FSDM07652RWDTU Download

partno	mfr	description	Magnitude	download
FSDM07652RWDTU	FAIRCHILD	Fairchild Semiconductor [Green Mode Fairchild Power Switch (FPS)]	263k

www.fairchildsemi.com FSDM07652R Features Green Mode Fairchild Power Switch (FPSTM) ? Internal Avalanche Rugged Sense FET ? Advanced Burst-Mode operation consumes under 1 W at 240VAC & 0.5W load ? Precision Fixed Operating Frequency (66kHz) ? Internal Start-up Circuit ? Pulse by Pulse Current Limiting ? Abnormal Over Current Protection (AOCP) ? Over Voltage Protection (OVP) ? Over Load Protection (OLP) ? Internal Thermal Shutdown Function (TSD) ? Auto-Restart Mode ? Under Voltage Lock Out (UVLO) with hysteresis ? Low Operating Current (2.5mA) ? Built-in Soft Start OUTPUT POWER TABLE 230VAC ?15%(3) PRODUCT FSDM0565R FSDM07652R Adapter(1) 60W 70W Open Frame(2) 70W 80W 85-265VAC Adapter(1) 50W 60W Open Frame(2) 60W 70W Table 1. 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. Application ? SMPS for LCD monitor and STB ? Adaptor Typical Circuit Description The FSDM07652R is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combine an avalanche rugged Sense FET with a current mode PWM control block. The PWM controller includes 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, it can reduce total cost, component count, size and weight simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost effective designs of flyback converters. AC IN DC OUT Vstr PWM Vfb Drain Vcc Source Figure 1. Typical Flyback Application Rev.1.0.6 ?2005 Fairchild Semiconductor Corporation FSDM07652R Internal Block Diagram Vcc 3 N.C 5 0.5/0.7V + Vstr 6 Drain 1 Istart Vref 8V/12V Switching disable OSC IFB S Q Vcc Idelay Vref Vcc good Internal Bias Vfb 4 PWM 2.5R Soft start R Q Gate driver R LEB V SD Vcc S Q 2 GND Vovp TSD Vcc good R Q AOCP Vocp Figure 2. Functional Block Diagram of FSDM07652R 2 FSDM07652R Pin Definitions Pin Number 1 2 3 Pin Name Drain GND Vcc Pin Function Description This pin is the high voltage power Sense FET drain. It is designed to drive the transformer directly. This pin is the control ground and the Sense FET source. This pin is the positive supply voltage input. During start up, the power is supplied by an internal high voltage current source that is connected to the Vstr pin. When Vcc reaches 12V, the internal high voltage current source is disabled and the power is supplied from the auxiliary transformer winding. 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 6.0V, the over load protection is activated resulting in shutdown of the FPSTM. This pin is connected directly 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. 4 Vfb 5 6 N.C Vstr Pin Configuration TO-220F-6L 6.Vstr 5.N.C. 4.Vfb 3.Vcc 2.GND 1.Drain Figure 3. Pin Configuration (Top View) 3 FSDM07652R Absolute Maximum Ratings (Ta=25?C, unless otherwise specified) Parameter Drain-source voltage Vstr Max Voltage Pulsed Drain current (Tc=25?C) (1) Symbol VDSS VSTR IDM ID EAS IAS VCC VFB PD(Watt H/S) Tj TA TSTG - Value 650 650 15 3.8 2.4 370 20 -0.3 to VCC 45 Internally limited -25 to +85 -55 to +150 2.0 (GND-Vstr/Vfb=1.5kV) 300 (GND-Vstr/Vfb=225V) Unit V V ADC A A mJ A V V W ?C ?C ?C kV V Continuous Drain Current(Tc=25?C) Continuous Drain Current(Tc=100?C) Single pulsed avalanche energy Single pulsed avalanche current Supply voltage Input voltage range Total power dissipation(Tc=25?C) Operating junction temperature Operating ambient temperature Storage temperature range ESD Capability, HBM Model (All pins excepts for Vstr and Vfb) ESD Capability, Machine Model (All pins excepts for Vstr and Vfb) (2) (3) Notes: 1. Repetitive rating: Pulse width limited by maximum junction temperature 2. L=14mH, starting Tj=25?C 3. L=13uH, starting Tj=25?C Thermal Impedance Parameter Junction-to-Ambient Thermal Junction-to-Case Thermal Symbol Value 49.90 2.78 Unit ?C/W ?C/W JA JC(2) (1) Notes: 1. Free standing with no heat-sink under natural convection. 