KA3014 [FAIRCHILD]
Spindle + 4-CH Motor Driver; 主轴+ 4 -CH电机驱动器
| 型号： | KA3014 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Spindle + 4-CH Motor Driver |
| 文件： | 总26页 (文件大小：412K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA3014
Spindle + 4-CH Motor Driver
Features
Description
• Built-in power save circuit
• Built-in current limit circuit
The KA3014 is a monolithic integrated circuit suitable for a
4-ch motor driver which drives the tracking actuator, focus
actuator, sled motor, loading motor and 3-phase BLDC spin-
dle motor of the MDP/CAR-MD/CAR-NAVIGATION sys-
tem.
• Built-in thermal shutdown circuit (TSD)
• Built-in hall bias
• Built-in FG signal output circuit
• Built-in rotational direction detecting circuit
• Built-in protection circuit for reverse rotation
• Built-in short brake circuit
48-QFPH-1414
• Built-in variable-regulator
• Built-in 4-CH balanced transformerless (BTL) driver
• Built-in BTL mute circuit (CH1/2, CH3 and CH4)
• Corresponds to 3.3V DSP
Target Application
Ordering Information
• Mini disk player
Device
Package
Operating Temp.
• Digital video disk player
• Car mini disk player
• Car navigation system
KA3014
48-QFPH-1414
−35°C ~ +85°C
Rev. 1.0.2
May. 2000.
©2000 Fairchild Semiconductor International
1
KA3014
Pin Assignments
FIN
(GND)
48
47
46
45
44
43
42
41
40
39
38
37
VH
1
2
3
4
5
6
36
35
34
33
32
31
DO4 +
FG
DO4 −
ECR
AVM3
EC
DO3 +
VCC2
PC1
DO3 −
BTLPGND2
KA3014
7
30
29
28
27
26
25
SIGGND
VM
BTLPGND1
DO2 +
8
CS1
DO2 −
9
SS
DO1 +
10
11
12
DIR
SB
DO1 −
DI1
13
14
15
16
17
18
19
20
21
22
23
24
(GND)
FIN
2
KA3014
Pin Definitions
Pin Number
Pin Name
VH
I/O
I
Pin Function Descrition
1
Hall bias
2
FG
O
I
FG signal output
3
ECR
Torque control reference
Torque control signal
Supply voltage
4
EC
I
5
VCC2
PC1
-
6
-
Phase compensation capacitor
Signal ground
7
SIGGND
VM
-
8
-
Motor supply voltage
Current sensor
9
CS1
I
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
S/S
I
Start/stop
DIR
O
I
3-phase rotational direction output
Short brake
SB
PWRGND
A3
-
Power ground
O
O
O
I
3-phase output 3
A2
3-phase output 2
A1
3-phase output 1
RESX
VREGX
REGOX
VCC1
AVM12
DI4
Variable regulator reset
Variable regulator
O
O
-
Variable regulator output
Supply voltage
-
BTL CH-1, 2 motor supply voltage
BTL drive input 4
I
DI3
I
BTL drive input 3
DI2
I
BTL drive input 2
DI1
I
BTL drive input 1
DO1−
DO1+
DO2−
DO2+
BTLPGND1
BTLPGND2
O
O
O
O
-
BTL drive 1 output (−)
BTL drive 1 output (+)
BTL drive 2 output (−)
BTL drive 2 output (+)
BTL power ground 1
BTL power ground 2
–
3
KA3014
Pin Definitions (Continued)
Pin Number
Pin Name
DO3–
DO3+
AVM3
DO4–
DO4+
MUTE4
MUTE3
MUTE12
AVM4
BIAS
I/O
O
O
–
O
O
I
Pin Function Descrition
BTL drive 3 output (–)
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
BTL drive 3 output (+)
