A3909 Datasheet, PDF (6/10 Pages) Allegro MicroSystems – Dual Full Bridge Motor Driver

A3909
Dual Full Bridge Motor Driver
IN1
IN2
OUT1
OUT2
Current (12)
IN1
IN2
IN3
IN4
Current (12)
Stepper Motor Timing Diagram
t_STANDBY
2
3
4
5
6
7
Current (34)
1
2
3
4
I (2/4)
2
1
123456781
I (2/4)
3
2
1
I _(1/3)
4
8
I _(1/3)
3
4
Full Step
5
6
7
Half Step
Allegro MicroSystems, LLC
6
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com