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FAN7313 LCD Backlight Inverter Drive IC September 2006 FAN7313 LCD Backlight Inverter Drive IC Features High-Efficiency Single-Stage Power Conversion Wide Input Voltage Range: 4.5V to 25.5V Backlight Lamp Ballast and Soft Dimming Reduces Required External Components Precision Voltage Reference Trimmed to 2% Push-Pull Topology Soft-Start Capability PWM Control at Fixed Frequency Analog and Burst Dimming Functions Open-Lamp Protection Open-Lamp Regulation Over-Voltage Protection Short-Circuit Protection 20-Pin SOIC Description FAN7313 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. 20-SOIC Applications LCD TV LCD Monitor Ordering Information Part Number FAN7313M FAN7313MX Package 20-SOIC 20-SOIC Pb-Free Yes Yes Operating Temperature Range -25C ~ 85C Packing Method Rail Tape & Reel (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Internal Block Diagram 1.25V ENA 1A + DRV 6V Internal Voltage Reference UVLO VREF VIN UVLO 4.5V + 3V - + - VIN Timer + 2V OLR 2V BDIM Positive dimming polarity max. 2V min. 0.5V 0.45*Va + FAULT + Disable @ Striking VBURST BDIM Controller FAULT 0.25V 16 switching cycles @ Normal 2s @ Strike Gm Amp. with only sink current + 2V SCP Protection TSD 150 C VB OUTH + 2.3V - BCT/FT Input Control Logic VSS_STK Drivers VREF VS OUTL GND Output Control Logic max. 2V VSS_STK VSS_STK OSC Frequency sweep 4ms min. 0.5V RT FB 2.2V ADIM Va + + Error Amp. CMP Fstrike: Fnormal = 1.3:1 OLP1 20A 1V + + 1V 20A OLP3 OLP2 20A 1V + + 1V 20A OLP4 FAN7313 Rev. 01 Figure 1. Functional Block Diagram of FAN7313 (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 2 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Pin Assignments OLP3 20 OLP4 19 OLR 18 BCT/FT 17 RT 16 SCP 15 VS 14 OUTH 13 VB 12 VIN 11 FAN7313 1 OLP1 2 OLP2 3 CMP 4 FB 5 BDIM 6 ADIM 7 ENA 8 GND 9 OUTL 10 VREF FAN7313 Rev. 00 Figure 2. Pin Configuration (Top View) Pin Definitions Pin # 1 2 3 4 5 6 7 8 9 10 Name OLP1 OLP2 CMP FB BDIM ADIM ENA GND OUTL VREF Description Open-Lamp Protection 1 Open-Lamp Protection 2 Error Amplifier Output Error Amplifier Input Burst Dimming Input Analog Dimming Input Enable Input Ground Low-Side Driver Output Reference Voltage Pin # 11 12 13 14 15 16 17 18 19 20 Name VIN VB OUTH VS SCP RT BCT/FT OLR OLP4 OLP3 Description Supply Voltage Connected to VREF Internally High-Side Driver Output Connected to GND Internally Short-Circuit Protection Timing Resistor Burst Dimming Timing Capacitor/ Fault Signal Output Open-Lamp Regulation Open-Lamp Protection 4 Open-Lamp Protection 3 (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 3 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Absolute Maximum Ratings 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. For typical values, TA=25C and VIN=18V. For min./max. values, TA is the operating ambient temperature range with -25C TA 85C and 4.5V VIN 25.5V, unless otherwise specified. Symbol VIN TA TJ TSTG JA Characteristics Supply Voltage Operating Temperature Range Junction Temperature Storage Temperature Range Thermal Resistance Junction-to-Ambient Power Dissipation (1)(2) Value 25.5 -25 ~ 85 150 -65 ~ 150 