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參數資料
| 型號： | LX1692BIDW-TR |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩壓器 |
| 英文描述： | 0.1 A SWITCHING CONTROLLER, PDSO20 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOIC-20 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 300K |
| 代理商： | LX1692BIDW-TR |
LX1692B
PRODUCTION DATA SHEET
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2005
Rev. 1.1, 12/20/2006
WWW
.Microse
m
i
.CO
M
Full Bridge Resonant CCFL Controller
TM
DESCRIPTION
Microsemi’s LX1692B is a cost
reduced, third generation CCFL (Cold
Cathode Fluorescent Lamp) controller.
The integrated controller is optimized
to drive CCFL’s using resonant full
bridge inverter topology.
Resonant
full
bridge
topology
provides near sinusoidal waveforms
over a wide supply voltage range in
order to maximize the life of CCFL
lamps, control EMI emissions, and
maximize efficiency. This new archi-
tecture also provides a wide dimming
range.
The
LX1692B
includes
safety
features that limit the transformer
secondary voltage and protect against
fault conditions which include open
lamp, broken lamp, and short-circuit
faults.
The LX1692B regulates the CCFL
brightness
in
three
ways:
analog
dimming, digital dimming, or combined
analog and digital dimming methods
simultaneously to achieve the widest
dimming range (> 60 to 1).
The
LX1692B
can
accept
a
brightness control signal that is either
an analog voltage or a low frequency
PWM.
The
LX1692B
also
features
integrated gate drivers for the four
external power MOSFETs.
An integrated 4V LDO powers all
internal
control
circuitry
greatly
simplifying
supply
voltage
require-
ments.
The LX1692B is available in a 20-
Pin TSSOP and SOIC.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Protected by U.S. Patents: 5,615,093; 5,923,129; 5,930,121; 6,198,234; 7,112,929; Patents Pending
PRODUCT H I GHLIGHT
Part
C_R
I_R
C_BST
C_TO
BRITE_IN
EA_OUT
ISNS
D
C
B
A
DUAL
FET
DUAL
FET
V
SUPPLY
Ba
la
nc
er
LX1692B
KEY FEATUR ES
For Wide Voltage Range Inverter
Application (7V to 22V)
Low Stress to Transformers
Wide Dimming Range
Analog Dimming: >3 to 1
Digital Dimming : >20 to 1
Combined: >60 to 1
Programmable Burst Dimming
Frequency
Programmable Time Out
Protection
Fixed Operating Frequency
Open Lamp Voltage Protection,
Short Lamp Protection, Arc
Protection1
BENEFITS
Even Display Light Distribution
Longer Lamp Life with Optimized
Lamp Current Amplitude
Reduced Operating Voltage
Lowers Corona Discharge and
Prolongs Module Life
High “Nits / Watt” Efficiency
Makes Less Heat and Brighter
Displays
APPLICATIONS
LCD TV
LCD Monitor
PACKAGE ORDER INFO
PW
Plastic TSSOP
20-Pin
DW
Plastic SOIC
20-Pin
TA (°C)
RoHS Compliant / Pb-free
-20 to +85
LX1692BIPW
LX1692BIDW
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX1692BIPW-TR)
1
Arc protection is provided if the arcing level is enough to be trigged.
LL
XX
11
66
99
22
BB
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相關代理商/技術參數 |
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| LX1692BIPW | 制造商:Microsemi Corporation 功能描述:CCFL DRVR 22V 20TSSOP - Bulk |
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| LX1692F | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:TM Full Bridge Resonant CCFL Controller |
| LX1692FIDW | 制造商:Microsemi Corporation 功能描述:CCFL BACKLIGHT CONTROLLER IC - Bulk |
| LX1692FIDW-TR | 制造商:Microsemi Corporation 功能描述:CCFL BACKLIGHT CONTROLLER IC - Tape and Reel |
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