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2.2
Backlight Unit
Following characteristics are measured under a stable condition at 25°C (Room Tem-
perature):
Table 2.2: Backlight driving conditions
Symbol
Parameter
VCC
Input Voltage
I
Input Current
VCC
P
Power Consumption
VCC
Irush
Inrush Current
LED
F
Dimming Frequency
PWM
Swing Voltage
Dimming Duty Cycle
I
LED Forward Current
F
V
LED Forward Voltage
F
P
LED Power
LED
Consumption
Operation
Lifetime
Note 1 Ta means ambient temperature of TFT-LCD module.
Note 2 VCC, Ivcc, PVCC, Irush LED are defined for LED B/L.(100% duty of PWM
dimming).
Note 3 IF, VF , PLED are defined for LED Light Bar.
Note 4 If IDK-1119R-35SXA1E 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. Mini-
mum operating lifetime is estimated data.
Values
Unit
Min.
Typ.
Max.
12
[Volt]
1.15
1.25
[A]
13.8
15
[Watt]
2.1
2.5
[A]
0.2
20
[kHz]
-
3.3
-
V
10
-
100
%
80
mA
-
-
-
Volt
-
3.5
4
Volt
-
-
-
-
12
14.4
Watt
50,000
Hrs
9
Condition
100% PWM Duty
100% PWM Duty
at rising
time=470us
[A]
°
Ta = 25
C
I
=80mA, Ta =
F
°
25
C
I
=80 mA, Ta =
F
°
25
C
I
=80mA, Ta=
F
°
25
C
IDK-1119R User Manual
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