Dual Full-Bridge MOSFET Driver
with Microstepping Translator
A3986
Table 3. Step Sequencing Settings
Home microstep position at Step Angle 45º; DIR = H
Full
Half
1/4
1/16
Phase 2
Current
Phase 1
Current
Step
Angle
(°)
Full
Half
1/4
1/16
Phase 2
Current
Phase 1
Current
Step
Angle
(°)
Step Step Step Step
(#)
Step Step Step Step
(#)
(#)
(#)
(#) (% ITRIP(max)) (% ITRIP(max)
)
(#)
(#)
(#) (% ITRIP(max)) (% ITRIP(max))
1
1
1
0.00
9.38
100.00
100.00
98.44
0.0
5.6
5
9
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
1
0.00
–9.38
–100.00
–100.00
–98.44
–95.31
–92.19
–87.50
–82.81
–76.56
–70.31
–64.06
–56.25
–46.88
–37.50
–29.69
–18.75
–9.38
180.0
185.6
191.3
196.9
202.5
208.1
213.8
219.4
225.0
230.6
236.3
241.9
247.5
253.1
258.8
264.4
270.0
275.6
281.3
286.9
292.5
298.1
303.8
309.4
315.0
320.6
326.3
331.9
337.5
343.1
348.8
354.4
360.0
2
3
18.75
29.69
37.50
46.88
56.25
64.06
70.31
76.56
82.81
87.50
92.19
95.31
98.44
100.00
100.00
100.00
98.44
95.31
92.19
87.50
82.81
76.56
70.31
64.06
56.25
46.88
37.50
29.69
18.75
9.38
11.3
–18.75
–29.69
–37.50
–46.88
–56.25
–64.06
–70.31
–76.56
–82.81
–87.50
–92.19
–95.31
–98.44
–100.00
–100.00
–100.00
–98.44
–95.31
–92.19
–87.50
–82.81
–76.56
–70.31
–64.06
–56.25
–46.88
–37.50
–29.69
–18.75
–9.38
4
95.31
16.9
2
3
4
5
6
7
8
9
5
92.19
22.5
10
11
12
13
14
15
16
1
6
87.50
28.1
7
82.81
33.8
8
76.56
39.4
1
2
3
4
5
9
70.31
45.0
3
6
7
8
1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
64.06
50.6
56.25
56.3
46.88
61.9
37.50
67.5
29.69
73.1
18.75
78.8
9.38
84.4
0.00
90.0
0.00
–9.38
95.6
9.38
–18.75
–29.69
–37.50
–46.88
–56.25
–64.06
–70.31
–76.56
–82.81
–87.50
–92.19
–95.31
–98.44
–100.00
–100.00
101.3
106.9
112.5
118.1
123.8
129.4
135.0
140.6
146.3
151.9
157.5
163.1
168.8
174.4
180.0
18.75
29.69
37.50
46.88
56.25
64.06
2
4
70.31
76.56
82.81
87.50
92.19
95.31
98.44
100.00
100.00
0.00
0.00
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
7
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
ALLEGRO [ ALLEGRO MICROSYSTEMS ]
