FAN7311

FAN7311 LCD Backlight Inverter Drive IC January 2007 FAN7311 LCD Backlight Inverter Drive IC Features High-Efficiency Single-Stage Power Conversion Wide Input Voltage Range: 5V to 25.5V Backlight Lamp Ballast and Soft Dimming Reduced Number of Required External Components Precision Voltage Reference Trimmed to 2% ZVS Full-Bridge Topology Soft-Start Capability PWM Control at Fixed Frequency Analog and Burst Dimming Function Programmable Striking Frequency Open-Lamp Protection Open-Lamp Regulation 20-Pin SSOP/SOIC/DIP Description The FAN7311 provides all the control functions for a series parallel resonant converter as well as a pulse width modulation (PWM) controller to develop a supply voltage. Typical operating frequency range is between 30kHz and 250kHz, depending on the cold cathode fluorescent lamp (CCFL) and the transformer's characteristics. The FAN7311 uses a new patent-pending phaseshift control. 20-SSOP 20-SOIC Applications LCD TV LCD Monitor 1 1 20-DIP 1 Ordering Information Part Number FAN7311G FAN7311GX FAN7311M FAN7311MX FAN7311N Package 20-SSOP 20-SSOP 20-SOIC 20-SOIC 20-DIP Pb-Free Yes Yes Yes Yes Yes Operating Temperature Range Packing Method Rail Tape & Reel -25°C to 85°C Rail Tape & Reel Rail Protected by U.S. Patent: 5,652,479; 7,158,390. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Internal Block Diagram RT max. 2V min. 0.5V 6 μA S_S RT1 MRT1 OSCILLATOR OUTA Output Driver + + Output Control Logic Output Driver OUTB PGND OUTC OUTD CT Striking Logic OLP S_S 1.4μA UVLO + 2.5V Solr 105μA Voltage Reference & Internal Bias Solr 2.5VREF Error Amp. Q SET EA_OUT ADIM EA_IN + S R UVLO + - Q CLR 2.5V 1.5V OLR 2V REF VOLP VOLP+α OLP max. 2V min. 0.5V Sburst 85μA V a+ α BCT BDIM AGND + Sburst UVLO + - ENA 1.4V VIN VIN + - UVLO 5V FAN7311 Rev.06 Figure 1. Functional Block Diagram of FAN7311 © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 2 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Pin Assignments RT1 20 OUTB OUTA 19 18 VIN 17 PGND OUTC 16 15 OUTD 14 CT 13 RT 12 BCT 11 FAN7311 1 OLP 2 OLR 3 ENA 4 S_S 5 GND 6 REF 7 ADIM 8 BDIM 9 10 EA_IN EA_OUT FAN7311 Rev. 05 Figure 2. Pin Configuration (Top View) Pin Definitions Pin # 1 2 3 4 5 6 7 8 9 10 Name OLP OLR ENA S_S GND REF ADIM BDIM EA_IN EA_OUT Description Open-Lamp Protection Open-Lamp Regulation Enable Input Soft-Start Analog Ground 2.5V Reference Voltage Analog Dimming Input Burst Dimming Input Error Amplifier Input Error Amplifier Output Pin # 11 12 13 14 15 16 17 18 19 20 Name BCT RT CT OUTD OUTC PGND VIN OUTA OUTB RT1 Description Burst Dimming Timing Capacitor Timing Resistor Timing Capacitor NMOSFET Drive Output D PMOSFET Drive Output C Power Ground Supply Voltage PMOSFET Drive Output A NMOSFET Drive Output B Striking Frequency Resistor © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 3 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. For typical values, TA=25°C and VIN=12V. For min. and max. values, TA is the operating ambient temperature range with -25°C ≤ TA ≤ 85°C and 5V ≤ VIN ≤ 25.5V, unless otherwise specified. Symbol VIN TA TJ TSTG θJA Supply Voltage Characteristics Operating Temperature Range Junction Temperature Storage Temperature Range Thermal Resistance Junction-to-Ambient (still air)(1) 20-SSOP 20-SOIC 20-DIP Power Dissipation 20-SSOP 20-SOIC 20-DIP Value 5 to 25.5 -25 to 85 150 -65 to 150 112 70 TBD(2) 1.1 1.8 TBD Unit V °C °C °C °C/W PD W Notes: 1. Thermal resistance test board size: 76.2 * 114.3 * 1.6mm (1S0P). JEDEC standard: JESD51-2, JESD51-3. 2. To be determined. