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KA3031
6-Channel Motor Drive IC
Features
•
•
•
•
•
•
•
•
•
4-CH balanced transformerless (BTL) driver
2-CH (forward-reverse) control DC motor driver
Operating supply voltage (4.5V ~ 16V)
Built-in thermal shut down circuit (TSD)
Built-in under voltage lockout circuit (UVLO)
Built-in over voltage protection circuit (OVP)
Built-in mute circuit (CH1, CH2, CH3 and CH4)
Built-in normal op-amp
Built-in 5V regulator with reset
Description
The KA3031 is a monolithic integrated circuit suitable for a
6-ch motor driver which drives the tracking actuator, focus
actuator, sled motor, tray motor, change motor and spindle
motor of the CDP/CAR-CD systems.
48-QFPH-1414
Typical Applications
• Compact disk player (CDP) with tray and changer
• Compact disk player (VCD) with tray and changer
• Automotive compact disk player (CDP) with tray and
changer
• Mixing with compact disk player (CDP) and mini disk
player (MD) with tray and changer
• Other compact disk media
Ordering Information
Device
KA3031
Package
48-QFPH-1414
Operating Temp.
−35°C
~ +85°C
Rev. 1.0.1
February. 2000.
©2000 Fairchild Semiconductor International
1
KA3031
Pin Assignments
IN1.1 REG50 REG050 REF SVCC RES50
48
47
46
45
44
43
OPIN(+)OPIN(−)OPOUT PVCC2 DO1.1 DO1.2
42
41
40
39
38
37
IN1.2
1
36
DO2.1
OUT1
IN2.1
2
3
35
DO2.2
PGND3
34
IN2.2
4
32
DO3.1
OUT2
IN3.1
5
32
31
DO3.2
PGND2
6
KA3031
IN3.2
7
30
PGND1
OUT3
IN4.1
8
29
DO4.1
DO4.2
9
28
IN4.2
10
11
27
DO5.1
OUT4
CTL1
26
DO5.2
DO6.1
12
25
13
14
15
16
17
18
19
20
21
22
23
24
FWD1 REV1
CTL FWD2 REV2 SGND
MUTE1MUTE2 MUTE3 MUTE4 PVCC1 DO6.2
2
KA3031
Pin Definitions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
Pin Name
IN1.2
OUT1
IN2.1
IN2.2
OUT2
IN3.1
IN3.2
OUT3
IN4.1
IN4.2
OUT4
CTL1
FWD1
REW1
CTL2
FWD2
REW2
SGND
MUTE1
MUTE2
MUTE3
MUTE4
PVCC1
DO6.2
DO6.1
DO5.2
DO5.1
DO4.2
DO4.1
PGND
PGND
DO3.2
DO3.1
PGND
DO2.2
DO2.1
DO1.2
DO1.1
PVCC2
I/O
I
O
I
I
O
I
I
O
I
I
O
I
I
I
I
I
I
-
I
I
I
I
-
O
O
O
O
O
O
-
-
O
O
-
O
O
O
O
-
Pin Function Description
CH 1 op-amp input (−)
CH 1 op-amp output
CH 2 op-amp input (+)
CH 2 op-amp input (−)
CH 2 op-amp output
CH 3 op-amp input (+)
CH 3 op-amp input (−)
CH 3 op-amp output
CH 4 op-amp input (+)
CH 4 op-amp input (−)
CH 4 op-amp output
CH 5 motor speed control
CH 5 forward input
CH 5 reverse input
CH 6 motor speed control
CH 6 forward input
CH 6 reverse input
Signal ground
CH 1 mute
CH 2 mute
CH 3 mute
CH 4 mute
Power supply voltage (For CH 5, CH 6)
CH 6 drive output
CH 6 drive output
CH 5 drive output
CH 5 drive output
CH 4 drive output
CH 4 drive output
Power ground
Power ground
CH 3 drive output
CH 3 drive output
Power ground
CH 2 drive output
CH 2 drive output
CH 1 drive output
CH 1 drive output
Power supply voltage (For CH 1, CH 2, CH 3, CH 4)
3
KA3031
Internal Block Diagram
IN1.1
48
REG50 REG050 REF
47
46
45
SVCC
44
RES50
43
OPIN(+) OPIN(−) OPOUT PVCC2 DO1.1
42
41
−
40
39
38
DO1.2
37
IN1.2
1
+
−
SW
+
36
DO2.1
ALL MUTE
T.S.D
35
DO2.2
O.V.P
−
+
−
+
−
+
−
+
−
+
−
+
−
+
−
+
+
−
D
2P
D
2P
28
DO4.2
34
2P
2P
33
DO3.1
PGND3
OUT1
2
2.5V
IN2.1
3
+
−
−
+
+
−
+
−
+
−
+
−
IN2.2
4
OUT2
5
+
−
−
+
2P
2P
32
DO3.2
IN3.1
6
+
−
−
+
31
2P
2P
2P
2P
29
PGND2
IN3.2
7
+
−
−
+
30
PGND1
OUT3
8
S
W
M
S
C
DO4.1
IN4.1
9
IN4.2 10
S
W
M
S
C
+
−
D
2P
D
2P
27
DO5.1
OUT4 11
MUTE4
MUTE3
MUTE2
MUTE1
13
FWD1
14
REV1
15
CTL
16
FWD2
17
REV2
18
SGND
19
20
21
22
26
DO5.2
CTL1 12
25
DO6.1
23
24
MUTE1 MUTE2 MUTE3 MUTE4 PVCC1 DO6.2
Notes:
1. SW = Logic switch
2. MSC = Motor speed control
3. D = Output driver
5
Embedded System
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