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FAN7317
LCD Backlight Inverter Drive IC
June 2011
FAN7317
LCD Backlight Inverter Drive IC
Features High-Efficiency Single-Stage Power Conversion Wide Input Voltage Range: 6V to 24V Backlight Lamp Ballast and Soft Dimming Minimal Required External Components Precision Voltage Reference Trimmed to 2% ZVS Full-Bridge Topology Soft-Start PWM Control at Fixed Frequency Burst Dimming Function Programmable Striking Frequency Open-Lamp Protection Open-Lamp Regulation Arc Protection Short-Lamp Protection CMP-High Protection High-FB Protection Thermal Shutdown 20-Pin SOIC
Applications LCD TV LCD Monitor
Description
The FAN7317 is a LCD backlight inverter drive IC that
controls P-N full-bridge topology by using the new
proprietary phase-shift method.
The FAN7317 provides a low-cost solution and reduces
external components by integrating full wave rectifiers for
open-lamp protection and regulation. The operating
voltage range of the FAN7317 is wide, so an external
regulator isn’t necessary to supply the voltage to the IC.
The FAN7317 provides various protections, such as
open-lamp regulation, open-lamp protection, arc
protection, short-lamp protection, CMP-high protection,
and FB-high protection, to increase the system reliability.
The FAN7317 provides burst dimming function and
analog dimming is possible, in a narrow range, by adding
some external components.
The FAN7317 is available in a 20-SOIC package.
Ordering Information
Part Number Package Operating Temperature Packing Method
FAN7317M 20-SOIC -25 to +85°C RAIL
FAN7317MX 20-SOIC -25 to +85°C TAPE & REEL All packages are lead free per JEDEC: J-STD-020B standard.
