FAN8729_NL [FAIRCHILD]
Spindle+4-CH Motor Drive IC; 主轴+ 4 - CH电机驱动IC
| 型号： | FAN8729_NL |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Spindle+4-CH Motor Drive IC |
| 文件： | 总24页 (文件大小：486K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
www.fairchildsemi.com
FAN8729
Spindle+4-CH Motor Drive IC
Features
Description
• Built-in Power Save Circuit
The FAN8729 is a monolithic integrated circuit built-in
4Channel BTL motor and spindle motor drivers, which can
drive tracking actuator, focus actuator, sled motor, loading
motor, 3-phase BLDC motor, and it is applicable to DVD-P/
MDP/CAR-MD/CAR-NAVIGATION systems.
• Built-in Current Limit Circuit
• Built-in Thermal Shutdown Circuit (TSD)
• Built-in TSD Monitor Circuit
• Built-in FG Signal Output Circuit
• Built-in Rotational Direction Detecting Circuit
• Built-in Protection Circuit For Reverse Rotation
• Built-in 4-CH Balanced Transformerless (BTL) Driver
• Built-in BTL MUTE Circuit (CH123 and CH4)
• Corresponds to 3.3V DSP
48-QFPH-1414
Typical Application
Ordering Information
• Mini Disk Player
Device
Package
Operating Temperature
-35°C ~ +85°C
• Digital Video Disk Player
• Car Mini Disk Player
• Car navigation System
FAN8729
48-QFPH-1414
48-QFPH-1414
note
FAN8729_NL*
-35°C ~ +85°C
*Note:
NL: Lead free Type
Rev. 1.0.0
©2003Fairchild Semiconductor Corporation
FAN8729
Pin Assignments
48
47
46
44
42
40
39
38
37
45
43
41
NC
H1+
H1-
H2+
H2-
H3+
H3-
1
2
3
4
5
6
36
35
34
33
32
31
DO4-
DO4+
DO3-
DO3+
PGND2
FAN8729
30
29
28
27
26
25
FG
7
8
DO2-
DO2+
DO1-
DO1+
DIR
9
SVCC1
VM1
10
11
12
OPOUT
OPIN-
CS1
PGND1
22
19
20
23
24
13
14
18
21
15
16
17
2
FAN8729
Pin Definitions
Pin Number
Pin Name
H1+
I/O
I
I
I
I
I
I
O
O
-
-
I
-
O
O
O
-
-
O
I
I
I
I
-
I
I
O
O
O
O
O
-
Pin Function Description
1
2
3
4
5
6
7
8
Hall1(+) Input
Hall1(-) Input
Hall2(+) Input
Hall2(-) Input
Hall3(+) Input
Hall3(-) Input
FG Output
H1-
H2+
H2-
H3+
H3-
FG
DIR
SVCC1
VM1
CS1
PGND1
A3
A2
A1
SGND
NC
TSD_M
IN4
Direction
Signal VCC1
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
BLDC Motor Power Supply
Current Sensor
Power Ground1
3-Phase Output 3
3-Phase Output 2
3-Phase Output 1
Signal Ground
NC
TSD Monitor
CH4 Input
CH3 Input
CH2 Input
CH1 Input
IN3
IN2
IN1
VM2
OPIN+
OPIN-
OPOUT
DO1+
DO1-
DO2+
DO2-
PGND2
DO3+
DO3-
BTL CH1,2 Supply Voltage
Normal OP-AMP Input(+)
Normal OP-AMP Input(-)
Normal OP-AMP Output
BTL Drive 1 Output(+)
BTL Drive 1 Output(-)
BTL Drive 2 Output(+)
BTL Drive 2 Output(-)
BTL Power Ground2
BTL Drive 3 Output(+)
BTL Drive 3 Output(-)
O
O
3
FAN8729
Pin Definitions (Continued)
Pin Number
Pin Name
DO4+
DO4-
I/O
Pin Function Description
BTL Drive 4 Output(+)
BTL Drive 4 Output(-)
NC
BTL CH4 Reference
BTL CH4 Motor Supply
BTL CH3 Motor Supply
BTL Signal VCC
BTL CH1,2,3 Reference
BTL CH1,2,3 Mute
BTL CH4 Mute
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
O
O
-
I
-
-
-
I
I
I
I
O
I
I
NC
VREF4
VM4
VM3
SVCC2
VREF123
MUTE123
MUTE4
SS
Spindle Start/Stop
OUTS
INS-
INS+
OP-AMP Spindle Output
OP-AMP Spindle Input(-)
OP-AMP Spindle Input(+)
Phase Compesation Cap.
