LQ104S1DG61 Sharp Electronics, LQ104S1DG61 Datasheet - Page 10

• Manufacturer Part Number: LQ104S1DG61
• Manufacturer: Sharp Electronics

Specifications of LQ104S1DG61

• Lead Free Status / Rohs Status: Compliant

7-2. Backlight driving
[Note1] Lamp current is measured with current meter for high frequency as shown below.
[Note2] Referential data per one CCFT by calculation. (I L × VL)
[Note3] Lamp frequency may produce interference with horizontal synchronous frequency,and this may cause beat
[Note4] The open output voltage of the inverter shall be maintained for more than 1s; otherwise
[Note5] Since lamp is consumables, the life time written above is referential value and it is not guaranteed in this
The characteristics of single lamp are shown in the following table.
(It is usually required to measure under the following condition.
The backlight system is an edge-lighting type with double CCFT (Cold Cathode Fluorescent Tube).
Lamp Life time
Parameter
Lamp current
Lamp power consumption
Lamp frequency
Kick-off voltage
condition:IL=6.0mA,Ta=25℃±2℃,FL=60kHz.)
（When using it outdoors and ON/OFF is repeated frequently）
Above value is applicable when lamp (the long side of LCD module) is placed horizontally. (Landscape position)
The data don’t include loss at inverter. ( IL=6.0mArms)
on the display. Therefore lamp frequency shall be detached as much as possible from the horizontal
synchronous frequency and from the harmonics of horizontal synchronous to avoid interference.
specification sheet by SHARP.
(Lamp lifetime may vary if lamp is in portrait position due to the change of mercury density inside the lamp.)
In case of operating under lower temp environment, the lamp exhaustion is accelerated and the brightness
becomes lower.
(Continuous operating for around 1 month under lower temp condition may reduce the brightness to half
of the original brightness.)
In case of operating under lower temp environment, the lamp exhaustion is accelerated and the brightness
becomes lower.(Continuous operating for around 1 month under lower temp condition may reduce the
brightness to half of the original brightness.)
The life of a lamp is accelerated when using it in the environment where a lamp cannot get warm easily.
In case of such usage under lower temp environment, periodical lamp check and exchange is recommended.
the lamp may not be turned on.
Lamp life time is defined that it applied either ① or ② under this condition
(Continuous turning on at Ta=25
① Brightness becomes 50% of the original value under standard condition.
② Kick-off voltage at Ta=-30
Module
CN2,3：1pin
CN2,3：2pin
Symbol
LL
PL
FL
Vs
IL
o
C exceeds maximum value, 1300Vrms.
o
C, IL=6.0mA rms)
50000
Min.
Ａ
∼
3.0
35
-
-
Typ.
Ｖ
∼
6.0
3.5
60
-
-
Inverter
output voltage
Max.
1300
6.5
80
-
-
mA rms [Note1]
V rms Ta=-30
Hour
Unit
kHz
W
Remark
[Note2]
[Note3]
[Note5]
Inverter
o
C
[Note4]