G'day Anson,The data sheet says vdda should be connected to vdd externally, then I think we should just
Just pulled up the datasheet for this chip.
The absolute max for Vdda is speced as Vddd Â0.5 With a note that Vdda
should be externally shorted to Vddd.
use one regulator vdd, then it will be much easier for the driver, what do you think?