BTL CH3 motor supply voltage
BTL drive 4 output (–)
BTL drive 4 output (+)
BTL drive mute CH 4
BTL drive mute CH 3
BTL drive mute CH 1, 2
BTL CH 4 motor supply voltage
BTL bias voltage
I
I
–
–
–
I
BTLSGND
H1–
BTL drive signal ground
Hall1(–) input
H1+
I
Hall1(+) input
H2–
I
Hall2(–) input
H2+
I
Hall2(+) input
H3–
I
Hall3(–) input
H3+
I
Hall3(+) input
4
KA3014
Internal Block Diagram
FIN (GND)
12
11
10
9
8
7
6
5
4
3
2
1
13
PWRGND
−
+
48
47
46
H3+
Power
Save
Absolute
Values
14
15
16
17
A3
A2
H3
−
−
+
H2+
Direction
Detector
Detector
A1
H2
−
45
44
43
RESX
H1+
VREGX
18
H1−
+
−
−
+
REGOX
19
42 BTLSGND
VCC1 20
BIAS
41
−
−
−
−
+
+
+
+
AVM12
21
22
23
24
40 AVM4
+
−
−
−
+
+
−
+
39
MUTE12
DI4
DI3
DI2
x2
x2
x2
x2
x2
x2
x2
x2
MUTE
MUTE
MUTE
38
37
MUTE3
MUTE4
25
26
27
28
29
30
31
32
33
34
35
36
FIN (GND)
5
KA3014
Equivalent Circuits
Hall bias
FG signal output
10kΩ
1
2
5Ω
50Ω
50kΩ
Torque control reference & signal
Phase compensation capacitor
2kΩ
6
3
4
50Ω
1kΩ
2kΩ
Current detector
Start / Stop
50Ω
50kΩ
2.7kΩ
10
9
30kΩ
120Ω
6
KA3014
Equivalent Circuits (Continued)
3-phase rotational direction output
Short brake
25kΩ
50Ω
1kΩ
17
11
50Ω
80kΩ
3-phase output
Variable regulator reset
50Ω
50kΩ
60kΩ
14
15
16
12
30kΩ
Variable regulator
Variable regulator output
18
50Ω
19
50Ω
7
KA3014
Equivalent Circuits (Continued)
BTL drive input
BTL drive output
26
27
28
29
32
33
35
36
22
10kΩ
50Ω
100Ω
23
24
25
20kΩ
BTL drive mute
BTL bias voltage
37
38
39
50Ω
50kΩ
41
50Ω
200Ω
30kΩ
Hall input
43
45
47
44
46
48
50Ω
1kΩ
1kΩ
50Ω
8
KA3014
Absolute Maximum Ratings ( Ta=25°C)
Parameter
Symbol
Value
Unit
V
Supply voltage (BTL signal)
Supply voltage (Spindle signal)
Supply voltage (Spindle motor)
Supply voltage (BTL motor)
Power dissipation
V
15
CC1MAX
CC2MAX
V
7
15
V
V
V
MMAX
V
15
V
MBTLMAX
P
D
3.0 note
−35 ~ +85
−55 ~ +150
1.3
W
°C
°C
A
Operating temperature
T
OPR
Storage temperature range
Maximum output current (Spindle part)
Maximum output current (BTL part)
Notes:
T
STG
I
I
OMAXS
OMAXB
1
A
1. When mounted on 70mm × 70mm × 1.6mm PCB (Phenolic resin material)
2. Power dissipation is reduced 24mW / °C for using above Ta=25°C
3. Do not exceed Pd and SOA (Safe Operating Area)
Pd (mW)
3,000
2,000
1,000
0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [°C]
Recommended Operating Conditions ( Ta=25°C)
Parameter
Symbol
Min.
Typ.
Max.
13.2
5.5
Unit
Operating supply voltage (BTL signal)
Operating supply voltage (Spindle signal)
Operating supply voltage (Spindle motor)
Operating supply voltage (BTL motor)
V
V
4.5
4.5
4.5
4.5
-
-
-
-
V
V
V
V
CC1
CC2
V
13.2
5.5
M
V
MBTL
9
KA3014
Electrical Charateristics
(SPINDLE PART, Ta=25°C, V
=5V, V =12V)
M
CC2
Parameter
Circuit current 1
Circuit current 2
START / STOP
On voltage range
Off voltage range
HALL BIAS
Symbol
Condition
Power save=0V
Min.
Typ.
0
Max.
