SLA7024 データシートの表示（PDF） - Allegro MicroSystems
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SLA7024 Datasheet PDF : 12 Pages
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SLA7024M, SLA7026M, AND SMA7029M
HIGH-CURRENT PWM,
UNIPOLAR STEPPER MOTOR
CONTROLLER/DRIVERS
TYPICAL STEPPER MOTOR APPLICATIONS
(Half of Each Device Shown)
SLA7024M and SLA7026M
V BB
A
V b +5 V
TO
CHANNEL
A
12
VCC
REG.
2.4 kΩ
R5
VREF
14
+
IN B IN B
17
16
+
A
OUT B
18
OUT B
11
td
13 15
SENSE
10
+5 V
47 kΩ
R3
470 pF
C1
C 3 2200 pF
RS
≤1 Ω
TRUTH TABLES
(Device Types as Designated)
Dwg. EK-008
WAVE DRIVE (FULL STEP)
for SLA7024M and SLA7026M
Sequence
0
1
2
Input A
H
L
L
Input A
L
L
H
Input B
L
H
L
Input B
L
L
L
Output ON A
B
A
3
0
L
H
L
L
L
L
H
L
B
A
2-PHASE (FULL STEP) OPERATION
for SLA7024M and SLA7026M
Sequence
0
1
2
3
0
Input A
H
L
L
H
H
Input A
L
H
H
L
L
Input B
H
H
L
L
H
Input B
L
L
H
H
L
Outputs ON AB A B AB A B AB
HALF-STEP OPERATION (2-1-2 SEQUENCE)
for SLA7024M, SLA7026M, and SMA7029M
Sequence
0
1
2
3
4
5
6
7
0
Input A
H
H
L
L
L
L
L
H
H
Input A or tdA*
L
L
L
H
H
H
L
L
L
Input B
L
H
H
H
L
L
L
L
L
Input B or tdB*
L
L
L
L
L
H
H
H
L
Output(s) ON
A
AB
B AB
A
AB
B
AB
A
*Logic signals to external open-collector inverter connected to tdA and tdB.
115 Northeast Cutoff, Box 15036
™
Worcester, Massachusetts 01615-0036 (508) 853-5000
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