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PDF LXMG1645-12-53 Data sheet ( Hoja de datos )
| Número de pieza | LXMG1645-12-53 | |
| Descripción | CCFL Programmable Inverter Module | |
| Fabricantes | Microsemi Corporation | |
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RangeMax™ StayLIT™ LXMG1645-24-53
TM ® 24V Quad 5W CCFL Inverter Module
PRODUCTION DATA SHEET
DESCRIPTION
The LXMG1645-24-53 is a Quad 5W significant power savings at lower dim
Output CCFL (Cold Cathode Fluorescent levels.
wwwL.DamatapS)heet4IUn.vneetrter Module specifically The inverter also has a dedicated
designed for driving NEC NL12876BC26- FAIL pin that indicates an open/shorted
25 LCD panel or similar quad lamp panels. lamp condition. In addition when only
The inverter includes a dimming input one or two lamps on either side sustain a
that permits brightness control from a fault the lamps on the other side will
PWM signal. RangeMAX™ Digital remain in normal operation. This mode
Dimming Technique provides flicker-free of operation during lamp(s) failure is
brightness control in any wide range called StayLit™ since the panel is able to
(typically 50:1+) dimming application. still remain on although at reduced
The module converts a DC voltage brightness.
from the system battery or AC adapter The module’s design is based on
directly to high frequency, high-voltage Microsemi’s LX6512 backlight
waves required to ignite and operate CCFL controller, which provides a number of
lamps. The resultant “burst drive” that cost and performance advantages due to
energizes the lamp was designed the controller’s high level of integration.
specifically to ensure that no premature Other benefits of this new topology
lamp degradation occurs, while allowing are stable fixed-frequency operation and
secondary-side strike-voltage regulation.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Protected By U.S. Patents: 5,923,129; 5,930,121; 6,198,234; Patents Pending
PRODUCT HIGHLIGHT
Lamp
Fault
HI Signal
CN1
KEY FEATURES
StayLIT™ Redundancy
PWM Brightness Control
RangeMAX™ Wide Range
Dimming
Output Short-Circuit Protection
and Automatic Strike-Voltage
Regulation
Fixed Frequency Operation
Rated From -30 to 80°C
UL 60950 Pending
RoHS Compliant
APPLICATIONS
High Brightness Displays
Desktop Displays
Medical Monitors
BENEFITS
Smooth, Flicker Free 2%-
100% Optical Brightness
Range
HI
CN3
CN2
HI
PWM DIMMING INPUT
MICROSEMI
HI
CN4
W
CN5
W
PART NUMBER
LXMG1645-24-53
PACKAGE ORDER INFO
OUTPUT CONNECTORS
Four JST SM02(8.0)B-BHS-1-TB(LF)(SN) or Yeon Ho 20015WR-05A00
INVERTER MATES DIRECTLY
TO PANEL CONNECTORS
JST BHR-03VS-1
Copyright © 2010
Rev. 1.0, 2010-10-13
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
1 page  
RangeMax™ StayLIT™ LXMG1645-24-53
TM ® 24V Quad 5W CCFL Inverter Module
PRODUCTION DATA SHEET
STAYLIT FUNCTION TABLE
FAULT Definition: (F)
1. OPEN:(O)
2. SHORT1:(S1)
3. SHORT2:(S2)
4. SHORT3:(S3)
5. ARCING:
Lamp is not connected ( either high side wire open or return wire open)
Lamp high side wire is shorted to lamp return side wire
Lamp high side wire is shorted to ground
Lamp return wire is shorted to GND
Lamp High side wire is creating the arcing path after the inverter is enabled.
F means either O , S 1 , S 2 , O R S 3
N = Connected lamp and normal operation
Lamp
1
N
N
N
N
N
N
N
N
F
F
F
F
F
F
F
F
Fault Conditions
Lamp
2
N
N
Lamp
3
N
N
NF
NF
FN
FN
FF
FF
NN
NN
NF
NF
FN
FN
FF
FF
Lamp
4
N
F
N
F
N
F
N
F
N
F
N
F
N
F
N
F
Inverter Operation
ALL ON
With Exception of
Affected Lamps for
‘O, S1, S2’ Fault
Conditions, All
Unaffected Lamps
Are ON, Including
Affected Lamp in a
Single S3 Fault
Condition.
An S1 Fault Will
Typically Reduce
Opposing
Operational Lamp
Current By 43%
ALL OFF
Fault Exists Prior to
Turn-on
Action After TSTRIKE
FAIL SIGNAL
Fault Occurs During
Ignition
Action After TSTRIKE
Open Drain to LOW
Open Drain to LOW
Fault Occurs During
Run Mode
Action After TD_FLT
Open Drain to LOW
VIN
ENABLE
FAIL
TPWR_ON
TSTRIKE
TD_FLT
FAIL OCCUR
Copyright © 2010
Rev. 1.0, 2010-10-13
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LXMG1645-12-53.PDF ] | |
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