PC1
I
4
FAN8729
Internal Block Diagram
46
44
43
42
41
40
39
38
37
48
47
45
36
35
34
33
32
31
1
2
3
4
5
6
NC
H1+
H1-
DO4-
DO4+
DO3-
DO3+
PGND2
VM4
EC
ECR
23.5dB
H2+
H2-
H3+
H3-
5K
Absolute Values
Current
20K
20K
VM3
23.5dB
Sense Amp
5K
Output
Current Limit
Detection
FIN(GND)
FIN(GND)
Logic
VM2
VM2
17.5dB
17.5dB
Reverse
Rotation
7
8
30
29
28
27
26
25
DO2-
DO2+
DO1-
DO1+
OPOUT
OPIN-
FG
DIR
10K
10K
20K
20K
9
SVCC1
VM1
Distributor
10
11
12
CS1
PGND1
TSD_M
Driver
16
17
18
20
21
22
23
24
13
14
15
19
5
FAN8729
Equivalent Circuits
FG Signal Output
Phase Compensation Capacitor
7
25
0.5K
48
2K
Current Detector
Start/Stop
100K
11
5K
44
25
50K
30K
BTL Drive Mute
BTL Bias Voltage
37
41
42
43
25
50
25
50K
30K
6
FAN8729
Equivalent Circuits (Continued)
3-Phase Rotational Direction Output
BTL Drive Output
8
27 28
20K
25
29 30
32 33
34 35
30K
3-Phase Output
TSD_M
15K
13
18
14
15
BTL Input(CH1,2)
BTL Input(CH3,4)
21
22
19
20
10K
25
5K
25
OP-AMP Input
OP-AMP Output
SVCC
SVCC
2K
2K
26
24
25
1K
1K
2K
2K
7
FAN8729
Absolute Maximum Ratings (Ta=25°C)
Parameter
Symbol
Value
Unit
Supply Voltage (Spindle Signal)
Supply Voltage (BTL Signal)
Supply Voltage (Spindle Motor)
Supply Voltage (BTL Motor)
Power Dissipation
SV
7
V
CC1max
CC2max
M1max
M2,3,4max
Pd
SV
V
15
15
V
V
V
15
V
2.7note
-35 ~ +85
-55 ~ +150
1.3
W
°C
°C
A
Operating Temperature Range
Storge Temperature Range
Maximum Output Current (Spindle Part)
Maximum Output Current (BTL Part)
Topr
Tstg
I
I
OMAXS
OMAXB
1
A
Note:
1. When mounted on the PCB (phenolic resin material) of which size is 114mm × 76mm x1.6mm.
2. Power dissipation is reduced with the rate of -21.6mW/°C for TA≥25°C.
3. Do not exceed Pd and SOA.
Pd[mW]
3,000
2,000
1,000
SOA
0
50
75
100
125
150
175
0
25
Ambient Temperature, Ta[ C]
Recommended Operating Conditions (Ta=25°C)
Parameter
Symbol
SVCC1
SVCC2
Min.
4.5
4.5
4.5
4.5
Type.
Max.
