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SN65HVD3088E: maximum Vod

Hisao Uchikoshi
Genius 14900 points
Part Number: SN65HVD3088E

Hi Experts,

My customer wants to estimate the power consumption so  they are asking about the maximum of Vod.

Do we have any data for max Vod at RL is 54 ohm?

Regards,

Uchikoshi

  • 0
    TI__Mastermind 25705 points

    Uchikoshi,

    Unfortunately the device is not characterized by the max value on this spec. However I think you can use Vcc-0.5V for the estimation, which should have enough margin. Please let me know if you have any further questions.

    Regards,

    Hao 

  • 0 in reply to Hao L
    TI__Genius 14900 points

    Hi Hao,

    Thank you for your reply.

    If we calculate the power consumption by using Vcc-0.5V and 60 ohm, it becomes 4.5V/60 = 75mA which is greater than the recommended condition.

    I don't think this is a actual current. Otherwise, can we consider that it is the case for no load condition when the max becomes Vcc - 0.5 V?

    In that case, we can estimate as below

     

    Regards,

    Uchikoshi

  • 0 in reply to Hisao Uchikoshi
    TI__Mastermind 25705 points

    Uchikoshi,

    You're correct that Vcc-0.5V is conservative estimate with a lot of margin. However please be aware the condition of Figure 5 is typical (5V, 25C), not the worst case. What's the purpose of this estimation? If you want to budget the transceiver power, I suggest you leave enough margin.

    Regards,

    Hao