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PDF LTM170E6-L04 Data sheet ( Hoja de datos )
| Número de pieza | LTM170E6-L04 | |
| Descripción | TFT LCD | |
| Fabricantes | Samsung | |
| Logotipo |  |
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Product Information
ISSUE DATE : 2003-08-08
MODEL
: LTM170E6-L04
www.DataSheet.net/
Note : This Product information is subject to change after 3 months of issuing date
Prepared by AMLCD Application Engineering Group
Samsung Electronics Co . , LTD.
Doc . No
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Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
1.2 ELECTRICAL ABSOLUTE RATINGS
(1) TFT LCD Module
Item
Power Supply Voltage
Symbol
VDD
NOTE (1) Within Ta ( 25 ± 2 ° C)
Min.
Vss-0.5
Max.
6.5
(Vss = GND = 0 V)
Unit Note
V (1)
(2) BACK-LIGHT UNIT
Item
Lamp Current
Lamp Frequency
Symbol
IL
fL
Min.
2.0
40
Max.
7.0
80
(Ta = 25 ± 2° C)
Unit.
Note
mArms
(1)(2)
kHz (1)
NOTE
(1) Permanent damage to the device may occur if the maximum values are exceeded.
Functional operation should be restricted to the conditions described under
normal operating conditions.
(2) Specified values are for a single lamp.
(Refer to the Note (1) in the page 11 for further information).
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Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page 
3.2 BACK-LIGHT UNIT
The back-light system is an edge - lighting type with 2 dual CCFTs ( Cold Cathode
Fluorescent Tube ). The characteristics of two dual lamps are shown in the following tables.
Item
Lamp Current
Lamp Voltage
Lamp Frequency
Startup Voltage
Symbol
IL
VL
fL
Vs
Min.
3.0
-
50
-
Ta=25 ± 2° C
Typ. Max. Unit
6.5 7.0 mArms
650 - Vrms
- 60 kHz
0℃:1,800
- 25℃:1,500 Vrms
Note
(1)
(2)
(3)
Note) The waveform of the inverter output voltage must be area symmetric and the design
of the inverter must have specifications for the modularized lamp.
The performance of the back-light, for example life time or brightness, is much influenced by the
characteristics of the DC-AC inverter for the lamp. 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 that a poor lighting caused by the
mismatch of the back-light and the inverter(miss lighting, flicker, etc.) never occur. When you confirm
it, the module should be operated in the same condition as it is installed in your instrument.
Note (1) Lamp current is measured with a current meter forwww.DataSheet.net/ high frequency as shown below.
Refer to the block diagram of the back-light unit in the next page for more information.
Specified values are for a single lamp.
LCD Module
Hot (Pink)
Cold (White)
Hot (Blue)
Cold (Black)
Hot (Pink)
Cold (White)
Hot (Blue)
Cold (Black)
A
Inverter
(SK1700A)
(2) Lamp frequency, which may produce interference with horizontal synchronous frequency which
may cause line flow on the display. Therefore lamp frequency should be detached from the
horizontal synchronous frequency and its harmonics as far as possible in order to avoid
interference.
(3) If an inverter has shutdown function, it should keep its output for over 1 second even if the
lamp connector is open. Otherwise the lamps may not be turned on.
(4) Because the inverter uses high voltage, please disconnect it from the power before
assembling or disassembling.
Doc . No
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Datasheet pdf - http://www.DataSheet4U.co.kr/
11 Page | ||
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