5.5
13.2
13.2
SVCC2
Unit
Operating Supply Voltage (Spindle Signal)
Operating Supply Voltage (BTL Signal)
Operating Supply Voltage (Spindle Motor)
Operating Supply Voltage (BTL Motor)
-
-
-
-
V
V
V
V
V
M1
V
M2,3,4
8
FAN8729
Electrical Characteristics
(Unless otherwise specified, Ta=25°C, SV
VM3=8V, VM4=9V, RL2=15Ω)
=5V, V =8V, BTL driver part: SVcc2=9V, VM2=5V, RL1=8Ω,
M1
CC1
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Circuit Current 2
I
Start/Stop =5V
-
4.5
-
mA
CC2
START/STOP
SS On Voltage Range
SS Off Voltage Range
HALL AMP
V
L-H Circuit On
H-L Circuit Off
2.5
-
-
-
-
V
V
SSON
V
1.0
SSOFF
Hall Bias Current
I
-
-
-
-
1
-
-
5
4.0
-
uA
V
mVpp
HA
Common Mode Voltage Range
Minimum In Level
TORQUE CONTROL
EC Input Voltage Range
Offset Voltage (-)
V
1.5
60
HAR
V
INH
EC
0.5
-100
20
-
3.3
-20
100
-
V
E
E
E
E
=1.65V
=1.65V
EC=ECR=1.65V
-50
50
-1
mV
mV
uA
COFF-
COFF+
ECIN
CR
Offset Voltage (+)
Input Current
CR
-5
In/Output Gain
G
E
=1.65V, R =0.5Ω
CR CS
0.56
0.71
0.84
A / V
EC
FG
FG Output Voltage (L)
Input Voltage Range
OUTPUT BLOCK
Saturation Voltage (Upper TR)
Saturation Voltage (Lower TR)
Torque Limit Current
DIRECTION DETECTOR
DIR Output Voltage (L)
V
I
=10uA
-
-
-
0.5
4.0
V
V
FHL
FG
Hn+, Hn- Input D-range
V
1.5
FGR
V
V
I
I = -300mA
I =300mA
O
R
-
-
0.9
0.2
700
1.6
0.6
840
V
V
mA
OH
O
OL
TL
=0.5Ω
CS
560
V
I
=10uA
DIR
-
-
0.5
V
DIRL
9
FAN8729
Electrical Characteristics (continued)
(Unless otherwise specified, Ta=25°C, SV
VM3=8V, VM4=9V, RL2=15Ω)
=5V, V =8V, BTL driver part: SVcc2=9V, VM2=5V, RL1=8Ω,
M1
CC1
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
BTL DRIVE PART
Quiescent Circuit Current
CH MUTE123 Off Voltage
CH MUTE123 On Voltage
CH MUTE4 Off Voltage
CH MUTE4 On Voltage
I
-
-
2.5
-
2.5
-
16.5
-
-
mA
V
V
V
V
CC3
V
V
V
Pin42 = Variation
Pin42 = Variation
Pin43 = Variation
Pin43 = Variation
-
-
-
-
MOFF123
1.0
-
1.0
MON123
MOFF4
V
MON4
CH1,2 Actuator Driver (SVCC2=9V VM2=5V,RL1=8Ω)
Output Offset Voltage
Maximum Output Voltage1,2
Close Loop Voltage Gain
V
V
V
= 1.65V
= 1.65V
-50
3.6
15.5
-
-
+50
-
19.5
-
-
mV
V
dB
dB
V/us
OF1,2
IN
IN
V
4.0
17.5
60
OM1,2
G
RR1,2
SR1,2
f=1kHz, V = -0.1Vrms
IN
f=120Hz, V = -20dB
IN
f=120Hz, 2Vp-p
VC1,2
note
Ripple Rejection Ratio*
note
Slew Rate 1,2*
-
1.0
CH3 BTL Driver (SVCC2=9V, VM3=8V, RL2=15Ω)
Output Offset Voltage3
Maximum Output Voltage3
Close Loop Voltage Gain
V
V
V
= 1.65V
= 1.65V
-100
6.5
21.5
-
-
+100
-
25.5
-
-
mV
V
dB
dB
V/us
OF3
IN
IN
V
7.0
23.5
60
OM3
G
RR3
SR3
f= 1kHz, V = -0.1Vrms
IN
f= 120Hz, V = -20dB
IN
f= 120Hz, 2Vp-p
VC3
note
Ripple Rejection Ratio3*
note
Slew Rate 3*
-
1.0
CH4 BTL Driver (SVCC2=9V, VM4=9V, RL2=15Ω)
Output Offset Voltage4