2. Infinite cooling condition - Refer to the SEMI G30-88. 4 FSDM07652R Electrical Characteristics (Ta = 25?C unless otherwise specified) Parameter Sense FET SECTION Drain source breakdown voltage BVDSS VGS = 0V, ID = 250?A VDS = 650V, VGS = 0V Zero gate voltage drain current Static drain source on resistance (1) Output capacitance Turn on delay time Rise time Turn off delay time Fall time CONTROL SECTION Initial frequency Voltage stability Temperature stability (2) Maximum duty cycle Minimum duty cycle Start threshold voltage Stop threshold voltage Feedback source current Soft-start time Leading Edge Blanking time BURST MODE SECTION Burst Mode Voltages (2) PROTECTION SECTION Peak current limit (4) Over voltage protection Abnormal Over current protection current (3) Thermal shutdown temperature (2) Shutdown feedback voltage IOVER VOVP IAOCP TSD VSD VFB 5.5V VFB=5V, VCC=14V 2.2 18 5.54 130 5.5 2.5 19 6.15 145 6.0 2.8 20 6.77 160 6.5 A V A ?C V 5 VBURH VBURL Vcc=14V Vcc=14V 0.7 0.5 V V FOSC FSTABLE FOSC DMAX DMIN VSTART VSTOP IFB TS TLEB VFB=GND VFB=GND VFB=GND VFB=3 VFB = 3V 13V Vcc 18V -25?C Ta 85?C 60 0 0 75 11 7 0.7 66 1 ?5 80 12 8 0.9 10 250 72 3 ?10 85 0 13 9 1.1 15 kHz % % % % V V mA ms ns IDSS VDS= 520V VGS = 0V, TC = 125?C VGS = 10V, ID = 2.5A VGS = 0V, VDS = 25V, f = 1MHz VDD= 325V, ID= 5A (MOSFET switching time is essentially independent of operating temperature) 650 1.4 100 22 60 115 65 50 200 1.6 ns V ?A ?A Symbol Condition Min. Typ. Max. Unit RDS(ON) COSS TD(ON) TR TD(OFF) TF pF FSDM07652R Shutdown delay current TOTAL DEVICE SECTION IDELAY VFB=5V 2.8 3.5 4.2 ?A IOP Operating supply current (5) IOP(MIN) IOP(MAX) VFB=GND, VCC=14V VFB=GND, VCC=10V VFB=GND, VCC=18V 2.5 5 mA Notes: 1. Pulse test : Pulse width 300?S, duty 2% 2. These parameters, although guaranteed at the design, are not tested in mass production. 3. These parameters, although guaranteed, are tested in EDS(wafer test) process. 4. These parameters indicate the inductor current. 5. This parameter is the current flowing into the control IC. 6 FSDM07652R Comparison Between FS6M07652RTC and FSDM07652R Function Soft-Start FS6M07652RTC Adjustable soft-start time using an external capacitor FSDM07652R FSDM07652R Advantages Internal soft-start with ? Gradually increasing current limit typically 10ms (fixed) during soft-start further reduces peak current and voltage component stresses ? Eliminates external components used for soft-start in most applications ? Reduces or eliminates output overshoot Burst Mode Operation ? Built into controller ? Built into controller ? Improve light load efficiency ? Output voltage fixed ? Reduces no-load consumption ? Output voltage drops to around half 7 FSDM07652R Typical Performance Characteristics (These Characteristic Graphs are Normalized at Ta= 25?C) 1. 2 1. 0 0. 8 0. 6 0. 4 0. 2 0. 0 -50 -25 0 25 50 75 100 125 Junction Temperature() 1. 2 1. 0 Start Thershold Voltage (Normalized to 25) 0. 8 0. 6 0. 4 0. 2 0. 