CLAA170WA02 CHUNGHWA PICTURE TUBES, CLAA170WA02 Datasheet - Page 6

• Manufacturer Part Number: CLAA170WA02
• Description: Display Module
• Manufacturer: CHUNGHWA PICTURE TUBES

CPT
CPT Confidential
Lamp Life Time
Turn-on and Turn-
off Operation
tube will become unequally or will deplete the Ar gas in it. Then it may cause the abnormal
phenomenon of lighting-up. Therefore, designers have to try their best to forfill the conditions under
the inverter designing-stage as below:
*1) These are properties of single lamp(without backlight).
*2) Lamp Current measurement method (The current meter is inserted in cold line)
[Note]
(b) Lamp Life Time
ITEM
If the waveform of light up-driving is asymmetric, the distribution of mercury inside the lamp
The lowest lamp current is IL(IL=3mArms). If lamp current over 8.5mA, it will come up safety
issue and lamp life-time will drop rapidly.
‧The degrees of unbalance： ＜10%
‧The ratio of wave height：＜√2 ±10%
Module
LCD
A：The degrees of unbalance =︱Ip – I-p︱/ Irms ×100 (%)
B：The ratio of wave height = Ip (or I-p) / Irms
IL @3.0 mA
Min. 50,000
--
CTL
CTH
CTH
CTL
IL @7.5 mA IL @8.0 mA IL @8.5 mA
Min. 35,000
5/24
A
A
Ip
I-p
Min. 100,000
Min. 30,000
Typ. 40,000
www.DataSheet.net/
CHUNGHWA PICTURES TUBES, LTD.,
CLAA170WA02-Ver1-20070626
Ip：high side peak
I-p：low side peak
INVERTER
Min. 20,000
--
www.yslcd.com.tw
UNIT
time
hr
Supply
Power
Operation*6)
Operation*7)
REMARK
Continuous
Continuous
Datasheet pdf - http://www.DataSheet4U.co.kr/