L6223A ST Microelectronics, Inc., L6223A Datasheet - Page 11

• Manufacturer Part Number: L6223A
• Description: Dmos Programmable High Speed Unipolar Stepper Motor Driver
• Manufacturer: ST Microelectronics, Inc.

Table 6
*) RC discharge time percentage
L6223A Operating Configuration vs. 6bits Shift Register Programming (External RC network: R =
18k C = 3,3nF)
Nr
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
0
1
2
3
4
5
6
7
8
9
C2
H
H
L
L
C5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
C4
SHIFT REGISTER bITS
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
C3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
C3
H
H
L
L
C2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
Output Disabled
C1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
t
(ON)
100
/t
75
50
C0
(OSC)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
*
Full/Simpl.
Operation
Mode
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
F
F
F
F
F
F
F
Table 7
Close Loop
Frequency
C4
H
L
(kHz)
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
20
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
20
20
20
20
20
20
20
Open Loop
DISABLED
DISABLED
DISABLED
DISABLED
DISABLED
DISABLED
DISABLED
DISABLED
t
(ON)
Chopping Frequency
100
100
100
100
100
100
100
100
100
100
100
75
75
75
75
50
50
50
50
75
75
75
75
50
50
50
50
75
75
75
75
[%]
20kHz
10kHz
Close Loop
Level [%]
Current
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
85%
40%
70%
55%
L6223A
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