KA3031 [FAIRCHILD]
6-Channel Motor Drive IC; 6通道马达驱动器IC
| 型号： | KA3031 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | 6-Channel Motor Drive IC |
| 文件： | 总24页 (文件大小：361K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA3031
6-Channel Motor Drive IC
Features
Description
• 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
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
• Built-in 5V regulator with reset
Typical Applications
Ordering Information
• 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
Device
Package
Operating Temp.
KA3031
48-QFPH-1414
−35°C ~ +85°C
• Mixing with compact disk player (CDP) and mini disk
player (MD) with tray and changer
• Other compact disk media
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
DO2.1
1
2
3
4
5
6
36
35
34
32
32
31
OUT1
IN2.1
DO2.2
PGND3
IN2.2
DO3.1
OUT2
IN3.1
DO3.2
PGND2
KA3031
7
30
29
28
27
26
25
IN3.2
OUT3
IN4.1
IN4.2
PGND1
DO4.1
DO4.2
DO5.1
8
9
10
11
12
OUT4
CTL1
DO5.2
DO6.1
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
Pin Name
I/O
I
Pin Function Description
CH 1 op-amp input (−)
1
IN1.2
OUT1
IN2.1
2
O
I
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
3
4
IN2.2
I
5
OUT2
IN3.1
O
I
6
7
IN3.2
I
8
OUT3
IN4.1
O
I
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
IN4.2
I
OUT4
CTL1
O
I
FWD1
REW1
CTL2
I
I
I
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
I
-
I
CH 1 mute
I
CH 2 mute
I
CH 3 mute
I
CH 4 mute
-
Power supply voltage (For CH 5, CH 6)
CH 6 drive output
O
O
O
O
O
O
-
CH 6 drive output
CH 5 drive output
CH 5 drive output
CH 4 drive output
CH 4 drive output
Power ground
-
Power ground
O
O
-
CH 3 drive output
CH 3 drive output
Power ground
O
O
O
O
-
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
Pin Definitions (Continued)
Pin Number
Pin Name
OPOUT
OPIN(−)
OPIN(+)
RES50
SVCC
I/O
O
I
Pin Function Description
40
41
42
43
44
45
46
47
48
Opamp output
Opamp input (−)
Opamp input (+)
Regulator 5V reset
I
I
-
Signal supply voltage
Bias voltage input
Regulator 5V output
Regulator output
REF
I
REG050
REG50
IN1.1
O
O
I
CH 1 opamp input (+)
4
KA3031
Internal Block Diagram
IN1.1 REG50 REG050 REF
SVCC RES50
44 43
OPIN(+) OPIN(−) OPOUT PVCC2 DO1.1 DO1.2
42 41 40 39 38 37
48
47
46
45
−
SW
+
1
2
DO2.1
36
35
34
IN1.2
−
+
ALL MUTE
T.S.D
O.V.P
DO2.2
OUT1
2.5V
−
PGND3
3
4
IN2.1
IN2.2
OUT2
+
+
+
−
2P
2P
−
−
+
33 DO3.1
32 DO3.2
−
+
−
+
+
−
+
−
+
−
+
2P
5
6
−
−
−
+
+
2P
2P
2P
2P
PGND2
IN3.1
31
−
+
+
−
−
−
+
+
−
+
+
−
IN3.2
OUT3
IN4.1
7
PGND1
30
−
−
+
+
2P
DO4.1
DO4.2
8
9
29
28
+
D
M
S
C
S
W
2P
2P
−
D
DO5.1
DO5.2
+
27
26
IN4.2 10
D
D
M
S
C
S
2P
2P
W
−
11
12
OUT4
CTL1
MUTE4
MUTE3
MUTE2
MUTE1
25
DO6.1
13
14
15
16
17
18
SGND
19
20
21
22
23
24
FWD1 REV1
CTL FWD2 REV2
MUTE1 MUTE2 MUTE3 MUTE4 PVCC1 DO6.2
Notes:
1. SW = Logic switch
2. MSC = Motor speed control
3. D = Output driver
5
KA3031
Equivalent Circuits
Description
Pin No.
Internal circuit
Input
OPIN (+)
OPIN (−)
48, 3, 6, 9
1, 4, 7. 10
VCC
VCC
10k
10k
48 3
1
7
4
6
9
10
4k
Input
2, 5, 8, 11
opout
VCC
VCC
2
5
10k
8
11
Vr
25k
CTL
12, 15
VCC
0.1k
12 15
100k
6
KA3031
Equivalent Circuits (Continued)
Description
Pin No.
