stk672-050-e ON Semiconductor, stk672-050-e Datasheet - Page 11

• Manufacturer Part Number: stk672-050-e
• Description: Thick-film Hybrid Ic Unipolar Constant-current Chopper External Excitation Pwm Circuit With Built-in Microstepping Controller Stepping Motor Driver Sine Wave Drive Output Current 3.0a No Heat Sink*
• Manufacturer: ON Semiconductor

Output Pin Functions
Output Signal Functions and Timing
• A, A, B, and B (Motor phase excitation outputs)
• MO1, MO2, and MOI (Phase excitation state monitors)
MOI outputs a 0 when each phase is at the origin, and outputs a 1 otherwise.
• Current division ratios set by M3, M4, and M5 ········· Values provided for reference purposes.
1) Pin circuit type: Standard CMOS structure
1) Function:
1) Function:
Phase coordinate
Current
division
Setting
- Output of the current phase excitation output state.
ratio
- In the 4 phase and 2 phase excitation modes, a 3.75μs (typical) interval is set up between the A and A and B and
Pin No.
20, 21
B output signal transition times.
19
MO1
MO2
M3 = 0
4W1-2
Mode
MO1, MO2
Symbol
MOI
Phase A
1
0
M3 = 1
2W1-2
2W1-2
2W1-2
2W1-2
2W1-2
2W1-2
2W1-2
Phase excitation origin monitor
Phase excitation state monitor
Phase B
0
1
Circular
M4 = 1
M5 = 1
100
Function
14
20
31
40
48
55
65
71
77
83
88
92
97
Phase A
STK672-050-E
M4 = 0
M5 = 0
0
0
100
15
25
34
44
51
62
69
77
82
88
92
95
98
1
Standard CMOS structure
Standard CMOS structure
Phase B
M4 = 1
M5 = 0
100
2
15
23
33
42
49
57
65
71
77
85
89
95
98
1
1
Pin circuit type
[Load conditions]
V CC 1 = 24V, V CC 2 = 5V, R/L = 3.5/3.8mH
M4 = 1
M5 = 1
100
3
13
19
28
39
45
54
62
69
74
82
85
92
94
Units
%
1/8
2/8
3/8
4/8
5/8
6/8
7/8
Number of steps
No.5228-11/19
10/16
11/16
12/16
13/16
14/16
1/16
2/16
3/16
4/16
5/16
6/16
7/16
8/16
9/16