LQ10D36A Sharp Electronics, LQ10D36A Datasheet - Page 8

• Manufacturer Part Number: LQ10D36A
• Manufacturer: Sharp Electronics

Specifications of LQ10D36A

• Lead Free Status / Rohs Status: Compliant

6-2. 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
[Note3] Lamp frequency may produce interference with horizontal synchronous frequency,and this may cause
[Note4] The open output voltage of the inverter shall be maintained for more than 1s; otherwise
[Note5] lamp is an article of consumption. Lamp life time is 50,000 hours (reference value) on condition of the
[Note6] The performance of the backlight, for example life time or brightness, is much influenced
[Note7] Under the environment of 10lx or less, miss-lighting delay may occur.
Lamp current
Lamp power consumption
Lamp frequency
Kick-off voltage
The backlight system is an edge-lighting type with single CCFT (Cold Cathode Fluorescent Tube).
The characteristics of single lamp are shown in the following table.
(It is usually required to measure under the following condition.
Module
condition:IL=6.0mA,Ta=25℃±2℃,FL=60kHz.)
The data do not include loss at inverter. ( I
the lamp may not be turned on.
following, but this value is not guaranteed.
When lamp (the long side of LCD module) is placed horizontally (landscape position), lamp life time is
defined that it applied either ① or ② under this condition.
(Lamp lifetime may vary if lamp is in portrait position due to the change of mercury density inside the
In case of operating under lower temp environment, the lamp exhaustion is accelerated
beat 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.
Parameter
lamp.)
and the brightness becomes lower.
(Continuous operating under lower temp condition for around 1 month may reduce the
In case of such usage under lower temp environment, periodical lamp exchange is recommended.
by the characteristics of the DC-AC inverter for the lamp. When you design or order the
inverter, please make sure that a poor lighting caused by the mismatch of the backlight 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.
Be sure to use a back light power supply with the safety protection circuit such as the detection circuit
for the excess voltage, excess current and or electric discharge waveform.
Be sure to use the detect circuit by which one side of the CCFT lamps can be controlled independently.
Otherwise, when one side of the CCFT is open, the excess current may possibly be applied to the other
side of the lamp.
(Continuous turning on at Ta=25
① Brightness becomes 50% of the original value under standard condition.
② Kick-off voltage at Ta=-10
brightness to half of the original brightness.)
CN2：1pin
CN2：3pin
Symbol
Vs
P
F
I
L
L
L
Ａ
∼
o
Min.
C exceeds maximum value.
2.0
−
20
−
−
−
o
C, I
Data Modul AG - www.data-modul.com
L
=6.0mA rms.)
Ｖ
∼
L
Typ.
(3.0)
6.0
=6.0mArms)
35
−
−
−
L
Inverter
output voltage
× V
(1400)
(1500)
Max.
(950)
6.5
−
60
L
)
mArms 【Note1】
Vrms Ta= 25℃【Note4】
Vrms Ta = 0℃【Note4】
Vrms Ta = -10℃【Note4】
KHz 【Note3】
Unit
Ｗ
【Note2】
Ｖ
∼
Transformer
output voltage
Inverter
Remark
8