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| 型號： | LXM1620-02 |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, XMA |
| 文件頁數(shù)： | 5/5頁 |
| 文件大小： | 137K |
| 代理商： | LXM1620-02 |
DIRECT DRIVE DUAL LAMP CCFL INVERTER MODULE
LXM1620-xx
PRODUCT DA T ABOOK 1996/1997
5
Copyright 2000
Rev. 0.8
3/00
P RELIMINAR Y D ATA S HEET
DIRECT DRIVE OUTPUT ARCHITECTURE
Direct Drive architecture includes two load feedback control loops to
provide uncompromised CCFL ignition and operation characteristics.
Lamp current is regulated in the CCFL return lead (I
SNS 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 LX1620 analog dimming inverters is typically 6:1
when driving dual LCD lamp panels.
If no current flows in the CCFL return path because of an unstruck or
TYPICAL APPLICA TIONS
LXM1620-xx
BRITE
V
HI1
V
IN
SLEEP
GND
Lamp
1
10.8V
DC- 16VDC
10k
5V
0V
V
LO
5.0V
DC
V
HI2
Lamp
2
FIGURE 4 — Potentiometer Brightness Control
FIGURE 3 — LXM1620 Block Diagram
(Only one lamp shown)
High Voltage
Transformer
I
SENSE
LAMP
1
V
SENSE
SLEEP
Transformer
Driver
V
HI1
V
LO
BRITE
GND
Controller
failed lamp, the inverter applies full strike voltage potential. The output
voltage feedback loop (V
SNS) takes control and regulates output voltage to
1650V
RMS. This insures the lamp will ignite under worst case temperature
andagingconditions.
Because output voltage is actively regulated, it will never exceed
componentandpanelinsulationratings. Thispreventsdestructivecorona
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 not modified
in any way without the express written consent of LinFinity. Product referred to herein is offered in sample form only, and Linfinity reserves
the right to change or discontinue this proposed product at any time.
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| LXM162101 | 制造商:SCI 功能描述: |
| LXM1621-01 | 功能描述:MOD CCFL INVERTER DUAL DGTL DIM RoHS:否 類別:光電元件 >> 反相器 系列:LXM1621 標準包裝: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 |
| LXM1621-02 | 功能描述:MOD INVERTER CCFL DIM DUAL 6MA RoHS:否 類別:光電元件 >> 反相器 系列:LXM1621 標準包裝: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 |
| LXM1621-03 | 功能描述:MOD INVERTER CCFL DIM DUAL 6.5MA RoHS:否 類別:光電元件 >> 反相器 系列:LXM1621 標準包裝: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 |
| LXM1621-04 | 功能描述:MOD INVERTER CCFL DIM DUAL 5MA RoHS:否 類別:光電元件 >> 反相器 系列:LXM1621 標準包裝: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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