LXM1617-12-62 [MICROSEMI]
12V 6W CCFL Programmable Inverter Module; 12V 6W CCFL可编程的逆变器模块
| 型号： | LXM1617-12-62 |
| 厂家： | 
Microsemi |
| 描述： | 12V 6W CCFL Programmable Inverter Module |
| 文件： | 总6页 (文件大小：181K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PanelMatch™
LXM1617-12-6x
12V 6W CCFL Programmable Inverter Module
I N T E G R A T E D P R O D U C T S
P
RODUCTION DATASHEET
KEY FEATURES
DESCRIPTION
The LXM1617-12-6x is
a
Single
The resultant “burst drive” that
Externally Programmable
Maximum Output Current
Easy to Use Brightness Control
Fixed Frequency Operation
Output Short-Circuit Protection
and Automatic Strike-Voltage
Regulation and Timeout
RangeMAX Wide Range
Dimming
Output 6W Direct Drive™ CCFL (Cold energizes the lamp was designed
Cathode Fluorescent Lamp) Inverter specifically to ensure that no premature
Module specifically designed for driving lamp degradation occurs, while allowing
LCD backlight lamps. It is ideal for significant power savings at lower dim
driving typical 12.1” to 15” TFT panels.
LXM1617 modules provide the
designer with a vastly superior display the system battery or AC adapter directly
brightness range. This brightness range is to high frequency, high-voltage waves
achievable with virtually any LCD display. required to ignite and operate CCFL
The maximum output current is lamps. A 5V input inverter is also
externally programmable over a range of 5 available (LXM1617-05-6x).
levels.
The modules convert DC voltage from
Rated From -20 to 70°C
UL60950 E175910
APPLICATIONS
Notebook And Sub-Notebook
Portable Instrumentation
Desktop Displays
to 8mA in 1mA steps to allow the inverter
The modules design is based on
to properly match to a wide array of LCD Microsemi’s new LX1689 backlight
panel lamp current specifications. The controller, which provides a number of
modules include a dimming input that cost and performance advantages due to
permits brightness control from a dc the controller’s high level of integration.
Industrial Display Controls
BENEFITS
voltage source, a PWM signal or an
external potentiometer.
Other benefits of this new topology
are stable fixed-frequency operation,
Smooth, Flicker Free 2%-100%
Full-Range Brightness Control
Programmable output current
allows inverter to mate with a
wide variety of LCD panel’s
specifications
RangeMAX
Digital
Dimming secondary-side strike-voltage regulation
Technique provides flicker-free brightness and both open/shorted lamp protection
control in any wide range typically (50:1+) with fault timeout.
dimming application.
Output Open Circuit Voltage
Regulation Minimizes Corona
Discharge For High Reliability
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
Protected by U.S. Patents: 5,923, 129; 5,930,121; 6,198,234; Patents Pending
PRODUCT HIGHLIGHT
U
N IV E R S A L
D
IM M IN G IN P U T
" P W M " , V D C
,
O R P O T E N T IO M E T E R
PWM
Signal
DC Voltage
Source
Potentiometer
W
S
8
E L E C T A B L E
M
A X IM U M
O
U P U T
C
U R R E N T
5
M
A
T O
M
A R M S
PACKAGE ORDER INFO
I
NVERTER
M
ATES
DIRECTLY
P
ART
N
UMBER
OUTPUT CONNECTOR
TO ANEL
P
CONNECTORS
LXM1617-12-61
LXM1617-12-62
LXM1617-12-63
JST SM02(8.0)B-BHS-1-TB or Yeon Ho 20015WR-05A00
JST SM02B-BHSS-1-TB or Yeon Ho 35001WR-02A00
Honda QZ-19-A3MYL #02
JST BHR-03VS-1
JST BHSR-02VS-1
Honda QZ-19-3F01
Copyright © 2002
Rev. 1.0b, 2005-01-14
Microsemi
Page 1
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
PanelMatch™
LXM1617-12-6x
12V 6W CCFL Programmable Inverter Module
I N T E G R A T E D P R O D U C T S
P
RODUCTION DATASHEET
ABSOLUTE MAXIMUM RATINGS (NOTE 1)
Input Signal Voltage (VIN1).....................................................................................................................................-0.3V to 15V
Input Power.................................................................................................................................................................... 8.25W
Output Voltage, no load ............................................................................................................ Internally Limited to 1800VRMS
Output Current .............................................................................................................................10mARMS (Internally Limited)
Output Power ................................................................................................................................................................... 6.0W
Input Signal Voltage (
Input)..................................................................................................................... -0.3V to VIN1
SLEEP
Input Signal Voltage (BRITE) ...............................................................................................................................-0.3V to 5.5V
Ambient Operating Temperature, zero airflow.....................................................................................................-20°C to 70°C
Storage Temperature Range...............................................................................................................................-40°C to 85°C
Note 1: Exceeding these ratings could cause damage to the device. All voltages are with respect to Ground. Currents are positive into, negative out of specified
terminal.