Internal circuit
Logic drive
FWD input
REV input
13, 16
14, 17
VCC
13
6
30k
14 17
30k
CH mute
19, 20
21, 22
VCC
19 20
21 22
30k
2k
Logic
drive
output
24, 25
26, 27
VCC
10k
1k
24 25
26 27
20k
1k
Vr
4-CH
drive
output
28, 29
32, 33
35, 36
37, 38
VCC
10k
28 29
32 33
36
10k
35
37 38
1k
7
KA3031
Equivalent Circuits (Continued)
Description
Pin No.
Internal circuit
Normal
opout
40
VCC
VCC
50
50
40
Normal
OPIN(+)
OPIN(−)
42
41
VCC
VCC
41
42
5k
Ref
45
VCC
0.1k
45
2k
8
KA3031
Equivalent Circuits (Continued)
Description
Pin No.
Internal circuit
RES50
43
VCC
50k
43
50k
REG050
46
VCC
2k
2k
41
10k
10k
REG50
47
VCC VCC
53k
47
10k
9
KA3031
Absolute Maximum Ratings (Ta = 25°C)
Parameter
Symbol
Value
18
3 note
Unit
V
Maximum supply voltage
Power dissipation
V
CC
P
D
W
Operating temperature
Storage temperature
Maximum output current
T
−35 ~ +85
−55 ~ +150
1
°C
°C
A
OPR
T
STG
I
OMAX
NOTE:
1. When mounted on 70mm × 70mm × 1.6mm PCB.
2. Power dissipation reduces 16mW / °C for using above Ta=25°C.
3. Do not exceed Pd and SOA.
Power Dissipation Curve
Pd (mW)
3,500
2,500
1,500
0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [°C]
Recommended Operating Conditions (Ta = 25°C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Operating supply voltage
V
4.5
-
16
V
CC
10
KA3031
Electrical Characteristics
(SV =PV
CC
=PV
CC2
=8V, Ta=25°C, unless otherwise specified)
CC1
Parameter
Symbol Conditions
Min.
Typ.
Max.
16
10
0.5
-
Units
mA
mA
V
Quiescent circuit current
All mute on current
All mute on voltage
All mute off voltage
CH mute on voltage
CH mute off voltage
I
under no-load
9
-
12
6
-
CC
I
Pin 45=GND
MUTE ALL
V
Pin 45=Variation
-
MON ALL
V
Pin 45=Variation
2
2
-
-
V
MOFF ALL
V
Pin 19, 20, 21, 22=Variation
Pin 19, 20, 21, 22=Variation
-
-
V
MON CH
V
-
0.5
V
MOFF CH
DRIVER PART (R =8Ω)
L
Input offset voltage
Output offset voltage
Maximum output voltage 1
Maximum output voltage 2
Closed-loop voltage gain
Ripple rejection ratio
Slew rate
V
-
−20
−50
4.0
7
-
-
+20
mV
mV
V
IO
V
V =2.5V
IN
+50
OO
V
V
V
V
=8V, R =8Ω
5.5
9
-
-
OM1
OM2
CC
CC
L
=13V, R =24Ω
V
L
A
VF
V =0.1V
IN
9
10.5
50
0.8
12
-
dB
dB
V/µs
RMS
RMS
RR
SR
V =0.1V
IN
, f=120kHz
-
Square, Vout=2Vp-p, f=120kHz
-
-
NORMAL OPAMP PART
Input offset voltage
Input bias current
V
-
-
−10
-
+10
mV
nA
V
OF1
I
-
6
-
-
300
B1
High level output voltage
Low level output voltage
Output sink current
Output source current
Open loop voltage gain
Ripple rejection ratio
Slew rate
V
R =50Ω
6.8
1.0
40
40
75
65
1
-
OH1
L
V
R =50Ω
L
1.8
V
OL1
I
V =−75dB, f=1kHz
IN
10
10
-
-
-
-
-
-
-
mA
mA
dB
dB
V/µs
dB
SINK1
I
V =−20dB, f=120kHz
SOURCE1
IN
GV
Square, Vout=2Vp-p, f=120kHz
O1
RR1
SR1
V =−20dB, f=1kHz
-
IN
-
-
-
Common mode rejection ratio CMRR1
-
80
11
KA3031
Electrical Characteristics (Continued)
(SV =PV
CC
=PV
CC2
=8V, Ta=25°C, unless otherwise specified)
CC1
Parameter
Symbol Conditions
Min.
