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DRV8462: Current accuracy

Hirotsugu Kobayashi
Mastermind 9540 points
Part Number: DRV8462

Tool/software:

Hi team,

We are considering using it for motors with various current values.

Will the accuracy of 1A change if the full scale is set to 10A or 3A?

Considering full scale, 1A when set to 3A is 33%, and 1A at 10A is 10%, so is it correct to say that the 3A setting is more accurate?

  • +1
    TI__Mastermind 44875 points

    Hi Kobayashi-san,

    Thank you for your question.

    Hirotsugu Kobayashi said:
    Will the accuracy of 1A change if the full scale is set to 10A or 3A?

    Yes it will change. Please see below information in the datasheet. The accuracy will be between -5 % to 4 % for 40 % to 100 % of the full scale current with external VREF input. So for this device in DDW package this range would be 2 A to 5 A and for the DDV package this current range would be 4 A to 10 A.

    Regards, Murugavel