Maximum Output Voltage4
Close Loop Voltage Gain
V
V
V
= 1.65V
= 1.65V
-100
7.0
21.5
-
-
+100
-
25.5
-
-
mV
V
dB
dB
V/us
OF4
IN
IN
V
7.5
23.5
60
OM4
G
RR4
SR4
f= 1kHz, V = -0.1Vrms
IN
f= 120Hz, V = -20dB
IN
f= 120Hz, 2Vp-p
VC4
note
Ripple Rejection Ratio4*
note
Slew Rate 4*
-
1.0
OP- AMP
Input Offset Voltage
Input Bias Current
High Level Output Voltage
Low Level Output Voltage
Output Sink Current
Output Source Current
V
-
-
-
-
-
-
-20
-
-
-
+20
300
-
mV
nA
V
OF
I
-
8
-
-
-
-
-
-
B1
V
OHOP
V
I
-
0.1
V
OLOP
5.5
4.5
75
65
1
-
-
-
-
-
mA
mA
dB
dB
V/us
SINK
I
SOURCE
note
Open Loop Voltage Gain*
G
f= 1kHz, V = -75dB
IN
f= 120Hz, V = -20dB
IN
f= 120Hz, 2Vp-p
VOOP
note
Ripple Rejection Ratio*
RR
SR
OP
OP
note
Slew Rate*
Common Mode Rejection
CMRR
f= 1kHz, V = -20dB
IN
-
80
-
dB
OP
note
Ratio*
Note: Guaranteed field.(No EDS/Final test)
10
FAN8729
Application Information
1. MUTE Function
• MUTE circuit turns BTL output ON/OFF.
• When MUTE terminal (pin42, pin43) is OPEN, or terminal voltage is
lower than 1V, BTL is disable.
42
43
• When MUTE terminal (pin42, pin43) is voltage is higher than 1.5V,
BTL output operates normally.
• Feature Table.
MUTE circuit voltage
Above 1.5V
MUTE status
OFF
Below 1V or Open
ON
2. TSD Function
SVCC
• TSD circuit intercepts all IC output to protect the IC against high
IREF
Output driver
Bias
temperatures.
• When chip temperature rises above 165°C, BTL and spindle output is
R1
R2
disable.
Q0
• When chip temperature falls below 140°C, BTL and spindle output
operates normally.
Hysteresis
• TSD has hysteresis of 25°C.
Ihys
R3
3. TSD Monitor Function
VCC
SVCC
• TSD monitor circuit displays TSD status.
• When TSD is ON, pin18 is HIGH.
• When TSD is OFF, pin18 is LOW.
• Since output pin(PIN18) is open-collector, pull-up resistance should be
attached outside.
R(external)
TSD
18
20k
Q6
• Feature Table.
TSD
TSD On
TSD Off
Pin18
High
Low
Q5
11
FAN8729
4. CH1,2,3,4 Balanced Transformerless (BTL) Drive
R3
R3
Pref
DO+
34 32
29 27
R2
Vin
R1
19 20
21 22
LEVEL
SHIFT
M
37 41
Vref123,4
35 33
30 28
DO-
Pref
R3
R3
• Diagram above shows each input/output BTL channel structure.
• When BTL input voltage is Vref, the output voltage is Pref. Pref has the value of VM/2.
• BTL Channel’s output voltage is found as follows;
R2
R1
R2
R1
R3
Do+ = Pr ef +
Do− = Pr ef −
×(1+ )×(Vin −Vref )
R3
R3
×(1+ )×(Vin −Vref )
R3
• BTL gain value is found as follows;
R2
R1
Gain = 4×
12
FAN8729
5. Spindle
VM1
Rcs
VM1
VRCS
Io
VAMP
-
Gain
Controller
ECR
Driver
+
+
M
-
TSD
Torque sense amp
Current sense amp
Power Driver
EC
• The spindle driver circuit consists of 3 section: Torque sense amp, Current sense amp, and Power driver.
