LGH4155
High Brightness LED Lamp
■
Absolute Maximum Ratings
Characteristic
Power dissipation
Forward Current
*
1
Peak Forward Current
Reverse Voltage
Operating Temperature
Storage Temperature
*
2
Soldering Temperature
(Ta=25℃)
Symbol
P
D
I
F
I
FP
V
R
T
opr
T
stg
T
sol
Ratings
100
30
100
5
-30
∼
+85
-40
∼
+100
260℃ for 3 seconds
Unit
mW
mA
mA
V
℃
℃
*1.Duty ratio
≦
1/10, Pulse Width
≦
10msec
*2.Keep the distance more than 2.0mm from PCB to the bottom of LED package
■ Electrical – Optical Characteristics
Characteristic
Spectrum Bandwidth
Reverse Current
(Ta=25℃)
Symbol
Δ
λ
I
R
Test Condition
I
F
= 20mA
V
R
=5V
x
Min.
-
-
-
-
Typ.
35
-
±55
±30
Max.
-
50
-
-
Unit
nm
uA
deg
deg
* Half Angle
3
θ1/2
I
F
= 20mA
y
*3.
θ
1/2
is the off-axis angle where the luminous intensity is
1/2
the peak intensity
Different and Better
2/6
LGH4155
High Brightness LED Lamp
■ Dominant Wavelength
W
D
RANK
A
B
C
I
F
= 20mA
(Ta=25℃)
Test Condition
Min.
520
525
530
Typ.
-
-
-
Max.
525
530
535
Unit
nm
* Wavelength are tested at a current pulse duration 25ms and an accuracy of ±1 nm.
■ Luminous intensity ranks
Iv RANK
N
O
I
F
= 20mA
P
Q
1200
1700
-
-
1700
2400
(Ta=25℃)
Test Condition
Min.
600
850
Typ.
-
-
Max.
850
1200
Unit
mcd
* Luminous intensity is tested at a current pulse duration of 25 ms and an accuracy of ±11%.
* Intensity Measured : 0.01sr(CIE. LED_
B
)
■ Forward Voltage
V
F
RANK
1
I
F
= 20mA
2
3.3
3.5
3.8
(Ta=25℃)
Test Condition
Min.
-
Typ.
3.1
Max.
3.3
Unit
V
* Voltages are tested at a current pulse duration of 1 ms and an accuracy of ±0.1V.
■ Precautions On LED using
* To avoid optical difference, Please do not mix differently-ranked product.
Different and Better
3/6
LGH4155
High Brightness LED Lamp
■ Characteristic Diagrams
Fig. 1
I
F
-
V
F
Ta=25℃
80
Fig. 2
I
V
-
I
F
Ta=25℃
1.5
Forward Current I
F
[mA]
70
60
50
40
30
20
10
0
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Intensity Normalized AT
20mA
1
0.5
0
0
5
10
15
20
25
30
Forward Voltage V
F
[V]
Forward Current I
F
[mA]
Fig. 3
I
F
-Ta
Ta=25℃
Fig. 4 Spectrum Distribution
Ta=25℃
Forward Current I
F
[mA]
Ambient Temperature Ta[℃]
Relative Intensity[%]
Wavelength λ [nm]
Different and Better
4/6
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