0 -50 -25 0 25 50 75 100 125 Junction Temperature() Operating Current (Normalized to 25) Operating Current vs. Temp Start Threshold Voltage vs. Temp 1.2 1.0 Stop Threshold Voltage (Normalized to 25) Initial Frequency (Normalized to 25) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() -50 -25 0 25 50 75 100 125 Junction Temperature() Stop Threshold Voltage vs. Temp Operating Freqency vs. Temp 1.2 1.0 Maximum Duty Cycle (Normalized to 25) 1.2 1.0 FB Source Current (Normalized to 25) -50 -25 0 25 50 75 100 125 0.8 0.6 0.4 0.2 0.0 Junction Temperature() 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() Maximum Duty vs. Temp Feedback Source Current vs. Temp 8 FSDM07652R Typical Performance Characteristics (Continued) (These Characteristic Graphs are Normalized at Ta= 25?C) 1.2 1.0 Shutdown FB Voltage (Normalized to 25) 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() 1.2 1.0 Shutdown Delay Current (Normalized to 25) 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() ShutDown Feedback Voltage vs. Temp 1. 2 1. 0 0. 8 0. 6 0. 4 0. 2 0. 0 -50 -25 0 25 50 75 100 125 ShutDown Delay Current vs. Temp 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() Junction Temperature() Over Voltage Protection vs. Temp 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() Burst Mode Enable Voltage (Normalized to 25) Over Voltage Protection (Normalized to 25) Burst Mode Enable Voltage vs. Temp 1.2 1.0 Over Current Limit (Normalized to 25) 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() Burst Mode Disable Voltage (Normalized to 25) Burst Mode Disable Voltage vs. Temp Current Limit vs. Temp 9 FSDM07652R Typical Performance Characteristics (Continued) (These Characteristic Graphs are Normalized at Ta= 25?C) 1.2 1.0 Soft Start Time (Normalized to 25) 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature() Soft Start Time vs. Temp 10 FSDM07652R Functional Description 1. Startup : In previous generations of Fairchild Power Switches (FPSTM) the Vcc pin had an external start-up resistor to the DC input voltage line. In this generation the startup resistor is replaced by an internal high voltage current source. At startup, an internal high voltage current source supplies the internal bias and charges the external capacitor (Cvcc) that is connected to the Vcc pin as illustrated in figure 4. When Vcc reaches 12V, the FPSTM begins switching and the internal high voltage current source is disabled. Then, the FPSTM continues its normal switching operation and the power is supplied from the auxiliary transformer winding unless Vcc goes below the stop voltage of 8V. 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 k), 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. VDC CVcc 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 FPSTM 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 3 6 Vstr Vcc Vref IFB OSC Istart Vref 8V/12V Vcc good Internal Bias Vo Vfb H11A817A CB Idelay 4 D1 D2 2.5R + Vfb* SenseFET R Gate driver KA431 - Figure 4. Internal startup circuit VSD OLP Rsense Figure 5. Pulse width modulation (PWM) circuit 2. Feedback Control : FSDM07652R 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 plus an offset voltage 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. 3. Protection Circuit : The FSDM07652R has several self protective functions such as over load protection (OLP), abnormal over current protection (AOCP), over voltage protection (OVP) and thermal shutdown (TSD). Because these protection circuits are fully integrated into the IC without external components, the reliability can be improved without increasing cost. Once the fault condition occurs, switching is terminated and the Sense FET remains off. This causes Vcc to fall. When Vcc reaches the UVLO stop voltage, 8V, the protection is reset and the internal high voltage current source charges the Vcc capacitor via the Vstr pin. When Vcc reaches the UVLO start voltage,12V, the FPSTM resumes its normal operation. In this manner, the auto-restart can alternately enable and disable the switching of the power Sense FET until the fault condition is eliminated (see figure 6). 