SKT672-080-E Datasheet, PDF (5/18 Pages) ON Semiconductor – Stepping Motor Driver

Test Circuit Diagrams
Vsat
VCC2
Start
Vref=2.5V
6
11
5A
4 ^AB
8
3B
9
2 ^BB
STK672-080-E
7
VCC2
+
13
1
STK672-080-E
VCC1
RL
V
Vdf
6
5A
4 ^AB
3B
2 ^BB
STK672-080-E
V
A13257
1
A
A13258
IIH, IIL
VCC2
IIH
A
IIL
A
2.5V
6
M1
8
M2
9
M3
12
CLK
CWB
11
STK672-080-E
10
RESET ₁₃₄
ENABLE ₁₅
Vref
7
1
Ioave, ICC, fc
VCC2
VCC1
Start
Vref
ENABLE
A
6
a
11
5A
8
4 ^AB
9
SW2
3B
STK672-080-E
7
2 ^BB
15
SW3
ba b
SW1
VCC1
+
13
1
fc
A
A13259
A13260
For Ioave measurement: Set switch SW1 to the b position, provide the Vref input and switch over switch SW2.
For fc measurement: Set SW1 to the a position, set Vref to 0V, and switch over switch SW3.
For ICC measurement: Set the ENABLE input to the low level.
No.6507-5/18