LXM1611-01 View Datasheet(PDF) - Microsemi Corporation
Part Name
Description
Manufacturer
LXM1611-01 Datasheet PDF : 5 Pages
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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
Not Recommended For New Design
RangeMAXTM
LXM1611-01
DIGITAL DIMMING CCFL INVERTER MODULE
Production Data Sheet
DESCRIPTION
KEY FEATURES
RangeMAX Wide Range Dimming, Single
The modules are equipped with a dimming
Output Inverter. The LXM1611 series of input that permits brightness control from an
Direct DriveTM CCFL (Cold Cathode Fluores- external potentiometer or DC voltage source.
cent Lamp) Inverter Modules are specifically The resultant "burst drive" that energizes the
designed for driving LCD backlight lamps. lamp was designed specifically to ensure that
Similar to the LXM1610, the LXM1611 ex- no premature lamp degradation occurs. (See
cels in applications where critical parameters "How RangeMAX Works" Section)
include very wide range dimmability, high
Wide Input Voltage Range. The mod-
efficiency and reliable fail-safe design in a ules convert unregulated DC voltage from the
small form factor.
system battery or AC adapter directly to high-
Unlike the LXM1610 or any traditional frequency, high-voltage waves required to
dimming CCFL inverters, the LXM1611 pro- ignite and operate CCFL lamps.
vides the designer a vastly superior display
Direct Drive Technology. The module
brightness range. 100:1+ brightness range design is based on a new Direct Drive topol-
is achievable with virtually any LCD display. ogy, which provides a number of cost and
Our wide range dimming provides excep- performance advantages. The LXM1611-01
tional display readability at less than 1% of series Direct Drive inverters eliminate the clas-
full brightness, allowing both power savings sic resonant inductor and capacitors, thus
and low ambient light operating capability reducing cost and allowing a 30% reduction
(i.e. "night readable").
in module size.
The LXM1611 is recommended for use in
Additional Features. Other benefits of
panels with low-voltage insulation on the this new topology are fixed-frequency op-
lamp return wire.
eration and secondary-side strike-voltage
RangeMAX Digital Dimming Tech- regulation.
nique. Digital dimming provides flicker-
Strike-voltage regulation minimizes corona
free brightness control in any wide-range discharge in the output transformer and re-
dimming application. Dimming ratios greater lated circuitry, providing longer life and higher
than 100:1 can be achieved. Incorporation reliability. All LXM1611 modules feature both
of a video synchronization feature allows open and shorted lamp protection.
wide ratio dimming without the display dis-
The LXM1611 is fully customizable (elec-
turbances and interference seen with com- tronically and mechanically) to specific cus-
petitive products.
tomer requirements.
NOTE: For current data & package dimensions, visit our web site: http://www.linfinity.com.
Protected By U.S. Patents: 5,923,129; 5,930,121; Patents Pending
s RangeMAX Wide Range Dimming
s 8V to 18V Input Voltage Range
s 30% Smaller Than CS-ZVS Models
s Easy To Use Brightness Control
s MicroAmp SLEEP Mode
s Output Short-Circuit Protection And
Automatic Strike-Voltage Regulation
s 7.3mm Max. Module Height, 16mm Module
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 Desktop Displays
s Low Ambient Light Conditions (i.e. Aircraft
Cabins, Automobile)
BENEFITS
s High Efficiency And Sleep Mode Feature
Extends Computer Battery Life
s Smooth, Flicker Free 1-100% Full-Range
Brightness Control Gives Your Product A
High Quality Image
s Output Open Circuit Voltage Regulation
Minimizes Corona Discharge For Long Life
And High Reliability
s Power Efficient, "Low Brightness" Capability
Allows For Advanced Power Management
PRODUCT HIGHLIGHT
RANGEMAX VS. ANALOG DIMMING
5
Standard Analog
Dimming Inverter
4
3
LinFinity's
RangeMAX
2
1
0
30
45
60
75
90
105
Light Output (Nits)
s RangeMAX technology allows the designer to operate
in a lower "brightness" and therefore at lower "power
consumption" than can be reached using traditional
analog dimming inverters.
s Dotted line indicates area where panel variations and
parasitics will impact minimum light level with analog
dimming.
s Data presented for a RangeMAX inverter driving a
13.3" LCD with a 1.2 Nit to 120 Nit brightness range.
The minimum power levels were 0.4 watts
(RangeMAX) vs. 2.1 watts (analog dimming) for a
power consumption savings of 1.7 watts.
MODULE ORDER INFORMATION
LXM1611-01
LINFINITY MICROELECTRONICS INC.
Copyright © 1999
Rev. 1.0 1/05
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
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