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參數(shù)資料
| 型號： | LXM1640-01 |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | DIRECT DRIVE QUAD LAMP CCFL INVERTER MODULE |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, XMA26 |
| 文件頁數(shù)： | 5/5頁 |
| 文件大?。?/td> | 184K |
| 代理商： | LXM1640-01 |
D
IRECT
D
RIVE
Q
UAD
L
AMP
CCFL I
NVERTER
M
ODULE
LXM1640-01
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
5
Copyright 1998
Rev. 0.4 5/98
P
R E L I M I N A R Y
D
A T A
S
H E E T
DIRECT DRIVE OUTPUT ARCHITECTURE
Direct Drive architecture includes two load feedback control loops
to provide uncompromised CCFL ignition and operation character-
istics.
Lamp current is regulated in the CCFL return lead (I
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 LX1640 analog dimming
inverters is typically 6:1 when driving quad LCD lamp panels.
TYPICAL APPLICATIONS
LXM1640-01
BRITE
V
HI1
V
IN
SLEEP
GND
L
10.8V
DC
- 13.2V
DC
≤
10k
5V
0V
V
LO
5.0V
DC
V
HI2
V
HI3
V
HI4
L
L
L
FIGURE 4
— Potentiometer Brightness Control
FIGURE 3
— LXM1640 Block Diagram
(Only one lamp shown)
High Voltage
Transformer
I
SENSE
L
V
SENSE
SLEEP
Transformer
Driver
V
HI1
V
LO
BRITE
GND
Controller
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 (V
) takes control
and regulates output voltage to 1650V
. This insures lamps will
ignite under worst case temperature 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.
PRELIMINARY DATA - Information contained in this document is pre-production data, and is proprietary to LinFinity. It may
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相關(guān)代理商/技術(shù)參數(shù) |
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| LXM1641-01 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:DIGITAL DIMMING DUAL LAMP CCFL INVERTER MODULE |
| LXM1641-02 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:DIGITAL DIMMING DUAL LAMP CCFL INVERTER MODULE |
| LXM1641-03 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:DIGITAL DIMMING DUAL LAMP CCFL INVERTER MODULE |
| LXM1643-12-61 | 功能描述:MOD INVERTER CCFL QUAD 6W 12V RoHS:否 類別:光電元件 >> 反相器 系列:LXM1643-12-6x 標(biāo)準(zhǔn)包裝:100 系列:- 輸入電壓:6.0V 輸出:900V 類型:用于 CCFL 和 UV 燈的逆變器 尺寸/尺寸:2.34" L x 0.35" W x 0.35" H（59.5mm x 9mm x 8.9mm） 安裝類型:底座安裝 |
| LXM1643-12-62 | 功能描述:MODULE CCFL PROG INVERTER 12V RoHS:否 類別:光電元件 >> 反相器 系列:LXM1643-12-6x 標(biāo)準(zhǔn)包裝:100 系列:- 輸入電壓:6.0V 輸出:900V 類型:用于 CCFL 和 UV 燈的逆變器 尺寸/尺寸:2.34" L x 0.35" W x 0.35" H（59.5mm x 9mm x 8.9mm） 安裝類型:底座安裝 |
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