A3980
Automotive DMOS Microstepping Driver
with Translator
100.00
70.71
100.00
70.71
Home Microstep Position
–70.71
–100.00
100.00
70.71
–70.71
–100.00
100.00
70.71
Phase 2
I
OUT2B
Direction = H
(%)
–70.71
–100.00
Phase 2
I
OUT2B
Direction = H
(%)
–70.71
–100.00
Figure 5. Full Step
STEP
100.00
92.39
83.15
70.71
55.56
Figure 6. Half Step
–38.27
–55.56
–70.71
–83.15
–92.39
–100.00
100.00
92.39
83.15
70.71
55.56
Phase 2
I
OUT2B
Direction = H
(%)
38.27
19.51
0.00
–19.51
–38.27
–55.56
–70.71
–83.15
–92.39
–100.00
Mixed
Slow
Home Microstep Position
Phase 1
I
OUT1B
Direction = H
(%)
38.27
19.51
0.00
–19.51
Slow
Mixed
Slow
Mixed
Home Microstep Position
Phase 1
I
OUT1B
Direction = H
(%)
Phase 1
I
OUT1B
Direction = H
(%)
Mixed
Slow
Figure 7. Eighth Step
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
8
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
