G104X1-L04 Datasheet, PDF (8/26 Pages) AZ Displays – 10.4” TFT Liquid Crystal Display module

Issued Date: Jan. 04, 2010
Model No.: G104X1-L04
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
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LED Power Consumption
P_LED
---
EN Control Level
Backlight on
Backlight off
2.0
0
PWM Control Level
PWM High Level
PWM Low Level
2.0
0
PWM Control Duty Ratio
20
Value
Typ.
12.0
0.7
8
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---
---
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Max.
13.2
---
---
3.3
0.8
3.3
0.15
100
Unit
Note
V (Duty 100%)
A
@ Vi = 12V
(Duty 100%)
@ Vi = 12V
(Duty 100%)
V
V
V
V
%
PWM Control Frequency
f_PWM
190
200
210 Hz
LED Life Time
L_L 50,000
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 and I_LED = 80mA_DC(LED forward current) until the brightness becomes 50% of its
original value. And minimum LED lifetime is estimated and provided by Nichia in Japan.
Input Power
Pi
Power Supply
Vi, Ii
GND
Converter
LED
Backlight
Unit
8/26
Version 2.0