Typ.
Max. Units
INPUT OPAMP PART
Input offset voltage
Input bias current
V
-
-
-
-
-
-
−10
-
+10
mV
nA
V
OF2
I
-
-
400
B2
High level output voltage
Low level output voltage
Output sink current
Output source current
Open loop voltage gain
Slew rate
V
7
7.7
0.2
800
800
80
1
-
OH2
V
-
0.5
V
OL2
I
500
-
-
-
-
-
µA
µA
dB
V/µs
dB
SINK2
I
500
SOURCE2
GV
V =−75dB, f=1kHz
-
-
-
O2
IN
SR2
Square, Vout=2Vp-p, f=120kHz
Common mode rejection ratio
5V REGULATOR PART
Regulator output voltage
Load regulation
CMRR2
V =−20dB, f=1kHz
IN
80
Vreg
I =100mA
L
4.75
−40
−20
-
5
0
0
-
5.25
+10
+30
0.5
-
V
mV
mV
V
∆V
I =0→200mA
L
R1
Line regulation
∆V
I =200mA, V =6V→9V
CC
CC
L
Reset on voltage
Reson
Resoff
-
Reset off voltage
-
2
-
V
TRAY, CHANGER DRIVER PART (R =45Ω)
L
Input high level voltage
Input low level voltage
Output voltage 1
V
V
-
-
2
-
-
-
-
V
V
IH
IH
0.5
6.8
9.5
700
+10
+10
V
V
V
V
=8V, V
CTL
=3.5V
5.2
7.5
-
6.0
8.5
300
-
V
O1
O2
CC
Output voltage 2
=13V, V
CC
=4.5V
V
CTL
Output load regulation
Output offset voltage 1
Output offset voltage 2
∆V
-
mV
mV
mV
R1
OO1
OO2
V
V
V =5V, 5V
IN
−10
−10
V =0V, 0V
IN
-
12
KA3031
Application Information
1. REFERENCE INPUT & ALL MUTE FUNCTION
Pin 45 (REF) can use the reference Input pin or the all mute signal input pin.
• Reference input
In the case of the reference input pin, you must keep the applied voltage range between 2[V] and 6.5[V] at
V
= 8[V].
CC
• All mute input
When using the all mute function pin, applied voltage condition is as follows.
All mute on voltage
All mute off voltage
Below 0.5[V]
Above 2[V]
Mute function operation
Normal operation
2. SEPARATED CHANNEL MUTE FUNCTION
These pins are used for individual channel mute operation.
• When the mute pins (pin19, 20, 21 and 22) are high level, the mute circuits are activated so that the output circuit is muted.
• When the voltage of the mute pins (pin19, 20, 21 and 22) are low level, the mute circuit is stopped and output circuits
operate normally.
• If the chip temperature rises above 175°C, then the thermal shutdown (TSD) circuit is activated and the output circuits are
muted.
- Mute 1 (pin 19)-CH1 mute control input pin.
- Mute 2 (pin 20)-CH2 mute control input pin.
- Mute 3 (pin 21)-CH3 mute control input pin.
- Mute 4 (pin 22)-CH4 mute control input pin.
3. PROTECTION FUNCTION
• Thermal shutdown (TSD)
If the chip temperature rises above 175°C, then the thermal shutdown (TSD) circuit is activated and the output circuit is will
be mute. The TSD circuit is temperature hysteresis 25°C.
• Under voltage lockout (UVLO) and over voltage protection (OVP)
It is designed to mute-operate the internal bias by the function of UVLO and OVP, when the power supply voltage falls
below 3.5[V] or above 20[V].
13
KA3031
4. REGULATOR & RESET FUNCTION
The regulator and reset circuits are as illustrated in Figure 1.
where R1=R2.
• The external circuit is composed of the transistor, KSB772 and a capacitor, about 33[µF]. The capacitor is used as a ripple
eliminator and should have good temperature characteristics.
• The regulator output voltage (pin 46) is decided as follows.
Vout = 2 × 2.5 = 5[V] (where R1 = R2)
• When the voltage of pin 43 (Vreset) is at 5[V], the regulator output voltage (pin 46) because 5[V]. If the voltage
of pin 43 is 0[V], the output voltage of pin 46 because 0[V].
