參數(shù)資料
型號(hào)： AMIS-30621-AGA
元件分類： 運(yùn)動(dòng)控制電子
英文描述： STEPPER MOTOR CONTROLLER, 0.8 A, PDSO20
封裝： 300 INCH, PLASTIC, SOIC-20
文件頁(yè)數(shù)： 3/57頁(yè)
文件大?。?/td> 1017K
代理商： AMIS-30621-AGA
AMIS-30621 LIN Micro-stepping Motor Driver
Data Sheet
11
AMI Semiconductor
– Sept. 2007, Rev 1.5
www.amis.com
12.2 Maximum Velocity
For each stepping mode, the maximum velocity Vmax can be programmed to 16 possible values given in Table 7.
The accuracy of Vmax is derived from the internal oscillator. Under special circumstances it is possible to change the Vmax parameter
while a motion is ongoing. All 16 entries for the Vmax parameter are divided into four groups. When changing Vmax during a motion the
application must take care that the new Vmax parameter stays within the same group.
Table 7: Maximum Velocity Selection Table
Vmax Index
Stepping Mode
Hex
Dec
Vmax
(Full-step/s)
Group
Half-stepping
(Half-step/s)
1/4
th
Micro-stepping
(Micro-step/s)
1/8
th
Micro-stepping
(Micro-step/s)
1/16
th
Micro-stepping
(Micro-step/s)
0
99
A
197
395
790
1579
1
136
273
546
1091
2182
2
167
334
668
1335
2670
3
197
395
790
1579
3159
4
213
425
851
1701
3403
5
228
456
912
1823
3647
6
243
B
486
973
1945
3891
7
273
546
1091
2182
4364
8
303
607
1213
2426
4852
9
334
668
1335
2670
5341
A
10
364
729
1457
2914
5829
B
11
395
790
1579
3159
6317
C
12
456
C
912
1823
3647
7294
D
13
546
1091
2182
4364
8728
E
14
729
1457
2914
5829
11658
F
15
973
D
1945
3891
7782
15564
12.3 Minimum Velocity
Once the maximum velocity is chosen, 16 possible values can be programmed for the minimum velocity Vmin. Table 8 provides the
obtainable values in full-step/s. The accuracy of Vmin is derived from the internal oscillator.
Table 8: Obtainable Values in Full-step/s for the Minimum Velocity
Vmax (Full-step/s)
Vmin Index
A
B
C
D
Hex
Dec
Vmax
Factor
99
136
167
197
213
228
243
273
303
334
364
395
456
546
729
973
0
1
99
136
167
197
213
228
243
273
303
334
364
395
456
546
729
973
1
1/32
3
4
5
6
7
8
10
11
13
15
19
27
2
2/32
6
8
10
11
12
13
14
15
17
19
21
23
27
31
42
57
3
3/32
9
12
15
18
19
21
22
25
27
31
32
36
42
50
65
88
4
4/32
12
16
20
24
26
28
30
32
36
40
44
48
55
65
88
118
5
5/32
15
21
26
31
32
35
37
42
46
51
55
61
71
84
111
149
6
6/32
18
25
31
36
39
42
45
50
55
61
67
72
84
99
134
179
7
7/32
21
30
36
43
46
50
52
59
65
72
78
86
99
118
156
210
8
8/32
24
33
41
49
52
56
60
67
74
82
90
97
113
134
179
240
9
9/32
28
38
47
55
59
64
68
76
84
93
101
111
128
153
202
271
A
10
10/32
31
42
51
61
66
71
75
84
93
103
113
122
141
168
225
301
B
11
11/32
34
47
57
68
72
78
83
93
103
114
124
135
156
187
248
332
C
12
12/32
37
51
62
73
79
85
91
101
113
124
135
147
170
202
271
362
D
13
13/32
40
55
68
80
86
93
98
111
122
135
147
160
185
221
294
393
E
14
14/32
43
59
72
86
93
99
106
118
132
145
158
172
198
237
317
423
F
15
15/32
46
64
78
93
99
107
113
128
141
156
170
185
214
256
340
454
Notes:
(1) The Vmax factor is an approximation.
(2) In case of motion without acceleration (AccShape = 1) the length of the steps = 1/Vmin. In case of accelerated motion (AccShape = 0) the length of the first step is
shorter than 1/Vmin depending of Vmin, Vmax and Acc.
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