Specifications
G121SN01 V4 rev. 1.4
P
age 13/24
G
121SN01 V4
5.2 Backlight Unit
5.2.1 Parameter guideline for LCD
Following characteristics are measured under stable
condition . (Room Temperature):
Symbol Parameter Min. Typ. Max. Unit Remark
VCC Input Voltage 10.8 12 12.6
[Volt]
I
VCC
Input Current - 0.48 -
[A] 100% PWM Duty
P
VCC
Power Consumption - 5.76 6
[Watt]
100% PWM Duty
On Control Voltage 3.0 - 5.5 Volt
V
LED On/Off
O
ff Control Voltage - 0 0.5 Volt
F
PWM
Dimming Frequency 200 - 20K
[Hz]
Swing Voltage 3 3.3 5.5
[Volt]
Dimming duty cycle 5 - 100
%
I
F
LED Forward Current - 80 - [mA] Ta = 25
o
C
-
27.9 31.5
[Volt] I
F
= 80mA, Ta = -30
o
C
-
28.8 32.9
[Volt] I
F
= 80mA, Ta = 25
o
C
V
F
LED Forward Voltage
-
30.6 35.1
[Volt] I
F
= 80mA, Ta = 85
o
C
P
LED
LED Power Consumption - 4.9 5.6 [Watt]
Operation Life
50,000 - - Hrs I
F
=80mA, Ta= 25
o
C
Note 1: Ta means ambient temperature of TFT-LCD module.
Note 2: VCC, I
VCC
, P
VCC
are defined for LED backlight.(100% duty of PWM dimming)
Note 3: I
F
, V
F
are defined for one channel LED. There are two LED channel in back light unit.
Note 4: If G121SN01 V4 module is driven by high current or at high ambient temperature & humidity condition. The
operating life will be reduced.
Note 5: Operating life means brightness goes down to 50% initial brightness. Minimum operating life time is estimated
data.
AUO Confidential For DATAMODUL Internal Use Only / 2012/10/24
Data Modul AG - www.data-modul.com