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THVD1410: No load supply current at up to 128kBaud datarate

Prodigy 80 points

Replies: 3

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Part Number: THVD1410

This is a copy of my previous request, but for a different device.

I'm investigating using this component for a low power sensor interface. The plan is to have no termination resistors (i.e. short stub length). I'm referring to Figure 6 of the datasheet. Unfortunately there is no 'Supply Current vs Signal Rate' graph for the unloaded case. For example a competitor's product showing this is the Renesas ISL32603 in figure 27. Can You provide similar data for the unloaded case? Alternatively, is there a formula for calculating this (e.g. quiescent power + Cpd * Vcc^2 * fsw)?

Thanks and best regards,


Stefan

  • Stefan,

    Same answer as in the other thread. Please estimate the power with the equation. If you need some lab data, I could do it with a specific capacitive load.

    Regards,
    Hao
  • In reply to Hao L:

    Stefan,

    Please find the data. Again the test condition is Vcc=3.3V, room temp, DE=H, REB=H, no load. Please let me know if you have more questions.

    data rate (kbps) Icc (mA)
    0 1.59
    9.6 2.14
    38.4 3.73
    115.2 7.58
    250 14.1

    Regards,

    Hao

  • In reply to Hao L:

    Hello Hao,

    thanks for Your measurements, These are a great deal of help for me. From these it looks that for my low power, low data rate application the other part (SN65HVD72) is by far the better choice. So i will close this topic and concentrate on the SN65HVD72.

    Thanks again and best regards,

    Stefan

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