70 1.8 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. Assume no ambient airflow. Pin Breakdown Voltage No 1 2 3 4 5 6 7 8 9 10 Name OLP1 OLP2 CMP FB BDIM ADIM ENA GND OUTL VREF Max. 10 10 4 10 10 10 10 6 10 Unit No 11 12 13 14 15 16 17 18 19 20 Name VIN VB OUTH VS SCP RT BCT/FT OLR OLP4 OLP3 Max. 25.5 10 6 10 Unit V V 10 10 10 (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 4 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Electrical Characteristics For typical values, TA=25C and VIN=18V. For min./max. values, TA is the operating ambient temperature range with -25C TA 85C and 4.5V VIN 18V, unless otherwise specified. Specifications to -25C ~ 85C are guaranteed by design based on final characterization results. Symbol V6 V6line V6load Characteristics 6V Regulation Voltage 6V Line Regulation 6V Load Regulation Test Condition Min. 5.76 0 Typ. 6.00 Max. 6.24 0.1 0.1 Unit V V V KHz KHz V V REFERENCE SECTION 0 OSCILLATOR SECTION (MAIN) fosc Vcth Vctl fstr Tstoff Vfbth Oscillation Frequency(4) CT High-Voltage(3) CT Low-Voltage(3) 103.7 104 Striking Frequency(4) Strike-Off Delay Time FB Threshold Voltage TA=25C, RT=27k RT=27k ADIM=1 125.7 124 0.35 130 130 4 0.45 318 318 2.0 0.5 4.0 360 59 2.150 2.150 -1.7 73 50 719 190 260 4.2 0.45 55 1.5 100 135.6 136 0.55 332.5 340 2.1 0.6 4.5 600 2.195 2.215 -1.2 100 -33 1300 300 400 4.5 0.60 120 2.5 150 kHz KHz ms V Hz Hz V V V mho dB V V A A A mho A A V V A mA A OSCILLATOR SECTION (BURST) foscb Vbcth Vbctl Vbctft Gm AV V2p2 Iss lsin lsur Gmolr Iolr Oscillation Frequency BCT/FT High-Voltage BCT/FT Low-Voltage BCT/FT Fault-Voltage Error Amplifier Transconductance(3) Error Amplifier Open-Loop Gain(3) 2.2V Regulation Voltage Soft-Start Current CMP Sink Current CMP Source Current OLR Transconductance(3) Open-Lamp Regulation Current TA=25C, BCT/FT=10nF, RT=27k 301.6 BCT/FT=10nF, RT=27k BCT/FT=10nF, RT=27k BCT/FT=10nF, RT=27k 296 1.9 0.4 3.5 ADIM=1~2.2V TA=25C, ADIM > 2.2V ADIM > 2.2V CMP=2V, FB < 0.45*ADIM CMP=1V, ADIM < FB CMP=1V, 0.45*ADIM < FB < ADIM Striking, OLR=2.5V Normal, OLR=2.5V 100 2.119 2.086 -3.2 44 -67 300 60 60 3.9 0.20 VIN=Vth-0.2 Not switching ENA=0 20 0.5 60 ERROR AMPLIFIER SECTION UNDER-VOLTAGE LOCK OUT SECTION Vth Vthhys Ist Iop Isb Start Threshold Voltage Start Threshold Voltage Hysterisis Start-up Current Operating Supply Current Stand-by Current Notes: 3. These parameters, although guranteed, are not 100% tesed in production. 4. These parameters, although guranteed, are tested in only EDS test. (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 5 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Electrical Characteristics (Continued) For typical values TA=25C and VIN=18V. For min./max. values, TA is the operating ambient temperature range with -25C TA 85C and 4.5V VIN 18V, unless otherwise specified. Specifications to -25C ~ 85C are guaranteed by design based on final characterization results. Symbol Characteristics PROTECTION SECTION Test Condition FB=OLP=2V Min. 1.9 2.1 0.95 2.85 1.9 Typ. 2.0 2.3 1.00 3.00 2.0 250 2.0 300 2.0 300 2.0 2.0 300 150 Max. 2.1 2.5 1.08 3.15 2.1 2.3 500 2.3 500 2.3 2.3 500 Unit V V V V V mV sec sec sec sec