KA9258BDTF [FAIRCHILD]
CD Motor Driver, PDSO28, 0.375 INCH, HEAT SINK, SSOP-28;
| 型号： | KA9258BDTF |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | CD Motor Driver, PDSO28, 0.375 INCH, HEAT SINK, SSOP-28 驱动 CD 光电二极管 接口集成电路 |
| 文件： | 总28页 (文件大小：464K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
KA9258D
4-Channel Motor Driver
Features
Description
• 1-phase, full-wave, linear DC motor driver
• Output gain adjustable
• Built in OP-amp
The KA9258D is a monolithic integrated circuit, suitable for
4-CH motor driver which drives tracking actuator, focus
actuator, sled motor and loading motor of CD/CD-ROM/
DVD system, and can also drive spindle motor of CD
system.
• Built in mute function
• Built in level shift circuit
• Built in thermal shutdown circuit (TSD)
• Operating range 6~13.2V
28-SSOPH-375
Typical Applications
Ordering Information
• Compact disk player (CDP)
• Video compact disk player (VCD)
• Automotive compact disk player
• Other compact disk media
Device
Package
Operating Temp.
−40°C ~ +85°C
−40°C ~ +85°C
KA9258BD 28-SSOPH-375
KA9258BDTF 28-SSOPH-375
Rev. 1.0.1
February. 2000.
©2000 Fairchild Semiconductor International
1
KA9258D
Pin Assignments
FIN
(GND)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
KA9258D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FIN
(GND)
2
KA9258D
Pin Definitions
Pin Number
Pin Name
I/O
O
O
I
Pin Function Description
1
DO1.1
DO1.2
DI1.1
Drive output
Drive output
Drive input
2
3
4
DI1.2
I
Drive input
5
REG
-
Regulator
6
REO
O
I
Regulator output
Mute
7
MUTE
GND1
DI2.1
8
-
Ground 1
9
I
Drive input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
DI2.2
I
Drive input
DO2.1
DO2.2
GND2
OPOUT
OPIN(−)
OPIN(+)
DO3.1
DO3.2
DI3.1
O
O
-
Drive output
Drive output
Ground 2
O
I
Op-amp output
Op-amp input (−)
Op-amp input (+)
Drive output
Drive output
Drive input
I
O
O
I
DI3.2
I
Drive input
V
V
-
Supply voltage
Supply voltage
2.5V bias voltage
Drive input
CC1
CC2
-
VREF
DI4.1
I
I
DI4.2
I
Drive input
DO4.1
DO4.2
GND3
O
O
-
Drive output
Drive output
Ground 3
3
KA9258D
Internal Block Diagram
28
27
26
+
25
24
23
22
21
20
19
18
+
17
16
15
10k
10k
−
−
−
TSD
Level
shift
Level
shift
10k
10k
−
−
−
−
−
Regulator
10k
10k
Mute
Level
shift
−
Level
shift
+
−
+
2
−
50k
10k
6
10k
10k
1
3
4
5
7
8
9
10
11
12
13
14
4
KA9258D
Equivalent Circuits
Driver input
Driver output
VCC
10k
50
3
10
2.5V
11.8k
0.58k
19 25
1
2
11 12
17 18 26 27
20k
50
4
9
100
20 24
V
REF1
Regulator
Regulator output
VCC VCC
VCC
VCC
53k
23k
VCC
50
5
2k
2k
6
50
10k
10k
10k
Mute input
Bias input
VCC
100k
50
50k
23
50
7
50k
5
KA9258D
Equivalent Circuits (Continued)
Op amp output
Op amp input
VCC
VCC
VCC
VCC
VCC
15
16
50
50
50
50
14
50
4.8k
4.8k
Absolute Maximum Ratings (Ta = 25°C)
