A3977KLP View Datasheet(PDF) - Allegro MicroSystems
Part Name
Description
MFG CO.
'A3977KLP' PDF : 18 Pages View PDF
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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