RECOMMENDED OPERATING CONDITIONS (R.C.)
This module has been designed to operate over a wide range of input and output conditions. However, best efficiency and performance
will be obtained if the module is operated under the condition listed in the ‘R.C.’ column. Min. and Max. columns indicate values beyond
which the inverter, although operational, will not function optimally.
Recommended Operating Conditions
Parameter
Symbol
Units
Min
R.C.
Max
Input Supply Voltage Range (Fully Regulated
Lamp Current)
Input Supply Voltage Range (Functional)
Output Power
Linear BRITE Control Input Voltage Range
Lamp Operating Voltage
Lamp Current (Full Brightness)
Operating Ambient Temperature Range
10.8
10.2
12
12
13.2
VIN1
V
13.8
6.0
2.0
735*
8
PO
VBRT_ADJ
VLAMP
IOLAMP
TA
W
V
VRMS
mARMS
°C
0.5
545
5
640
-20
70
* Total output power must not exceed 6W. Higher voltage lamps may require maximum output current to be set lower than 8mARMS
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of
25°C except where otherwise noted.
LXM1617-12-6x
Parameter
Symbol
Test Conditions
Units
Min
Typ
Max
OUTPUT PIN CHARACTERISTICS
`
VBRT_ADJ > 2.0VDC
,
> 2.0V, VIN1 = 12VDC
SLEEP
ISET1 = Ground, ISET2 = Ground
VBRT_ADJ > 2.0VDC
Full Bright Lamp Current
IL(MAX)
IL(MAX)
IL(MAX)
IL(MAX)
IL(MIN)
4.4
5.4
6.4
7.4
5
6
5.6
6.6
7.6
8.6
mARMS
mARMS
mARMS
mARMS
mARMS
,
> 2.0V, VIN1 = 12VDC
> 2.0V, VIN1 = 12VDC
> 2.0V, VIN1 = 12VDC
> 2.0V, VIN1 = 12VDC
SLEEP
ISET1 = Ground, ISET2 = Open
VBRT_ADJ > 2.0VDC
Full Bright Lamp Current
Full Bright Lamp Current
,
SLEEP
ISET1 = Open, ISET2 = Ground
VBRT_ADJ > 2.0VDC
7
,
SLEEP
ISET1 = Open, ISET2 = Open
VBRT_ADJ ≤0.5VDC
Full Bright Lamp Current
8
Min. Average Lamp Current
,
SLEEP
ISET1 = ISET2 = Ground
-20°C < TA < 70°C, VIN1 > 10.8VDC
0.30
Lamp Start Voltage
Operating Frequency
Burst Frequency
VLS
fO
1400
57
1650
60
VRMS
kHz
Hz
VBRT_ADJ = 2.5VDC > 2.0V, VIN1 = 12V
,
63
SLEEP
fBURST
Output Burst Frequency
222
234
246
Copyright © 2002
Rev. 1.0b, 2005-01-14
Microsemi
Page 2
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
PanelMatch™
LXM1617-12-6x
12V 6W CCFL Programmable Inverter Module
I N T E G R A T E D P R O D U C T S
P
RODUCTION DATASHEET
ELECTRICAL CHARACTERISTICS (CONTINUED)
Unless otherwise specified, the following specifications apply over the recommended operating condition and ambient temperature of
25°C except where otherwise noted.
