V
    All input pin's are GND.
    All output pin's are Floating.

    Best Regards,
  • 0 in reply to Hirotsugu Kobayashi
    TI__Guru* 97046 points

    Hello Kobayashi-san,

    I have tested the device with the requested conditions (note that Rext/Cext must be left floating or tied to Vcc for this test).

    I found that the device uses approximately 250pA at 25C, as shown in this screenshot of the power supply:


    The spike at the start is when the supply is turned on.  This spike would be larger for a device connected to a capacitor, as the capacitor has to charge from the supply.