sec sec sec C Vscp Vcmpr Volp Vovp Volr Volrhy Tscp Tcmp Tolp Tolr TSD Vena Vdis Iena fnrmo fstro Vuvh Vuvl Venh Venl OUTH OUTL Idsurh Idsinh Idsurl Idsinl trh tfh trl tfl tdead Short-Circuit Protection Voltage CMP Protection Voltage Open-Lamp Protection Voltage Over-Voltage Protection Open-Lamp Regulation Voltage Opem-Lamp Regulation Hystersis(5) Short-Circuit Protection Delay CMP Protection Delay Open-Lamp Protection Delay Open-Lamp Regulation Delay Thermal Shutdown Enable State Input Voltage Disable State Input Voltage Enable Discharge Current Output Normal Frequency(6) Output Striking Frequency(6) High-Side Output Voltage Before Start-up Low-Side Output Voltage Before Start-up High-Side Output Voltage at Vena=0V Low-Side Output Voltage at Vena=0V High-Side Output Voltage Low-Side Output Voltage High-Side Output Drive Soure Current(5) (5) Striking, Foscb=300Hz Normal, Fosc=100kHz Striking, Foscb=300Hz Normal Fosc=100kHz Foscb=300Hz Striking, OLR=2.5V Normal, OLR=2.5V 1.7 100 1.7 100 1.7 1.7 100 ENABLE SECTION 2 0.2 VFB=1V, RT=27k VFB=0V, RT=27k 48 62 -0.5 -0.5 -0.5 -0.5 5.5 5.5 VIN=18V VIN=18V VIN=18V VIN=18V VIN=18V, Cload=4.7nF VIN=18V, Cload=4.7nF VIN=18V, Cload=4.7nF VIN=18V, Cload=4.7nF 6.0 6.0 530 530 530 530 100 100 100 100 430 1.0 50 65 5 0.7 4.0 52 68 0.5 0.5 0.5 0.5 6.5 6.5 V V A KHz KHz V V V V V V mA mA mA mA nsec nsec nsec nsec nsec OUTPUT SECTION High-Side Output Drive Sink Current(5) Low-Side Output Drive Soure Current Low-Side Output Drive Sink Current High-Side Output Rising Time(5) High-Side Output Falling Time(5) Low-Side Output Rising Time Dead Time (5) (5) Low-Side Output Falling Time(5) Notes: 5. These parameters, although guaranteed, are not 100% tesed in production. 6. Output frequency is half fosc. (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 6 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Timing Diagram CMP CT CLK T OUTH OUTL FAN7313 Rev. 01 Figure 3. Push-Pull PWM Control Waveforms (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 7 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Typical Application Circuits Application 19-inch LCD Monitor Lamps 4 Input Voltage 13V 1. Schematic F1 FUSE C1 220u 0 OLP3 OLP4 OLR 0 0 0 0 C2 1u 0 C3 1u 0 R28 33 R2 100k R3 100k C5 10n R1 27k M1 VS SCP VB BCT/FT OUTH OLP3 OLP4 OLR VIN RT R29 33 C25 2.2n TX1 1 HOT CN1 CCFL 2 COLD C24 2.2n 1 DN HOT 0 SN CN2 CCFL C22 330p D2 R4 1k 0 TX1 1 HOT SS_CMP IC1 FAN7313 OLP1 OLP2 GN DN C8 15p 2 COLD OUTL BDIM ADIM VREF GND ENA 0 C9 15p FB SN DN OLP1 D3 C11 12n 0 OLP2 CN5 1 2 3 4 5 6 7 8 9 10 ?? GN DN C12 33n R8 100k 0 R9 100k 0 HUFA76413DK8 C13 1u 0 BAV70 C10 12n 0 R5 1k 0 BAV70 R6 680 0 R7 680 0 R22 0 REF OLP1 OLP2 R13 10K R12 120k 100k C23 10n 0 R23 100k 0 1 HOT CN4 CCFL 2 COLD R10 10k C14 10n 0 R11 8.2k 0 CN3 CCFL C15 15p C16 15p 2 COLD OLP3 R20 10k C17 10n 0 OLP4 D4 D5 R14 1k 0 OLR C21 4.7n BAV70 R18 100k C18 12n 0 R15 1k 0 C19 12n 0 BAV70 R16 680 0 R17 680 0 R21 8.2k 0 C20 1n 0 R19 10k 0 FAN7313 Rev:00 Figure 4. Typical Application Circuit 2. Transformer Schematic Diagram Supported by Namyang electronics (http://www.namyangelec.co.kr). FAN7313 Rev. 00 Figure 5. Transformer Schematic 