
Copyright  2007 Cree, Inc. All rights reserved. The information in this document is subject to change without notice. Cree and the 
Cree logo  are registered trademarks of Cree, Inc. 
4/4                                       COTCO-D-074   REV.1 
3
CLD-CT32.000
Cree, Inc.
4600 Silicon Drive
Durham, NC 27703
USA Tel: +1.919.313.5300
Graphs
Model No. 
Doc. No. 
LP377TYL1-40G 
12  23Sep04 
G
 G
r
 r
a
 a
p
 p
h
 h
s
 s
25%
-30
FIG.6 FAR FIELD PATTERN
-90
-60
30
60
0
9
0%
20%
40%
WL(nm)
900
50% Power Angle : 40
0
WAVELENGTH.
FIG.4 RELATIVE LUMINOUS FLUX VS.
400
0%
0
500
600
700
800
80%
60%
100%
Ie(%)
FIG.2 REVERSE CURRENT VS.
REVERSE VOLTAGE.
-50.0
Domi  WL= 591nm
I (RELATIVE LUMINOUS FLUX)
100%
50%
75%
Half Power      WL=20nm
Ir(uA)
0.0
-10.0
-30.0
-40.0
-20.0
Vr(V)
-40
-60
-50
-30
-20
-10
FIG.5 MAXIMUM FORWARD DC CURRENT VS
AMBIENT TEMPERATURE (Tjmax=120  C)
0
0
20
20
40
80
60
100
Ta(  C)
120
FORWARD CURRENT.
FIG.3 RELATIVE LUMINOUS FLUX VS.
40
60
IF(mA)
100
80
0.0
0.0
0.5
20.0
100.0
40.0 60.0
80.0
If(mA)
          FORWARD VOLTAGE.
FIG.1 FORWARD CURRENT VS.
2.0
1.0
1.5
2.5
2.0
0.0
2.2
3.0
2.4
2.6
2.8
Vf(V)
100.0
60.0
20.0
40.0
80.0
If (mA)
Items
Signatures 
Date
Revision History 
Prepared by 
LiuZM 
2004/09/23 
DOC. No.
CHANGE DESCRIPTION 
Checked by 
AldosinLi 
2004/09/23 
J 16Jul03 
Cancel VF(min). add V8 & X6 
Approved by 
David
2004/09/23 
K 11Nov03 
P
D
 from 150 to 220; Change FIG.5 
ECN#
ECN-H20040261 
12  23Sep04 
Add ESD and Notes; Change FIG.1&3&5; Change 
 Rank form.
V
 & 
O
D
Data is subject to change without prior notice. 
Copyright@2002
 Cotco International Ltd.  
Obsoletes Doc: K 11Nov03.