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 4 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Electrical Characteristics For typical values, TA=25°C and VIN=12V. For min. and max. values, TA is the operating ambient temperature range with -25°C ≤ TA ≤ 85°C and 5V ≤ VIN ≤ 25.5V, unless otherwise specified. Specifications from -25°C to 85°C are guaranteed by design based on final characterization results. Symbol ΔVref V25 Characteristics Line Regulation 2.5V Regulation Voltage Test Condition 5 ≤ VIN ≤ 25.5V Min. Typ. 2 Max. 25 2.55 Unit mV V REFERENCE SECTION (Recommend X7R Capacitor) 2.45 TA = 25°C, CT = 270pF, RT = 18kΩ CT = 270pF, RT = 18kΩ CT High Voltage CT Low Voltage TA = 25°C, CTB = 10nF, 209.25 RT=18kΩ CTB = 10nF, RT=18kΩ BCT High Voltage BCT Low Voltage Open Loop Gain(3) Unit Gain Bandwidth(3) EA_IN = 0V EA_OUT = 1.5V EA_OUT = 1.5V 1 75 61 Va+0.1 4 105 85 Va+0.4 6 4 Start at open lamp Normal -> open lamp 2.2 1.3 1.75 0.7 2.5 1.5 2.00 1.4 2.8 1.7 2.25 2.1 5 VIN = Vth-0.2 VIN = 12V VIN = 12V 130 1.5 200 180 4.0 370 135 109 Va+0.7 8 2.00 Feedback Output High Voltage Output Sink Current Output Source Current EA_IN Driving Current on OLR EA_IN Driving Current on Burst Dimming Feedback High Voltage on Burst Dimming R(EA_IN) = 60kΩ Soft-Start Current Soft-Start Clamping Voltage(3) S_S=1V 206.25 2.50 OSCILLATOR SECTION (MAIN) fosc Vcth Vctl Oscillation Frequency 110.4 108 115.0 115 2.0 0.5 119.6 122 V V kHz OSCILLATOR SECTION (BURST) foscb Vbcth Vbctl Av GBW Veh lsin lsur Iolr Iburst Vfbh ISS Vssh Volp0 Volp1 Volr Iolp Vth Ist Iop Isb Oscillation Frequency 225.00 225.00 2 0.5 80 1.5 2.27 2.54 -1 240.75 241.75 V V dB MHz V mA mA µA µA V µA V V V V µA V µA mA µA Hz ERROR AMP SECTION SOFT-START SECTION PROTECTION SECTION Open-Lamp Protection Voltage 0 Open-Lamp Protection Voltage 1 Open-Lamp Regulation Voltage Open-Lamp Protection Charging Current Start Threshold Voltage Startup Current Operating Supply Current Stand-by Current UNDER-VOLTAGE LOCKOUT SECTION Note: 3. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 5 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Electrical Characteristics (Continued) For typical values, TA=25°C and VIN=12V. For min. and max. values, TA is the operating ambient temperature range with -25°C ≤ TA ≤ 85°C and 5V ≤ VIN ≤ 25.5V, unless otherwise specified. Specifications from -25°C to 85°C are guaranteed by design based on final characterization results. Symbol ON/OFF SECTION Von Voff Vpdhv Vphlv Vndhv Vndhv Vpuv Vnuv tr tf Characteristics On State Input Voltage Off Stage Input Voltage PMOS Gate High Voltage PMOS Gate Low Voltage NMOS Gate Drive Voltage NMOS Gate Drive Voltage Test Condition Min. 2 Typ. Max. 5 0.7 Unit V V V OUTPUT SECTION VIN = 12V VIN = 12V VIN = 12V VIN = 12V VIN-0.3 0.3 200 200 500 500 6.5 VIN VIN-10.5 VIN-8.5 8.5 0 VIN-6.5 10.5 V V V V V ns ns PMOS Gate Voltage With UVLO Activated VIN = Vth-0.2 NMOS Gate Voltage With UVLO Activated VIN = Vth-0.2 Rising Time(4) Falling Time(4) Min. Overlap Between Diagonal Switches(4) Max. Overlap Between Diagonal Switches(4) VIN = 12V, CL=2nF VIN = 12V, CL=2nF fosc = 100kHz fosc = 100kHz RT = 18kΩ RT = 18kΩ MAX./MIN. OVERLAP 0 100 % % DELAY TIME PDR_A/NDR_B(4) PDR_C/NDR_D(4) 450 450 ns ns Note: 4. These parameters, although guaranteed, are not 100% tested in production. © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 6 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Function Description UVLO: The under-voltage lockout circuit guarantees stable operation of the IC’s control circuit by stopping and starting it as a function