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參數(shù)資料
| 型號： | LQ197V3DZ31 |
| 廠商： | Sharp Corporation |
| 英文描述： | TFT LCD MODULE |
| 中文描述： | TFT液晶顯示模塊 |
| 文件頁數(shù)： | 8/17頁 |
| 文件大小： | 486K |
| 代理商： | LQ197V3DZ31 |
LD-14402
6
6-2. Inverter driving for back light
The back light system is under-lighting type with 10 CCFTs (Cold Cathode Fluorescent Tube).
Ta=25
Parameter
Symbol
Min.
Current dissipation
I
INV
12V
Supply voltage
V
INV
11.0
Input voltage (Low)
V
ONL
Input voltage (High)
V
ONH
3.0
Brightness control voltage (100%)
V
BRT
Brightness control voltage
V
BRT
0.7
Typ.
3.4
Max.
4.1
Unit
A
Remark
V
BRT
=0V,
V
INV
=12V, V
ON
=5V
Note 1
Note 2
impedance =24.7k
Note 3
impedance =20.6k
-
12.0
-
-
-
-
13.0
0.5
5.0
0.3
5.0
V
V
V
V
V
0
0
Note 4
Note 1
1)V
INV
-turn-on condition
T5
T6
T7
100
1ms
1ms
s
V
INV
-turn-off condition
T8
T9
1ms
1ms
Note 2
Note 3
Note 4 Refrain from using the device under the condition of V
BRT
= 0.5
on display. In case of V
BRT
> 5.0V, the protective circuit may stop driving the inverter.
V
ON
V
BRT
0.2V because of the possibility of flicker
T5
INV
11V
0V
12V
T6
T7
0
5V
BRT
0V
5V
ON
0V
12V
INV
0V
T9
T8
0
5V
BRT
0V
5V
ON
0V
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