B121EW01_V5 AUO, B121EW01_V5 Datasheet - Page 16

• Manufacturer Part Number: B121EW01_V5
• Description: LCD MODULE
• Manufacturer: AUO

Parameter guideline for CCFL Inverter
Note 1: Typ are AUO recommended Design Points.
Note 2: It should be employed the inverter which has “Duty Dimming”, if ICFL is less than 4mA.
Note 3: CFL discharge frequency should be carefully determined to avoid interference between
Note 4: The frequency range will not affect to lamp life and reliability characteristics.
Note 5: CFL inverter should be able to give out a power that has a generating capacity of over
Note 6: Calculator value for reference (ICFL ×VCFL=PCFL)
White Luminance
5 points average
CCFL current(ICFL)
CCFL Frequency(FCFL)
CCFL Ignition Voltage(Vs)
CCFL Voltage (Reference)
(VCFL)
CCFL Power consumption
(PCFL)
*1 All of characteristics listed are measured under the condition using the AUO Test inverter.
*2 In case of using an inverter other than listed, it is recommended to check the inverter
carefully. Sometimes, interfering noise stripes appear on the screen, and substandard
luminance or flicker at low power may happen.
*3 In designing an inverter, it is suggested to check safety circuit very carefully. Impedance of
CFL, for instance, becomes more than 1 [M ohm] when CFL is damaged.
*4 Generally, CFL has some amount of delay time after applying kick-off voltage. It is
recommended to keep on applying kick-off voltage for 1 [Sec] until discharge.
*5 CFL discharge frequency must be carefully chosen so as not to produce interfering noise
stripes on the screen.
*6 Reducing CFL current increases CFL discharge voltage and generally increases CFL
discharge frequency. 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.
1,430 voltage. Lamp units need 1,400 voltage minimum for ignition.
inverter and TFT LCD.
Parameter
Min
1400
180-
5.5
50
-
-
Product Specification
Typ
Document version 0.1
200
580
6.0
3.5
60
-
Max
6.5
70
-
-
-
-
[cd/m
[Watt]
[KHz]
Units
[Volt]
[Volt]
[mA]
rms
rms
rms
2
]
(Ta=25℃)
(Ta=25℃)
Note 2
(Ta=25℃)
Note 3,4
(Ta= 0℃)
Note 5
(Ta=25℃)
Note 6
(Ta=25℃)
Note 6
Condition
B121EW01 V5
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