G121S1-L02 Datasheet, PDF (10/29 Pages) AZ Displays – 12.1” TFT-LCD module

Issued Date: Jan. 11, 2010
Model No.: G121S1-L02
Approval
3.2 LED CONVERTER
Ta = 25 ± 2 ºC
Parameter
Converter Power Supply Voltage
Converter Power Supply Current
Symbol
V_i
I_i
Min.
10.8
---
Value
Typ.
12.0
1.0
Converter Power Consumption
Pi
---
12
EN Control Level
Backlight on
Backlight off
2.0
3.3
0
---
PWM Control Level
PWM High Level
PWM Low Level
2.0
3.3
0
---
PWM Control Duty Ratio
20
PWM Control Frequency
f_PWM
190
200
LED Life Time
L_L 50,000
Max.
13.2
---
---
5.0
0.8
5.0
0.15
100
210
Unit
Note
V (Duty 100%)
A
@ Vi = 12V
(Duty 100%)
W
@ Vi = 12V
(Duty 100%)
V
V
V
V
%
Hz
Hrs
(2)
Note (1) LED current is measured by utilizing a high frequency current meter as shown below:
Note (2) The lifetime of LED is defined as the time when it continues to operate under the conditions at
Ta = 25 ±2 к and I_LED = 80mA_DC (LED forward current) until the brightness becomes Љ 50% of
its original value.
Input Power
Pi
Power Supply
Vi, Ii
GND
Converter
LED
Backlight
Unit
10 / 29
Version 2.0