I am somewhat puzzled by the LMD18200's design decisions. If you look at the truth table for PWM, you'll notice that if you hold brake low, dir to whatever, and pulse PWM, the driver'll pulse the motor when the PWM is high and short the motor when PWM is low (effectively braking the motor). Can anyone enlighten me on why this is case instead of letting the motor coast while the control signal is low.
Here is the truth table for the LMD 18200
PWM DIR Brake Active Drivers
H | H | L | Source 1, Sink 2
H | L | L | Sink 1, Source 2
L | X | L | Source 1, Source 2
H | H | H | Source 1, Source 2
H | L | H | Sink 1, Sink 2
L | X | H | NONE