Document
A
M I C R O S E M I
C O M P A N Y
RangeMAX™
LXM1615-03-xx
3.6/5V 2W, DIGITAL DIMMING CCFL INVERTER MODULE
P RELIMINARY D ATA S HEET
RangeMAX™ Wide Range Dimming, Single Output Inverter. The LXM1615 series of Direct Drive CCFL (Cold Cathode Fluorescent Lamp) Inverter Modules are specifically designed for driving 8.4” and smaller LCD backlight lamps. They also target portable displays that rely on a single lithium-ion battery. LXM1615 modules provide the designer with a vastly superior display brightness range. This brightness range is achievable with virtually any LCD display. RangeMAX Digital Dimming Technique. Digital dimming provides flicker-free brightness control in any wide range (100:1+) dimming application. The modules are available with a dimming input that permits brightness control from either a DC voltage source or a PWM signal.
The resultant “burst drive” that energizes the lamp was designed specifically to ensure that no premature lamp degradation occurs (See the “How RangeMAX Works” section). VBATT Voltage Range. The modules convert the DC voltage from a single liion battery (3.2-4.2V) or a fixed 5V supply directly to high-frequency, highvoltage waves required to ignite and operate CCFL lamps. The Direct Drive Technology. modules design is based on a new Direct Drive topology, which provides a number of cost and performance advantages. Additional Features. Other benefits of this new topology are fixed-frequency operation, secondary-side strike-voltage regulation and both open and shorted lamp protection.
RangeMAX Wide Range Dimming VBATT – Single Li-Ion Cell Operation Or Fixed 5V Easy to Use Brightness Control Output Short-Circuit Protection and Automatic Strike-Voltage Regulation Fixed Frequency Operation
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PDA And Sub-Notebook Computers Portable Instrumentation Target 8.4” And Smaller Panels
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Smooth, Flicker Free 1-100% Full-Range Brightness Control Output Open Circuit Voltage Regulation Minimizes Corona Discharge For High Reliability Power Efficient, “Low Brightness” Capability Allows For Advanced Power Management
3 .2 - 4 .2 V
L i-Io n B a tte ry
V B AT T
PD As, D igital C am eras, Video C am corder, Instrum entation, H andheld G P S
F O R L O W E R V O L T AG E L AM P S
CCFL
260 - 380V RMS
F O R H IG H E R V O L T AG E L AM P S
V LAM P
Instrum entation, Sub N otebooks, D igital Picture Fram es
4 .5 - 5 .5 V
CCFL
350 - 515V RMS
LXM1615-03-XX
PART NUMBER
LXM1615-03-01 LXM1615-03-02 LXM1615-03-03 LXM1615-03-04
OUTPUT CONNECTOR
JST SM02(8.0)B-BHS-1-TB JST SM02B-BHSS-1-TB Honda QZ-19-A3MYL #02 JST SM02(4.0)B-BHS-1-TB
INVERTER MATES DIRECTLY TO PANEL CONNECTORS
BHR-03VS-1 BHSR-02VS-1 QZ-19-3F01 BHR-02VS-1
Copyright © 2000 Rev. 0.3d,2000-11-30
Microsemi
Linfinity Microelectronics Division 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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A
M I C R O S E M I
C O M P A N Y
RangeMAX™
LXM1615-03-xx
3.6/5V 2W, DIGITAL DIMMING CCFL INVERTER MODULE
P RELIMINARY D ATA S HEET
Input Supply Voltage (VBATT).............................................................................................................................. -0.3V to 6.5V Input Supply Voltage 3.3V (+3.3)....................................................................................................................... -0.3V to 5.5V Output Voltage, no load .......................................................................................................... Internally Limited to 1800VRMS Output Current .......................................................................................................................... 4.5mARMS (Internally Limited) Output Power..................................................................................................................................................................2.1W Input Signal Voltage (BRITE Input)..........................................................................................................-0.3V to 3.3V +0.3V Input Signal Voltage (SYNC) ...................................................................................................................-0.3V to 3.3V +0.3V Ambient Operating Temperature, zero airflow ..................................................................................................... 0°C to 70°C Storage Temperature Range ............................................................................................................................ -40°C to 85°C
Note: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified terminal.
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