參數(shù)資料
型號(hào)： LX1688IPW-TR
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 穩(wěn)壓器
英文描述： FLUORESCENT LIGHT CONTROLLER, 70 kHz SWITCHING FREQ-MAX, PDSO24
封裝： ROHS COMPLIANT, PLASTIC, TSSOP-24
文件頁(yè)數(shù)： 4/16頁(yè)
文件大小： 484K
代理商： LX1688IPW-TR
RangeMAX
LX1688
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 12
Copyright
2001
Rev. 1.2, 2006-03-09
WWW
.Microse
m
i
.CO
M
Multiple Lamp CCFL Controller
TM
TH EORY OF O PERAT ION
Multiple Lamp Sync
The figure 3 shows the sync signals (PHA_SYNC
and RMP_RST) timing relationship to Gate signal
AOUT, for the master module. AOUT and
PHA_SYNC running at the same frequency and
RMP_RST signal has the twice frequency.
Figure 3- Sync signals-Timing relationship to AOUT
CH2= AOUT(Master), CH3=PHA_SYNC,
CH4=RMP_RST
Strike Mode
Every IC includes a separate strike controller that
operates from the primary oscillator; therefore the strike
controller is independent of the sync signals. The
following oscilloscope waveform picture is taken when
the master module is on striking mode and the salves are
on running mode.
Figure 5- Master is in striking mode while slaves
are in running mode CH2=
AOUT(Master), CH3=AOUT(Slave1),
CH4=AOUT(Slave2)
Output Drivers
The figure 4 shows the gate signals of the modules, which are operating, in running mode during digital dimming with 95%
duty cycle. As shown all signals are synchronized. The difference between each signal’s duty cycles is because each lamp has
an independent control loop.
AA
PP
LL
IICC
AA
TT
IIOO
NN
SS
Figure 4- Output drivers of both Master
and Slaves.
CH2=AOUT(Master),
CH3=AOUT(Slave1),
CH4=AOUT(Slave2)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LX1689 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Third Generation CCFL Controller
LX1689_06 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Third Generation CCFL Controller
LX1689CPW 功能描述:IC CTRLR CCFL BACKLIGHT 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 照明，鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01
LX1689CPW-TR 制造商:Microsemi Corporation 功能描述:CCFL DRVR 28V 20TSSOP - Tape and Reel 制造商:Microsemi Corporation 功能描述:DIRECT DRIVE CONTROLLER
LX1689IPW 功能描述:IC CTLR CCFL BACKLIGHT 20-TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 照明，鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01
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