of the VIN value. The UVLO circuit turns on the control circuit when VIN exceeds 5V. When VIN is lower than 5V, the IC’s standby current is less than 200µA. ENA: Applying voltage higher than 2V to the ENA pin enables operation of the IC. Applying voltage lower than 0.7V to the ENA pin disables operation of the inverter. Soft-Start: The soft-start function requires that the S_S pin is connected through a capacitor to GND. A soft-start circuit ensures a gradual increase in the input and output power. The capacitor connected to the S_S pin determines the rate at which the duty ratio rises. It is charged by a 6µA current source. Figure 4. Main Oscillator Waveform Burst Oscillator & Burst Dimming: The timing capacitors (BCTs) are charged by the reference current source, which is formed by the timing resistor (RT). The timing resistor’s voltage is regulated at 1.25V. The sawtooth waveform charges up to 2V. Once this voltage is reached, the capacitors begin discharging down to 0.5V. Next, the timing capacitors start charging again and a new switching cycle begins. The burst dimming frequency can be programmed by adjusting the RT and BCT values. The burst dimming frequency can be calculated as shown in Equation 2. fburst = Figure 3. Soft-Start During Initial Operation Main Oscillator: The timing capacitors (CTs) are charged by the reference current source, which is formed by the timing resistor (RT). The timing resistor’s voltage is regulated at 1.25V. The sawtooth waveform charges up to 2V. Once this voltage is reached, the capacitors begin discharging down to 0.5V. Next, the timing capacitors start charging again and a new switching cycle begins. The main frequency can be programmed by adjusting the RT and CT values. The main frequency can be calculated as shown below. 3.75 96 ⋅ RT ⋅ CT (2) To avoid visible flicker, the burst dimming frequency should be greater than 120Hz. By comparing the input of BDIM pin with the 0.5~2V triangular wave of the burst oscillator, the PWM pulses for burst dimming. The PWM pulse controls EA_OUT’s voltage by summing 85µA into the EA_IN pin. f op = 19 32 ⋅ RT ⋅ C T (1) © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 7 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Figure 5. Burst Oscillator Waveform Figure 7. OLR Voltage During Striking Mode Output Drives: The four output drives are designed so that switches A and B, C and D never turn on simultaneously. The OUTA-OUTB pair is intended to drive one half-bridge in the external power stage. The OUTCOUTD pair drives the other half-bridge. VIN 8.5V 8.5V VIN 8.5V Figure 6. Burst Dimming Open Lamp Regulation and Open-Lamp Protection: It is necessary to suspend power stage operation if an open lamp occurs, because the power stage has high gain. When a voltage higher than 2V is applied to the OLR pin, the part enters regulation mode and controls the EA_OUT voltage. This limits the lamp voltage by summing 105µA into the feedback node. At the same time, the OLP capacitor, connected to the OLP pin, is charged by the 1.4µA internal current source. Once it reaches 2.5V, the IC enters shut down where all output is high. 8.5V Figure 8. Phase-Shift Control Waveforms © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 8 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Timing Diagram The FAN7311 uses the improved phase-shift control full-bridge to drive CCFL. As a result, the temperature difference between the left and the right leg is almost zero. The detail timing is shown below. EA_OUT CT SYNC T T1 POUT A NOUT B POUT C NOUT D FAN7311 