Its not just the chip that has to be rated high enough - the decoupling capacitors on
the PCB need to be rated high enough too, so read datasheet for the motor driver
module, not just the chip.
Be aware that as you get closer to the max voltage the more important it is to avoid
spikes on the supply rail which could cause over-voltage failure. Good decoupling is
needed and TVS diodes are worth having too to clip any wayward spikes.
What current motors are you thinking of? No single chip drivers comfortably handle
more than about 1.3A (though adding heatsinks and fans will help). Industrial stepper
drive units are available for the higher currents, and these usually support much higher
voltages too.