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STSPIN820 Datasheet(PDF) 15 Page - STMicroelectronics

Part # STSPIN820
Description  Advanced 256 microsteps integrated motor driver with step-clock and direction interface
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STSPIN820 Datasheet(HTML) 15 Page - STMicroelectronics

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DocID031065 Rev 2
15/29
STSPIN820
Functional description
29
Note:
The positive number means that the output current is flowing from OUTx1 to OUTx2, vice
versa the negative numbers mean that the current is flowing from OUTx2 to OUTx1.
Table 10. Example
1/2 step
1/4 step
1/8 step
VREF phase A VREF phase B
Sequencer value
1
1
1
0%
100%
0000000000 home state
-
-
2
19.509%
98.079%
0000100000
-
2
3
38.268%
92.388%
0001000000
-
-
4
55.557%
83.147%
0001100000
2
3
5
70.711%
70.711%
0010000000
-
-
6
83.147%
55.557%
0010100000
-
4
7
92.388%
38.268%
0011000000
-
-
8
98.079%
19.509%
0011100000
3
5
9
100%
0%
0100000000
-
-
10
98.079%
-19.509%
0100100000
-
6
11
92.388%
-38.268%
0101000000
-
-
12
83.147%
-55.557%
0101100000
4
7
13
70.711%
-70.711%
0110000000
-
-
14
55.557%
-83.147%
0110100000
-
8
15
38.268%
-92.388%
0111000000
-
-
16
19.509%
-98.079%
0111100000
5
9
17
0%
-100%
1000000000
-
-
18
-19.509%
-98.079%
1000100000
-
10
19
-38.268%
-92.388%
1001000000
-
-
20
-55.557%
-83.147%
1001100000
6
11
21
-70.711%
-70.711%
1010000000
-
-
22
-83.147%
-55.557%
1010100000
-
12
23
-92.388%
-38.268%
1011000000
-
-
24
-98.079%
-19.509%
1011100000
7
13
25
-100%
0%
1100000000
-
-
26
-98.079%
19.509%
1100100000
-
14
27
-92.388%
38.268%
1101000000
-
-
28
-83.147%
55.557%
1101100000
8
15
29
-70.711%
70.711%
1110000000
-
-
30
-55.557%
83.147%
1110100000
-
16
31
-38.268%
92.388%
1111000000
-
-
32
-19.509%
98.079%
1111100000



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