FAN7311_0712 FAIRCHILD [Fairchild Semiconductor], FAN7311_0712 Datasheet
FAN7311_0712
Manufacturer Part Number
FAN7311_0712
Description
LCD Backlight Inverter Drive IC
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
1.FAN7311_0712.pdf
(3 pages)
FAN7311 Rev. 1.0.7
© 2006 Fairchild Semiconductor Corporation
FAN7311
LCD Backlight Inverter Drive IC
Features
Applications
Ordering Information
Protected by U.S. Patent: 5,652,479; 7,158,390.
FAN7311G
FAN7311GX
FAN7311M
FAN7311MX
FAN7311N
High-Efficiency Single-Stage Power Conversion
Wide Input Voltage Range: 5V to 25.5V
Backlight Lamp Ballast and Soft Dimming
Reduced Number of Required External Components
Precision Voltage Reference Trimmed to 2%
ZVS Full-Bridge Topology
Soft-Start Capability
PWM Control at Fixed Frequency
Analog and Burst Dimming Function
Programmable Striking Frequency
Open-Lamp Protection
Open-Lamp Regulation
20-Pin SSOP/SOIC/DIP
LCD TV
LCD Monitor
Part Number
All packages are lead free per JEDEC: J-STD-020B standard.
Package
20-SSOP
20-SSOP
20-SOIC
20-SOIC
20-DIP
Operating Temperature Range
Description
The FAN7311 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 fluo-
rescent lamp (CCFL) and the transformer's characteris-
tics. FAN7311 uses a new patented phase-shift control.
-25°C to 85°C
20-SSOP
20-DIP
1
1
20-SOIC
Packing Method
Tape & Reel
Tape & Reel
1
Rail
Rail
Rail
December 2007
www.fairchildsemi.com
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FAN7311_0712 Summary of contents
Page 1
FAN7311 LCD Backlight Inverter Drive IC Features High-Efficiency Single-Stage Power Conversion Wide Input Voltage Range 25.5V Backlight Lamp Ballast and Soft Dimming Reduced Number of Required External Components Precision Voltage Reference Trimmed to 2% ZVS Full-Bridge Topology Soft-Start ...
Page 2
Typical Application Circuits Application 19-inch LCD Monitor 1. Schematic F1 FUSE C22 220μF 25V CN5 0 1 12V ON/OFF 10 R24 C1 0.22μF 10kΩ C28 0 12505WR-10 10nF μF ...
Page 3
Fairchild Semiconductor Corporation FAN7311 Rev. 1.0.7 15 www.fairchildsemi.com ...