SKT672-040-E Datasheet, PDF (5/19 Pages) ON Semiconductor – Stepping Motor Driver

Test Circuit Diagrams
Vsat
VCC2
Start
Vref=2.5V
7
14
6A
5A
9
2B
10
1B
STK672-040-E
8
VCC2
4
+
16
3
22
STK672-040-E
VCC1
V
ITF02367
Vdf
7
6A
5A
2B
1B
STK672-040-E
V
4
3
22
A
ITF02368
IIH, IIL
IIH
A
IIL
Ioave, ICC, fc
VCC2
M1
9
7
M2
10
M3
11
M4
12
M5
13
CLK
CWB
14 STK672-040-E
15
RESET ₁₆
RETURN ₁₇
ENABLE ₁₈
Vref
8
22
Start
Vref=1V 0V
5V
Low when
measuring ICC
0V
VCC2
+
ITF02369
VCC2
A
7
14
6A
9
2A
10
5B
1B
8 ^STK672-040-E
18
16
22
VCC1
a ba b
SW1
SW2
VCC1
A
ITF02370
When measuring Ioave: With SW1 set to ‘a’, Vref = 1V
When measuring fc: With SW1 set to ‘b’, Vref = 0V
When measuring ICC: Set ENABLE low
No. 5227-5/19