STK672-040(2000) Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
STK672-040
(Rev.:2000)
(Rev.:2000)
SANYO -> Panasonic
STK672-040 Datasheet PDF : 19 Pages
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STK672-040
Operation Description
2W1-2 Phase Excitation Drive (microstepping operation)
VCC2 = 5 V
VCC1 = 10 V to 45 V
VCC2 = 5 V
CLK
1 kΩ
ENABLE
+
RESET
RET
MoI
Mo1
Mo2
7
9
140
141
142
143
Two-phase stepping motor
6A
A
5
B
2
B
1
145
14 STK672-040
18
3
16
4
17
VCC2 = 5 V
19
20
21
8
Vref
22
Note: This hybrid IC must be initialized with a power on reset when power is first applied.
+
SG
PG
A12394
[Setting the Motor Current]
The motor current IOH is set by the Vref voltage on the hybrid IC pin 8. The following formula gives the relationship
between IOH and Vref.
IOH =
—1 × Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.33 Ω ±3%)
3
Applications can use motor currents from the current (0.05 to 0.1 A) set by the duty of the frequency set by the oscillator
up to the limit of the allowable operating range, IOH = 1.5 A
0A
Motor current waveform
Ioave
IOL IOH
A12395
[Function Table]
M2
M1
M3
1
0
0
0
2 phase excitation
1-2 phase excitation
0
1
1
1
0
1
1-2 phase excitation W1-2 phase excitation 2W1-2 phase excitation
W1-2 phase excitation 2W1-2 phase excitation 4W1-2 phase excitation
Phase switching clock edge timing
Rising edge only
Rising and falling edges
CWB
Mo1
Mo2
Forward
0
A
1
0
Reverse
1
A
0
0
ENABLE
RESET
Motor current is cut off when low
Active low
B
B
0
1
1
1
No. 5227-6/19
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