Parameter
Symbol
Value
18
Unit
V
Supply voltage
V
CC
Power dissipation
Operating temperature
Storage temperature
Maximum output current
Notes
P
1.7note
−40 ~ +85
−55 ~ +150
1
W
D
T
OPR
°C
°C
A
T
STG
I
OMAX
1. When mounted on 76.2mm × 114mm × 1.57mm PCB (Phenolic resin material).
2. Power dissipation reduces 13.6mW / °C for using above Ta=25°C
3. Do not exceed Pd and SOA (Safe Operating Area).
Power Dissipation Curve
Pd (mW)
3,000
2,000
1,000
0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [°C]
Recommended Operating Condition (Ta = 25°C)
Parameter
Symbol
Value
6 ~ 13.2
Unit
Operating supply voltage
V
V
OPR
6
KA9258D
Electrical Characteristics (Ta = 25°C)
A. Regulator
Parameter
Regulator output voltage
Load regulation
Symbol
Conditions
I =100mA
Min.
4.75
Typ.
Max. Units
V
5
0
0
5.25
10.0
20.0
V
REG
L
∆V
I =0 ~ 200mA
L
−40.0
mV
mV
RL
Line regulation
∆V
I =200mA, V =6 ~ 9V −10.0
L CC
CC
B. Drive
Parameter
Quiescent circuit current
Input offset voltage
Symbol
Conditions
Min.
5.5
Typ.
9.5
0
Max. Units
I
V =0
13.5
mA
mV
CCQ
I
V
-
-
−5.0
−30
0.5
5.0
OF
Output offset voltage
Maximum sink current
Maximum source current
Maximum output voltage
Closed loop voltage gain
Ripple rejection ratio
Slew rate
V
0
30
OO
I
R =4Ω, V
CC
0.8
0.8
3.0
6.5
80.0
2.0
-
A
SINK
L
I
R =4Ω, GND
0.5
-
SOURCE
L
V
V =2V
I
, 1kHz
RMS
2.5
-
7.5
-
V
OM
A
VF
V =0.1V
RMS
, 1kHz
4.5
dB
I
RR
SR
V =−20dB, 120Hz
60.0
1.0
I
100Hz, Square wave
-
V / µs
C. OP AMP
Parameter
Input offset voltage
Input bias current
Symbol
Conditions
Min.
−5
-
Typ.
-
Max. Units
V
-
+5
mA
nA
OF1
I
B1
-
-
300
High level output voltage
Low level output voltage
Output sink current
Output source current
Open loop voltage gain
Ripple rejection ratio
Slew Rate
V
-
6
-
-
V
OH1
V
-
-
-
1.8
V
OL1
I
RL=50Ω, GND
10
10
65
50
0.5
40
50
78
70
1
-
-
-
-
-
mA
mA
dB
SINK1
IS
RL=50Ω, V
OURCE1
CC
G
V =−75dB, f=1kHz
IN
V =−20dB, f=120kHz
VO1
RR1
SR1
dB
IN
Square, V
f=120kHz
=2Vp-p,
OUT
V / µs
Common mode rejection ratio
CMRR1
V =−20dB, f=1kHz
IN
70
84
-
dB
7
KA9258D
Application Information
1. MUTE
Output driver
bias
Pin #7
High
Mute circuit
Turn-off
7
Low
Turn-on
Open
Turn-on
• When the mute pin #7 is open or the voltage of the mute pin #7 is below 0.5V, the mute circuit is activated so that the output
circuit will be muted.
• When the voltage of the mute pin is above 2V, the mute circuit is disabled and the output circuit operates normal.
• If the chip temperature rises above 175°C, then the TSD (Thermal Shutdown) circuit is activated and the output circuit is
muted.
2. TSD (THERMAL SHUTDOWN)
V
REF BG
Output driver
bias
R11
R12
Q11
• The V
REF BG
is the output voltage of the band-gap-referenced biasing circuit and acts as the input voltage of the TSD
circuit.
• The base-emitter voltage of the TR, Q11 is designed to turn-on at below voltage.
= V × R12 / (R11 + R12) = 460mV
V
BE
REF BG
• When the chip temperature rises up to 175°C, then the turn-on voltage of the Q11 would drop down to 460mV.
(Hysteresis: 25°C)
Hence, the Q11 would turn on so the output circuit will be muted.
