2-Phase Stepper Motor Unipolar Driver IC (2-Phase/1-2 Phase Excitation)
SLA7032M/SLA7033M
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)
sNote
The excitation input signals of the SLA7032M, SLA7033M can be used as either Active High or Active Low. Note, however, that the
corresponding output (OUT) changes depending on the input (IN).
Active High
Input
IN
A
(pin6)
IN
A
(pin5)
IN
B
(pin17)
IN
B
(pin16)
Corresponding output
OUT
A
(pin1)
OUT
A
(pin8)
OUT
B
(pin11)
OUT
B
(pin18)
Active Low
Input
IN
A
(pin6)
IN
A
(pin5)
IN
B
(pin17)
IN
B
(pin16)
Corresponding output
OUT
A
(pin8)
OUT
A
(pin1)
OUT
B
(pin18)
OUT
B
(pin11)
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.
SLA7032M/SLA7033M
35