LXM1617-12-6x
Parameter
Symbol
Test Conditions
Units
Min
Typ
Max
BRITE INPUT
`
VBRT_ADJ = 0VDC
VBRT_ADJ = 3VDC
-300
50
µADC
µADC
Input Current
IBRT
Minimum Input for Max. Lamp Current VBRT_ADJ IO(LAMP) = Maximum Lamp Current
Maximum Input for Min. Lamp Current VBRT_ADJ IO(LAMP) = Minimum Lamp Current
SLEEP INPUT
2.0
0.5
2.05
VDC
VDC
0.4
`
`
`
VSLEEP
VSLEEP
RUN Mode
2.0
5
VDC
VDC
SLEEP Mode
-0.3
0.8
SET1,2 INPUT
SET1,2 Low Threshold
Input Current
VL
0.4
50
V
ISET
VSET ≤ 0.4V
-300
µA
POWER CHARACTERISTICS
Sleep Current
IIN(MIN)
IRUN
VIN1 = 12VDC
VIN1 = 12VDC
,
,
< 0.8V
0.0
8
µADC
SLEEP
SLEEP
≥ 2.0V, ISET1 = Open
Run Current
Efficiency
428
mADC
ISET2 = Ground, VLAMP = 640VRMS
VIN1 = 12VDC ≥ 2.0V, ISET1 = Open
,
SLEEP
ISET2 = Ground, VLAMP = 640VRMS
88
%
η
FUNCTIONAL PIN DESCRIPTION
CONN
P
IN
DESCRIPTION
CN1 (Molex 53261-0890) Mates with 51021-0800 housing, 50079-8100 pins. Mates with LX9501 input cable assembly
CN1-1
VIN1
Main Input Power Supply (10.8V < VIN1 < 13.2V)
Power Supply Return
CN1-2
CN1-3
CN1-4
GND
CN1-5
ON/OFF Control. (0V <
< 0.8 = OFF,
>= 2.0V = ON
SLEEP
SLEEP
BRITE
SET1
SLEEP
CN1-6
CN1-7
CN1-8
Brightness Control (0.5V to 2.0VDC). 2.0VDC gives maximum lamp current.
SET1 MSB Connecting this pin to ground decreases the output current (see Table 1)
SET2 LSB Connecting this pin to ground decreases the output current (see Table 1)
SET2
CN2 for LXM1617-12-61 and -62
(JST SM02(8.0)B-BHS-1-TB | Yeon Ho 20015WR-05A00 or SM02B-BHSS-1-TB | Yeon Ho 35001WR-02A00)
High voltage connection to high Side of lamp. Connect to lamp terminal with shortest lead length.
DO NOT connect to Ground.
CN2-1
CN2-2
VHI
Connection to low side of lamp. Connect to lamp terminal with longer lead length.
DO NOT connect to Ground
VLO
CN2 for LXM1617-12-63 (Honda QZ-19-A3MYL#02)
High voltage connection to high side of lamp. Connect to lamp terminal with shortest lead length.
DO NOT connect to Ground.
CN2-3
CN2-1
VHI
Connection to low side of lamp. Connect to lamp terminal with longer lead length.
DO NOT connect to Ground
VLO
Copyright © 2002
Rev. 1.0b, 2005-01-14
Microsemi
Integrated Products
Page 3
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
PanelMatch™
LXM1617-12-6x
12V 6W CCFL Programmable Inverter Module
I N T E G R A T E D P R O D U C T S
P
RODUCTION DATASHEET
TABLE 1
OUTPUT CURRENT SETTINGS
SET1
(Pin 7)
Open*
Open*
Ground
Ground
SET2
(Pin 8)
Open*
Ground
Open*
Nominal Output Current
8.0mA
7.0mA
6.0mA
5.0mA
Ground
* If driven by a logic signal it should be open collector or open drain only, not a voltage source.
PHYSICAL DIMENSIONS
L X M1617- 1 2-6X
100mm
3.94in.
85mm
3.35in
M
OUNTING
HOLE
2.44MM ±.08 DIA
.
X
CN1
16mm
0.63in.
CN2
12.5mm
0.492in
9mm ±0.2
0.354in.
X
74mm ±0.2mm
Warning
G
ROUNDED
MOUNTING
2.91in
3.5mm
0.138in.
H
OLE 2.44MM ±.08 DIA
.
High Voltage Present at
high side of Transformer
and Output Connector
11mm
0.433in.
1.0mm
0.0394in.
7.5mm Max
0.295in.
PCB tolerances ± 0.2mm , M2 or 2-56 recommended mounting screws
Weight: (9g) typ.
R1.0
All Dimensions are in millimeters, inches for reference only.
