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FSQ0365RN
Green Mode Fairchild Power Switch (FPSTM) for QuasiResonant Operation - Low EMI and High Efficiency
Features
Applications
ƒ Optimized for Quasi-Resonant Converter (QRC)
ƒ Low EMI through Variable Frequency Control
ƒ Power Supply for DVP player
ƒ Auxiliary Power Supply for PC, LCD TV and PDP TV
and
Inherent Frequency Modulation
Description
ƒ High Efficiency through Minimum Voltage Switching
ƒ Narrow frequency variation range over Wide Load and
In general, a Quasi-Resonant Converter (QRC) shows
lower EMI and higher power conversion efficiency
compared to a conventional hard-switched converter
with a fixed switching frequency. The FSQ0365RN is an
integrated Pulse Width Modulation (PWM) controller and
Sense FET specifically designed for quasi-resonant
operation with minimal external components. The PWM
controller includes an integrated fixed frequency
oscillator, under voltage lockout, leading edge blanking
(LEB), optimized gate driver, internal soft start,
temperature-compensated precise current sources for a
loop compensation and self protection circuitry.
Compared with discrete MOSFET and PWM controller
solution, the FSQ0365RN can reduce total cost,
component count, size and weight, while simultaneously
increasing efficiency, productivity, and system reliability.
This device provides a basic platform that is well suited
for cost-effective designs of quasi-resonant switching
flyback converters.
Input Voltage Variation
ƒ Advanced
Burst-Mode Operation for Low Standby
Power Consumption
ƒ Pulse-by-Pulse Current Limit
ƒ Various Protection functions:
Over Load Protection
(OLP), Over Voltage Protection (OVP), Abnormal
Over Current Protection (AOCP), Internal Thermal
Shutdown (TSD)
ƒ Under Voltage Lock Out (UVLO) with Hysteresis
ƒ Internal startup circuit
ƒ Internal High Voltage Sense FET (650V)
ƒ Built-in Soft Start (15ms)
FSQ-series Product Lineup
Maximum Output Power(4)
Part
Number
Package
current
limit
Rdson
(max)
230Vac±15%(3)
Adapter(1)
85-265Vac
Open
Open
Adapter(1)
frame(2)
Frame(2)
FSQ321
8-Dip
0.7 A
19 Ω
12W
18W
7W
11W
FSQ0165RN
FSQ0265RN
8-Dip
8-Dip
0.9 A
1.2 A
10 Ω
6Ω
15W
20W
21W
26W
9W
11W
13W
16W
FSQ0365RN
8-Dip
1.5 A
4.5 Ω
24W
30W
13W
19W
Corresponding
Old Devices
FSDL321
FSDH321
FSDL0165RN
FSDM0265RN
FSDM0265RNB
FSDM0365RN
FSDM0365RNB
Notes:
1. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient.
2. Maximum practical continuous power in an open frame design at 50°C ambient.
3. 230 VAC or 100/115 VAC with doubler.
4. The junction temperature can limit the maximum output power.
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
www.fairchildsemi.com
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
July 2006
PRELIMINARY DATASHEET
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Application Diagram and Block Diagram
Vo
AC
IN
Vstr
Drain
PWM
Sync
GND
VFB
Vcc
Figure 1. Typical Application Circuit
Vstr
Sync
4
Vcc
2
5
6
7
Drain
8
+
OSC
0.7V/0.2V
+
+
0.35/0.55V
VBurst
Vcc
Idelay
FB
3
Vref
Vcc good
-
-
8V/12V
Vref
PWM
IFB
3R
R
Soft
Start
S
Q
R
Q
Gate
driver
LEB
360ns
LPF
RC=80ns
AOCP
1
TSD
6V
VSD
Sync
Vovp
2.5us time
delay
S
Q
R
Q
Vocp
(1.1V)
GND
6V
Vcc good
Figure 2. Internal Block Diagram
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
www.fairchildsemi.com
2
PRELIMINARY DATASHEET
GND
VCC
D
D
8-DIP
VFB
D
Sync
Vstr
Figure 3. Package diagram
Pin Definitions
Pin Number
Pin Name
1
GND
This pin is the control ground and the SenseFET source.
2
Vcc
This pin is the positive supply input. This pin provides internal operating current for
both start-up and steady-state operation.
3
VFB
This pin is internally connected to the inverting input of the PWM comparator. The
collector of an opto-coupler is typically tied to this pin. For stable operation, a
capacitor should be placed between this pin and GND. If the voltage of this pin
reaches 6V, the over load protection triggers, which results in the FPS shutting
down.
