Product Summary

The FAN7317B is a LCD backlight inverter drive IC that controls P-N full-bridge topology using a new proprietyphase-shift method. The FAN7317B provides a low-cost solution and reduces external components by integrating full wave rectifiers foropen-lamp protection and regulation (patent pending). The operating voltage range of the FAN7317B is wide, soan external regulator isn’t necessary to supply the voltageto the IC. The FAN7317B provides protections such as open-lampregulation, open-lamp protection,and short-lampprotection to increase the system reliability. The FAN7317B provides a burst-dimming function and analog dimming is possible, in a narrow range, by adding external components. The FAN7317B is available in a 20-pin SOIC package. The applications include LCD TV and LCD Monitor.

Parametrics

FAN7317B absolute maximum ratings: (1)OperatingTemperature: -25 to +85°C; (2)Package: 20-Pin Small Outline Integrated Circuit (SOIC); (3)PackingMethod: Rail; (4)Input Voltage Range: 13±10%.

Features

FAN7317B features: (1)High-Efficiency, Single-Stage Power Conversion; (2)Wide Input Voltage Range: 6V to 28V; (3)Backlight Lamp Ballast and Soft Dimming; (4)Minimal Required External Components; (5)Precision Voltage Reference Trimmed to 2%; (6)ZVS Full-Bridge Topology; (7)Soft-Start; (8)PWM Control at Fixed Frequency; (9)Burst Dimming Function; (10)Dynamic Contrast Ratio Function; (11)Programmable Striking Frequency; (12)Open-Lamp Protection (OLP); (13)Open-Lamp Regulation (OLR); (14)Short-Lamp Protection (SLP); (15)Thermal Shutdown (TSD); (16)20-Pin SOIC.

Diagrams

FAN7317B block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
FAN7317BM
FAN7317BM
Fairchild Semiconductor
LCD Drivers LCD Backlight IC
Data Sheet
Negotiable 
FAN7317BMX
FAN7317BMX
Fairchild Semiconductor
LCD Drivers LCD Backlight IC
Data Sheet
0-1: $0.90
1-25: $0.70
25-100: $0.64
100-250: $0.55