LXM1623-12-6x Dual Programmable CCFL Inverter Module RELIMIN

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LXM1623-12-6x Dual Programmable CCFL Inverter Module RELIMIN

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INTEGRATED
LXM1623-12-6x
Dual Programmable CCFL Inverter Module
RELIMINARY ATASHEET
DESCRIPTION
FEATURES
Microsemi
LXM1623-12-6x Dual Output Direct DriveCCFL (Cold Cathode Fluorescent Lamp) Inverter Module specifically designed driving backlight lamps. ideal driving typical 10.4" panels. LXM1623 modules provide designer with vastly superior display brightness range. This brightness range achievable with virtually display. modules available with dimming input that permits brightness control from either voltage source signal external Potentiometer. maximum output current externally programmable over range steps allow inverter properly match wide array panel lamp current specifications. RangeMAX Digital Dimming Technique provides flicker-free brightness control wide range typically (50:1+) dimming application.
resultant "burst drive" that energizes lamp designed specifically ensure that premature lamp degradation occurs, while allowing significant power savings lower levels. modules convert voltage from system battery adapter directly high frequency, high-voltage waves required ignite operate CCFL lamps. input inverter also available (LXM1623-05-6x), well versions (LXM1623-xx-4x) driving smaller lower voltage panels. modules design based Microsemi's LX1689 backlight controller, which provides number cost performance advantages controller's high level integration. Other benefits this topology stable fixed-frequency operation, secondary-side strike-voltage regulation both open/shorted lamp protection with fault timeout.
Externally Programmable Maximum Output Current Easy Brightness Control RangeMAX Wide Range Dimming Output Open/Short-Circuit Protection Automatic StrikeVoltage Regulation Timeout Fixed Frequency Operation Rated From 70°C APPLICATIONS High Brightness Displays Portable Instrumentation Desktop Displays Industrial Display Controls
BENEFITS
Smooth, Flicker Free 2%100% Full-Range Brightness Control Programmable output current allows inverter mate with wide variety panel's specifications Output Open Circuit Voltage Regulation Minimizes Corona Discharge High Reliability
IMPORTANT: most current data, consult MICROSEMI's website: http://www.microsemi.com
PRODUCT HIGHLIGHT
LXM1623-12-6X
PACKAGE ORDER INFO
PART NUMBER LXM1623-12-61 LXM1623-12-62 LXM1623-12-63
Copyright 2002 Rev. 0.3a, 2002-09-03
OUTPUT CONNECTOR SM02(8.0)B-BHS-1-TB SM02B-BHSS-1-TB Honda QZ-19-A3MYL
INVERTER MATES DIRECTLY PANEL CONNECTORS BHR-03VS-1 BHSR-02VS-1 HONDA QZ-19-3F01
Page
Microsemi
Integrated Products 11861 Western Avenue, Garden Grove, 92841, 714-898-8121, Fax: 714-893-2570
INTEGRATED
LXM1623-12-6x
Dual Programmable CCFL Inverter Module
RELIMINARY ATASHEET
ABSOLUTE MAXIMUM RATINGS (NOTE Input Signal Voltage (VIN1).-0.3V Input Power Output Voltage, load Internally Limited 1800VRMS Output Current .9.5mARMS (Internally Limited) Output Power (each output) 6.0W Input Signal Voltage SLEEP Input) -0.3V VIN1 Input Signal Voltage (BRITE) .-0.3V 5.5V Ambient Operating Temperature, zero airflow.-20°C 70°C Operating Relative Humidity, non-condensing Storage Temperature Range.-40°C 85°C
Note Exceeding these ratings could cause damage device. voltages with respect Ground. Currents positive into, negative specified terminal.