Rev.04 Figure 9. Phase-Shift Control Waveforms © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 9 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Typical Application Circuits Application 19-inch LCD Monitor Lamps 4 Input Voltage 13V 1. Schematic F1 FUSE CN5 1 2 3 4 5 6 7 8 9 10 12505WR-10 C22 220μF 25V M1 C25 1μF C27 1 μF C26 R6 OLP OLR RT1 OUTB OUTA VIN PGND OUTC OUTD CT RT C4 EA_OUT BCT RT FB 4.7nF C5 R5 EA_IN C3 4.7n 220pF 27kΩ 0.1μF 82kΩ RT 12V 0 IC1 FAN7311 0 0 SN GN SP GP DN DN DP DP 0 0 OUTB OUTA C6 1μF R25 10kΩ ON/OFF R24 10kΩ C28 10nF C1 0.22μF ENA C7 10μF TX1 C8 10μF LTM190EX 1 HOT CN1 CCFL COLD 2 0 0 0 C2 S_S GND 0 0 J1 0 FDS8958A 0 DIM(0~3.3V) REF 0 M2 1 μF REF ADIM 0 SN GN DN DN DP 1 HOT CN2 CCFL COLD R2 56kΩ R7 0Ω BDIM C10 15pF C11 15pF 2 R4 22kΩ 0 0 0 C21 10nF R3 18kΩ R27 10kΩ SP GP OLP1 DP OLP2 FDS8958A OLR D4 BAV70 R26 1kΩ C14 10nF R13 1kΩ C30 10nF 0 0 D6 BAV99 R16 1kΩ D7 BAV99 R17 1kΩ R8 100kΩ R9 9.1kΩ R15 10kΩ 0 0 0 FB 0 0 0 0 0 OLR R14 100kΩ 0 TX2 1 HOT CN3 CCFL COLD 2 1 OLP1 R22 10kΩ R23 10kΩ OLP2 2 HOT CN4 CCFL COLD REF 0 OLP Q1 C9 1μF KST2222 R1 330kΩ C12 15pF C13 15pF OLP3 OLP4 D11 BAW56 R20 10kΩ OLP3 R21 10kΩ OLP4 C19 2.2nF C20 2.2nF OLR D1 BAW56 D3 BAV70 0 0 R12 1kΩ C29 10nF R11 1kΩ C15 D8 BAV99 10nF R18 1kΩ D9 BAV99 R19 1kΩ 0 D10 BAW56 C18 2.2n C17 2.2n 0 0 0 FB 0 0 0 0 0 0 0 FAN7311 Rev. 04 Figure 10. Typical Application Circuit 2. Transformer Schematic Diagram - Supported by Namyang electronics (http://www.namyangelec.co.kr) FAN7311 Rev. 04 Figure 11. Transformer Schematic 3. Core & Bobbin Core: EFD2124 Material: PL7 Bobbin: EFE2124 © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 10 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC 4. Winding Specification Pin No. 5 --> 2 7 --> 9 Wire 1 UEW 0.45 φ 1 UEW 0.04 φ Turns 19 2300 Inductance 115 µH 1.5 H Leakage Inductance 21.5µH 280mH Remarks 1KHz, 1V 1KHz, 1V 5. BOM of the Application Circuit Part Ref. F1 R1 R2 R3 R4 R5 R6 R8 R9 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 C1 C2 C3 C4 Value Fuse 24V 3A Description / Vendor Fuse 1608 J 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 F 1608 J 1608 J 1608 J 1608 J 1608 J 1608 J 1608 F 1608 J 16V 1608 K 50V 2012 K 50V 1608 K 50V 1608 K Part Ref. C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C17 C18 C19 C20 C21 C25 C26 C27 C28 C29 C30 D1 D3 D4 D6 D7 D8 D9 D10 D11 Q1 Value 220pF 1µF 10µF 10µF 1µF 15pF 15pF 15pF 15pF 10nF 10nF 2.2nF 2.2nF 2.2nF 2.2nF 10nF 1µF 0.1µF 1µF 10nF 10nF 10nF Description / Vendor 50V 1608 J 50V 2012 K 16V 3216 16V 3216 16V 1608 K 3KV 3216 3KV 3216 3KV 3216 3KV 3216 50V 1608 K 50V 1608 K 50V 1608 Z 50V 1608 Z 50V 1608 Z 50V 1608 Z 50V 1608 Z 50V 2012 K 16V 1608 K 50V 2012 K 50V 1608 Z 50V 1608 K 50V 1608 K Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Fairchild Semiconductor Resistor (SMD) 330kΩ 56kΩ 18kΩ 22kΩ 27kΩ 82kΩ 100kΩ 9.1kΩ 1kΩ 1kΩ 1kΩ 100kΩ 10kΩ 1kΩ 1kΩ 1kΩ 1kΩ 10kΩ 10kΩ 10kΩ 10kΩ 10kΩ 10kΩ 1kΩ 10kΩ Capacitor (SMD) 0.22µF 1µF 4.7nF 4.7nF Diode / TR (SMD) BAW56 BAV70 BAV70 BAV99 BAV99 BAV99 BAV99 BAW56 BAW56 KST2222 © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 11 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC 5. BOM of the Application Circuit (Continued) Part Ref. C22 M1 M2 TX1 TX2 Value 220µF Description / Vendor 25V Fairchild semiconductor Fairchild semiconductor Part Ref. CN1 CN2 CN3 CN4 CN5 Value 35001WR-02A 35001WR-02A 35001WR-02A 35001WR-02A 12505WR-10 Description / Vendor Electrolytic capacitor MOSFET (SMD) FDS8958A FDS8958A EFD2124 EFD2124 Wafer (SMD) Transformer (SMD) Supported by Namyang electronics (http://www.namyangelec.co.kr) © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 12 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Mechanical Dimensions 20-SSOP Dimensions are in millimeters unless otherwise specified. NOTE 1. THESE DIMENSIONS DO NOT INCLUDE MOLD PROTRUSION. 