8
KA9258D
3. OP-AMP
OP-amp is integrated in the IC for user’s convenience.
AMP-I(+)
16 pin
+
14 pin
AMP-O
AMP -I(−)
15 pin
−
4. DRIVER
−∆I
Buffer
+
AMP
VREF
+
Level
shift
(2.5V)
−
−∆V
+∆V
−
Q1
Q3
Q2
Q4
3
10
M
19 25
1
2
10k
10k
11
17
27
12
18
26
Buffer
+∆I
4
9
24
20
+
100k
−
• The voltage, V
, is the reference voltage given by the bias voltage of the pin #23.
REF
• The input signal through the pin #3 is amplified by 10k/10k times 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 is fed into the driver buffer.
• Driver Buffer operates the power TR of the output stage according to the state of the input signal.
• The output stage is the BTL driver and the motor is rotating in forward direction by operating TR Q1 and TR Q4. On the
other hand, if TR Q2 and TR Q3 is operating, the motor is rotating in reverse direction
• When the input voltage through the pin #3 is below the V , then the direction of the motor in forward direction.
REF
• When the input voltage through the pin #3 is above the V
, then the direction of the motor in reverse direction.
REF
• If it is desired to change the gain, then the pin #4 or #24 can be used.
5. Connect a by-pass capacitor, 0.1µF between the supply voltage source.
V
CC1
22
V
CC2 21
104
6. Radiation fin is connecting to the internal GND of the package.
Connect the fin to the external GND.
9
KA9258D
Typical Performance Characteristics
V
CC vs. ICC
VCC vs. Imute
10
8
13.5
11.5
9.5
6
4
pin23=2.5
7.5
2
0
5.5
4
6
8
10
12
14
16
18
20
4
6
8
10
12
14
16
18
20
V
CC [V]
V
CC [V]
V
CC vs. Vreg
VCC vs. Isink
5.25
5.15
5.05
4.95
4.85
4.75
1300
1100
900
700
500
pin23=2.5
RL=4Ω
pin23=2.5
16 18
4
6
8
10
12
14
20
4
6
8
10
12
14
V
CC [V]
V
CC [V]
VCC vs. Vreg
VCC vs. Isink
1400
1200
1000
800
7
6
5
4
3
2
1
0
pin23=2.5
Vin=0.1Vrms
f=1kHz
600
400
pin23=2.5
RL=4Ω
RL=8Ω
4
6
8
10
12
14
4
6
8
10
12
14
16
18
20
V
CC [V]
VCC [V]
10
KA9258D
Typical Performance Characteristics (Continued)
Temp vs Icc
Temp vs Iccm
6
5
4
3
2
1
0
13.5
11.5
9.5
7.5
5.5
Vcc=13
Vpin23=2.5
pin23=2.5
75
-25
0
25
Temp [°C]
50
100
-25
0
25
50
Temp [°C]
75
100
Temp vs Vreg
Temp vs Isource
1500
1400
1300
1200
1100
1000
5.25
5.15
5.05
4.95
4.85
4.75
pin23=2.5
RL=4Ω
Vcc=13
-25
0
25
50
75
100
-25
0
25
50
75
100
Temp [°C]
Temp [°C]
Temp vs Isink
1300
1250
1200
1150
1100
1050