3. Core & Bobbin Core: EFD2124 Material: PL7 Bobbin: EFE2124 4. Winding Specification Pin No. 6 --> 4 3 --> 5 7 --> 9 Wire 1 UEW 0.35 1 UEW 0.35 1 UEW 0.04 Turns 19 19 2300 Inductance 50H 50H 826mH Leakage Inductance 1.2H 1.2H 260mH Remarks 1KHz, 1V 1KHz, 1V 1KHz, 1V (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 8 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC 5. BOM of the Application Circuit Part Ref. F1 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R28 R29 C2 C3 C5 C8 C9 Value Fuse 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 3216 J 3216 J 50V 2012 K 50V 2012 K 50V 1608 K 3KV 3216 3KV 3216 Part Ref. C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 D2 D3 D4 D5 C1 Value 12nF 12nF 33nF 1F 10nF 15pF 15pF 10nF 12nF 12nF 1nF 4.7nF 330pF 10nF 2.2nF 2.2nF Description / Vendor 50V 1608 K 50V 1608 K 50V 1608 K 50V 2012 K 50V 1608 K 3KV 3216 3KV 3216 50V 1608 K 50V 1608 K 50V 1608 K 50V 1608 K 50V 1608 K 50V 2012 K 50V 1608 K 50V 2012 K 50V 2012 K Fairchild Fairchild Fairchild Fairchild 25V 24V 3A Resistor (SMD) 27k 100k 100k 1k 1k 680 680 100k 100k 10k 8.2k 120k 10k 1k 1k 680 680 100k 10k 10k 8.2k 100k 100k 33 33 Capacitor (SMD) Diode / TR (SMD) BAV70 BAV70 BAV70 BAV70 220F MOSFET (SMD) Electrolytic Capacitor M1 HUFA 76413DK8 Wafer (SMD) Fairchild CN1 CN2 CN3 CN4 CN5 TX1 TX2 35001WR-02A 35001WR-02A 35001WR-02A 35001WR-02A 12505WR-10 Transformer (SMD) 1F 1F 10nF 15pF 15pF EFD2124 EFD2124 (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 9 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Package Dimensions 20-SOIC Dimensions are in millimeters unless otherwise noted. Symbol A A1 B C D E e H h L N 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 h x 45 A e B A1 C SEATING PLANE -C- LEAD COPLANARITY ccc C L January 2001, Rev. A (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 10 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC 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 2 E CMOS EnSigna FACT FACT Quiet Series (R) FAST FASTr FPS FRFET GlobalOptoisolator GTO HiSeC 2 IC i-Lo ImpliedDisconnect IntelliMAX ISOPLANAR LittleFET MICROCOUPLER MicroFET MicroPak MICROWIRE MSX MSXPro OCX OCXPro (R) OPTOLOGIC OPTOPLANAR PACMAN POP Power247 PowerEdge PowerSaver (R) PowerTrench (R) QFET QS QT Optoelectronics Quiet Series RapidConfigure RapidConnect ScalarPump SerDes (R) SILENT SWITCHER SMART START SPM Stealth SuperFET SuperSOT -3 SuperSOT -6 SuperSOT -8 SyncFET TCM TinyBoost TinyBuck (R) TinyLogic TINYOPTO TinyPower TinyPWM TruTranslation UHC (R) UltraFET UniFET VCX Wire Across the board. Around the world. Programmable Active Droop (R) The Power Franchise 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, 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. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information 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; 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. Rev. I20 Preliminary No Identification Needed Full Production Obsolete Not In Production (c) 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 11 www.fairchildsemi.com |
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