V
CC
KSB772
+
REG OUT
33µF
Vreset
43
47 46
44
39
2.5V
+
R1
R2
−
KA3031
Figure 1. Regulator circuit
14
KA3031
5. FOCUS, TRACKING ACTUATOR, SPINDLE, SLED MOTOR DRIVE PART
M
Rfeed2
Rfeed2
AP2
-
AP3
+
−
Vr
IC
Rref2
Rref2
+
−
SHIFT
LEVEL
Rfeed1
AP1
−
+
45
−
Rref1
Vref
2
1
5
4
8
7
11
10
BF
−
Vin
3
6
9
48
• The voltage, Vref is the reference voltage given by the external bias voltage of the pin 45.
• The input signal (Vin) through pins 3, 6, 9 and 48 is amplified one times (Rref1 = Rfeed1) by the AP1 and then fed to the
level shift.
• The level shift produces the current due to the difference between the input signal and the arbitrary reference signal. The
current produced as +∆I and −∆I are fed into the output amplifier, where output amplifier (AP2, 3) gain is two times (all
Rref2 = Rfeed2).
• If you desire to change the gain, the input buffer amplifier (BF) can be used.
• The output stage is the balanced transformerless (BTL) driver.
• The bias voltage Vr is expressed as below;
V
CC – VBE
---------------------------
Vr =
[V]
2
15
KA3031
6. TRAY, CHANGE MOTOR DRIVE PART
out 1
26
out 2
25
M
24
27
D
D
LEVEL SHIFT
M.S.C
CTL1, 2
12
15
S.W
IN
IN
FWD
13 16
REV
14
17
• Rotational direction control
The forward and reverse rotational direction is controlled by FWD (pin 13, 16) and REV (pin 14, 17) input conditions are as
follows.
INPUT
OUTPUT
FWD
REV
H
OUT 1
OUT 2
State
Brake
H
H
L
Vr
H
Vr
L
L
Forward
Reverse
Brake
H
L
H
L
L
Vr
Vr
• where Vr is (Vcc - Vbe) / 2 = 3.65V (at Vcc=8V)
• where Out1 pins are pins 24 and 26, and out2 pins aer pins 25 and 27
• Motor speed control
- The almost maximum torque is obtained when it is used with the pins 12 and 15 (CTL1, 2) open.
- If the torque of the motor is too low, then the applied voltage at pins 12 and 15 (CTL1, 2) are 0[V].
- When motor speed controlled, the applied voltage of the pins 12 and 15 (CTL1, 2) is between 0 and 4V.
Also, if the speed control is constant, the applied voltage of the pins 12 and 15 (CTL1, 2) is between 4 and
5V.
- This IC's applied maximum voltage is 6V when V is 8V.
CC
- You must not use the applied CTL1, 2 voltage above 5.8V when V is 8V, and 3V when V is 5V.
CC CC
16
KA3031
Typical Performance Characteristics
Total circuit
Icc(mA)
Icc(mA)
<Vcc vs Icc>
<Temp vs Icc>
14
13.4
13.2
13.0
12.8
12.6
12.4
12.2
12.0
11.8
11.6
11.4
13.5
13
12.5
12
Vcc=8V
Temp= Var.
Vcc=Var.
Temp=25°C
11.5
11
5
6
7
8
9
10
11
12
13
14
-30 -10
0
10
30
40
50
60
70
80
Temp(°C)
Vcc(V)
Focus, Tracking, Spindle, Sled drive part
Vom(V)
Avf(dB)
12.0
<Vcc vs Vom>
<Vcc vs Avf>
10.0
9.0
8.0
7.0
6.0
5.0
4.0
10.0
8.0
6.0
4.0
2.0
Vcc=Var.
Temp=25°C
RL=8Ω
Vin=0.1Vrms
f=1KHz
3.0
Vcc=Vari.
Temp=25°C
RL=8Ω
2.0
1.0
0.0
0.0
4
4
5
6
7
8
9
10
11
12
13
5
6
7
8
9
10
11
12
13
Vcc(V)
Vcc(V)
Avf(dB)
10.9
Vout(V)
<Vin vs Vout>
<Temp vs Avf>
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
10.8
10.7
10.6
10.5
10.4
10.3
Vcc=8V
temp= Var.
RL=8Ω
Vcc=8V
Temp=25°C
RL=8Ω
Vin=0.1Vrms
f=1KHz
Vin= Var.