2. ( ) IS REFERENCE 3. [ ] IS ASS'Y OUT QUALITY -0.05 +0.10 0.05MIN 0.10 MAX BD-6305 Rev. 00 2001.04.06 0.10 MAX Figure 12. 20-Lead Shrink Small Outline Package (SSOP) © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 13 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Mechanical Dimensions (Continued) 20-SOIC Dimensions are in millimeters unless otherwise specified. Symbol A A1 B C D E e H h L N α ccc Notes: Inches Min. Max. Millimeters Min. Max. Notes .093 .104 .004 .012 .013 .020 .009 .013 .496 .512 .291 .299 .050 BSC .394 .010 .016 20 0° — 8° .004 .419 .029 .050 2.35 2.65 0.10 0.30 0.33 0.51 0.23 0.32 12.60 13.00 7.40 7.60 1.27 BSC 10.00 0.25 0.40 20 0° — 8° 0.10 10.65 0.75 1.27 5 2 2 3 6 1. Dimensioning and tolerancing per ANSI Y14.5M-1982. 2. "D" and "E" do not include mold flash. Mold flash or protrusions shall not exceed .010 inch (0.25mm). 3. "L" is the length of terminal for soldering to a substrate. 4. Terminal numbers are shown for reference only. 5. "C" dimension does not include solder finish thickness. 20 11 6. Symbol "N" is the maximum number of terminals. E H 1 10 D A e B A1 h x 45° C SEATING PLANE –C– LEAD COPLANARITY ccc C L α January 2001, Rev. A soic20_dim.pdf Figure 13. 20-Lead Small Outline Integrated Circuit (SOIC) © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 14 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC Mechanical Dimensions (Continued) 20-DIP Dimensions are in millimeters unless otherwise specified. Figure 14. 20-Lead Dual In-Line Package (DIP) © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 15 www.fairchildsemi.com FAN7311 LCD Backlight Inverter Drive IC FAIRCHILD SEMICONDUCTOR TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ ActiveArray™ Bottomless™ Build it Now™ CoolFET™ CROSSVOLT™ DOME™ EcoSPARK™ E2CMOS™ EnSigna™ FACT® FAST® FASTr™ FPS™ FRFET™ FACT Quiet Series™ GlobalOptoisolator™ GTO™ HiSeC™ I2C™ i-Lo™ ImpliedDisconnect™ IntelliMAX™ ISOPLANAR™ LittleFET™ MICROCOUPLER™ MicroFET™ MicroPak™ MICROWIRE™ MSX™ MSXPro™ Across the board. Around the world.™ The Power Franchise® Programmable Active Droop™ OCX™ OCXPro™ OPTOLOGIC® OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerEdge™ PowerSaver™ PowerTrench® QFET® QS™ QT Optoelectronics™ Quiet Series™ RapidConfigure™ RapidConnect™ µSerDes™ ScalarPump™ SILENT SWITCHER® SMART START™ SPM™ Stealth™ SuperFET™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TCM™ TinyBoost™ TinyBuck™ TinyPWM™ TinyPower™ TinyLogic® TINYOPTO™ TruTranslation™ UHC® UniFET™ VCX™ Wire™ 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. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. 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. 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, or (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 significant injury to the user. 2. A critical component is 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 Advance Information Preliminary Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and 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. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. No Identification Needed Full Production Obsolete Not In Production Rev. I22 © 2006 Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.6 16 www.fairchildsemi.com