• Torque sense amp compares and amplifies EC and ECR signals from SERVO, and sends them to current sense amp. With
voltage comparison, it determines the signal as forward or reverse.
• Current sense amp limits the current in Motor(Io) by comparing output current signal from torque sense amp with the
current of RCS.
• Power driver output the current to the motor based on the current generated form current sense amp.
• Feature Table
VRNF[V]
Reverse
Forward
Ecoff-
Ecoff+
Rotation
EC < ECR
EC > ECR
Forward rotation
3mV
Stop after detecting
reverse rotation
-50
0
+50
ECR-EC[mV]
13
FAN8729
6. Calculation of Gain & Torque Current
VM1
-
Output
Current sense
Io
Rcs
Vs
+
VM1
CS1(Pin11)
Current / Voltage
Convertor
Negative
-
Feedback loop
Vin
+
R1
Io
U
V
-
ER
-
+
Power
Transistors
Gm
+ Driver
+
W
ECR
Absolute
Values
+
-
Commutation
Distributor
Vmax
VM1
H1 H2 H3
Max. output
current limiting
• Toque limit circuit limits the current of spindle motor.
• Driver amp circuit limits the current of spindle motor by comparing the voltage detected from RCS and the voltage output
from torque sense map.
• Output current of the motor can be limited by adjusting the RCS value.
• Maximum output current of motor is found as follows;
V max 350mV
Io[mA] =
=
Rcs
Rcs
• VMAX within IC is fixed at 350mV.
• Gm of torque sense amp is set to 0.71.
14
FAN8729
7. Rotational Direction Detecting Function
• Rotation detection circuit gives the result to DIR pin by
detecting the MD’s rotational direction.
• Detects the MD’s rotational direction using hall signals H2 and
H3.
+
-
H2+
H2-
8
DIR
R
• Feature Table.
Q
D
Rotation
Forward
Reverse
DIR
Low
High
EC < ECR
EC > ECR
CK
+
-
H3+
H3-
D-F/F
• In case of forward rotational detection, the phase of hall signal shows as H3→ H2→ H1 as follows;
H1
H2
H3
(b)
• In case of reverse rotational detection, the phase of hall signal shows as H1→ H2→ H3 as follows;
H1
H2
H3
(a)
• Forward/Reverse rotational direction is decided as follows. When hall signal H3 is falling edge, if H2 shows "High", the
rotational direction is "Forward", and if H2 shows "Low", rotational direction is "Reverse".
15
FAN8729
8 Reverse Rotation Preventing Function
Current
Sense
Amp
+
ECR
-
EC
H2+
H2-
+
-
R
Q
D
CK
+
-
H3+
H3-
Gain
controller
Driver
M
D-F/F
• Reverse rotation prevention circuit has a function for intercepting the reverse rotation of MD.
• When SERVO control input is EC<ECR, MD rotates forward and Q which is the output of D-F/F goes "High".
• When SERVO control input is EC>ECR, motor puts on reverse brake and MD speed is rapidly reduced.
• When SERVO control input remains EC>ECR, MD rotates reverse and Q which is the output of D-F/F goes "Low", in
result current sense amp is interrupted. Accordingly gain controller goes OFF and motor is stopped.
• Feature Table.
Reverse Rotation Preventer
Rotation
H2
H3
D-F/F
DIR
E <E
CR
E >E
C CR
C
Forward
Reverse
H
L
H → L
H → L
H
L
L
H
Forward
–
Brake and Stop
Stop
16
FAN8729
8. FG Output Function
• FG circuit outputs the number of motor rotation.
• One pulse per rotation is output of FG.
• FG uses hall signal H1 as its input, and creates output using hysteresis
comparator.
7
FG Output
+
-
H1+
H1-
• Input/Output wavelength is shown below;
H1
FG
17
FAN8729
9. Hall Input Output Timing Chart
• Output voltage and current wavelength of each of the 3-phase hall input is shown below.
• The following diagram is the motor’s output wavelength in the forward rotation direction.