1000
Vcc=13V
Temp=vari
pin23=2.5
RL = 4Ω
-25
0
25
50
75
100
Temp [°C]
11
KA9258D
Test Circuits
50kΩ 50kΩ
OPI
+
470µF
1
0
2
1MΩ
PC-V
10µF
SW17
+
+
V
1000µF
3
2
10kΩ
SW16
1kΩ
SW14
SW15
10kΩ
1kΩ
0
0
1MΩ
Open
0
SW5
0
SW6
1
SW8
2
1
1
SW9
1
1
Short
2
2
2
OPIN(−)
15
16
14
13
12
11
10
9
OPOUT
4Ω
4Ω
4Ω
OPIN(+) GND2
V
V
DO2.2
DO3.1
17
SW7
8Ω
SW10
DO3.2
DO2.1
18
DR2
10µF
+
10µF
DI3.1
DI2.2
19
+
DI2.1
GND
20 DI3.2
DR3
21
VCC1 K
8
A
9
2
5
8
D
MUTE
1
SW4
V
CC
2
7
22 VCC2 MUTE
100µF
+
23 Vref
REO
6
5
2.5V
DR4
IL
DI4.1
24
25
26
27
28
VREF
KS8772
10µF
Pin 21, 22
4
3
2
1
DI4.2
DI1.2
DI1.1
+
DR1
+
DO4.1
10µF
SW13
8Ω
DO4.2 DO1.2
8Ω
SW3
GND3
DO1.1
4Ω
4Ω
V
1
2
1
2
4Ω
4Ω
SW11
SW12
0
0
1
2
SW2
SW1
0
12
KA9258D
Application Circuits
15 OPIN(−)
14
13
12
OPOUT
GND2
OPIN(+)
DO3.1
DO3.2
16
17
18
19
20
21
DO2.2
SPINDLE
MOTOR
SLED MOTOR
DO2.1 11
SPINDLE
10
DI3.1
DI3.2
DI2.2
SERVO
K
A
9
DI2.1
GND
9
8
SLED
MUTE
VCC1
OFF: HIGH
ON: LOW
2
BIAS
V
CC
5
5V
VCC2
7
6
5
4
3
2
1
22
23
24
25
26
27
28
MUTE
REO
8
REG.OUT
D
Vref
TRACKING
22 UF
VREF
DI1.2
DI4.1
DI4.2
AMP
104
V
CC
FOCUS
DI1.1
DO1.2
DO1.1
DO4.1
DO4.2
GND3
TRACKING
ACTUATOR
FOCUS
ACTUATOR
Thermal Shut Down Circuit
The IC breaks down by over heating when overload condition continues for a long time. KA9258D has built-in thermal shut
down circuit to prevent this case. When IC temperature rises over 175°C, the circuit operates and protects the IC from break-
down.
13
KA9258D
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
www.fairchildsemi.com
KA9258D
4-Channel Motor Driver
Features
Description
• 1-phase, full-wave, linear DC motor driver
• Output gain adjustable
• Built in OP-amp
The KA9258D is a monolithic integrated circuit, suitable for
4-CH motor driver which drives tracking actuator, focus
actuator, sled motor and loading motor of CD/CD-ROM/
DVD system, and can also drive spindle motor of CD
system.
• Built in mute function
• Built in level shift circuit
• Built in thermal shutdown circuit (TSD)
• Operating range 6~13.2V
28-SSOPH-375
Typical Applications
Ordering Information
• Compact disk player (CDP)
• Video compact disk player (VCD)
• Automotive compact disk player
• Other compact disk media
Device
Package
Operating Temp.
−40°C ~ +85°C
−40°C ~ +85°C
KA9258BD 28-SSOPH-375
KA9258BDTF 28-SSOPH-375
Rev. 1.0.1
February. 2000.
