A3982
DMOS Stepper Motor Driver with Translator
STEP
STEP
100.00
100.00
70.71
70.71
Slow
Mixed
Slow
Mixed
Slow
Mixed
Slow
Phase 1
IOUT1A
Phase 1
IOUT1A
0.00
0.00
Direction = H
(%)
Direction = H
(%)
–70.71
–70.71
–100.00
100.00
70.71
–100.00
100.00
70.71
Slow
Slow
Mixed
Slow
Mixed
Slow
Mixed
Phase 2
IOUT2A
Phase 2
IOUT2A
0.00
0.00
Direction = H
(%)
Direction = H
(%)
Slow
–70.71
–70.71
–100.00
–100.00
Figure 2. Decay Mode for Full-Step Increments
Figure 3. Decay Modes for Half-Step Increments
Table 2. Step Sequencing Settings
Home step position at Step Angle 45º; DIR = H
Phase 1
Current
tripMax
(%)
Phase 2
Current
tripMax
(%)
Full
Half
Step
Angle
(º)
Step Step [% I
#
]
[% I
]
#
1
100.00
70.71
0.00
0.00
70.71
0.0
1
2
3
4
5
6
7
8
45.0
100.00
70.71
90.0
2
3
4
–70.71
–100.00
–70.71
0.00
135.0
180.0
225.0
270.0
315.0
0.00
–70.71
–100.00
–70.71
70.71
Allegro MicroSystems, Inc.
8
115 Northeast Cutoff, Box 15036
26184.28B
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