0.1
–
Units
mA
I
–
–
CC 1
I
Power save=5V
8.0
mA
CC2
V
L-H circuit on
H-L circuit off
2.5
–
–
–
–
V
V
PSON
V
0.5
PSOFF
Hall bias voltage
HALL AMP
V
I
=20mA
HB
–
1.2
1.8
V
HB
HA
Hall bias current
In-phase in voltage range
Minimum in level
TORQUE CONTROL
In voltage range
Offset voltage (−)
Offset voltage (+)
In current
I
–
–
–
–
1
–
–
5
4.0
–
µA
V
V
1.5
60
HAR
V
mVpp
INH
E
–
0.5
−80
20
–
3.3
−20
80
V
C
E
E
E
E
=2.5V
=2.5V
−50
50
mV
mV
µA
COFF–
COFF+
CR
CR
E
E =E =2.5V
−5
−1
–
CIN
C
CR
In/output gain
G
EC
E
=2.5V, R =0.5Ω
0.41
0.51
0.61
A / V
CR
CS
FG
FG output voltage (H)
FG output voltage (L)
Input voltage range
OUTPUT BLOCK
V
I
I
= −10µA
=10µA
3.0
–
–
–
–
V
CC
V
V
V
FGH
FG
FG
V
0.5
4.0
FHL
V
Hn+, Hn− input D-range
1.5
FGR
Saturation voltage (upper TR)
Saturation voltage (lower TR)
Torque limit current
V
I = −300mA
–
–
0.9
0.2
700
1.6
0.6
840
V
V
OH
O
V
I =300mA
O
OL
TL
I
R
CS
=0.5Ω
560
mA
DIRECTION DETECTOR
Dir output voltage (H)
Dir output voltage (L)
SHORT BRAKE
V
I
I
=−10µA
=10µA
3.0
–
–
–
V
V
V
DIRH
FG
FG
CC
V
0.5
DIRL
On voltage range
V
–
–
2.5
0
–
–
V
V
V
SBON
CC
Off voltage range
V
SBOFF
0.5
10
KA3014
Electrical Charateristics (Continued)
(BTL DRIVE PART, Ta=25°C, V
=12V, V
CC1
=12V, R =24Ω)
MBTL
L
Parameter
Symbol
Condition
Min.
Typ.
Max.
Units
BTL DRIVE PART (Ta=25°C, V
Quiescent circuit current
Output offset voltage
=12V, V
=12V, R =24Ω)
CC1
MBTL
L
I
–
–
–
–
9
–
12
30
–
mA
mV
V
CC
V
OO
V
OM
−30
9.5
Maximum output
Amplitude voltage
10.5
Voltage gain
G
V =0.1V
IN
, 1kHz
10.5
–
12.0
60
1.0
–
13.5
–
dB
dB
V/µs
V
VC
RMS
RMS
Ripple rejection ratio
Slew rate
RR
V =0.1V
IN
, 120kHz
SR
120Hz, 2Vpp
–
–
Mute off voltage
V
–
–
0.5
–
MOFF
Mute on voltage
V
MON
–
2.5
–
V
VARIABLE-REGULATOR
Regulator output range
Load regulation
∆V
∆V
IL=100mA
2.0
−40
–
0
5.25
10
V
mV
mV
V
REG
∆V
IL=0 → 200mA
R1
Line regulation
IL=200mA, V =6V→ 9V
−20
0
30
CC
CC
Regulator output voltage 1
Regulator output voltage 2
V
REG1
V
REG2
IL=100mA
IL=100mA
4.75
3.135
5.0
3.3
5.25
3.465
V
Calculation of Gain & Torque Limit Current
VM
VM
−
I
O
Output
Current sense
V
S
+
R
S
CS1 (Pin 9)
Current / Voltage
Convertor
Negative
Feedback loop
−
Vin
+
I
O
R1
U
V
−
Power
Transistors
+
EC
+
+
Driver
Gm
W
−
ECR
Absolute
Values
Commutation
Distributor
+
Vmax
−
H1
H2
H3
VM
Max. output current limiting
0.255 is GM times R1 and it is a fixed value within IC.
0.255
Gain = --------------
RS
Vmax (see above block diagram) is set to 350mV.
Vmax
RS RS
350[mV]
Itl[mA] = --------------- = -----------------------
11
KA3014
Application Information
1. MUTE FUNCTION
• Mute control voltage condition
When using the mute function, the applied control voltage condition is as follows.
Mute on voltage
Mute off voltage
2.5[V] above
Mute function operation
Normal operation
Open or 0.5[V] below
• Individual channel mute function
These pins are used for individual channel mute operation.
- When the mute pins (pin 37, 38 and 39) are open or the voltages at the mute pins are below 0.5[V], the mute circuit is
stopped and BTL output circuits operate normally.
- When the mute pins (pin 37, 38 and 39) are above 2.5[V], the mute circuits are activated so that the BTL
output circuit is muted.
- If the junction temperature rises above 175°C, then the thermal shutdown (TSD) circuit is activated and all the output
circuits (4-CH BTL drivers and 3-phase BLDC driver) are muted.