©2000 Fairchild Semiconductor International
1
KA9258D
Pin Assignments
FIN
(GND)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
KA9258D
1
2
3
4
5
6
7
8
9
10
11
12
13
14
FIN
(GND)
2
KA9258D
Pin Definitions
Pin Number
Pin Name
I/O
O
O
I
Pin Function Description
1
DO1.1
DO1.2
DI1.1
Drive output
Drive output
Drive input
2
3
4
DI1.2
I
Drive input
5
REG
-
Regulator
6
REO
O
I
Regulator output
Mute
7
MUTE
GND1
DI2.1
8
-
Ground 1
9
I
Drive input
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
DI2.2
I
Drive input
DO2.1
DO2.2
GND2
OPOUT
OPIN(−)
OPIN(+)
DO3.1
DO3.2
DI3.1
O
O
-
Drive output
Drive output
Ground 2
O
I
Op-amp output
Op-amp input (−)
Op-amp input (+)
Drive output
Drive output
Drive input
I
O
O
I
DI3.2
I
Drive input
V
V
-
Supply voltage
Supply voltage
2.5V bias voltage
Drive input
CC1
CC2
-
VREF
DI4.1
I
I
DI4.2
I
Drive input
DO4.1
DO4.2
GND3
O
O
-
Drive output
Drive output
Ground 3
3
KA9258D
Internal Block Diagram
28
27
26
+
25
24
23
22
21
20
19
18
+
17
16
15
10k
10k
−
−
−
TSD
Level
shift
Level
shift
10k
10k
−
−
−
−
−
Regulator
10k
10k
Mute
Level
shift
−
Level
shift
+
−
+
2
−
50k
10k
6
10k
10k
1
3
4
5
7
8
9
10
11
12
13
14
4
KA9258D
Equivalent Circuits
Driver input
Driver output
VCC
10k
50
3
10
2.5V
11.8k
0.58k
19 25
1
2
11 12
17 18 26 27
20k
50
4
9
100
20 24
V
REF1
Regulator
Regulator output
VCC VCC
VCC
VCC
53k
23k
VCC
50
5
2k
2k
6
50
10k
10k
10k
Mute input
Bias input
VCC
100k
50
50k
23
50
7
50k
5
KA9258D
Equivalent Circuits (Continued)
Op amp output
Op amp input
VCC
VCC
VCC
VCC
VCC
15
16
50
50
50
50
14
50
4.8k
4.8k
Absolute Maximum Ratings (Ta = 25°C)
Parameter
Symbol
Value
18
Unit
V
Supply voltage
V
CC
Power dissipation
Operating temperature
Storage temperature
Maximum output current
Notes
P
1.7note
−40 ~ +85
−55 ~ +150
1
W
D
T
OPR
°C
°C
A
T
STG
I
OMAX
1. When mounted on 76.2mm × 114mm × 1.57mm PCB (Phenolic resin material).
2. Power dissipation reduces 13.6mW / °C for using above Ta=25°C
3. Do not exceed Pd and SOA (Safe Operating Area).
Power Dissipation Curve
Pd (mW)
3,000
2,000
1,000
0
0
25
50
75
100
125
150
175
Ambient temperature, Ta [°C]
Recommended Operating Condition (Ta = 25°C)
Parameter
Symbol
Value
6 ~ 13.2
Unit
Operating supply voltage
V
V
OPR
6
KA9258D
Electrical Characteristics (Ta = 25°C)
A. Regulator
Parameter
Regulator output voltage
Load regulation
Symbol
Conditions
I =100mA
Min.
4.75
Typ.
Max. Units
V
5
0
0
5.25
10.0
20.0
V
REG
L
∆V
I =0 ~ 200mA
L
−40.0
mV
mV
RL
Line regulation
∆V
I =200mA, V =6 ~ 9V −10.0
L CC
CC
B. Drive
Parameter
Quiescent circuit current
Input offset voltage
Symbol
Conditions
Min.
5.5
Typ.
9.5
0
Max. Units
I
V =0
13.5
mA
mV
CCQ
I
V
-
-
−5.0
−30
0.5
5.0
OF
Output offset voltage
Maximum sink current
Maximum source current
Maximum output voltage
Closed loop voltage gain
Ripple rejection ratio
Slew rate
V
0
30
OO
I
R =4Ω, V
CC
0.8
0.8
3.0
6.5
80.0
2.0
-
A
SINK
L
I
R =4Ω, GND
0.5
-
SOURCE
L
V
V =2V
I
, 1kHz
RMS
2.5
-
7.5
-
V
OM
A
VF
V =0.1V
RMS
, 1kHz
4.5
dB
I
RR
SR
V =−20dB, 120Hz
60.0
1.0
I
100Hz, Square wave
-
V / µs
C. OP AMP
Parameter
Input offset voltage
Input bias current
Symbol
Conditions
Min.
−5
-
Typ.
