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參數(shù)資料
| 型號(hào)： | L2791-03 |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | Small emission spot LED using current confined chip |
| 中文描述： | 小排放點(diǎn)的LED芯片采用電流限制 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 117K |
| 代理商： | L2791-03 |
Features
l
Small emission spot
L2791 :
φ
400
μ
m
L2791-03:
φ
160
μ
m
l
Uniform emission: L2791/-02
l
Narrow directivity: L2791/-02
Applications
l
Automatic control systems
l
Optical switches
l
Auto-focus
L E D
Infrared LED
L2791 series
Small emission spot LED using current confined chip
L2791 is infrared LED with a microball lens cemented to the current confined chip surface. This combination ensures high directivity and improved
emission uniformity. In particular, L2791-02 uses a lens cap that delivers even narrower directivity. As a variant type not using a microball lens,
L2791-03 is also available with the LED chip potted with resin, which gives a small emission spot of
φ
160
μ
m.
I
Absolute maximum ratings (Ta=25
°
C)
Parameter
Forward current
Reverse voltage
Symbol
I
F
V
R
Condition
Value
80
3
Unit
mA
V
Pulse forward current
I
FP
Pulse width=10 μs
Duty ratio=1 %
0.5
A
Operating temperature
Storage temperature
* L2791-03 is guaranteed to resist temperature cycle test of up to 5 cycles.
Topr
Tstg
-30 to +85
-40 to +100 *
°
C
°
C
I
Electrical and optical characteristics (Ta=25
°
C)
L2791
Typ.
L2791-02
Typ.
L2791-03
Typ.
Parameter
Symbol
Condition
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Peak emission
wavelength
Spectral half width
Forward voltage
Pulse forward voltage
Reverse current
Radiant flux
Radiant illuminance
Rise time
Fall time
λ
p
I
F
=50 mA
850
880
910
850
880
910
850
880
910
nm
λ
V
F
V
FP
I
R
φ
e
P
E
tr
tf
I
F
=50 mA
I
F
=50 mA
I
F
=0.5 A
V
R
=3 V
I
F
=50 mA
I
F
=50 mA
I
F
=50 mA, 10 to 90 %
I
F
=50 mA, 90 to 10 %
-
-
-
-
60
1.5
3.2
-
2.0
1.3
0.12
0.12
-
-
-
-
-
60
1.5
3.2
-
2.0
2.0
0.12
0.12
-
-
-
-
-
60
1.5
3.2
-
5.0
-
0.12
0.12
-
nm
V
V
μA
mW
1.7
4.0
10
-
-
0.2
0.2
1.7
4.0
10
-
-
0.2
0.2
1.7
4.0
10
-
-
0.2
0.2
1.6
-
-
-
1.6
-
-
-
4.0
-
-
-
mW/cm
2
μs
μs
1
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