FAN7314 Datasheet. Www.s Manuals.com. R1.0.4 Fairchild
User Manual: Datasheets FAN7314M.
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FAN7314 LCD Backlight Inverter Drive IC Features Description High-Efficiency Single-Stage Power Conversion The FAN7314 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 CCFL and the transformer's characteristics. Wide Input Voltage Range: 5V to 25.5V Back Light Lamp Ballast and Soft Dimming Reduces Number of Required External Components Precision Voltage Reference Trimmed to 2% ZVS Half-Bridge Topology Soft Start PWM Control at Fixed Frequency Analog and Burst Dimming Function Programmable Striking Frequency 20-SOIC Open-Lamp Protection Open-Lamp Regulation 20-Pin SOIC Ordering Information Part Number Package FAN7314M 20-SOIC FAN7314MX 20-SOIC Operating Temperature Range -25°C ~ 85°C Packing Method Rail Tape & Reel All packages are lead free per JEDEC J-SDD-020B standard. © 2006 Fairchild Semiconductor Corporation FAN7314 Rev. 1.0.4 www.fairchildsemi.com FAN7314 — LCD Backlight Inverter Drive IC October 2007 Application Lamps Input Voltage 19 inch LCD Monitor 4 13V 1. Schematic F1 C22 220μF FUSE C25 1μF 25V CN5 1 2 3 4 5 6 7 8 9 10 IC1 0 0 13V R6 OLP ON/OFF 12505WR-10 0 C1 C28 10nF 0 0 0 REF DIM(0~3.3V) 0 R2 56kΩ R4 22kΩ C2 R7 C21 10nF 1μF 0 PGND 0 REF OUTC ADIM OUTD BDIM CT EA_IN RT DN GN DN SP DP GP DP BCT 220pF R5 27kΩ C4 4.7nF C3 4.7nF C7 10μF LTM190EX TX1 FDS8958A J1 0Ω 1 R27 10kΩ 1 SN DN GN DN SP DP GP DP 0 C10 15pF 0 FDS8958A D4 BAV70 OLR 100kΩ R9 9.1kΩ OLR OLP R1 330kΩ 0 10kΩ Q1 KST2222 R13 1kΩ D6 BAV99 C30 10nF D7 BAV99 R17 1kΩ R16 1kΩ OLP1 R22 10kΩ 0 0 0 0 0 0 0 1 1 R23 10kΩ C12 15pF OLP4 R21 10kΩ C19 2.2nF 0 CN4 CCFL COLD C18 2.2nF OLP4 C20 2.2nF 0 OLR D10 BAW56 0 CN3 CCFL COLD HOT 2 C13 15pF OLP3 OLP3 HOT 2 OLP2 D11 BAW56 R20 10kΩ 0 FB 0 R14 100kΩ D1 BAW56 0 C14 10nF OLP2 TX2 0 C9 1μF CN2 CCFL COLD R15 FB REF R26 1kΩ COLD HOT 2 C11 15pF OLP1 RT R8 CN1 CCFL 2 0 0 HOT C8 10μF M2 0 C5 EA_OUT 0 R25 10kΩ 1μF VIN 0Ω R3 18kΩ 0 OUTA C6 GND SN OUTA 0.22μF S_S 0 RT 0 OUTB OUTB ENA R24 10kΩ 0 M1 82kΩ RT1 OLR C27 1μF 0.1μF C26 FAN7314 D3 BAV70 R12 1kΩ 0 C17 2.2nF 0 C29 10nF 0 R11 1kΩ 0 D8 BAV99 C15 10nF 0 0 D9 BAV99 R18 1kΩ 0 0 R19 1kΩ 0 FB FAN7314 Rev. 02 2. Transformer Schematic Diagram Supported by Namyang electronics (http://www.namyangelec.co.kr) FAN7314 Rev. 02 3. Core & Bobbin Core: EFD2124 Material: PL7 Bobbin: EFE2124 © 2006 Fairchild Semiconductor Corporation FAN7314 Rev. 1.0.4 www.fairchildsemi.com 10 FAN7314 — LCD Backlight Inverter Drive IC Typical Application Circuit FAN7314 — LCD Backlight Inverter Drive IC © 2006 Fairchild Semiconductor Corporation FAN7314 Rev. 1.0.4 www.fairchildsemi.com 14 www.s-manuals.com
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