參數(shù)資料
型號(hào)： LM1812N
英文描述： SONAR CIRCUIT|BIPOLAR|DIP|18PIN|PLASTIC
中文描述： 聲納電路|雙極|雙酯| 18PIN |塑料
文件頁(yè)數(shù)： 6/24頁(yè)
文件大?。?/td> 491K
代理商： LM1812N
LM181E1-H2MN
Liquid Crystal Display
Product Specification
Ver 0.3 J uly 5, 2000 Page 6/ 24
3. Electrical Specifications
3-1. Electrical Characteristics
The LM181E1-H2MN requires two power inputs. One is employed to power the LCD electronics and to
drive the TFT array and liquid crystal. The other input which powers the CCFL, is typically generated by
an inverter. The inverter is an external unit to the LCD.
Table 2. ELECTRICAL CHARACTERISTICS
Values
Typ.
Parameter
Symbol
Min.
Max.
Units
Notes
MODULE:
Power Supply Input Voltage
Power Supply Input Current
Power Consumption
LAMP
Operating Voltage
Operating Current
Established Starting Voltage
at 25
at 0
Operating Frequency
Discharge Stabilization Time
Power Consumption(4CCFL’s)
Life Time
Note)The design of the inverter must have specifications for the lamp in LCD Assembly.
The performance of the Lamp in LCM, for example life time or brightness, is extremely influenced by the
characteristics of the DC-AC Inverter. So all the parameters of an inverter should be carefully designed
so as not to produce too much leakage current from high-voltage output of the inverter.
When you design or order the inverter, please make sure unwanted lighting caused by the mismatch of
the lamp and the inverter(no lighting, flicker, etc) never occurs. When you confirm it, the LCD Assembly
should be operated in the same condition as installed in your instrument
.
Notes:1. The current draw and power consumption specified is for 12.0 Vdc at 25
and fv at 60Hz.
(at 8-gray pattern displayed)
2. The variance of the voltage is
±
10%.
3. The output voltage at the transformer in the inverter must be high considering to the loss of the
ballast capacitor in the inverter.
4. The output of the inverter must have symmetrical(negative and positive) voltage waveform and
symmetrical current waveform.(Unsymmetrical ratio is less than 10%) Please do not use the
inverter which has unsymmetrical voltage and unsymmetrical current and spike wave.
Lamp frequency may produce interference with horizontal synchronous frequency and as a result
this may cause beat on the display. Therefore lamp frequency shall be as away as possible from
the horizontal synchronous frequency and from its harmonics in order to prevent interference.
5. The lamp power consumption shown above does not include loss of external inverter.
6. Let’s define the brightness of the lamp after being lighted for 5 minutes as 100%.
T
s
is the time required for the brightness of the center of the lamp to be not less than 95%.
7. The life time is determined as the time at which brightness of lamp is 50% compare to that of
initial value at the typical lamp current on condition of continuous operating at 25
±
2
.
IV
AA
I
CC
P
c
V
BL
I
BL
f
BL
T
S
P
BL
11.2
-
-
690(9mA)
3.0
-
-
30
-
-
20,000
12.0
0.55
6.6
705(8mA)
8.0
-
60
-
22.56
-
12.6
0.9
10.8
940(3mA)
9.0
1250
1550
80
3
-
-
V(DC)
A
Watts
V
RMS
mA
V
RMS
V
RMS
kHz
Minutes
Watts
Hrs
1
1
2
3
4
6
5
7
Alpha Point Ltd.
P.O. Box 41
00751 Helsinki, Finland
http://www.
alpha.fi
Tel.: +
358-9-34 64 34 1
Fax: +
358-9-34 64 34 2
相關(guān)PDF資料
PDF描述
LM181E06 SPECIFICATION FOR APPROVAL
LM181E1-H2MN 18 SXGA TFT LCD
LM181 INFRARED LAMP LED
LM185-1.2 Micropower Voltage References(1.2V基準(zhǔn)電壓源)
LM185-2.5(中文) Micropower Voltage References(2.5V基準(zhǔn)電壓源)
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