lmd 18200 motor h-bridge

hi guys!

i have trouble getting a lmd 18200 h-bridge to work:
http://www.acroname.com/robotics/parts/R27-18200.pdf

what i'm trying to do is drive a motor taken from a batt-powered cordless screwdriver (12V).

any suggestions where to start looking? ... or has anyone already used that bridge with arduino?

thanks!
F

I'm getting ready to use an 18200 myself for some prototyping. Are you still having trouble? I've read some posts around the web stating that the driver becomes unstable at or near 12V.