0.0
0.2
-30 -10
0
10
30
40
50
60
70
80
0.4
0.6
0.8
1
12
14
VIN (V)
Temp(°C)
17
KA3031
Typical Performance Characteristics (Continued)
Vom(V)
<Temp vs Vom>
5.52
5.50
5.48
5.46
5.44
5.42
5.40
5.38
Vcc=8V
temp= Var.
RL=8Ω
5.36
5.34
5.32
-30 -10
0
10
30
40
50
60
70
80
Temp (°C)
Tray, Change drive part
Vo (V)
Vo (V)
6.1
<Temp vs Vo>
<Vcc vs Vo>
9.0
8.0
7.0
6.0
5.0
4.0
3.0
2.0
1.0
0.0
6.0
5.9
5.8
5.7
5.6
5.5
Vcc=Var.
Temp=25°C
RL=45Ω
Vin=5V/0V
Vctl=3.5V
Vcc=8V
temp= Var.
RL=45Ω
Vin=5V/0V
Vctl=3.5V
5.4
-30
4
5
6
7
8
9
10
11
12
13
-10
0
10
30
40
50
60
70
80
Vcc(V)
Temp (°C)
Vo (V)
Vo (V)
7.0
<Vctl vs Vo>
<Vctl vs Vo>
7.0
6.0
5.0
4.0
3.0
2.0
1.0
6.0
5.0
4.0
3.0
2.0
1.0
Vcc=8V
Temp=25 °C
RL=8Ω
Vin= 5V/0V
Vctl= Var.
Vcc=8V
Temp=25 °C
RL=45Ω
Vin= 5V/0V
Vctl= Var.
0.0
0.5
0.0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
1
1.5
2
2.5
3
3.5
4
4.5
5
Vctl(V)
Vctl(V)
18
KA3031
Typical Performance Characteristics (Continued)
Regulator part
Vreg (V)
6.0
Vreg (V)
5.08
<Vcc vs Vreg>
<Temp vs Vreg>
5.06
5.04
5.02
5.00
4.98
4.96
4.94
5.0
4.0
3.0
2.0
1.0
Vcc=Var.
Temp=25 °C
IL=100mA
Vcc=8V
Temp=Var.
IL=100mA
0.0
4
- 30 - 10
0
10
30
40
50
60
70
80
5
6
7
8
9
10
11
12
13
Vcc(V)
Temp (°C)
Normal Op Amp part
Isou1(mA)
Isink1(mA)
70.0
<Vcc vs Isource>
<Vcc vs Isink>
70.0
60.0
50.0
40.0
30.0
20.0
10.0
0.0
60.0
50.0
40.0
30.0
20.0
10.0
Vcc=Var.
Temp=25 °C
RL=50Ω
Vcc=Var.
Temp=25 °C
RL=50Ω
0.0
4
4
5
6
7
8
9
10
11
12
13
5
6
7
8
9
10
11
12
13
Vcc(V)
Vcc(V)
Isou1(mA)
59.0
GVo1(dB)
86.0
<Vcc vs Open loop voltage gain>
<Temp vs Isource>
84.0
58.0
82.0
57.0
56.0
55.0
54.0
53.0
52.0
51.0
80.0
78.0
76.0
Vcc=Var.
Temp=25 °C
RL=1KΩ
Vin=100uVp_p
f=1KHz
74.0
Vcc=8V
Temp=Var.
RL=50Ω
72.0
70.0
68.0
4
-30
-10
0
10
30
40
50
60
70
80
5
6
7
8
9
10
11
12
13
Temp (°C)
Vcc(V)
19
KA3031
Typical Performance Characteristics (Continued)
Isink1(mA)
<Temp vs Isink>
60.0
50.0
40.0
30.0
20.0
Vcc=8V
temp=VAR
10.0
RL=50Ω
0.0
-30 -10
0
10
30
40
50
60
70 80
Temp (°C)
Input Op Amp part
Isou2(uA)
2500
Isink2(uA)
1600
<Vcc vs Isource>
<Vcc vs Isink>
1400
1200
1000
800
2000
1500
1000
500
0
600
Vcc=Var.
Temp=25 °C
RL=1KΩ
Vcc=Var.
Temp=25 °C
RL=1KΩ
400
200
0
4
4
5
6
7
8
9
10
11
12
13
5
6
7
8
9
10
11
12
13
Vcc(V)
Vcc(V)
GVo2(uA)
<Vcc vs Open loop voltage gain>
83
82
81
80
79
78
77
76
75
74
73
Vcc=Var.
