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| 型號(hào)： | LX1691AIPW-TR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.1 A FLUORESCENT LIGHT CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | LEAD FREE, PLASTIC, TSSOP-16 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 295K |
| 代理商： | LX1691AIPW-TR |
Microsemi
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2003
Rev. 1.0, 8/31/2004
WWW
.Microse
m
i
.CO
M
LX1691A
Enhanced Multi-Mode CCFL Controller
PRODUCTION DATA SHEET
TM
DESCRIPTION
Mircrosemi’s
LX1691A
is
an
enhanced Direct Drive CCFL (Cold
Cathode Fluorescent Lamp) Controller.
Its architecture is based on the LX1691.
LX1691A based inverter modules can
be designed for virtually any CCFL
appliance
from
digital
cameras
and
PDA’s to big screen monitors and driver
viewable automotive displays.
New versatile dimming circuitry can
accept digital and analog control inputs
and
provides
six
different
dimming
modes that control both lamp current
amplitude and duty cycle, either simul-
taneously or separately.
Designers can
select normal or reverse polarity dimming
and precisely program mini-mum and
maximum lamp currents with resistors.
The LX1691A fault shutdown feature
is enhanced to include regulation and
shutdown for over voltage and over
current conditions.
The LX1691A includes the Microsemi
proven and patented strike method that
allows significant efficiency gains while
guaranteeing strong striking power at all
operating temperatures.
Our method sweeps strike frequency
smoothly up to the unloaded resonant
frequency of the lamp and high voltage
transformer.
This, coupled with the
LX1691A’s active high output voltage
regulation, produces just enough strike
voltage without generating unpredictable
high voltage spikes that cause arcing and
component failures. Competitive devices
that simply switch to a higher frequency
for striking do not have this “real time”
control over output voltage, and require
much more attention to transformer
design.
The LX1691A is optimized for wide
input voltage applications. It is identical
to the LX1691 except it has a guaranteed
minimum lamp strike interval of one
second to meet notebook and monitor
panel manufacturer’s specifications. The
LX1691A
includes
feed
forward
compensation that provides improved
regulation and transient response over an
7 – 24 volt input supply range.
The
LX1691A can also be used with a fixed
input
supply
and
will
produce
performance
equal
to
that
of
the
LX1691.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
Simultaneous Amplitude And
Duty Cycle Dimming Modes
Resistor programmable min and
max lamp currents
Digital Dimming Can Synch To
External Or Internal Clocks
120 ms Power On Delay
Open Or Shorted Lamp
Regulation & Shutdown
“On Chip” Full Wave Lamp
Current Rectifier
16 Pin TSSOP Package
Very Stable Oscillator with On-
Chip timing capacitor
Enhanced Digital Dimming
Resolution
Wide Input Voltage Capable
BENEFITS
Low Component Count / Module
Cost / And Size
High “Nits/Watt” Efficiency
Operates Directly From a Single
Li-Ion Cell
Industries Safest And Highest
Performing Strike Voltage
Generation (Patented)
Tight Operating Frequency
Tolerance For Easier System
Level RFI Control
PRODUCT H I GHLIGHT
2
0
VDC
T1
T2
BRITE_IN
DD_CLK
+3V
Traditional Analog
+
T1
T2
_
2
0
VDC
BRITE_IN
DD_CLK
External Digital
T = 512 / DD_CLK Frequency
+
_
2
0
VDC
T1
T2
BRITE_IN
DD_CLK
Direct PWM (Analog)
+
T1
T2
_
2
0
VDC
BRITE_IN
DD_CLK
+3V
Internal Digital
T = 512 / Lamp Frequency
+
_
T
Lamp Current (mA)
T
Four of Six Dimming Modes
PACKAGE ORDER INFO
TA (
°C)
MIN VDDP
MAX VDDP
PW
Plastic TSSOP
16-PIN
-40 to +85
2.8V
5.5V
LX1691AIPW
Pb-free
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1691AIPW-TR)
LL
XX
11
66
99
11
AA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LX1692BIPW-TR | 0.1 A SWITCHING CONTROLLER, PDSO20 |
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| LX1732CDUTR | 1 A SWITCHING REGULATOR, 135 kHz SWITCHING FREQ-MAX, PDSO8 |
| LX1732CDU-TR | 1 A SWITCHING REGULATOR, 135 kHz SWITCHING FREQ-MAX, PDSO8 |
| LX1741CDUT | 0.145 A SWITCHING CONTROLLER, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX1691B | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Enhanced Multi-Mode CCFL Controller |
| LX1691B_06 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Enhanced Multi-Mode CCFL Controller |
| LX1691BIPW | 功能描述:IC CTLR CCFL BACKLIGHT 16-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 |
| LX1691BIPW-TR | 制造商:Microsemi Corporation 功能描述:CCFL DRVR 5.5V 16TSSOP - Tape and Reel 制造商:Microsemi Corporation 功能描述:IC CTLR CCFL BACKLIGHT 16-TSSOP |
| LX1691CPW | 功能描述:IC CTRLR CCFL BACKLIGHT 16TSSOP 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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