DRV8462: Silent Step decay

Hi Kitamura-san,

The IFS current for DDW package is 5A and IFS current for DDV package is 10A at VREF = 3.3 V. So this formula could be broken down to, KP = IFS * 2*π*UGB*L_MOTOR / VM. Regardless, it should not matter as long as the formula is treated as suggested in the datasheet. The numbers are constants for the corresponding devices mentioned. What is the specific reason for this question? Does the customer have a specific concern? 

Regards, Murugavel 

Hi Murugavel,

Thanks for comment.

Murugavel4637 said:

So this formula could be broken down to, KP = IFS * 2*π*UGB*L_MOTOR / VM.

Let me make sure. According to your comments above, if we use resistor divider to create VREF and 3.3V /2=1.65V is input to VREF with DDW package. IFS=2.5A.
In this situation, can we calculate Kp as;

Kp = 2.5*2*pi*UGB*L_motor/VM? - is it correct?

best regards,
Yuto

Cleared our questions. thank you!

Thank you!