LITEMAX ALF/ALH1548, Руководство пользователя

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5.2 Backlight Unit
Parameter guideline for CCFL Inverter
Symbol Parameter Min. Typ. Max. Unit Condition
IRCFL CCFL operation range
5.6 6
[mA]
rms
(Ta=25
o
C)
Note 4
ICFL CCFL Inrush current -
- 20 [mA]
FCFL CCFL Frequency 49
51 53 [KHz] (Ta=25
o
C)
Note 1
ViCFL
(0
o
C)
(reference)
CCFL Ignition Voltage
1450 - -
[Volt]
rms
(Ta=0
o
C)
Note 3
ViCF
(25
o
C)
(reference)
CCFL Ignition Voltage
1100 - -
[Volt]
rms
(Ta=25
o
C)
Note 3
VCFL
CCFL Discharge Voltage
-
570 [Volt]
rms
(Ta=25
o
C)
Note 2
PCFL
CCFL Power consumption
@5.6mA(excluding inverter)
- 3.05 [ Watt] (Ta=25
o
C)
Note 2
Note 1 :
CCFL frequency should be carefully determined to avoid interference between inverter and TFT LCD.
Note 2
: Calculator value for reference (IRCFLxVCFLx2=PCFL).
Note 3
: CCFL inverter should be able to give output a voltage more than 1450 volt. Lamp units need 1450 volt
minimum for ignition.
Note 4
: CCFL life time is 40,000hr at 6.0mA, it
’
s defined as when the brightness is reduced by half. It
’
s recommended
not to exceed 6.0mA for CCFL life time concern and it
’
s prohibited to exceed 6.5mA for safety concern.
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