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ISO7763-Q1: Power Dissipation

Saraswathy G
Prodigy 100 points
Part Number: ISO7763-Q1
Other Parts Discussed in Thread: ISO7763,

How to compute the power dissipation of ISO7763 ?

  • 0
    TI__Genius 11735 points

    Hi Saraswathy, 

    Thank you for your question.

    I will check with my team in regards to your question. Can you provide some more information on what information you would like from the power dissipation computation?

    The power ratings table from the datasheet (table 6.5), shown below, has the maximum power dissipation values for side 1, side 2, and both sides. I believe these values are tested with the given test conditions in the table. This may help you get an idea of the power dissipation of the device given the different test conditions.

    I will check with my team regarding the power dissipation so I can give you more information. I will let you know after this weekend.

    Regards,
    Aaditya Vittal

  • 0 in reply to Aaditya V.
    TI__Genius 11735 points

    Hello,

    Thank you for your patience.

    As I mentioned before, The power ratings table from the datasheet (table 6.5), shown below, has the maximum power dissipation values for side 1, side 2, and both sides. These values were tested based on the test conditions shown for the devices in the table. Since these values are tested values, this will give you an idea of maximum power dissipation for the ISO7763-Q1 device.

    Based on these test conditions, you can use the supply voltage and supply current, which is found in Supply Current Characteristics table in the datasheet (Section 6.10), to calculate the power dissipation by using P = I * V.

    For example from the test conditions above, with supply voltage of 5.5V and data rate of 100Mbps Power dissipation = 28.4mA * 5.5V = 157mW.

    Regards,
    Aaditya Vittal