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TLE2022A-Q1: Current consumption

na na78
Guru 16770 points
Part Number: TLE2022A-Q1
Other Parts Discussed in Thread: TLE2022

Hi

Our customer is requesting data about current consumption (min, typ) of TLE2022A-Q1.

Do you have it?

BestRegards

  • 0
    TI__Intellectual 1095 points

    Hi,

    it is not possible to answer your question about the current consumption itself, since you have not shared the schematic of the application.

    But if you're asking for the quiescent current, the data sheet provides these values for a supply voltage of 5V and 30V as seen below. The TLE2022 has a max quiescent current of 300uA per channel at 5V and 350uA for a supply of 30V. This does not include the current consumption caused by the load.

    If you need more information regarding the current consumption, you have to share more information about the load (schematics!)

    Best,

    Miriam

  • 0 in reply to Miriam Mesek
    Guru 16770 points
    Hi Miriam

    Thank you for your reply.

    Yes, I'm asking for the quiescent current as you mentioned.
    They request the information of blank part in this table, if any.

    The purpose of it is to estimate the minimum/typical/maximum current consumption of load that connected to main source.

    If these data has not been exsisting unfortunately, it is OK.
    Please tell me accordingly.

    If possible, could you please tell us why min/typ data is not on the datasheet?

    BestRegards
  • 0 in reply to na na78
    TI__Guru* 93105 points

    Hello na na78,

    We do not have any data we can provide specifically showing the Icc distributions for the TLE2022A-Q1.

    The TLE2022A-Q1 datasheet does list typical and maximum quiescent current (Icc) values for supplies of +/-15 V and +5 V as Miriam had noted. However, as noted no minimums are provided but estimates can be made based on the note regarding the "typical" values on datasheet Pg. 14, and the fact that the Icc distribution is typically a normal distribution. The note states, "Typical values presented in this data sheet represent the median (50% point) of device parametric performance." Therefore, there will be an equal amount of devices above and below the typical value. 

    For the TLE2022A-Q1, Vcc = +/-15 V, TA = 25 C

    Typ             Max

    550 uA        700 uA

    The difference between the Max and Typ is 150 uA, and that same difference can be used to estimate of the minimum Icc, or Icc(min) = Icc(typ) -150 uA. Based on this, the estimated Ic(min) would be 400 uA for the +/- 15 V supply condition.

    Then for the TLE2022A-Q1, Vcc = +5 V, TA = 25 C

    Typ             Max

    450 uA        600 uA

    Again, the difference between the Max and Typ is 150 uA, and that same difference can be used to estimate of the minimum Icc, or Icc(min) = Iq(typ) -150 uA. Based on this, the estimated Icc(min) would be 300 uA for the +5 V supply condition. Note that in both supply voltage cases that the Icc(min) is an estimate and not an assured datasheet published number.

    When it comes to production testing for Icc only the maximum is tested. If the measured Icc exceeds the maximum value that device is rejected. However, on the minimum end no test limit is established, or tested for. If the device under tests meets all of the specifications, then the device passes even if  its Icc is at the low end of the distribution. 

    Regards, Thomas

    Precision Amplifiers Applications Engineering