11 FSDM07652R Vds Power on Fault occurs VFB Fault removed 6.0V Over load protection 2.5V Vcc T 12= Cfb*(6.0-2.5)/Idelay 12V 8V T1 T2 t Figure 7. Over load protection t Normal operation Fault situation Normal operation Figure 6. Auto restart operation AOCP Vaocp - Figure 8. AOCP block 3.3 Over voltage Protection (OVP) : If the secondary side feedback circuit were to malfunction or a solder defect caused 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 is activated. Because more energy than required is provided to the output, the 12 + 3.1 Over Load Protection (OLP) : Overload is defined as the load current exceeding a pre-set level due to an unexpected event. In this situation, the protection circuit should be activated in order to protect the SMPS. However, even when the SMPS is in the normal operation, the over load protection circuit can be activated during the load transition. In order to avoid this undesired operation, the over load protection circuit is designed to be activated 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 beyond 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). If Vfb exceeds 2.5V, D1 is blocked and the 3.5uA 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 7. The delay time for shutdown is the time required to charge CB from 2.5V to 6.0V with 3.5uA. In general, a 10 ~ 50 ms delay time is typical for most applications. 3.2 Abnormal Over Current Protection (AOCP) : Even though the FPSTM has OLP (Over Load Protection) and current mode PWM feedback, these are not enough to protect the FPSTM when a secondary side diode short or a transformer pin short occurs. The FPSTM has an internal AOCP (Abnormal Over Current Protection) circuit as shown in figure 8. 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 for longer than 300ns, the reset signal is applied to the latch, resulting in the shutdown of SMPS. 2.5R OSC PWM S Q R Q Gate driver R LEB Rsense 2 GND FSDM07652R output voltage may exceed the rated voltage before the over load protection is activated, 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, Vcc is proportional to the output voltage and the FPSTM uses Vcc instead of directly monitoring the output voltage. If VCC exceeds 19V, an OVP circuit is activated resulting in the termination of the switching operation. In order to avoid undesired activation of OVP during normal operation, Vcc should be designed to be below 19V. Vo Voset VFB 0.7V 0.5V Ids 3.4 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 heat generation from the Sense FET. When the temperature exceeds approximately 150?C, the thermal shutdown is activated. Vds 4. Soft Start : The FPSTM 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 10msec, 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. time Switching disabled T1 T2 T3 Switching disabled T4 Figure 9. Waveforms of burst operation 5. Burst operation : In order to minimize power dissipation in standby mode, the FPSTM enters burst mode operation. As the load decreases, the feedback voltage decreases. As shown in figure 9, the device automatically enters burst mode when the feedback voltage drops below VBURL(500mV). 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(700mV) 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. 