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DRV8812: Risense of DRV8812

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Part Number: DRV8812

Dear Sirs,

My customer asked us about Risense of DRV8812.

Customer is measuring Ichop by changing Risense from 0.5 Ω to 0.68, 0.47.
So setting current regulation to 38% with this setting will result in a value different from the calculated value of the data sheet formula.
Please let me know if there are restrictions on the Risense.
When Risense = 0.47 Ω, the waveform of the output current is also disturbed.
Please also tell me about this cause.

Best Regards,

Y.Hasebe


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