2. 4-CH BALANCED TRANSFORMERLESS (BTL) DRIVER
VCC
Q1
Q2
DRIVE
AMP
DRIVE
AMP
M
27
29
33
36
26
28
X2
X2
32
35
Q3
Q4
GND
41
Vbias
Vin
+
LEVEL
SHIFT
AMP1
−
Rextern
22 23
24 25
10k
• The voltage, Vbias, is the reference voltage given by the external bias voltage of pin 41.
• The input signals, Vin, through the pins (pin 22, 23, 24 and 25) are amplified 10k/rextern times and then fed to
the level shift.
• The level shift produces the current due to the difference between the input signal (Vin) and the arbitrary
reference voltage (Vbias). The current produced as + ∆I and − ∆I are fed into the drive buffers.
• The drive buffer operates the power TR of the output stage according to the state of the input signal (Vin).
• The output stage is the BTL driver, and the motor (or actuator) rotates in forward direction when TR
Q1 and TR Q4 are on. On the other hand, if TR Q2 and TR Q3 are on, the motor (or actuator) is rotating in
reverse direction.
• When the input signal Vin, through the pin (pin 22, 23, 24 and 25) is below the Vbias, then the motor (actuator) moves in
forward direction.
• When the input signal Vin, through the pin (pin 22, 23, 24 and 25) is above the Vbias, then the motor (actuator)
moves in reverse direction.
• To change the gain, Modify the external resistor's value (Rextern)
12
KA3014
3. TORQUE & OUTPUT CURRENT CONTROL
Torque & output current control
V
V
M
M
R
NF
+
−
V
RNF
Torque sense amp
I
O
Current sense amp
V
AMP
−
Gain
Controller
E
Driver
C
+
+
M
−
TSD
E
CR
• By amplifying the voltage difference between E and E from the servo IC, the torque sense amp produces the input
CR
C
(V
) for the current sense amp.
• The current sense amp produces the input for the gain controller to allow the output current (I ) of the driver to be
AMP
O
controlled by the input voltage (V
), where the output current (I ) is detected by the sense resistor (R ) and is
NF
AMP
O
converted into V
.
RNF
• In the end, the signals of the servo IC control the velocity of the motor by controlling the output current (I ) of the driver.
O
• When the junction temperature rises up to about 175°C, then the output drive circuit will shut down.
• The range of the torque control input voltage is as shown below.
V
RNF
[V]
Reverse
Forward
Rotation
Ec < E
Ec > E
Forward rotation
CR
CR
Stop after detecting
reverse rotation
Ecoff−
Ecoff+
3 mV
0
E
-E [V]
C
CR
The input range (E ) of the torque sense amp is 0.5V ~ 3.3V.
C
13
KA3014
4. POWER SAVE FUNCTION
• .
Bias block
100k
V
CC
10
30KΩ
Start
Stop
Q1
12KΩ
• The power save circuit is activated by operating TR Q1.
• When the SS (Start / Stop) pin 10 is high (V ), the TR Q1 is turned on and the bias circuit is enabled.
CC
On the other hand, when the SS (Start/Stop) pin 10 is open or low (GND), the TR Q1 is turned off and the bias circuit is
disabled.
• The power save operation controlled by SS (pin 10) input conditions is as follows;
Pin #10
High
KA3014
Start
Opin / Low
Stop
14
KA3014
5. SHORT BRAKE FUNCTION
V
M
MOTOR
OFF
Drive logic
V
CC
14
12
15
1KΩ
ON
16
Q1
ON
OFF
80KΩ
When the pick-up moves from the inner to the outer spindle of the MD(Mini Disk), the brake function of the reverse voltage is
commonly employed to rate the rotational velocity of the spindle motor.
However, if the spindle motor rotates rapidly, the brake function of the reverse voltage may produce too much heat at the drive
IC.
To remove these shortcomings and to enhance efficiency, the short brake function is added to KA3014. When the short brake
function is active, all upper power transistors are turned off and the lower power transistors turned on, so as to reduce the rota-
tional velocity of the motor. The short brake operation controlled by SB (pin 12), and the input conditions are as follows.
Pin #12
High
Short brake
On
Off
Low
6. THERMAL SHUTDOWN (TSD) FUNCTION
When the junction temperature rises up to 175°C, then the output drive circuit shuts down, when the junction temperature falls
off to 160°C, the output drive circuit operates normally. It has the temperature hysteresis of about 15°C.
