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L9942 数据表(PDF) 9 Page - STMicroelectronics

部件名 L9942
功能描述  Integrated stepper motor driver for bipolar stepper motors with microstepping and programmable current profile
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L9942 数据表(HTML) 9 Page - STMicroelectronics

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L9942
2 Device description
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Figure 3.
Stepping Modes
08
0
8
08
16
24
08
0
8
Current Driver A
Current Driver B
STEP Signal
Phase Counter
Full-Stepping Mode: DIR=0
Address of Current
Profile Entry
08
08
24
16
8
0
08
0
8
Current Driver A
Current Driver B
STEP Signal
Full-Stepping Mode: DIR=1
Address of Current
Profile Entry
04
840
4
8
4
0
4
8
12
162024
28
048
4
0
4
84
Current Driver A
Current Driver B
STEP Signal
Address of Current
Profile Entry
Phase Counter
Half-Stepping Mode: DIR=0
04
8
4
04
8
4
0
28
24
20
16128
4
04
8
4
0
4
84
Driver Current A
Driver Current B
STEP Signal
Half-Stepping Mode: DIR=1
Address of Current
Profile Entry
024
686
42
0
246
864
2
0
2
4
6
8
1012
14
16
18
20
2224
2628
30
02
46
8
642
024
6
864
2
Current Driver A
Current Driver B
STEP Signal
Phase Counter
Mini-Stepping Mode: DIR=0
024
6
86
4
2
02
468
6
4
2
0
30
28
26
2422
20
1816
14
12
10
8
6
4
2
02
4
6
86
420
2
4
6
864
2
Current Driver A
Current Driver B
STEP Signal
Mini-Stepping Mode: DIR=1
Adress of Current
Profile Entry
Adress of Current
Profile Entry
0 1 2
3 45
6 7 8 765 432 101 234 567 8 7 6
5 4 3
21
0 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
0 123 456 787 654 321 0 1 2
3 4 5
67
87 6
5 4 3
2 1
Current Driver A
Current Driver B
Adress of Current
Profile Entry
Phase Counter
Micro Stepping Mode: DIR=0 (e.g auto decay)
0
1 2
345 678 7 65 432 1 01
2 3 4 5 67 876 543 2 1
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5
4 3 2
1
0 1 23 456 7 87
6 5 4 3 21 012 345 6 7
8
7 6
543 21
Slow Decay
Mode
Mixed Decay
Mode
Current Driver A
Current Driver B
Micro Stepping Mode: DIR=1 (e.g. auto decay)
0
Adress of Current
Profile Entry
Mixed Decay
Mode
Mixed Decay
Mode
Mixed Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Mixed Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Mixed Decay
Mode
Mixed Decay
Mode
Mixed Decay
Mode



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