13 FSDM07652R Typical application circuit Application LCD Monitor Output power 40W Input voltage Universal input (85-265Vac) Output voltage (Max current) 5V (2.0A) 12V (2.5A) Features ? ? ? ? ? ? High efficiency (>81% at 85Vac input) Low zero load power consumption (<300mW at 240Vac input) Low standby mode power consumption (<800mW at 240Vac input and 0.3W load) Low component count Enhanced system reliability through various protection functions Internal soft-start (10ms) Key Design Notes ? Resistors R102 and R105 are employed to prevent start-up at low input voltage. After startup, there is no power loss in these resistors since the startup pin is internally disconnected after startup. ? The delay time for over load protection is designed to be about 50ms with C106 of 47nF. If a faster triggering of OLP is required, C106 can be reduced to 10nF. ? Zener diode ZD102 is used for a safety test such as UL. When the drain pin and feedback pin are shorted, the zener diode fails and remains short, which causes the fuse (F1) blown and prevents explosion of the opto-coupler (IC301). This zener diode also increases the immunity against line surge. 1. Schematic D202 T1 EER3016 MBRF10100 1 R103 56k 2W C104 2.2nF 1kV 10 C201 1000uF 25V 8 L201 12V, 2.5A C202 1000uF 25V 2 D101 UF 4007 C103 100uF 400V BD101 2 2KBP06M3N257 1 3 R102 30k 3 R105 40k 6 5 IC1 FSDM07652R Vstr NC Drain 1 D201 MBRF1045 C105 D102 22uF TVR10G 50V R104 5 4 7 C203 1000uF 10V 5 6 L202 5V, 2A C204 1000uF 10V 4 C102 220nF 275VAC 4 ZD102 10V C106 47nF 50V Vcc 3 Vfb GND 2 ZD101 22V LF101 23mH C301 4.7nF R201 1k R101 560k 1W R204 5.6k R203 12k C205 47nF R202 1.2k IC301 H11A817A RT1 5D-9 C101 220nF 275VAC F1 FUSE 250V 2A IC201 KA431 R205 5.6k 14 FSDM07652R 2. Transformer Schematic Diagram EER3016 Np/2 Np/2 1 10 N 9 8 12V 2 3 4 Na 5 7 N 5V 6 3.Winding Specification No Na Np/2 N12v N5v Np/2 Pin (sf) 45 21 10 8 76 32 Wire 0.2 ?1 Turns 8 18 7 3 18 Winding Method Center Winding Solenoid Winding Center Winding Center Winding Solenoid Winding Insulation: Polyester Tape t = 0.050mm, 2Layers 0.4 ? 1 0.3 ? 3 0.3 ? 3 0.4 ? 1 Insulation: Polyester Tape t = 0.050mm, 2Layers Insulation: Polyester Tape t = 0.050mm, 2Layers Insulation: Polyester Tape t = 0.050mm, 2Layers Outer Insulation: Polyester Tape t = 0.050mm, 2Layers 4.Electrical Characteristics Pin Inductance Leakage Inductance 1-3 1-3 Specification 520uH ? 10% 10uH Max Remarks 100kHz, 1V 2nd all short 5. Core & Bobbin Core : EER 3016 Bobbin : EER3016 Ae(mm2) : 96 15 FSDM07652R 6.Demo Circuit Part List Part Value Fuse Note Part Value Note C301 4.7nF Inductor Polyester Film Cap. F101 RT101 R101 R102 R103 R104 R105 R201 R202 R203 R204 R205 2A/250V NTC 5D-9 Resistor L201 L202 1W 1/4W 2W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W D101 D102 D201 D202 ZD101 ZD102 BD101 Capacitor 5uH 5uH Wire 1.2mm Wire 1.2mm 560K 30K 56K 5 40K 1K 1.2K 12K 5.6K 5.6K Diode UF4007 TVR10G MBRF1045 MBRF10100 Zener Diode Zener Diode Bridge Diode 22V 10V Bridge Diode 2KBP06M 3N257 Line Filter C101 C102 C103 C104 C105 C106 C201 C202 C203 C204 C205 220nF/275VAC 220nF/275VAC 100uF/400V 2.2nF/1kV 22uF/50V 47nF/50V 1000uF/25V 1000uF/25V 1000uF/10V 1000uF/10V 47nF/50V Box Capacitor Box Capacitor Electrolytic Capacitor Ceramic Capacitor Electrolytic Capacitor Ceramic Capacitor Electrolytic Capacitor Electrolytic Capacitor Electrolytic Capacitor Electrolytic Capacitor Ceramic Capacitor IC101 IC201 IC301 LF101 23mH Wire 0.4mm IC FSDM07652R KA431(TL431) H11A817A FPSTM(7A,650V) Voltage reference Opto-coupler 16 FSDM07652R 7. Layout Figure 10. Layout Considerations for FSDM07652R Figure 11. Layout Considerations for FSDM07652R 17 FSDM07652R Package Dimensions TO-220F-6L(Forming) 18 FSDM07652R Ordering Information Product Number Package Marking Code BVdss Rds(on)Max. FSDM07652RWDTU WDTU : Forming Type TO-220F-6L(Forming) DM07652R 650V 1.6 19 FSDM07652R 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. www.fairchildsemi.com 1/12/05 0.0m 001 2005 Fairchild Semiconductor Corporation 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. http://www.icinfo.net http://pdf.ecgoo.net

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