SLA7031M/SLA7032M/SLA7033M
■Internal Block Diagram
1
8
6
5
7
12
17
16
11
18
1,8,11,18pin
Reg.
Reg.
Description of pins
Chopping noise
blanking timer
Chopping noise
blanking timer
Oscillator
Oscillator
Excitation input signal
µ
µ
(5 s typ)
(5 s typ)
Active H
OUT A
OUT A
OUT B
OUT B
Active L
OUT A
OUT A
OUT B
OUT B
MOSFET
gate drive
circuit
MOSFET
gate drive
circuit
1pin
8pin
11pin
18pin
Chopping
OFF timer
(12 µs typ)
Chopping
OFF timer
(12 µs typ)
+
–
+
–
Synchronous
chopping
circuit
Synchronous
chopping
circuit
9
2
4
3
14
15
13
10
■Typical Connection Diagram (Recommended component values)
Active High
Vcc (46Vmax)
Excitation signal time chart
+
2-phase excitation
1-2 phase excitation
7
12
8
1
18
11
clock
INA
0
H
L
1
L
2
L
3
H
L
0
H
L
1
L
clock
0
H
L
L
L
1
H
L
2
L
L
H
L
3
L
4
L
H
L
L
5
L
6
L
L
L
H
7
H
L
0
H
L
L
L
1
H
L
2
L
L
H
L
3
L
VsA VsB
OUT
A
OUT
A
OUT
B
OUTB
6
IN
IN
IN
IN
A
IN
IN
IN
IN
A
2
INA
INA
INB
INB
SYNC A
5
A
SLA7031M
SLA7032M
SLA7033M
A
Active
High
INA
H
H
L
H
L
H
H
L
Vb (5V)
H
H
L
H
L
H
H
L
17
16
13
B
B
B
B
SYNC B
INB
H
L
L
H
L
H
L
L
H
L
RsA
9
R
EF
A
REF
B
RsB
10
GA
4
GB
15
r1
INB
H
H
H
H
3
14
r1 : 4kΩ
Rs
Rs
r2 : 1kΩ (VR)
Rs : 1Ω typ (7031M/7032M)
r2
(1 to 2W)
0.68Ω typ (7033M)
Active Low
Excitation signal time chart
2-phase excitation
Vcc (46Vmax)
1-2 phase excitation
+
clock
INA
0
L
1
H
L
2
H
L
3
L
0
L
1
clock
INA
0
1
2
H
H
L
3
H
L
4
H
L
5
H
L
6
H
H
H
L
7
L
0
1
2
3
H
L
L
H
H
H
L
H
L
L
L
H
L
H
H
L
H
L
7
12
8
1
18
11
OUT
VsA VsB
OUT
A
OUT
A
OUT
B
B
INA
H
L
H
H
L
H
L
INA
H
H
L
H
H
H
6
5
IN
IN
IN
IN
A
A
IN
IN
IN
IN
A
A
2
SYNC A
INB
L
H
L
L
INB
L
H
H
H
L
L
SLA7031M
SLA7032M
SLA7033M
Active
Low
Vb (5V)
17
16
13
B
B
B
B
INB
H
H
H
H
SYNC B
INB
H
H
H
H
H
H
r1 : 4kΩ
RsA
9
R
EF
A
R
EF
B
RsB
10
GA
4
GB
15
r1
3
14
r2 : 1kΩ (VR)
Rs : 1Ω typ (7031M/7032M)
Rs
Rs
(1 to 2W)
0.68Ω typ (7033M)
r2
■External Dimensions (ZIP18 with Fin [SLA18Pin])
(Unit : mm)
0.2
31
0.15
0.2
φ3.2 0.15×3.8 4.8
φ3.2
0.2
24.4
16.4
0.2
0.1
1.7
Part No.
Lot No.
0.2
2.45
R-End
+0.2
–0.1
+0.2
–0.1
0.6
0.65
2.2
1
+0.2
–0.1
+0.2
–0.1
+0.2
–0.1
0.6
6
7.5
0.65
1
0.55
0.6
0.7
4
17×P1.68 0.4=28.56
1
1
17×P1.68 0.4=28.56
0.2
31.3
.
. . . . . .
18
1 2 3
.
. . . . . .
18
123
Forming No. No.871
Forming No. No.872
Product Mass : Approx.6g
ICs
97
ETC [ ETC ]
