3977 データシートの表示（PDF） - Allegro MicroSystems
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3977 Datasheet PDF : 18 Pages
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3977
MICROSTEPPPING DMOS DRIVER
WITH TRANSLATOR
Full Step Half Step
1
1
2
3
2
4
5
3
6
7
4
8
Table 2. Step Sequencing
Home State = 45º Step Angle, DIR = H
¼ Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
⅛ Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Phase 1 Current Phase 2 Current
(%Itripmax)
(%)
(%Itripmax)
(%)
100.00
0.00
98.08
19.51
92.39
38.27
83.15
55.56
70.71
70.71
55.56
83.15
38.27
92.39
19.51
98.08
0.00
100.00
–19.51
98.08
–38.27
92.39
–55.56
83.15
–70.71
70.71
–83.15
55.56
–92.39
38.27
–98.08
19.51
–100.00
0.00
–98.08
–19.51
–92.39
–38.27
–83.15
–55.56
–70.71
–70.71
–55.56
–83.15
–38.27
–92.39
–19.51
–98.08
0.00
–100.00
19.51
–98.08
38.27
–92.39
55.56
–83.15
70.71
–70.71
83.15
–55.56
92.39
–38.27
98.08
–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
115 Northeast Cutoff, Box 15036
10
Worcester, Massachusetts 01615-0036 (508) 853-5000
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