I've got some Allegro A3953 dc motor driver and try to understand how can I use with my Arduino.
Is there anyone who can give some tips?
Thanks for all the help.
First off look at the data sheet:-
http://www.allegromicro.com/en/Products/Part_Numbers/3953/3953.pdf
You will see they are a standard H-bridge so use them like any other as in :-
http://www.thebox.myzen.co.uk/Workshop/Motors_1.html
I'll check it out,, thanks for the tips
Hi hernzum,
did you figure it out how to use your a3953 h-bridge?
: )
its o.k i figured out that my PWM was too high , i have modified the the clock on the arduino to 32kh. and this h-bridge does not like that higher frequency;
anyone know of a h-bridge that can handle 32kh in DIP package for a 10v 800ma motor? lol: ) i've been searching for a long time.
: P
did you figure it out how to use your a3953 h-bridge?
: )
Not yet 
I use a circuit i found in a RC car
here are a couple pictures worth saving to your H drive for when you wish to get it to work later on.
there is a reference voltage needed ( REF input) , i used 0.4v ,to get this i used this circuit below.
the image on the PDF is very pixelated so here is one i found elsewhere.
: P
p.s
( i was using a default arduino , my problem was that i had modified my arduino with a higher frequency and it seems that this h-bridge wasn't happy. So i reset the frequency back to default and it was fine.)
update do not pwm the enable pin, instead pwm the reference by using the little circuit to the far right in this picture.