SIMPLIFIED BLOCK DIAGRAM
+3V
10K
High Voltage
Transformer
Controller
Comparator
VHI
VBRITE
+
VIN1
0.5 -
2VDC
Ramp
Transformer
Driver
-
Ramp
Gen
+3V
OCSENSE
10K
SET1
SET2
+3V
OVSENSE
10K
ISENSE
VLO
LXM1617 family
Copyright © 2002
Rev. 1.0b, 2005-01-14
Microsemi
Page 4
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
PanelMatch™
LXM1617-12-6x
12V 6W CCFL Programmable Inverter Module
I N T E G R A T E D P R O D U C T S
P
RODUCTION DATASHEET
TYPICAL APPLICATION
12V
VIN1
The brightness control may be a voltage output DAC or
other voltage source, a digital pot or 20K manual pot. The
inverter contains an internal 10K pull-up to 3V to bias the
pot add a 1.8K resistor to set the lower threshold voltage.
A 3.3V Logic Level PWM signal from a micro-controller
may also be used as shown in Figure 1A.
DAC or
Pot
BRITE
0.45V
to
2.0V
20K
VHI
LXM1617-12-6x
CCFL
TUBE
1.8K
If you need to turn the inverter ON/OFF remotely, connect
to TTL logic signal to the
input.
SLEEP
SLEEP
SET1
VLO
Connect VHI to high voltage wire from the lamp. Connect
SET2
NC
GND
V
LO to the low voltage wire (wire with thinner insulation).
NC
Never connect VLO to circuit ground as this will defeat
lamp current regulation. If both lamp wires have heavy
high voltage insulation, connect the longest wire to VLO
.
This wire is typically white.
Figure 1 – Brightness Control
(Output current set to maximum)
Use the SET1 and SET2 (see Figure 2) inputs to select the
desired maximum output current. Using these two pins in
combination allows the inverter to match a wide variety of
panels from different manufactures. Generally the best
lamp lifetime correlates with driving the CCFL at the
manufactures nominal current setting. However the SET1
and SET2 inputs allow the user the flexibility to adjust the
current to the maximum allowable output current to
increase panel brightness at the expense of some reduced
lamp life.
PWM Signal
from System
BRITE
P.W.
LXM1617-12-6x
10µs to 125µS
Although the SET pins are designed such that just leaving
them open or grounding them is all that is needed to set the
output current, they can also be actively set. Using a open
collector or open drain logic signal will allow you to
reduce the lamp current for situations where greater dim
range is required, as an example in nighttime situations. In
conjunction with a light sensor or other timer the panel
could be set to higher brightness (maximum output
current) for daytime illumination and lower brightness
(minimum or typical output current) at nighttime. Since
the dim ratio is a factor of both the burst duty cycle and the
peak output current, using this technique the effective dim
ratio can be increased greater than the burst duty cycle
alone. Conversely the SET inputs could be used to
overdrive the lamp temporarily to facilitate faster lamp
warm up at initial lamp turn on. Of course any possible
degradation on lamp life from such practices is the users
responsibility since not all lamps are designed to be
overdriven.
0 < P.W. < 100% of period
Figure 1A – PWM Brightness Control
12V
VIN1
BRITE
VHI
CCFL
TUBE
LXM1617-12-6x
SLEEP
SET1
VLO
SET2
GND
L
L
H
H
L
H
L
5.0mARMS
6.0mARMS
7.0mARMS
8.0mARMS
The inverter has a built in fault timeout function. If the
output is open (lamp disconnected or broken) or shorted
the inverter will attempt to strike the lamp for several
seconds. After about 2 to 4 seconds without success the
inverter will shutdown. In order to restart the inverter it is
necessary to toggle the sleep input or cycle the VIN1 input
supply.
H
L=GND; H=Open
Figure 2 – Max Output Current
(SET1 and SET2 Inputs)
Copyright © 2002
Rev. 1.0b, 2005-01-14
Microsemi
Page 5
Integrated Products
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
PanelMatch™
LXM1617-12-6x
12V 6W CCFL Programmable Inverter Module
I N T E G R A T E D P R O D U C T S
P
RODUCTION DATASHEET
NOTES
PRODUCTION DATA – Information contained in this document is proprietary to
Microsemi and is current as of publication date. This document may not be modified in
any way without the express written consent of Microsemi. Product processing does not
necessarily include testing of all parameters. Microsemi reserves the right to change the
configuration and performance of the product and to discontinue product at any time.
Copyright © 2002
Rev. 1.0b, 2005-01-14
Microsemi
Integrated Products
Page 6
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
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