Supports high temperarure operation

for gaming consoles and portable equipment

2-Wavelength Laser Diodes for DVD/CD Playback

RLD2WMUL3 / RLD2WMFL3 Series

Operating current is reduced by 32% and 46% for DVD and CD playback,

respectively, compared with conventiona l products (RLD2WMUV2 /

RLD2WMFV2). Stable operation is guaranteed up to 80˚C , 5˚Cmore than

standard models.

New Product Bulletin

RLD2WMUL3

RLD2WMFL3

DVD

LD

CD

LD

PD

Equivalent Circuit

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.

Product Outlin

High temperature operation (80˚C)

Catalog No.52F6247E 11. 2009 ROHM ©

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.

www. rohm. com

Access Our Website

The content specified in this document is correct as of 1st September, 2009.

21 Saiin Mizosaki-cho, Ukyo-ku,

Kyoto 615-8585 Japan

TEL : +81-75-311-2121 FAX : +81-75-315-0172

www.rohm.com

Specifications

Real Index Guide Configuration

Temperature Characteristics Comparison

If (mA)

Optically Transparent

Current Block

p-AlGaAs

Clad

n-GaAs Substrate

p-InGaAlP

Clad

p-GaAs

Contact

If (mA)

DVD

CD

Absolute Maximum Ratings

Part No.

RLD2WMUL3

Light Output

Po (mW)

7/7

Reverse Voltage

VR (V)

Operating Temp.

Topr ( ˚C)

-10 to +80

2/2

Storage Temp.

Tstg ( ˚C)

-40 to +85

RLD2WMFL3

7/7

-10 to +80

2/2

-40 to +85

Part No.

RLD2WMUL3

Oscillation Wavelength

lp (nm)

658/782

Threshold Current

Ith (mA)

Operating Current

Iop (mA)

18/17

13/12

Operating Voltage

Vop (V)

2.2/1.8

Monitor Current

Im (mA)

0.25/0.25

Horizontal Divergence

q//(deg)

8.5/10

Vertical Divergence

q (deg)

27/32

RLD2WMFL3

658/782

18/17

13/12

2.2/1.8

0.15/0.17

8.5/10

27/32

Electrical • Optical Characteristics (TC=25˚C, Po=5mW)

0

1

2

3

4

5

6

7

0

1020304050

60

0

1

2

3

4

5

6

7

0

102030

4050

60

Conventional Products

RLD2WMUL3/ RLD2WMFL3 Series

RLD2WMUL3/ RLD2WMFL3 Series

Conventional Products

If (mA)

0

1

2

3

4

5

6

7

0

10

2030

4050

60

25˚C

50˚C

60˚C

75˚C

80˚C

85˚C

If (mA)

0

1

2

3

4

5

6

7

010

20

30

40

50

60

75˚C

80˚C

85˚C

25˚C

50˚C

60˚C

75˚C

80˚C

85˚C

75˚C

80˚C

85˚C

25˚C

50˚C

60˚C

25˚C

50˚C

60˚C

C D Laser

DVD Laser

Operating

current reduced

32%

(at 80˚C)

Operating

current reduced

46%

(at 80˚C)

AlGaAs

Activation

Layer

n-AlGaAs Clad

InGaP

Activation

Layer

n-InGaAlP Clad

Ene rgy

Sa ving