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CSD97394Q4M: About VDD pin

Tsukui Yusuke
Guru 21930 points
Part Number: CSD97394Q4M

Hi,

Customer wants to install a 2.2kΩ resistor on VDD.
In the background, the customer is trying to check the rated power of the resistor.
Could you tell me the maximum value of VDD operating supply current?

Regards,
Yusuke

  • 0
    TI__Prodigy 510 points

    Hi Yusuke,

    Thanks for your interest in the CSD97394.

    VDD bias current is a strong function of switching frequency.  Please refer to Figure 13 in the datasheet for information on typical operating supply current versus switching frequency.  In order to size the power supply for VDD, I would recommend adding 30% margin to the value determined from the graph based on your use case.

    Regards,

    Evan