A3986 Datasheet, PDF (7/16 Pages) Allegro MicroSystems – Dual Full-Bridge MOSFET Driver with Microstepping Translator

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