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PDF LXM1610-01 Data sheet ( Hoja de datos )
| Número de pieza | LXM1610-01 | |
| Descripción | DIRECT DRIVE CCFL INVERTER MODULE | |
| Fabricantes | Microsemi Corporation | |
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T H E I N F I N I T E P O W E R O F I N N O VAT I O N
PATENTS PENDING
LIN D OC # : 1610
LXM1610-01
DIRECT DRIVE CCFL INVERTER MODULE
PRELIMINARY DATA SHEET
DESCRIPTION
Single Output Inverter Ideal For Por-
table Applications. The LXM1610 se-
ries of Direct DriveTM CCFL (Cold Cath-
ode Fluorescent Lamp) Inverter Modules
are specifically designed for driving LCD
backlight lamps. They excel in applica-
tions where critical parameters include
dimmability, high efficiency and reliable
fail-safe design in a small form factor.
These inverters are recommended for use
in panels with low-voltage insulation on
the lamp return wire.
Wide Input Voltage Range. The
modules convert unregulated DC volt-
age from the system battery or AC adapter
directly to high-frequency, high-voltage
waves required to ignite and operate
CCFL lamps. Input voltage can range
from 8 to 18 volts.
Direct Drive Technology. The mod-
ule design is based on a new Direct Drive
topology, which provides a number of
cost and performance advantages. The
LXM1610-01 series Direct Drive invert-
ers eliminate the classic resonant induc-
tor and capacitors, thus reducing cost and
allowing a 30% reduction in module size.
Fixed-Frequency Operation. Other
benefits of this new topology are fixed-
frequency operation and secondary-side
strike-voltage regulation. Strike-voltage
regulation minimizes corona discharge in
the output transformer and related cir-
cuitry, providing longer life and higher
reliability.
Dimming Features. The LXM1610
modules are equipped with a dimming
input that permits brightness control from
an external potentiometer or DC voltage.
In addition, the sleep input reduces mod-
ule power to a few microwatts in shut
down mode. All LXM1610 modules fea-
ture both output open and short-circuit
protection. The LXM1610 is fully
customizable (electronically and me-
chanically) to specific customer require-
ments.
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.
KEY FEATURES
s 8V to 18V Input Voltage Range
s 30% Smaller Than CS-ZVS Models
s Versatile Brightness Control Input
s MicroAmp SLEEP Mode
s Open And Shorted Lamp Protection
s 8.3mm Max. Module Height, 16mm Width
s Fixed Frequency Operation
A P P L I C AT I O N S
s Notebook And Sub-Notebook Computers
s Portable Instrumentation
s Automotive Displays
s Desktop Displays
s Airline Entertainment Centers
BENEFITS
s High Efficiency, Line Voltage Regulation And
Sleep Mode Extend Computer Battery Life
s Smooth, Wide-Range Brightness Control
Gives Your Product A High Quality Image
s Output Voltage Regulation Minimizes
Corona Discharge For Long Life And High
Reliability
PRODUCT HIGHLIGHT
DIRECT DRIVE OUTPUT ARCHITECTURE
VIN
SLEEP
BRITE
GND
ISNS
VSNS
Direct Drive architecture includes two load feedback
control loops to provide uncompromised CCFL ignition
and operation characteristics.
Lamp current is regulated in the CCFL return lead (ISNS
loop) to insure constant light output with changing lamp
parameters and power supply voltage. This also allows
accurate and repeatable brightness control. Dimming ratio
with the LX1610 analog dimming inverters is typically 5:1
when driving 12.1 to 15 inch LCD panels.
If no current flows in the CCFL return path because of
an unstruck or failed lamp, the inverter applies full strike
voltage potential. The output voltage feedback loop (VSNS)
takes control and regulates output voltage to 1650VRMS.
This insures the lamp will ignite under worst case tempera-
ture and aging conditions.
Because output voltage is actively regulated, it will
never exceed component and panel insulation ratings.
This prevents destructive corona discharge to insure long
term reliability of the system.
Copyright © 1999
Rev. 0.4 8/99
MODULE ORDER INFORMATION
LXM1610-01
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1
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| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet LXM1610-01.PDF ] | |
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