hello Friend

i have one stepper driver circuit in which i used allegro's A3977 driver IC

But before two year, allegro Company stop the production of IC A3977
and now stoke of A3977 is also finish

so, i want to replace A3977 in my driver by some other IC which has 3A or more current load capacity

so please help me to find the replacement of driver A3977

thanks in advance

 

Why not look at the A3979?
http://www.allegromicro.com/en/Products/Part_Numbers/3979/index.asp

If that won't work, here's their full line of motor drivers.
http://www.allegromicro.com/en/Products/Categories/ICs/motor.asp#fullbridge

Scroll to the 2nd section.