Low voltage stepper drivers on ramps / other controller boards

I am working on a very very tiny delta printer and wish to use nema 11's (yes, it's that small) Most of them operate at 3.5v so any drivers normally used for 3d printers won't work. The DRV8834 looks like my best option. What I'm wondering is if there's a way I can make them work with a traditional control board.

Here's the pictures of the pin output of the A4988 and DRV8834.



Besides the VDD pinout being changed to Fault, whatever that is, the right side of the pinout looks compatible but the left side not so much, as the MS3 pinout is missing. Would it be possible to wire the driver up to make it compatible? If not, are there any other low-voltage drivers that would work?

... the relevant value for steppers is not the rated motor voltage, but the rated current!

So your motors would run perfectly with a "normal" stepper driver, if you adjust the current for the motor (best is something around 80-90% of the rated max. current, to prevent overheating).

It's even the other way round - most drivers are supported with 12 Volts, but would run much faster with 24 Volts

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Viktor
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