4
Sync
This pin is internally connected to the sync detect comparator for quasi-resonant
switching. In normal quasi-resonant operation, the threshold of the sync
comparator is 0.7V/0.2V.
5
Vstr
This pin is connected directly or through a resistor to the high voltage DC link. At
startup, the internal high voltage current source supplies internal bias and charges
the external capacitor that is connected to the Vcc pin. Once Vcc reaches 12V, the
internal current source is disabled.
6
D
High voltage power SenseFET drain connection.
7
D
High voltage power SenseFET drain connection.
8
D
High voltage power SenseFET drain connection.
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
Pin Function Description
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Pin Assignments
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3
PRELIMINARY DATASHEET
The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The
device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables
are not guaranteed at the absolute maximum ratings.
Symbol
VSTR
VDS
VCC
VFB
VSync
IDM
ID
ID
Min.
Vstr Pin Voltage
Drain Pin Voltage
Supply Voltage
Feedback Voltage Range
Sync Pin Voltage
(1)
Drain Current Pulsed
Max.
Unit
20
9
9
V
V
V
V
V
A
A
650
650
-0.3
-0.3
Continuous Drain Current (Tc=25°C)
A
EAS
PD
TJ
Continuous Drain Current (Tc=100°C)
(2)
Single Pulsed Avalanche Energy
Total Power Dissipation
Operating Junction Temperature
150
°C
TA
Operating Ambient Temperature
-25
+85
°C
Storage Temperature
-55
+150
°C
TSTG
Notes:
1.
2.
Parameter
mJ
W
Repetitive rating: Pulse width limited by maximum junction temperature
L=24mH, starting TJ=25°C.
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Absolute Maximum Ratings
www.fairchildsemi.com
4
PRELIMINARY DATASHEET
Parameter
Symbol
Test Condition & Comment
Min.
Typ.
Max.
Unit
650
-
-
V
VDS = 560V
-
-
100
µA
TJ = 25°C, ID = 25mA
-
3.6
4.5
Ω
TJ= 100°C, ID = 25mA
-
SenseFET SECTION
Drain-Source Breakdown
Voltage
Zero-Gate-Voltage Drain
Current
Drain-Source On-State
Resistance
BVDSS
IDSS
RDS(ON)
VCC = 0V, ID = 100µA
Input Capacitance
CISS
315
pF
Output Capacitance
COSS
47
pF
Reverse Transfer
Capacitance
CRSS
9
pF
Turn-on Delay Time
td(on)
11.2
ns
Rise Time
Turn-off Delay Time
Fall Time
Total Gate Charge
(Gate-Source + Gate-Drain)
Gate-Source Charge
Gate-Drain (Miller) Charge
tr
-
VDS = 350V, ID = 25mA
-
28.2
td(off)
tf
34
-
VDS = 350V, lD = 25mA
32
ns
ns
-
ns
Qg
nC
Qgs
Qgd
nC
nC
CONTROL SECTION
Maximum ON time
TON.MAX
TJ = 25°C
Blanking time
TB
Detection time window
TW
TJ = 25°C, Vsync=0V
Switching Frequency
Variation
Feedback Source Current
Minimum Duty Cycle
∆fS
- 25°C < TJ < 85°C
UVLO Threshold Voltage
Internal Soft Start Time
IFB
DMIN
VSTART
VFB = 0V
VFB = 0V
VSTOP
After Turn-on
tS/S
10.5
12
13.5
us
13.5
15
16.5
us
2.7
3
3.3
us
-
±5
±10
%
700
11
900
12
1100
0
13
µA
%
V
7
8
9
V
15
With free-running frequency
ms
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Electrical Characteristics
BURST MODE SECTION
Burst Mode Voltage
VBURH
VBURL
Hysteresis
0.45
0.25
-
0.55
0.35
200
0.65
0.45
-
TJ = 25°C, di/dt = 300mA/us,
1.32
1.5
1.68
VCC = 15V
5.5
6.0
6.5
V
VFB = 5V
4
5.5
2.0
5
360
6.0
2.5
6
6.5
3.0
µA
ns
V
(1)
TJ = 25°C, tPD = 200ns
V
V
mV
PROTECTION SECTION
Peak Current Limit
Shutdown Feedback Voltage
VSD
Shutdown Delay Current
Leading Edge Blanking Time
Over Voltage Protection
Over Voltage Protection
Blanking Time
IDELAY
tLEB
VOVP
tOVP
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
VCC = 15V, VFB = 2V
A
µs
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5
PRELIMINARY DATASHEET
VOCP
TOVP
0.95
2.0
1.1
2.5
1.25
3.0
µs
TSD
125
140
155
°C
VSH
VSL
tSync
0.55
0.14
270
0.7
0.2
200
0.85
0.26
230
V
V
ns
1
3
5
mA
300
400
500
mA
0.7
35
0.85
-
1.0
650
mA
V
V
Sync SECTION
Sync Threshold Voltage
Sync Delay Time
TOTAL DEVICE SECTION
Operating Supply Current
(Control Part Only)
Start Current
ISTART
Start-up Charging Current
Vstr Supply Voltage
ICH
VSTR
