2-Phase Stepper Motor Unipolar Driver IC (2-Phase Excitation)
SMA7036M
sSupply
Voltage V
CC
vs. Supply Current I
CC
sTorque
Characteristics
500
2.0
Supply current I
CC
(mA)
Pull-out torque (kg-cm)
400
1.5
300
Motor : 23LM-C004
1-phase excitation
Holding mode
I
O
: Output current
I
O
=1A
1.0
200
Motor : 23LM-C202
Output current I
O
=0.8A
Motor supply voltage V
CC
=24V
2-phase excitation
100
0.5
0
0.5A
0.2A
0
10
20
30
40
50
0
100
500
1K
5K
Supply voltage V
CC
(V)
Response frequency
(pps)
sChopper
frequency vs. Supply voltage
sChopper
frequency vs. Output current
50
50
40
40
f (kHz)
20
Motor : 23LM-C202
I
O
= 0.8A at V
CC
=24V
R
S
=1Ω
f (kHz)
30
30
20
Motor : 23LM-C202
V
CC
=24V
R
S
=1Ω
10
10
0
0
10
20
30
40
50
0
0
0.2
0.4
0.6
0.8
1.0
V
CC
(V)
I
O
(A)
sHandling
Precautions
The input terminals of this product use C-MOS circuits. Observe the following precautions.
q
Carefully control the humidity of the room to prevent the buildup of static electricity. Since static electricity is particularly a problem
during the winter, be sure to take sufficient precautions.
q
Take care to make sure that static electricity is not applied to the IC during wiring and assembly. Take precautions such as shorting
the terminals of the printed wiring board to ensure that they are at the same electrical potential.
18
SMA7036M
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