3977
MICROSTEPPPING DMOS DRIVER
WITH TRANSLATOR
Table 2. Step Sequencing
Home State = 45º Step Angle, DIR = H
Full Step
Half Step
1
¼ Step
1
⅛
Step
1
2
2
3
4
1
2
3
5
6
4
7
8
3
5
9
10
6
11
12
2
4
7
13
14
8
15
16
5
9
17
18
10
19
20
3
6
11
21
22
12
23
24
7
13
25
26
14
27
28
4
8
15
29
30
16
31
32
Phase 1 Current
(%I
trip
max)
(%)
100.00
98.08
92.39
83.15
70.71
55.56
38.27
19.51
0.00
–19.51
–38.27
–55.56
–70.71
–83.15
–92.39
–98.08
–100.00
–98.08
–92.39
–83.15
–70.71
–55.56
–38.27
–19.51
0.00
19.51
38.27
55.56
70.71
83.15
92.39
98.08
Phase 2 Current
(%I
trip
max)
(%)
0.00
19.51
38.27
55.56
70.71
83.15
92.39
98.08
100.00
98.08
92.39
83.15
70.71
55.56
38.27
19.51
0.00
–19.51
–38.27
–55.56
–70.71
–83.15
–92.39
–98.08
–100.00
–98.08
–92.39
–83.15
–70.71
–55.56
–38.27
–19.51
Step Angle
(º)
0.0
11.3
22.5
33.8
45.0
56.3
67.5
78.8
90.0
101.3
112.5
123.8
135.0
146.3
157.5
168.8
180.0
191.3
202.5
213.8
225.0
236.3
247.5
258.8
270.0
281.3
292.5
303.8
315.0
326.3
337.5
348.8
10
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