IOP
VCC = 5.8V
Vcc=10V (before Vcc reaches
Vstart)
VCC = 0V, Vstr = min 40V
Notes:
1. Propagation delay in the control IC
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Over Current Latch Voltage
Over voltage protection
Blanking Time
Thermal Shutdown
Temperature
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6
PRELIMINARY DATASHEET
1. Startup : At startup, an internal high voltage current
source supplies the internal bias and charges the
external capacitor (Ca) that is connected to the VCC pin
as illustrated in Figure 4. When VCC reaches 12V, the
FPS begins switching and the internal high voltage
current source is disabled. Then, the FPS continues its
normal switching operation and the power is supplied
from the auxiliary transformer winding unless VCC goes
below the stop voltage of 8V.
VDC
2.2 Leading edge blanking (LEB): At the instant the
internal Sense FET is turned on, there usually exists a
high current spike through the Sense FET, caused by
primary-side capacitance and secondary-side rectifier
reverse recovery. Excessive voltage across the Rsense
resistor would lead to incorrect feedback operation in the
current mode PWM control. To counter this effect, the
FPS employs a leading edge blanking (LEB) circuit. This
circuit inhibits the PWM comparator for a short time
(TLEB) after the Sense FET is turned on.
Vcc
Vref
Idelay
IFB
Vfb
Vo
4
H11A817A
Ca
D2
2.5R
+
Vfb*
KA431
Vcc
3
6
Gate
driver
R
-
OLP
VSD
Vstr
ICH
SenseFET
OSC
D1
CB
Rsense
Figure 5. Pulse width modulation (PWM) circuit
Vref
8V/12V
Vcc good
Internal
Bias
Figure 4. Startup Block
2. Feedback Control: FPS employs current mode
control, as shown in Figure 5. An opto-coupler (such as
the H11A817A) and shunt regulator (such as the
KA431) are typically used to implement the feedback
network. Comparing the feedback voltage with the
voltage across the Rsense resistor makes it possible to
control the switching duty cycle. When the reference pin
voltage of the KA431 exceeds the internal reference
voltage of 2.5V, the H11A817A LED current increases,
thus pulling down the feedback voltage and reducing the
duty cycle. This event typically happens when the input
voltage is increased or the output load is decreased.
2.1 Pulse-by-pulse current limit: Because current
mode control is employed, the peak current through the
Sense FET is limited by the inverting input of PWM
comparator (Vfb*) as shown in Figure 5. Assuming that
the 0.9mA current source flows only through the internal
resistor (2.5R +R= 2.8 kΩ ), the cathode voltage of
diode D2 is about 2.5V. Since D1 is blocked when the
feedback voltage (Vfb) exceeds 2.5V, the maximum
voltage of the cathode of D2 is clamped at this voltage,
thus clamping Vfb*. Therefore, the peak value of the
current through the Sense FET is limited.
3. Synchronization: The FSQ-Series employs a quasiresonant switching technique to minimize the switching
noise and loss. The basic waveforms of the quasiresonant converter are shown in Figure 6. In order to
minimize the MOSFET's switching loss, the MOSFET
should be turned on when the drain voltage reaches its
minimum value as shown in Figure 6. The minimum
drain voltage is indirectly detected by monitoring the VCC
winding voltage as shown in Figure 6.
Vds
VRO
VRO
VDC
TF
Vsync
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Functional Description
Vovp (6V)
0.7V
0.2V
200ns Delay
MOSFET Gate
ON
ON
Figure 6. Quasi-resonant switching waveforms
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
www.fairchildsemi.com
7
PRELIMINARY DATASHEET
If Vfb exceeds 2.8V, D1 is blocked and the 5uA current
source starts to charge CB slowly up to VCC. In this
condition, Vfb continues increasing until it reaches 6V,
when the switching operation is terminated as shown in
Figure 8. The delay time for shutdown is the time
required to charge CB from 2.8V to 6V with 5uA. In
general, a 20 ~ 50 ms delay time is typical for most
applications.