-
Max. Units
V
-
+5
mA
nA
OF1
I
B1
-
-
300
High level output voltage
Low level output voltage
Output sink current
Output source current
Open loop voltage gain
Ripple rejection ratio
Slew Rate
V
-
6
-
-
V
OH1
V
-
-
-
1.8
V
OL1
I
RL=50Ω, GND
10
10
65
50
0.5
40
50
78
70
1
-
-
-
-
-
mA
mA
dB
SINK1
IS
RL=50Ω, V
OURCE1
CC
G
V =−75dB, f=1kHz
IN
V =−20dB, f=120kHz
VO1
RR1
SR1
dB
IN
Square, V
f=120kHz
=2Vp-p,
OUT
V / µs
Common mode rejection ratio
CMRR1
V =−20dB, f=1kHz
IN
70
84
-
dB
7
KA9258D
Application Information
1. MUTE
Output driver
bias
Pin #7
High
Mute circuit
Turn-off
7
Low
Turn-on
Open
Turn-on
• When the mute pin #7 is open or the voltage of the mute pin #7 is below 0.5V, the mute circuit is activated so that the output
circuit will be muted.
• When the voltage of the mute pin is above 2V, the mute circuit is disabled and the output circuit operates normal.
• If the chip temperature rises above 175°C, then the TSD (Thermal Shutdown) circuit is activated and the output circuit is
muted.
2. TSD (THERMAL SHUTDOWN)
V
REF BG
Output driver
bias
R11
R12
Q11
• The V
REF BG
is the output voltage of the band-gap-referenced biasing circuit and acts as the input voltage of the TSD
circuit.
• The base-emitter voltage of the TR, Q11 is designed to turn-on at below voltage.
= V × R12 / (R11 + R12) = 460mV
V
BE
REF BG
• When the chip temperature rises up to 175°C, then the turn-on voltage of the Q11 would drop down to 460mV.
(Hysteresis: 25°C)
Hence, the Q11 would turn on so the output circuit will be muted.
8
KA9258D
3. OP-AMP
OP-amp is integrated in the IC for user’s convenience.
AMP-I(+)
16 pin
+
14 pin
AMP-O
AMP -I(−)
15 pin
−
4. DRIVER
−∆I
Buffer
+
AMP
VREF
+
Level
shift
(2.5V)
−
−∆V
+∆V
−
Q1
Q3
Q2
Q4
3
10
M
19 25
1
2
10k
10k
11
17
27
12
18
26
Buffer
+∆I
4
9
24
20
+
100k
−
• The voltage, V
, is the reference voltage given by the bias voltage of the pin #23.
REF
• The input signal through the pin #3 is amplified by 10k/10k times 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 is fed into the driver buffer.
• Driver Buffer operates the power TR of the output stage according to the state of the input signal.
• The output stage is the BTL driver and the motor is rotating in forward direction by operating TR Q1 and TR Q4. On the
other hand, if TR Q2 and TR Q3 is operating, the motor is rotating in reverse direction
• When the input voltage through the pin #3 is below the V , then the direction of the motor in forward direction.
REF
• When the input voltage through the pin #3 is above the V
, then the direction of the motor in reverse direction.
REF
• If it is desired to change the gain, then the pin #4 or #24 can be used.
5. Connect a by-pass capacitor, 0.1µF between the supply voltage source.
V
CC1
22
V
CC2 21
104
6. Radiation fin is connecting to the internal GND of the package.
Connect the fin to the external GND.
