Features
2
Dual Stepper Motor Driver
Constant Current Control Function (Fixed Off Time)
Current Decay Mode (Fast Decay or Slow Decay)
Noise Cancellation Function
Cross Conduction Protection
Thermal Shutdown Function
Built-in Flywheel and Flyback Diodes
Absolute Maximum Ratings
Ta=25
Parameter
Logic Supply Voltage
Logic Input Voltage
Load Supply Voltage
Output Current
Flywheel Diode Current
Power Dissipation
Storage Temperature
Junction Temperature
Symbol
V
CC
V
LOGIC
V
mm
I
OUT
I
f
P
D
T
stg
T
j
-40
0
0
Rating
6
V
CC
35
1.2
1.2
2.9
150
150
V
V
V
A
A
W
Ta=25
unless otherwise specified
Unit
Electrical Characteristics
Ta=25
Parameter
Symbol
Condition
, Vcc=5V
min.
Ta=25 , Vcc=5V unless otherwise specified
typ.
max.
Unit
Output stage
Vmm
1
A+B or C+D
Load Supply Current 1 Axis A+B or C+D
Vmm
2
A+B+C+D
Load Supply Current 2 Axis A+B+C+D
Output Saturation Voltage Upper side
Output Saturation Voltage Lower side
Output Leakage Current
Diode Forward Drop Upper side
Diode Forward Drop Lower side
I
mm
(OFF)1
I
mm
(OFF)2
V
CE
V
CE
SAT
V
mm
=24V, V
ENA
=2.1V, No load
V
mm
=24V, V
ENA
=2.1V, No load
I
C
=0.8A
I
C
=0.8A
V
mm
=35V
I
f
=0.8A
I
f
=0.8A
-
-
-
-
-
-
-
-
-
1.2
0.7
-
1.3
1.3
7
14
1.5
1.0
20
1.6
1.5
mA
mA
V
V
A
V
V
H
L
SAT
Ir
V
F
H
V
F
L
Logic stage
V
CC
V
CC
1+V
CC
2
Logic Supply Current V
CC
1+V
CC
2
V
CC
V
CC
1+V
CC
2
Logic Supply Current V
CC
1+V
CC
2
PHA/ENA/DEC H
PHA/ENA/DEC H Input Voltage
PHA/ENA/DEC L
PHA/ENA/DEC L Input Voltage
PHA/ENA/DEC H
PHA/ENA/DEC H Input Current
PHA/ENA/DEC L
PHA/ENA/DEC L Input Current
CR
CR Charge Current
Vref
Vref Input Current
Vref
Vref Input Current
Blanking Time
Thermal Shutdown Temperature
I
CC (ON)
I
CC (OFF)
V
LOGIC
H
V
LOGIC
L
I
LOGIC
H
I
LOGIC
L
I
CR
V
ref
I
ref
t
b
T
TSD
V
ref
=0V
Rt=30k
, Ct=1000pF
V
LOGIC
=
V
LOGIC
=
V
CR
=2V
H
L
V
ENA
=
V
ENA
=
L
H
-
-
2.1
GND
-
-
-
-
-
-
-
95
36
-
-
-
-100
1
-
-1
2.14
150
135
52
V
CC
0.8
20
-200
-
1.0
-10
-
-
mA
mA
V
V
A
A
mA
V
A
s
U170-1
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SHINDENGEN [ SHINDENGEN ELECTRIC MFG.CO.LTD ]