VFB
Over load protection
6V
Because these protection circuits are fully integrated
into the IC without external components, the reliability
can be improved without increasing cost.
Vds
Fault
occurs
Power
on
2.8V
Fault
removed
T12= CB*(6.0-2.8)/Idelay
T1
T2
t
Figure 8. Over load protection
Vcc
t
Normal
operation
Fault
situation
Normal
operation
Figure 7. Auto restart protection waveforms
4.1 Over Load Protection (OLP): Overload is defined
as the load current exceeding its normal level due to an
unexpected abnormal event. In this situation, the
protection circuit should trigger in order to protect the
SMPS. However, even when the SMPS is in the normal
operation, the over load protection circuit can be
triggered during the load transition. In order to avoid this
undesired operation, the over load protection circuit is
designed to trigger after a specified time to determine
whether it is a transient situation or an overload
situation. Because of the pulse-by-pulse current limit
capability, the maximum peak current through the Sense
FET is limited, and therefore the maximum input power
is restricted with a given input voltage. If the output
consumes more than this maximum power, the output
voltage (Vo) decreases below the set voltage. This
reduces the current through the opto-coupler LED,
which also reduces the opto-coupler transistor current,
thus increasing the feedback voltage (Vfb).
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
.
2.5R
OSC
PWM
R
S
Q
R
Q
Gate
driver
LEB
Rsense
2
AOCP
-
8V
4.2 Abnormal Over Current Protection (AOCP): When
the secondary rectifier diodes or the transformer pins
are shorted, a steep current with extremely high di/dt
can flow through the Sense FET during the LEB time.
Even though the FSQ-Series has OLP (Over Load
Protection), it is not enough to protect the FSQ-Series in
that abnormal case, since severe current stress will be
imposed on the Sense FET until OLP triggers. The
FSQ-Series has an internal AOCP (Abnormal Over
Current Protection) circuit as shown in Figure 9. When
the gate turn-on signal is applied to the power Sense
FET, the AOCP block is enabled and monitors the
current through the sensing resistor. The voltage across
the resistor is then compared with a preset AOCP level.
If the sensing resistor voltage is greater than the AOCP
level, the set signal is applied to the latch, resulting in
the shutdown of SMPS.
+
12V
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
4. Protection Circuits: The FSQ-Series has several
self-protective functions such as over load protection
(OLP), abnormal over current protection (AOCP), over
voltage protection (OVP) and thermal shutdown (TSD).
All the protections are implemented as auto-restart
mode. Once the fault condition is detected, switching is
terminated and the Sense FET remains off. This causes
VCC to fall. When VCC falls down to the under voltage
lockout (UVLO) stop voltage of 8V, the protection is
reset and startup circuit charges VCC capacitor. When
VCC reaches the start voltage of 12V, the FSQ-Series
resumes its normal operation. If the fault condition is not
removed, the Sense FET remains off and VCC drops to
stop voltage again. In this manner, the auto-restart can
alternately enable and disable the switching of the
power Sense FET until the fault condition is eliminated.
Vaocp
GND
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8
4.3 Over Voltage Protection (OVP): If the secondary
side feedback circuit malfunctions or a solder defect
causes an open in the feedback path, the current
through the opto-coupler transistor becomes almost
zero. Then, Vfb climbs up in a similar manner to the
over load situation, forcing the preset maximum current
to be supplied to the SMPS until the over load protection
triggers. Because more energy than required is provided
to the output, the output voltage may exceed the rated
voltage before the over load protection triggers, resulting
in the breakdown of the devices in the secondary side.
In order to prevent this situation, an over voltage
protection (OVP) circuit is employed. In general, the
peak voltage of the sync signal is proportional to the
output voltage and the FSQ-Series uses a sync signal
instead of directly monitoring the output voltage. If the
sync signal exceeds 6V, an OVP is triggered resulting in
a shutdown of SMPS. In order to avoid undesired
triggering of OVP during normal operation, the peak
voltage of the sync signal should be designed to be
below 6V.
Vo
Vose
t
V FB
0.55V
0.35V
Ids
Vds
time
4.4 Thermal Shutdown (TSD): The Sense FET and the
control IC are built in one package. This makes it easy
for the control IC to detect the abnormal over
temperature of the Sense FET. When the temperature
exceeds approximately 150°C, the thermal shutdown
triggers.