Microsemi
RECOMMENDED OPERATING CONDITIONS (R.C.) This module been designed operate over wide range input output conditions. However, best efficiency performance will obtained module operated under condition listed `R.C.' column. Min. Max. columns indicate values beyond which inverter, although operational, will function optimally. Parameter Input Supply Voltage Range (Fully Regulated Lamp Current) Input Supply Voltage Range (Functional) Output Power (each output) Linear BRITE Control Input Voltage Range Lamp Operating Voltage Lamp Current (Full Brightness) Operating Ambient Temperature Range Symbol VIN1 VBRT_ADJ VLAMP IOLAMP Recommended Operating Conditions R.C. 10.8 10.2 13.2 13.8 Units VRMS mARMS
ELECTRICAL CHARACTERISTICS Unless otherwise specified, following specifications apply over recommended operating condition ambient temperature 25°C except where otherwise noted. Parameter
OUTPUT CHARACTERISTICS Full Bright Lamp Current (each output) Full Bright Lamp Current (each output) Full Bright Lamp Current (each output) Full Bright Lamp Current (each output) Output Current Lamp Lamp Deviation Min. Average Lamp Current (each output) Lamp Start Voltage Operating Frequency Burst Frequency Copyright 2002 Rev. 0.3a, 2002-09-03 IL(MAX) IL(MAX) IL(MAX) IL(MAX) ILL%DEV IL(MIN) fBURST VBRT_ADJ 2.0VDC, SLEEP 2.0V, VIN1 12VDC ISET1 Ground, ISET2 Ground VBRT_ADJ 2.0VDC, SLEEP 2.0V, VIN1 12VDC ISET1 Ground, ISET2 Open VBRT_ADJ 2.0VDC, SLEEP 2.0V, VIN1 12VDC ISET1 Open, ISET2 Ground VBRT_ADJ 2.0VDC, SLEEP 2.0V, VIN1 12VDC ISET1 Open, ISET2 Open VBRT_ADJ 2.0VDC, SLEEP 2.0V, VIN1 12VDC ISET1 Open, ISET2 Open VBRT_ADJ 0.5VDC, SLEEP 2.0V, VIN1 12VDC ISET1 ISET2 Ground -20°C 70°C, VIN1 10.8VDC VBRT_ADJ 2.5VDC, SLEEP 2.0V, VIN1 Output Burst Frequency 0.30 1400 1650 mARMS mARMS
Symbol
Test Conditions
LXM1623-12-6x
Units
ELECTRICALS ELECTRICALS
mARMS mARMS mARMS VRMS
Microsemi
Integrated Products 11861 Western Avenue, Garden Grove, 92841, 714-898-8121, Fax: 714-893-2570
Page
INTEGRATED
LXM1623-12-6x
Dual Programmable CCFL Inverter Module
RELIMINARY ATASHEET
ELECTRICAL CHARACTERISTICS (CONTINUED) Unless otherwise specified, following specifications apply over recommended operating condition ambient temperature 25°C except where otherwise noted. Parameter
BRITE INPUT Input Current Minimum Input Max. Lamp Current Maximum Input Min. Lamp Current SLEEP INPUT Mode SLEEP Mode SET1,2 INPUT SET1,2 Threshold Input Current POWER CHARACTERISTICS Sleep Current Current Efficiency IIN(MIN) IIN(RUN) VIN1 12VDC, SLEEP 0.8V VIN1 12VDC, SLEEP 2.0V, ISET1 Open ISET2 Ground, VLAMP 600VRMS VIN1 12VDC, SLEEP 2.0V, ISET1 Open ISET2 Ground, VLAMP 600VRMS µADC mADC ISET VSET 0.4V -300 IBRT VBRT_ADJ VBRT_ADJ VBRT_ADJ 0VDC VBRT_ADJ 3VDC IO(LAMP) Maximum Lamp Current IO(LAMP) Minimum Lamp Current -300 2.05 µADC µADC
Microsemi
Symbol
Test Conditions
LXM1623-12-6x
Units
VSLEEP VSLEEP
-0.3
VIN1
FUNCTIONAL DESCRIPTION CONN CN1-1 CN1-2 CN1-3 CN1-4 CN1-5 CN1-6 CN1-7 CN1-8 CN2-1 CN3-1 CN2-2 CN3-2 CN2-3 CN3-3 CN2-1 CN3-1
Copyright 2002 Rev. 0.3a, 2002-09-03
DESCRIPTION Main Input Power Supply (10.8V VIN1 13.2V) Power Supply Return ON/OFF Control. SLEEP OFF, SLEEP 2.0V Brightness Control (0.5V 2.0VDC). 2.0VDC gives maximum lamp current. SET1 Connecting this ground decreases output current (see Table SET2 Connecting this ground decreases output current (see Table
(Molex 53261-0890) Mates with 51021-0800 housing, 50079-8100 pins. Mates with LX9501 input cable assembly VIN1
SLEEP
BRITE SET1 SET2
ELECTRICALS ELECTRICALS
CN2, LXM1623-12-61 (JST SM02(8.0)B-BHS-1-TB SM02B-BHSS-1-TB) High voltage connection high Side lamp. Connect lamp terminal with shortest lead length. connect Ground. Connection side lamp. Connect lamp terminal with longer lead length. connect Ground High voltage connection high side lamp. Connect lamp terminal with shortest lead length. connect Ground. Connection side lamp. Connect lamp terminal with longer lead length. connect Ground
CN2, LXM1623-12-63 (Honda QZ-19-A3MYL #02)
Microsemi
Integrated Products 11861 Western Avenue, Garden Grove, 92841, 714-898-8121, Fax: 714-893-2570
Page
INTEGRATED
LXM1623-12-6x
Dual Programmable CCFL Inverter Module
RELIMINARY ATASHEET
TABLE OUTPUT CURRENT SETTINGS SET1 (Pin Open* Open* Ground Ground SET2 (Pin Open* Ground Open* Ground Nominal Output Current 8.0mA 7.0mA 6.0mA 5.0mA PHYSICAL DIMENSIONS LXM1623-12-6X
ROUNDED OUNTING ±.08 DIA. HEAD CLEARANCE BOTH HOLES
SM02(8.0)B-BHS-1-TB (JST)
Microsemi
driven logic signal should open collector open drain only, voltage source.
