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TPS25990: current and voltage accuracy calculation

Ann_Lien
Genius 14360 points
Part Number: TPS25990
Other Parts Discussed in Thread: TPS25985,

Hello expert,

May we know how to calculate the current and voltage accuracy based on single TPS25990 and parallel TPS25990+TPS25985? Do we have excel tool to mention what is related to the accuracy and how can we get the percentage for the accuracy? Thanks a lot!

Best regards,

Ann Lien

  • 0
    TI__Mastermind 38910 points

    Hi Ann,

    Accuracy parameters are already mentioned in the datasheets. What are you exactly trying to calculate?

    Voltage monitoring accuracy will be identical with single device and multiple devices in parallel.

    Effective current monitoring accuracy is calculated using root sum square (RSS) method with multiple devices in parallel. Considering 2% current monitoring accuracy in each device, the effective accuracy will be 2√N, where N is the number of devices in parallel.