General,
As I wrote above you need to examine the specifications for the devices you are using to insure compatability. You might want to check out these sites where there are kits for a PWM convertor and motor controller using the chip we are discussing.
http://www.superdroidrobots.com/shop...asp?itemid=603
http://www.superdroidrobots.com/shop...asp?itemid=583
I have not done business with this site but came across it when doing research for this thread.