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DRV8885: Itrip

Yuying Ding
Prodigy 10 points
Part Number: DRV8885

Hi team，my customer is using DRV8885.I have some question.

For the current trip accuracy, what means" IRREF = 1.0 A, 20% to 63% current setting, 1% reference resistor,–12.5% 12.5%"

Does it mean that, for example, you set 480mA  and actually measured 420 mA-540 mA? 

  • 0
    TI__Mastermind 37683 points

    Hi Yuying Ding,

    "IRREF = 1.0 A, 20% to 63% current setting, 1% reference resistor,–12.5% 12.5%" means that when regulating between 200mA and 630mA, the I_trip accuracy is +-12%. Any current below 200mA is not guaranteed to have this accuracy. 

    Does it mean that, for example, you set 480mA  and actually measured 420 mA-540 mA?

    -Yes, that is correct.