stk672-070-e Sanyo Semiconductor Corporation, stk672-070-e Datasheet - Page 11

• Manufacturer Part Number: stk672-070-e
• Description: Unipolar Constant-current Chopper External Excitation Pwm Circuit With Built-in Microstepping Controller Stepping Motor Driver Sine Wave Drive Output Current 1.5a No Heat Sink*
• Manufacturer: Sanyo Semiconductor Corporation

• Excitation phases before and after excitation mode switching <counterclockwise direction>
B 24
B 24
B
B
24
23
24
22
2W1-2 phase → 2 phase
28
W1-2 phase → 2 phase
20
1-2 phase → 2 phase
2 phase →1-2 phase
30
20
20
31
28
20
28
20
28
28
16
16
16
16
A
A
A
A
A
0
A
0
A
A
0
0
12
12
4
12
12
15
4
4
4
14
4
12
6
8
7
8
8
8
B
B
B
B
B
B
B
B
24
24
25
26
26
22
26
22
21
2W1-2 phase → 1-2 phase
W1-2 phase → 1-2 phase
1-2 phase → W1-2 phase
28
20
20
2 phase → W1-2 phase
28
29
STK672-070-E
30
30
18
18
18
24
24
24
20
17
20
28
20
20
28 0 4
28
28 0 4
16
16
16
16
A
A
A
A
16
0
A
0 1
A
0
A
A
12
4
12
12
12
2
4
2
14
8
8
2
14
13
12
4
12
4
5
6
6
10
10
10
9
8
8
B
B
B
B
B 24
B
B
B
23
25
23
25
23
22
2W1-2 phase → W1-2 phase
26
W1-2 phase → 2W1-2 phase
1-2 phase → 2W1-2 phase
27
27
27
21
21
27
2 phase → 2W1-2 phase
28
20
19
29
29
19
19
19
30 31 0 1 2
18
31
24
22
24
17
22
26
20
24
26
20
20
28
20
28
18
28
18
17
30
28 0 4
16
A
A
A
30 0 2
16
A
30
16 14
16
14
0
A
A
A
A
12
2
12
12
15
15
15
12
4
4
10
10
4
1
6
6
14
8
8
8
3
13
3
13
3
3
12
4
11
5
5
11
11
11
6
10
7
9
9
7
8
7
No.7307-11/18
B
B
B
B
A13267