My question remains the same. Would That motor driver work with Arduino DUE?
You're right. That module has it's own onboard 5volt regulator, derived from the motor supply.As long as motor supply is more than 6volt (including dips), there will be a stable 5volt for the chip's logic.I see in the datasheet that logic signals (from the Arduino) can be as low as 2.3volt, so this module should also work with 3.3volt logic.Leo..
I've used an L298N in the recent past to control two DC motors, I'd say it worked pretty well. Never tried powering it using my Arduino because I needed the Arduino's power for other modules. What I did to power my L298N was simply connect a 9V battery to the L298N (since it can take well above 5V) and connect the Arduino GND to the L298N's ground. That worked very well for me. Is having an external power source an option for you?