A3982_13 Datasheet, PDF (9/11 Pages) Allegro MicroSystems – DMOS Stepper Motor Driver with Translator

A3982
DMOS Stepper Motor Driver with Translator
STEP
100.00
70.71
Phase 1
I_{OUT1A 0.00}
Direction = H
(%)
–70.71
–100.00
100.00
70.71
Phase 2
I_{OUT2A 0.00}
Direction = H
(%)
–70.71
–100.00
Slow
Slow
Figure 2. Decay Mode for Full-Step Increments
STEP
100.00
70.71
Phase 1
I_{OUT1A 0.00}
Direction = H
(%)
Slow
Slow
Slow
Mixed
Mixed
Mixed
–70.71
–100.00
100.00
70.71
Phase 2
I_{OUT2A 0.00}
Direction = H
(%)
Slow _Slow
Mixed
Mixed
Slow
Mixed
Slow
–70.71
–100.00
Figure 3. Decay Modes for Half-Step Increments
Table 2. Step Sequencing Settings
Home step position at Step Angle 45º; DIR = H
Full
Step
#
1
2
3
4
Half
Step
#
1
2
3
4
5
6
7
8
Phase 1
Current
[% ItripMax]
(%)
100.00
Phase 2
Current
[% ItripMax]
(%)
0.00
70.71
70.71
0.00
100.00
–70.71 70.71
–100.00 0.00
–70.71 –70.71
0.00 –100.00
70.71 –70.71
Step
Angle
(º)
0.0
45.0
90.0
135.0
180.0
225.0
270.0
315.0
Allegro MicroSystems, LLC
9
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com