Features
Constant Current Control Function (Fixed Frequency PWM Control)
2
1-2
ENA
2-Phase Input (Half Step Drive Uses ENA Together)
Current Decay Mode (Fast Decay or Slow Decay)
Noise Cancellation Function
Cross Conduction Protection
Overheating Alarm 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
C
I
f
P
D
T
stg
T
j
-40
0
0
Rating
6
V
CC
35
1.3
1.3
3
150
150
V
V
V
A
A
W
Ta=25
unless otherwise specified
Unit
U170-1
www.shindengen.co.jp/product/semi/
Electrical Characteristics
Ta=25
Parameter
Symbol
Condition
,V
CC
=5V
min.
Ta=25 ,V
CC
=5V unless otherwise specified
typ.
max.
Unit
Output stage
Vmm
2
OFF
Load Supply Current 2 Circuit OFF
Output Saturation Voltage Upper side
Output Saturation Voltage Lower side
Output Leakage Current Upper side
Output Leakage Current Lower side
Diode Forward Drop Upper side
Diode Forward Drop Lower side
I
mm
(OFF)
V
CE
V
CE
SAT
V
mm
=35V, V
ENA
=5V
I
C
=0.8A
I
C
=0.8A
V
mm
=35V, V
OUT
=0V
V
OUT
=35V, V
Rs
=0V
I
f
=0.8A
I
f
=0.8A
-
-
-
-
-
-
-
-
1.0
1.0
-
-
1.3
1.3
8
1.4
1.4
10
10
1.6
1.5
mA
V
V
A
A
V
V
H
L
SAT
IrH
IrL
V
F
H
V
F
L
Logic stage
V
CC
2
ON
Logic Supply Current 2 Circuit ON
V
CC
2
OFF
Logic Supply Current 2 Circuit OFF
Phase/Enable/Decay H
Phase/Enable/Decay H Input Voltage
Phase/Enable/Decay L
Phase/Enable/Decay L Input Voltage
Phase/Enable/Decay H
Phase/Enable/Decay H Input Current
Phase/Enable L
Phase/Enable L Input Current
Decay L
Decay L Input Current
Vref
Vref Input Current
Vs
Vs Input Current
Comp
Comparator Threshold
Chopping Frequency
Blanking Time
Vs
Vs Maximum Voltage
Thermal Alarm Leakage Current
Thermal Alarm Output Current
Thermal Alarm Operating Temperature
I
CC (ON)
I
CC (OFF)
V
PHA/ENA/DEC
H
V
PHA/ENA/DEC
L
I
PHA/ENA/DEC
H
I
PHA/ENA
L
I
DEC
L
I
ref
Is
Vs
f
chop
t
b
V
s (max)
I
r (alm)
I
alm
T
alm
V
alm
=5V
V
alm
=0.5V
V
PHA/ENA/DEC
=5V
V
PHA/ENA
=0V
V
DEC
=0V
V
ref
=0V
V
s
=0V
V
ref
=0.5V
Ct=3300pF,Rt=18k
Ct=3300pF
V
ENA
=0A
V
ENA
=5V
-
-
2.3
GND
-
-
-
-
-
0.475
-
-
-
-
-
-
25
19
-
-
-
-100
-200
-1
-1
0.5
23
1.55
-
-
-
140
33
26
V
CC
0.8
10
-150
-300
-10
-10
0.525
-
-
1.0
10
2
-
mA
mA
V
V
A
A
A
A
A
V
kHz
s
V
A
mA
www.shindengen.co.jp/product/semi/
U170-1
Typical Application
Recommended External Components Value
Symbol
Rs
Rt
Ct
R1+R2
Recommendation
0.68
18
3300
10
k
pF
k
Unit
Recommended Operating Conditions
Ta=25
Parameter
Junction Temperature
Logic Supply Voltage
Load Supply Voltage
Symbol
T
j
V
CC
V
mm
Ta=25
unless otherwise specified
Unit
Recommendation
-25
4.75
5
120
5.25
31
V
V
Setting of Output Current and Chopping Frequency
Output Current Setting
lchop
Vref A
Rs
Chopping Frequency Setting
fchop
1
Hz
0.75
×
Ct
×
Rt
T=1/fchop
Ichop
Constant current waveform Motor current
U170-1
www.shindengen.co.jp/product/semi/
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