Acer AL722, Manual

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5. PK070011400/LIENHANG INVERTER BOARD
A. Description
The LI-2098 Inverter board is designed for lighting up the back-lights of LCD module.
B. Electrical characteristics
B-1 FOR FUJITSU PANEL (FLC44SXC8V)
MIN. TYP. MAX. COMMENT
INPUT VOLTAGE 11.4V 12.0V 12.6V 12V±5%
INPUT CURRENT -------- 2.1A _
Vin=12V,Vbrite=3.7
5V
Normal BACKLIGHT
VOLTAGE
-------- 700 Vrms. --------
LAMP CURRENT
4m 6mArms 7m
Each CCFL
DRIVING
FREQUENCY
40KHz 50KHZ 60KHz
EFFICIENCY -------- 78% --------
Vin = 12V,max
brightness
PWM dimming
frequency
160Hz 180Hz 200Hz
Vin ON/OFF
sequence
-------- 0.5S --------
OLP TIME -------- 1S _
Open lamp
protection time
BRIGHTNESS
RANGE
30% -------- 100%
Brightness control 0V _ 3.75V
3.75V, brightness
max
Brightness 170 cd/m
2
220cd/m
2
_
Strike voltage at 0°C _ _ 1500 Vrms
Strike voltage at 25°C _ 1300 Vrms 1500 Vrms
Operating life time 50,000 hrs _ _ (note)
Note:
Life time (hr) can be defined as the time in which it continues to operate under the condition:
Ta=25±2°C, IL =12 mArms until one of the following event occurs:
1. When the brightness becomes 50 %
2. When the startup voltage (Vs) at 0°C becomes higher than the maximal value of Vs specified above.
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