5. Soft Start : The FPS has an internal soft start circuit
that increases PWM comparator inverting input voltage
together with the Sense FET current slowly after it starts
up. The typical soft start time is 15msec, The pulse
width to the power switching device is progressively
increased to establish the correct working conditions for
transformers, inductors, and capacitors. The voltage on
the output capacitors is progressively increased with the
intention of smoothly establishing the required output
voltage. It also helps to prevent transformer saturation
and reduce the stress on the secondary diode during
startup.
6. Burst operation: In order to minimize power
dissipation in standby mode, the FPS enters burst mode
operation. As the load decreases, the feedback voltage
decreases. As shown in Figure 10, the device
automatically enters burst mode when the feedback
voltage drops below VBURL (350mV). At this point
switching stops and the output voltages start to drop at a
rate dependent on standby current load. This causes the
feedback voltage to rise. Once it passes VBURH (550mV)
switching resumes. The feedback voltage then falls and
the process repeats. Burst mode operation alternately
enables and disables switching of the power Sense FET
thereby reducing switching loss in standby mode.
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
T
1
Switching
disabled
T
2
T
3
Switching
disabled
T
4
Figure 10. Burst mode operation
7. Switching Frequency Limit: To minimize switching
loss and EMI (Electromagnetic Interference), MOSFET
turns on when the drain voltage reaches its minimum
value in Quasi-resonant operation. However, this causes
switching frequency to increases at light load conditions.
As the load decreases, the peak drain current
diminishes and, therefore, the switching frequency
increases. This results in severe switching losses at
light load condition, as well as intermittent switching and
audible noise. Because of these problems, the quasiresonant converter topology has limitations in a wide
range of applications.
In order to overcome this problem, FSQ-series employs
frequency limit function as shown in Figure 11 and 12.
Once Sense FET is turned on, the next turn-on is
prohibited during the blanking time (TBLK). After the
blanking time, the controller finds the valley within
detection time window (TDW ) and turns on the MOSFET
as shown in Figure 11 and 12 (Case A, B, and C). If no
valley is found during TDW , the internal Sense FET is
forced to turn on at the end of tDW (Case D). Therefore,
FSQ0365RN has its minimum switching frequency
55kHz and maximum switching frequency 67kHz as
shown in Figure 12.
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
PRELIMINARY DATASHEET
Figure 9. Abnormal over current protection
www.fairchildsemi.com
9
Tsmax =18us
When the resonant period is 2us
I ds
Ids
67kHz
A
A
B
C
Constant
frequency
59kHz
55kHz
TB =15us
D
Ts
Ids
Burst
mode
Ids
B
TB =15us
Ts
Po
Figure 12. Switching Frequency Range
Ids
Ids
C
TB =15us
Ts
Ids
Ids
TB =15us
D
TW=3us
Tsmax =18us
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
PRELIMINARY DATASHEET
Figure 11. QRC Operation with Limited Frequency
www.fairchildsemi.com
10
PRELIMINARY DATASHEET
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Typical Performance Characteristics
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
www.fairchildsemi.com
11
PRELIMINARY DATASHEET
Part Number
Package
Pb-Free
Operating
Temperature
Range
FSQ321
FSQ0165RN
FSQ0265RN
FSQ0365RN
8-Dip
8-Dip
8-Dip
8-Dip
Yes
Yes
Yes
Yes
-25 to +85
-25 to +85
-25 to +85
-25 to +85
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
Packing Method
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Ordering Information
www.fairchildsemi.com
12
PRELIMINARY DATASHEET
FSQ0365RN Green Mode Fairchild Power Switch (FPSTM) for Quasi-Resonant Operation
Physical Dimensions
8-DIP
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1.
www.fairchildsemi.com
13
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FASTr™
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®
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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 FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1.
2.
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.
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.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or In Design
This datasheet contains the design specifications for product
development. Specifications may change in any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data; supplementary data will be
published at a later date. Fairchild Semiconductor reserves the right to
make changes at any time without notice to improve design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild Semiconductor
reserves the right to make changes at any time without notice to improve
design.
Obsolete
Not In Production
This datasheet contains specifications on a product that has been
discontinued by Fairchild Semiconductor. The datasheet is printed for
reference information only.
Rev. I20
© 2006 Fairchild Semiconductor Corporation
FSQ0365RN Rev. 0.0.1
1
www.fairchildsemi.com
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