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PDF RLD2WMNL2 Data sheet ( Hoja de datos )
| Número de pieza | RLD2WMNL2 | |
| Descripción | Low Output 2-Wavelength Laser Diode | |
| Fabricantes | ROHM Semiconductor | |
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Low Output 2-Wavelength Laser Diode
for DVD/CD Playback
RLD2WMNL2 Series
New Product Bulletin
Ene rg y
Sa v ing
Low operating current and guaranteed
operation up to 85˚C - ideal for car
navigation and DVD systems
Product Outline
ROHM ’s dual-wavelengt h lase r diod e was designe d for DV D an d navigatio n system s expose d to hars h
environments, such as in cars. An original structure is utilized for low current operation and stable operation up
to 85˚C . The package feature s a CAN-type structure with a seale d glass window, providing a high degre e of
reliability under virtually any environment.
New waveguide enables low current operation
An optically transparent real index guide is utilized to minimize loss due to
light absorption, allowing operation with minimal current.
Real Index Guide Configuration
p-AlGaAs
Clad
p-GaAs
Contact
Optically Transparent
Current Block
p-InGaAlP
Clad
n-AlGaAs Clad
AlG
A
Layer
InGaP
Ac
n-InGaAlP Clad Layer
C D Laser n-GaAs Substrate DVD Laser
Specifications
Absolute Maximum Ratings
Part No.
Light Output
Po (mW)
RLD2WMNL2
7/7
Reverse Voltage
VR (V)
2
Operating Temp.
Topr ( ˚C)
-30 to +85
High temperature operation (85˚C)
The proprietary structure ensures stable operation up to 85˚C, reducing
operating current by 44% and 43% over conventional DVD and CD laser
diodes, respectively.
Temperature Characteristics Comparison
DVD
Conventional Product
7
25˚C
6 40˚C
5 60˚C
4
3
80˚C
2 85˚C
1 90˚C
0
0 20 40 60 80 100
If (mA)
CD
Conventional Product
7
6 25˚C
40˚C
5 60˚C
4
3 80˚C
85˚C
2 90˚C
1
0
0 20 40 60 80 100
If (mA)
RLD2WMNL2 Series
7
25˚C
6 40˚C
5 60˚C
4
3
80˚C
2 85˚C
1 90˚C
0
0 20 40 60
If (mA)
Operating
current reduced
44%
(at 85˚C)
80 100
RLD2WMNL2 Series
7
25˚C
6 40˚C
5 60˚C
4 80˚C
3 85˚C
2 90˚C
1
0
0 20 40 60
If (mA)
Operating
current reduced
43%
(at 85˚C)
80 100
Storage Temp.
Tstg ( ˚C)
-40 to +85
Equivalent Circuit
DVD
LD
CD
LD
PD
Electrical • Optical Characteristics (TC=25˚C, Po=5mW)
Part No.
Oscillation Wavelength Threshold Current
lp (nm)
Ith (mA)
RLD2WMNL2
663/785
18/15
Operating Current Operating Voltage
Iop (mA)
Vop (V)
24/20
2.3/1.8
Monitor Current Horizontal Divergence Vertical Divergence
Im (mA)
q//(deg)
q (deg)
0.25/0.25
10/10
28/32
The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the
specifications, which can be obtained from ROHM upon request.Great care was taken in ensuring the accuracy of the information specified in this document. However,
should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage.The technical information
specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any li-
cense to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and
the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
The content specified in this document is correct as of 1st September, 2009.
www. rohm. com Access Our Website
Catalog No.52F6248E 11. 2009 ROHM ©
21 Saiin Mizosaki-cho, Ukyo-ku,
Kyoto 615-8585 Japan
TEL : +81-75-311-2121 FAX : +81-75-315-0172
www.rohm.com
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