Temp=25 °C
RL=1KΩ
4
5
6
7
8
9
10
11
12
13
Vcc(V)
20
KA3031
Test Circuits
All
mute
V
CC
Vref
2.5V
KSB772
+
O O O
P P P
~
Ripple
+
100µF
I
I O
REG OUT
IL
2
N N U
T
1
1
2
1000µF
+
20
SW1
33µF
RL
Vreset
48
47
46
45
44
43
42
41
40
39
38
37
OPIN (+)
IN1.2
1
DO2.1
36
DO2.2 35
OPIN (−)
RL
RL
OPOUT
2
3
4
5
6
OUT1
IN2.1
IN2.2
OUT2
IN3.1
PGND3
34
33
32
31
OPIN (+)
OPIN (−)
OPOUT
DO3.1
DO3.2
PGND2
KA3031
OPIN (+)
OPIN (−)
IN3.2
7
8
30
PGND1
OPOUT
OUT3
DO4.1 29
RL
RL
9
IN4.1
28
27
26
25
DO4.2
DO5.1
DO5.2
OPIN (+)
OPIN (−)
10
IN4.2
OPOUT
OUT4
11
DO6.1
RL
CTL1
12
IL
IL
13
14
15
16
17
18
19
20
21
22
23
24
CTL1
IL
IL
IN1A IN1B CTL2 IN2A IN2B
opamp part
OPIN(+)
OPOUT
OPIN(−)
SW3
2
1
1
4
2
3
1M
D
1k
SW5
50
SW7
~
A
1M
SW6
B
1
1
1
2
2
10µF
V
V
CC
CC
21
KA3031
Application Circuits
Voltage Mode Control
VCC
KSB772
+
REG OUT
Vreset
33µF
FOCUS
48 47 46 45 44 43
42 41 40 39 38 37
DO2.1
IN1.2
1
36
DO2.2 35
TRACKING
SPINDLE
2
3
4
OUT1
IN2.1
IN2.2
OUT2
IN3.1
PGND3
DO3.1
34
33
M
DO3.2 32
5
6
31
PGND2
KA3031
7
30
IN3.2
PGND1
OUT3
29
28
27
26
25
DO4.1
8
9
M
M
SLED
TRAY
IN4.1
IN4.2
DO4.2
DO5.1
DO5.2
10
11 OUT4
12
DO6.1
CTL1
13 14 15 16 17 18
19 20 21 22 23 24
M
CHANGE
SLED
MUTE
SPINDLE MUTE
TRACKING MUTE
FOCUS
MUTE
Where TY is tray motor.
CG is change motor
REF & FOCUS TRACKING SPINDLE SLED
TRAT CONTROL CHANGE
INPUT TY CG INPUT
ALL
INPUT
INPUT
INPUT INPUT
MUTE
[SERVO PRE AMP]
[CONTROLLER]
Notes:
Radiation pin is connected to the internal GND of the package.
Connect the pin to the external GND.
22
KA3031
Application Circuits
Differential Mode Control
VCC
KSB772
+
REF &
ALL
MUTE
REG OUT
Vreset
33µF
FOCUS
48 47 46 45 44 43
42 41 40 39 38 37
IN1.2
DO2.1
1
2
3
4
36
35
34
TRACKING
SPINDLE
OUT1
IN2.1
IN2.2
OUT2
IN3.1
DO2.2
PGND3
DO3.1 33
M
DO3.2
32
31
5
6
PGND2
KA3031
IN3.2
7
30
PGND1
OUT3
DO4.1 29
8
9
M
M
SLED
TRAY
IN4.1
28
27
26
25
DO4.2
DO5.1
DO5.2
IN4.2
10
OUT4
11
12
CTL1
DO6.1
13 14 15 16 17 18
19 20 21 22 23 24
M
CHANGE
SLED
MUTE
SPINDLE MUTE
TRACKING MUTE
FOCUS
MUTE
PWM1
PWM2
PWM3
PWM4
PWM5 PWM6
SPINDLE
PWM7
PWM8
Where TY is tray motor.
CG is change motor
TRAT CONTROL CHANGE
FOCUS
TRACKING
SLED
INPUT
TY CG
INPUT
[SERVO PRE AMP]
[CONTROLLER]
23
KA3031
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY
LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR
INTERNATIONAL. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body,
or (b) support or sustain life, and (c) whose failure to
perform when properly used in accordance with
instructions for use provided in the labeling, can be
reasonably expected to result in a significant injury of the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be
reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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