H1+
H2+
H3+
A1 output current
A1 output voltage
A2 output current
A2 output voltage
A3 output current
A3 output voltage
18
FAN8729
Typical Performance Characteristics
SVCC2 vs ICC3
SVCC1 vs ICC2
15.0
14.0
13.0
12.0
11.0
10.0
6.00
5.50
5.00
4.50
4.00
3.50
3.00
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
SVCC2(V)
SVCC1(V)
V IN1 vs V OUT1 (V REF=1.65V , V M2=5V )
V IN2 vs V OUT2 (V REF=1.65V , V M2=5V )
6.0
6.0
4.0
2.0
0.0
4.0
2.0
0.0
-2.0
-4.0
-6.0
-2.0
-4.0
-6.0
0.0
1.0
2.0
V IN1(V )
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V IN2(V )
V IN3 vs V OUT3 (V REF=1.65V , V M3=12V )
V IN4 vs V OUT4 (V REF=1.65V , V M4=12V )
12.0
8.0
12.0
8.0
4.0
4.0
0.0
0.0
-4.0
-8.0
-12.0
-4.0
-8.0
-12.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V IN3(V )
V IN4(V )
19
FAN8729
Typical Performance Characteristics
SVCC2 vs GVC1
SVCC2 vs GVC2
19.5
19.0
18.5
18.0
17.5
17.0
16.5
16.0
15.5
19.5
19.0
18.5
18.0
17.5
17.0
16.5
16.0
15.5
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
SVCC2(V)
SVCC(V)
SVCC2 vs GVC3
SVCC2 vs GVC4
25.5
25.0
24.5
24.0
23.5
23.0
22.5
22.0
21.5
25.5
25.0
24.5
24.0
23.5
23.0
22.5
22.0
21.5
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
SVCC2(V)
4.5 5.5 6.5 7.5 8.5 9.5 10.5 11.5 12.5 13.5
SVCC2(V)
INS+ vs ITL (V REF=1.65V )
800
600
400
200
0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
INS+(V )
20
FAN8729
Test Circuits
Hall Signal
Generation
V
48
47
46
45
44
43
42
41
40
39
38
37
A
A
A
A
A
A
36
35
1
2
3
4
5
6
NC
DO4-
H1+
H1-
2
1
RL1
RL1
RL2
RL2
V
V
H2+
H2-
H3+
H3-
DO4+ 34
2
1
33
DO3-
32
31
DO3+
PGND2
FAN8729
V
2
1
7
8
FG
DO2- 30
DO2+
10uA
V
V
RL1
RL1
RL2
RL2
29
DIR
V
2
1
A
9
SVCC1
VM1
DO1- 28
SVCC1
10
11
12
DO1+
27
CS1
PGND1
OPOUT 26
OPIN-
VM1
V
25
14
15
16
18
19
20
21
22
23
24
17
13
V
V
V
V
c
a
c
a
c
a
b
b
b
RL
RL
RL
OPIN+
OPIN-
OPOUT
VCC
V
V
50
1M
V
V
21
FAN8729
Typical Application Circuits
0.1uF
48
47
46
43
42
41
40
39
38
37
44
45
1
2
3
4
36
35
34
33
32
NC
H1+
HALL1
HALL2
HALL3
DO4-
H1-
Loadng
M
M
D04+
H2+
H2-
H3+
H3-
DO3-
Sled
Motor
DO3+
5
6
PGND2 31
FAN8729
FG
Signal
DO2-
DO2+
FG
30
29
28
27
26
25
7
8
Rotate
Direction
Focus
DIR
DO1-
9
SVCC1
VM1
Tracking
DO1+
10
11
12
VM1
CS1
OPOUT
OPIN-
PGND1
14
18
19
20
24
13
15
16
17
21
22
23
Servo Amp
Notes:
Radiation pin is connected to the internal GND of the package.
22
FAN8729
Package Dimensions
48-QFPH-1414
17.20 0.30
14.00 0.20
#48
#1
(0.825)
+0.10
0.30 -0.05
0.10MAX
0.65
0.10MAX
0.80 0.20
23
FAN8729
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
CORPORATION. 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
11/4/03 0.0m 001
Stock#DSxxxxxxxx
2003 Fairchild Semiconductor Corporation
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