15
KA3014
7. ROTATING DIRECTION DETECTION FUNCTION
V
CC
+
H2+
11
DIR
R
−
H2−
Rotation
Forward
Reverse
DIR
Low
11
D
Q
E
E
< E
> E
C
CR
CR
CK
High
C
+
H3+
−
D-F/F
H3−
• The forward and reverse rotations of the MD are detected by the circuit, as shown in the above table.
• The rotational direction of the MD can be learned by the output waveforms of the hall sensor and/or the driver.
If the hall sensors turn on in the order, H1→H2→H3, then this indicates reverse rotation. The output waveforms of the hall
sensors are as shown below.
H1
H2
H3
( a)
Inversely, if the hall sensors turn on in the order, H3 → H2 → H1, then this shows forward rotation. The output waveforms of
the hall sensors are as shown below\.
H1
H2
H3
( b)
.
16
KA3014
8. REVERSE ROTATION PREVENTING FUNCTION
E
+
C
Current
Sense
Amp
E
−
CR
H2+
+
H2−
−
D
Q
CK
H3+
+
Gain
Driver
M
Controller
−
H3−
D-F/F
• The forward and reverse rotation of the motor are detected, as shown in the table below. Consequently at reverse rotation,
the D-F/F output Q becomes low and cuts off the output current sense amp, resulting in the stoppage of the gain controller
function.
• When the MD is rotating in forward direction, E >E is sometimes controlled to retard and/or stop the MD.
CR
C
As the controlling time of E >E gets longer, MD slows down, stops, and then rotates in the reverse direction. To prevent
CR
C
the MD from rotating in the reverse direction, a reverse rotation preventing function is required.
Its operational principles are discussed below.
Reverse rotation preventer
E <E E >E
CR
Rotation
H2
H3
D-F/F
C
CR
C
Forward
Reverse
H
L
H → L
H → L
H
L
Forward
–
Brake and stop
stop
9. FG OUTPUT FUNCTION
The FG output detects the number of rotations of the MD. This is generated from zero-crossing of the hall sensor output wave-
forms. The FG output circuit is as shown below.
+
H1
−
+
H2
−
FG OUTPUT
+
H3
−
17
KA3014
10. HALL SENSOR CONNECTION
External hall sensors are used in series or in parallel connection as shown below.
V
V
CC
CC
HALL 1
HALL 2
HALL 3
HALL 1
HALL 2
HALL 3
1
1
VH
VH
18
KA3014
11. HALL INPUT OUTPUT TIMING CHART
The 3-phase hall signal is amplified in the hall amplifiers and sent to the matrix section, where the signal is further amplified.
After the signal is converted to a current in the amplitude control circuit, the current is supplied to the output driver, which then
provides a motor drive current. The phases of the hall input signal, output voltage, and output current are shown below.
H1 +
H2 +
H3 +
A1 output current
A1 output voltage
A2 output current
A2 output voltage
A3 output current
A3 output voltage
19
KA3014
Typical Performance Characteristics
Icc1(A)
Icc2(A)
10
Vcc vs Icc1
0.015
Vcc vs Icc2
8
6
4
2
0.010
0.005
0.000
SS = 5V
8
0
0
0
2
4
6
8
10 12 14 16 18 20
Vcc(V)
2
4
6
10
Vcc(V)
Icc1(mA)
Icc2(mA)
8.0
Temp vs Icc1
Temp vs Icc2
11.0
10.9
10.8
10.7
10.6
10.5
10.4
10.3
10.2
10.1
7.8
7.6
7.4
7.2
Vcc =12V
SS = 5V
