Part Number:DRV8846
Hi!
We have a customer plan to use DRV8846, but they have some questions as below.
Could you please reply these questions? Customer will use fstep=39.024KHz, stepping level = 1/32, rising and falling edges.
1. In datasheet, fstep max = 250KHz.
If fstep = 250KHz, Tsw = 4us, but toff min = 10us. If Tsw < toff, is this OK? Why? Can it result that current can't decrease timely? Because in toff, there will be 2 step pluse(assumption: rising-edge only).
2. How to choose Decay mode?
Customer asked that since we have AutoTune and why we supply other decay modes to them.
3. How to select tBLANK? It means how to select Torque DAC.
4. Attachment is stepper datasheet that customer will use, how to select RxISEN according stepper datasheet?
Appreciate it for your help!
Best Regards,
Rock Su
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