FAN7313

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 www.DataSheet4U.com „ 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 -25°C ~ 85°C Packing Method Rail Tape & Reel © 2006 Fairchild Semiconductor Corporation FAN7313 Rev. 1.0.0 www.fairchildsemi.com FAN7313 LCD Backlight Inverter Drive IC Internal Block Diagram 1.25V ENA 1μ A + DRV 6V Internal Voltage Reference UVLO VREF VIN UVLO 4.5V + + - VIN www.DataSheet4U.com 3V Timer + 16 switching cycles @ Normal 2s @ Strike Gm Amp. with only sink current Disable @ Striking VBURST BDIM Co...