Vcc = 12V
75
10.0
-35
7.0
-35
-25
0
25
50
90
-25
0
25
50
75
90
Temp (°C)
Temp (°C)
Vom(V)
Gvo(dB)
13.0
Vcc vs Vom
Vcc vs Gvo (5V)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
12.5
12.0
11.5
11.0
10.5
Input = 0.5V, 4.5V
Bias = 2.5V
Rin = 10KΩ
Vcc1 = 5V
Vin = 0.1V rms
f = 1KHz
Rin=10KΩ
10.0
4.0
3.0 3.5
4.0
4.5
5.0
5.5 6.0
6.5 7.0
Vcc(V)
4.5
5.0
5.5
6.0
6.5
7.0
Vcc(V)
20
KA3014
Typical Performance Characteristics (Continued)
Gvo(dB)
13.0
Vout(V)
Vcc1 vs Gvo(12V)
Vin vs Vout (5V)
4
3
12.5
12.0
11.5
11.0
10.5
2
1
0
-1
-2
-3
Vcc1 = 12V
Vin = 0.1V rms
f = 1KHz
Vcc1 = 5V
Bias = 2.5V
Rin=10KΩ
Rin=10KΩ
10.0
9
-4
0
10
11
12
13
14
15
1
2
3
4
5
6
7
8
Vcc(V)
Vin(V)
Vout(V)
15
Vin vs Vout (12V)
10
5
0
-5
Vcc1 = 12V
Bias = 2.5V
Rin=10KΩ
-10
-15
0
1
2
3
4
5
6
7
8
Vin(V)
Vol(mV)
500
Voh(V)
1.2
Io vs Voh
Io vs Vol
1.0
0.8
0.6
0.4
0.2
400
300
200
100
0
Io = source current
Io = source current
0
50 100 150 200 250 300 350 400 450 500
50
150
225
275
325
375
450
Io(mA)
Io(mA)
21
KA3014
Typical Performance Characteristics (Continued)
Vrnf(mV)
350
Vrnf(mV)
350
Ec vs Vrnf
Ec vs Vrnf
300
250
200
150
100
50
300
250
200
150
100
50
Ecr = 2.5V
RNF=0.5Ω
Ecr = 1.6V
RNF=0.5Ω
0
0
0
0
1
2
3
4
5
1
2
3
4
5
Ec(V)
Ec(V)
22
KA3014
Test Circuits 1
BTL Drive Part
10µF
12V
2.5V
42 41 40 39 38 37
48 47 46 45 44 43
V
RL4’
RL4
VH
36
35
34
1
2
3
4
5
6
DO4+
SW4
12V
10µF
FG
DO4−
ECR
AVM3
33
32
31
EC
DO3+
SW3
RL3’
RL3
VCC2
DO3−
PC1
BTLPGND2
V
V
KA3014
RL2
7
8
30
29
SIGGND
VM
BTLPGND1
DO2+
SW2
9
CS1
SS
DO2−
DO1+
DO1−
DI1
28
27
26
25
10
11
12
DIR
SB
SW1
RL1
V
13
14 15 16 17
18
19
20 21
22 23 24
A
SERVO AMP
TRACKING
FOCUS
10µF
12V
10µF
BTL SVCC
12V
SLED
CONTROL TRAY
23
KA3014
Test Circuits 2
Spindle Motor Drive Part
H3+
H2+
H1+
H2− H1−
H3−
A
A
A
A
A
A
V
V
48
47 46 45
44 43
42 41
40 39 38
37
SW12
SW13
36
1
2
3
4
5
6
VH
DO4+
DO4− 35
FG
2.5V
AVM3
ECR
34
33
32
31
E
C
DO3+
EC
SW14
DO3−
VCC2
PC1
5V
BTLPGND2
A
KA3014
SW15
30
29
28
7
8
9
BTLPGND1
DO2+
12V
SIGGND
VM
DO2−
CS1
V
SW16
DO1+ 27
10 SS
V
11
26
25
DO1−
DIR
SW17
12
DI1
SB
IFR
SW18
13 14 15
16 17
18
19
20 21
22 23 24
VSB
SW19
SW20
24
KA3014
Application Circuits
+5V
48 47 46 45 44 43
42
41
40 39
38 37
1
2
3
4
5
6
VH
36
35
34
33
32
31
DO4+
10K
TRAY
MOTOR
FG SIGNAL
100pF
DO4−
FG
AVM3
SERVO
ECR
TORQUE
CONTROL
+5V
DO3+
EC
SLED
MOTOR
DO3−
VCC2
PC1
VCC
BTLPGND2
0.1µF
KA3014
BTLPGND1 30
7
8
SIGGND
VM
DO2+
29
12V
FOCUS
ACTUATOR
DO2−
CS1
9
28
SYSTEM
CONTROL
DO1+
SS
DIR
SB
27
26
10
11
12
TRACKING
ACTUATOR
ROTATE
DO1−
DIRECTION
DI1 25
SHORT
BREAK
13 14 15 16 17 18
19
20 21
VCC
22 23 24
SERVO AMP
+5V
TRACKING
FOCUS
SLED
xxV
RESET
CONTROL TRAY
VARIABLE
VOLTAGE
S/S
VCC
25
KA3014
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.
www.fairchildsemi.com
12/1/00 0.0m 001
Stock#DSxxxxxxxx
2000 Fairchild Semiconductor International
相关型号：
KA301AD
Operational Amplifier, 1 Func, 10000uV Offset-Max, BIPolar, PDSO8, 0.225 INCH, SOP-8
SAMSUNG
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