B170PW07-V0 AUO, B170PW07-V0 Datasheet - Page 14

• Manufacturer Part Number: B170PW07-V0
• Description: Color TFT-LCD
• Manufacturer: AUO

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5.2 Backlight Unit
Parameter guideline for CCFL Inverter
document version 1
Note 1: Typ are AUO recommended Design Points.
Note 2: It should be employed the inverter which has “Duty Dimming”, if ICCFL is less than 4mA.
Note 3: CCFL discharge frequency should be carefully determined to avoid interference between inverter and
TFT LCD.
Note 4: The frequency range will not affect to lamp life and reliability characteristics.
White Luminance
CCFL current(ICCFL)
CCFL Frequency (FCCFL)
CCFL Ignition Voltage (Vs)
CCFL Ignition Voltage(Vs)
CCFL Voltage (Reference)
CCFL Power consumption
(2 lamp)
CCFL Set up Time
*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 CCFL, for
instance, becomes more than 1 [M ohm] when CFL is damaged.
*4 Generally, CCFL 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 CCFL discharge frequency must be carefully chosen so as not to produce interfering noise stripes on
the screen.
*6 Reducing CCFL current increases CCFL discharge voltage and generally increases CCFL 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 All of characteristics listed are measured under the condition using the AUO Test inverter.
Parameter
Product Specification
AU OPTRONICS CORPORATION
B170PW07 V0
5900
3.0
40
666
4.44
1
Min
6500
6.5
60
740
9.6
Typ
7.0
80
1700
1310
814
10.4
Max
[cd/m
[mA] rms
[KHz]
[Volt]
rms
[Volt]
rms
[Volt]
rms
[Watt]
[Sec]
Units
2
]
(Ta=25℃)
Note 1
(Ta=25℃)
Note 2
(Ta=25℃)
Note 3,4
(Ta= 0℃)
Note 5
(Ta= 25℃)
Note 5
(Ta=25℃)
Note 6
(Ta=25℃)
Note 6
Condition
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