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参数资料
| 型号： | LXM1612-05-01 |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, XMA |
| 文件页数： | 5/5页 |
| 文件大小： | 118K |
| 代理商： | LXM1612-05-01 |
5V HIGHLY-INTEGRATED, DIGITAL DIMMING CCFL INVERTER MODULE
LXM1612-05-xx
PRODUCT DA T ABOOK 1996/1997
5
Copyright 1999
Rev. 0.4
7/99
P RELIMINAR Y D AT A S HEET
P
P A
A
A TENT
TENT
P
P ENDING
ENDING
RangeMAX
TM
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.
HOW RANGEMAX WORKS (continued)
HIGHLIGHTS
s
Integrated brightness control circuit includes a DC voltage
to pulse width converter that minimizes system design work
and system noise susceptibility. This provides a familiar
and convenient interface while reducing the potential for
externally induced noise which can cause lamp flicker.
s
RangeMAX inverter modules are designed to operate with
the burst frequency synchronized to the video frame rate.
This provides operation with no visible display disturbances
caused by beat frequencies between the lamps and video
frame rates. In this synchronous mode, the inverter burst
rate operates at twice the video refresh rate, well beyond
standard 50/60Hz video refresh rates where the eye can
perceive pulsing light.
s
In applications with no access to a vertical sync, an on-
board oscillator operates the inverter burst rate at 250Hz.
In this non-synchronous mode, minor display disturbances
can be found under certain video conditions. This perfor-
mance may be acceptable for many applications, but syn-
chronization must be used when no disturbance can be
tolerated.
s
A single input will accommodate negative and positive
vertical sync pulses at any pulse width.
s
Separate feedback loops for lamp current and open circuit
voltage regulation insure reliable strike under all operat-
ing conditions, automatic over-voltage prevention with bro-
ken or failed lamps, and accurate lamp current regulation.
RangeMAX and Direct Drive are trademarks of Linfinity Microelectronics Inc.
TYPICAL APPLICA TION
s The brightness control may be a voltage output DAC,
digital resistor or a simple 10k potentiometer. If
desired, an additional series resistor with the 10k
potentiometer can be used to set a higher minimum
brightness setting as shown in Figure 5. A 2.5V to 5V
Logic Level PWM signal from a micro-controller may
also be used as shown in Figure 5A.
s If synchronization to the video framerate is desired,
connect the vertical sync pulse from the system video
controller to the V
SYNC input.
If no video
synchronization is desired, connect V
SYNC to ground.
s If you need to turn the inverter ON/OFF remotely,
connect a 2.5V to 5V logic signal to the SLEEP input.
If remote ON/OFF is not needed, connect the SLEEP
input to V
IN1 or any other voltage greater than 2.5VDC.
s Connect V
HI to high voltage wire from the lamp.
Connect V
LO to the low voltage wire (wire with thinner
insulation). Never connect V
LO to circuit ground as
this will defeat lamp current regulation. If both lamp
wires have heavy high voltage insulation, connect the
longest wire to V
LO.
This wire is typically white.
FIGURE 5 — Potentiometer Brightness Control
FIGURE 5A — PWM Brightness Control
LXM1612-05-01
BRITE
V
HI
V
IN1
SLEEP
GND
CCFL
TUBE
5V
DC
10k
5V
0V
V
LO
V
SYNC
V
SYNC
R
BRITE RTN
DAC or
Pot
RangeMAX INVERTERS
Also available in Wide Input Voltage,
Dual Output LXM1621-01 and Quad
Output LXM1641-01 versions for
multiple lamp applications.
PWM Signal
from System
LXM1612-05-01
BRITE
0
P.W. 100% of period
2ms
P.W.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LXM1612-05-01B | 制造商:Microsemi Corporation 功能描述:LXM1612-05-01B - Tape and Reel |
| LXM1612-05-02 | 功能描述:MOD INVERTER CCFL DIGITAL SGL 5V RoHS:否 类别:光电元件 >> 反相器 系列:LXM1612-05-xx 标准包装:100 系列:- 输入电压:6.0V 输出:900V 类型:用于 CCFL 和 UV 灯的逆变器 尺寸/尺寸:2.34" L x 0.35" W x 0.35" H（59.5mm x 9mm x 8.9mm） 安装类型:底座安装 |
| LXM1612-05-03 | 功能描述:MOD INVERTER CCFL DIGITAL SGL 5V RoHS:否 类别:光电元件 >> 反相器 系列:LXM1612-05-xx 标准包装:100 系列:- 输入电压:6.0V 输出:900V 类型:用于 CCFL 和 UV 灯的逆变器 尺寸/尺寸:2.34" L x 0.35" W x 0.35" H（59.5mm x 9mm x 8.9mm） 安装类型:底座安装 |
| LXM1612-05-XX | 制造商:MICROSEMI 制造商全称:Microsemi Corporation 功能描述:5V Highly-Integrated, Digital Dimming CCFL Inverter Module |
| LXM1612-12-01 | 功能描述:MOD INVERTER CCFL DGTL SGL 12V RoHS:否 类别:光电元件 >> 反相器 系列:LXM1612-12-xx 标准包装:100 系列:- 输入电压:6.0V 输出:900V 类型:用于 CCFL 和 UV 灯的逆变器 尺寸/尺寸:2.34" L x 0.35" W x 0.35" H（59.5mm x 9mm x 8.9mm） 安装类型:底座安装 |
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