9
KA9258D
Typical Performance Characteristics
V
CC vs. ICC
VCC vs. Imute
10
8
13.5
11.5
9.5
6
4
pin23=2.5
7.5
2
0
5.5
4
6
8
10
12
14
16
18
20
4
6
8
10
12
14
16
18
20
V
CC [V]
V
CC [V]
V
CC vs. Vreg
VCC vs. Isink
5.25
5.15
5.05
4.95
4.85
4.75
1300
1100
900
700
500
pin23=2.5
RL=4Ω
pin23=2.5
16 18
4
6
8
10
12
14
20
4
6
8
10
12
14
V
CC [V]
V
CC [V]
VCC vs. Vreg
VCC vs. Isink
1400
1200
1000
800
7
6
5
4
3
2
1
0
pin23=2.5
Vin=0.1Vrms
f=1kHz
600
400
pin23=2.5
RL=4Ω
RL=8Ω
4
6
8
10
12
14
4
6
8
10
12
14
16
18
20
V
CC [V]
VCC [V]
10
KA9258D
Typical Performance Characteristics (Continued)
Temp vs Icc
Temp vs Iccm
6
5
4
3
2
1
0
13.5
11.5
9.5
7.5
5.5
Vcc=13
Vpin23=2.5
pin23=2.5
75
-25
0
25
Temp [°C]
50
100
-25
0
25
50
Temp [°C]
75
100
Temp vs Vreg
Temp vs Isource
1500
1400
1300
1200
1100
1000
5.25
5.15
5.05
4.95
4.85
4.75
pin23=2.5
RL=4Ω
Vcc=13
-25
0
25
50
75
100
-25
0
25
50
75
100
Temp [°C]
Temp [°C]
Temp vs Isink
1300
1250
1200
1150
1100
1050
1000
Vcc=13V
Temp=vari
pin23=2.5
RL = 4Ω
-25
0
25
50
75
100
Temp [°C]
11
KA9258D
Test Circuits
50kΩ 50kΩ
OPI
+
470µF
1
0
2
1MΩ
PC-V
10µF
SW17
+
+
V
1000µF
3
2
10kΩ
SW16
1kΩ
SW14
SW15
10kΩ
1kΩ
0
0
1MΩ
Open
0
SW5
0
SW6
1
SW8
2
1
1
SW9
1
1
Short
2
2
2
OPIN(−)
15
16
14
13
12
11
10
9
OPOUT
4Ω
4Ω
4Ω
OPIN(+) GND2
V
V
DO2.2
DO3.1
17
SW7
8Ω
SW10
DO3.2
DO2.1
18
DR2
10µF
+
10µF
DI3.1
DI2.2
19
+
DI2.1
GND
20 DI3.2
DR3
21
VCC1 K
8
A
9
2
5
8
D
MUTE
1
SW4
V
CC
2
7
22 VCC2 MUTE
100µF
+
23 Vref
REO
6
5
2.5V
DR4
IL
DI4.1
24
25
26
27
28
VREF
KS8772
10µF
Pin 21, 22
4
3
2
1
DI4.2
DI1.2
DI1.1
+
DR1
+
DO4.1
10µF
SW13
8Ω
DO4.2 DO1.2
8Ω
SW3
GND3
DO1.1
4Ω
4Ω
V
1
2
1
2
4Ω
4Ω
SW11
SW12
0
0
1
2
SW2
SW1
0
12
KA9258D
Application Circuits
15 OPIN(−)
14
13
12
OPOUT
GND2
OPIN(+)
DO3.1
DO3.2
16
17
18
19
20
21
DO2.2
SPINDLE
MOTOR
SLED MOTOR
DO2.1 11
SPINDLE
10
DI3.1
DI3.2
DI2.2
SERVO
K
A
9
DI2.1
GND
9
8
SLED
MUTE
VCC1
OFF: HIGH
ON: LOW
2
BIAS
V
CC
5
5V
VCC2
7
6
5
4
3
2
1
22
23
24
25
26
27
28
MUTE
REO
8
REG.OUT
D
Vref
TRACKING
22 UF
VREF
DI1.2
DI4.1
DI4.2
AMP
104
V
CC
FOCUS
DI1.1
DO1.2
DO1.1
DO4.1
DO4.2
GND3
TRACKING
ACTUATOR
FOCUS
ACTUATOR
Thermal Shut Down Circuit
The IC breaks down by over heating when overload condition continues for a long time. KA9258D has built-in thermal shut
down circuit to prevent this case. When IC temperature rises over 175°C, the circuit operates and protects the IC from break-
down.
13
KA9258D
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：
KA9259BDTF
Disk Drive Motor Controller, 1A, BIPolar, PDSO28, 0.375 INCH, HEAT SINK, SSOP-28
FAIRCHILD
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