Hi,
I am trying to drive stepper motor by DRV8889-Q1 IC. I have few queries over that please clear.
1. Sleep pin status have to be defined (pulled high) for its working or it can be in float
2. For VREF, Vcc can be provide by external (in board) source or it has to be drive by DVDD only.
3. 479nF 10V capacitor recommended at DVDD. Can I use higher voltage capacitor with same farad rating. And it is little bit far from my IC (around 10mm), is that OK ?
4. Do I really need a bulk capacitor if I am driving my load with external DC regulated power supply. If yes then at which pin 1 or 8.
5. In technical datasheet a cap recommended at VSDO pin .1uF but in same datasheet when I went to PCB layout it shows .01uF cap. Is it really matter for driving load ?