165m
151m
.118
CN-2
0.827in
CN-3
SM02B-BHSS-1-TB (JST)
.708
.551
Honda QZ-19-A3MYL
OUNTING ±.08 DIA.
0.0395
0.295in
7.5m
arning
weight:
tolerances 0.2m 4-40 recom ended ounting screws
High Voltage Present high side Transform Output Connectors
SIMPLIFIED BLOCK DIAGRAM
Controller BRIT Comparator Ramp
High Voltage Transform
Transform Driver
PACKAGE DATA PACKAGE DATA
SENSE
SENSE SENSE
Copyright 2002 Rev. 0.3a, 2002-09-03
Microsemi
Integrated Products 11861 Western Avenue, Garden Grove, 92841, 714-898-8121, Fax: 714-893-2570
LAMP
Page
INTEGRATED
LXM1623-12-6x
Dual Programmable CCFL Inverter Module
RELIMINARY ATASHEET
TYPICAL APPLICATION
0.45V 2.0V 1.8K LXM1623-12-6x BRITE
Microsemi
CCFL TUBE
brightness control voltage output other voltage source, digital manual pot. inverter contains internal pull-up bias pot, 1.8K resistor lower threshold voltage. 3.3V Logic Level signal from micro-controller also used shown Figure need turn inverter ON/OFF remotely, connect logic signal SLEEP input.
SLEEP
Figure Brightness Control (Output current maximum)
Connect high voltage wire from lamp. Connect voltage wire (wire with thinner insulation). Never connect circuit ground this will defeat lamp current regulation. both lamp wires have heavy high voltage insulation, connect longest wire VLO. This wire typically white. SET1 SET2 (see Figure inputs select desired maximum output current. Using these pins combination allows inverter match wide variety panels from different manufactures. Generally best lamp lifetime correlates with driving CCFL manufactures nominal current setting. However SET1 SET2 inputs allow user flexibility adjust current maximum allowable output current increase panel brightness expense some reduced lamp life. Although pins designed such that just leaving them open grounding them that needed output current, they also actively set. Using open collector open drain logic signal will allow reduce lamp current situations where greater range required, example nighttime situations. conjunction with light sensor other timer panel could higher brightness (maximum output current) daytime illumination lower brightness (minimum typical output current) nighttime. Since ratio factor both burst duty cycle peak output current, using this technique effective ratio increased greater than burst duty cycle alone. Conversely inputs could used overdrive lamp temporarily facilitate faster lamp warm initial lamp turn course possible degradation lamp life from such practices users responsibility since lamps designed overdriven. inverter built fault timeout function. output open (lamp disconnected broken) shorted inverter will attempt strike lamp several seconds. After about seconds without success inverter will shutdown. order restart inverter necessary toggle sleep input cycle VIN1 input supply
Signal from System
BRITE
LXM1643-12-6x 10us 125uS
P.W. 100% period
Figure Brightness Control
BRITE
CCFL TUBE
LXM1623-12-6x SLEEP
APPLICATION APPLICATION
5.0mARMS 6.0mARMS 7.0mARMS 8.0mARMS L=GND; H=Open Figure Output Current (SET1 SET2 Inputs)
Copyright 2002 Rev. 0.3a, 2002-09-03
Microsemi
Integrated Products 11861 Western Avenue, Garden Grove, 92841, 714-898-8121, Fax: 714-893-2570
Page
INTEGRATED
LXM1623-12-6x
Dual Programmable CCFL Inverter Module
RELIMINARY ATASHEET
NOTES
Microsemi
NOTES NOTES
Preliminary Data Information contained this document pre-production data proprietary Microsemi. modified without express written consent Microsemi. Product referred herein offered sample form only Microsemi reserves right change discontinue this proposed product time.
Copyright 2002 Rev. 0.3a, 2002-09-03
Microsemi
Integrated Products 11861 Western Avenue, Garden Grove, 92841, 714-898-8121, Fax: 714-893-2570
Page

LXM1623-12-6x Dual Programmable CCFL Inverter Module RELIMIN

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