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STK672-050-E Datasheet(PDF) 6 Page - Sanyo Semicon Device

Part No. STK672-050-E
Description  Stepping Motor Driver (sine wave drive) Output Current 3.0A (no heat sink*)
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

STK672-050-E Datasheet(HTML) 6 Page - Sanyo Semicon Device

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STK672-050-E
No.5228-6/19
Power-on Reset
The application must perform a power-on reset operation when VCC2 power is first applied to this hybrid IC.
Application circuit that used 2W1-2 phase excitation (microstepping operation) mode.
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 =
× Vref/Rs, Rs: The hybrid IC internal current detection resistor (0.2Ω ±3%)
Applications can use motor currents from the current (0.05 to 0.1A) set by the duty of the frequency set by the oscillator
up to the limit of the allowable operating range, IOH = 3.0A
Function Table
M2
0
0
1
1
M1
M3
0
1
0
1
Phase switching clock edge timing
1
2 phase excitation
1-2 phase excitation
W1-2 phase excitation
2W1-2 phase excitation
Rising edge only
0
1-2 phase excitation
W1-2 phase excitation
2W1-2 phase excitation
4W1-2 phase excitation
Rising and falling edges
Forward
Reverse
ENABLE
Motor current is cut off when low
CWB
0
1
RESET
Active low
A
A
B
B
MO1
1
0
0
1
MO2
0
0
1
1
3
1
0A
Motor current waveform
Ioave
A12408
IOL IOH
8
6
A
A
7
22
12
11
10
9
14
13
15
14
18
16
17
19
+
+
VCC2=5V
VCC2=5V
SG
PG
Vref
VCC2=5V
CLK
1k
Ω
ENABLE
RET
RESET
MOI
VCC1=10V to 45V
Two-phase
stepping motor
STK672-050-E
ITF02395
B
B
5
2
1
3
4
20
MO1
21
MO2


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