A3977 Allegro MicroSystems, Inc., A3977 Datasheet - Page 10

• Manufacturer Part Number: A3977
• Description: Microstepping DMOS Driver with Translator
• Manufacturer: Allegro MicroSystems, Inc.

10
3977
MICROSTEPPPING DMOS DRIVER
WITH TRANSLATOR
Full Step
1
2
3
4
Half Step
1
2
3
4
5
6
7
8
¼ Step
10
11
12
13
14
15
16
Home State = 45º Step Angle, DIR = H
1
2
3
4
5
6
7
8
9
Table 2. Step Sequencing
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
⅛ Step
10
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
11
1
2
3
4
5
6
7
8
9
Phase 1 Current
(%I
–100.00
100.00
–19.51
–38.27
–55.56
–70.71
–83.15
–92.39
–98.08
–98.08
–92.39
–83.15
–70.71
–55.56
–38.27
–19.51
98.08
92.39
83.15
70.71
55.56
38.27
19.51
19.51
38.27
55.56
70.71
83.15
92.39
98.08
trip
(%)
0.00
0.00
max)
Phase 2 Current
(%I
–100.00
100.00
–19.51
–38.27
–55.56
–70.71
–83.15
–92.39
–98.08
–98.08
–92.39
–83.15
–70.71
–55.56
–38.27
–19.51
19.51
38.27
55.56
70.71
83.15
92.39
98.08
98.08
92.39
83.15
70.71
55.56
38.27
19.51
trip
(%)
0.00
0.00
max)
Step Angle
101.3
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
112.5
22.5
33.8
45.0
56.3
67.5
78.8
90.0
11.3
(º)
0.0