RLD78NZH1 Laser diodes AlGaAs laser diodes RLD78NZH1 The RLD78NZH1 is the laser diode for laser printers that has excellent temperature characteristics and excellent droop characteristics. zExternal dimensions (Unit : mm) zApplications Laser printers Optical sensors Equivalent circuit diagram φ3.6 1.0±0.1 Optical distance 1.35 φ5.6 +0 −0.025 Glass window (3) N t y p e L.D. P.D. (1) (2) Chip 1.2±0.1 6.5±0.5 2.3 zFeatures 1) Absolute max. output power is 5mW. 2) High-precision, compact package.(φ5.6mm) 3) Low droop. 4) Can be driven by single power supply (N type). φ4.4+0 φ1.0Min. 90°±2° 0.4±0.1 3−φ0.45 (2) (3) (1) zAbsolute maximum ratings (Tc=25°C) Parameter Reverse voltage Output Laser Symbol Limits Unit PO 5 mW VR 2 V VR (PIN) 30 V Operating temperature Topr −10 to +60 °C Storage temperature Tstg −40 to +85 °C PIN photodiode 1/2 RLD78NZH1 Laser diodes zElectrical and optical characteristics (Tc=25°C) Parameter Symbol Min. Threshold current Ith − 16 45 mA Operating current Iop − 28 65 mA PO=3mW Operating voltage Vop − 1.9 2.3 V PO=3mW Differential efficiency η 0.1 0.25 0.4 mW/mA Monitor current Im 0.2 0.45 0.9 mA θ //∗ 8 11 15 deg Perpendicular divergence angle θ ⊥∗ 25 30 38 deg Parallel deviation angle ∆θ // − − ±2 deg Perpendicular deviation angle ∆θ ⊥ − − ±3 deg Emission point accuracy ∆X ∆Y ∆Z −100 − +100 µm λ 770 785 795 nm PO=3mW ∆P − 5 10 % PO=3mW Parallel divergence angle Peak emission wavelength Droop Typ. Max. Unit Conditions − 2mW I(3mW) − I(1mW) PO=3mW PO=3mW − ∗θ// and θ⊥ are defined as the angle within which the intensity is 50% of the peak value. zElectrical and optical characteristic curves Vf Po [v] [mW] 3 5 0 [ IL ] Im [mA] 1 .5 η [W/A] 1.5 2 12.0 1 10.0 Vf .75 25°C 50°C 60°C 70°C 2 3 .5 80°C 90°C 2 60 C 8.0 Droop (%) 4 6.0 25 C 4.0 1 0 .25 η 1 0 100 0 0 20 40 60 80 2.0 0.0 0 1 2 4 3 5 6 Output power (mW) IF (mA) Fig.2 Dependence of droop on output power and temperature Fig.1 Dependence of I−L on temperture 1 1 Tc=25°C Tc=25°C 5mW 5mW .8 .8 4mW 4mW .6 .6 3mW 3mW .4 .4 2mW 2mW .2 .2 1mW 0 −60 −40 −20 0 20 40 60 1mW 0 −60 −40 −20 0 20 40 60 ANGLE (deg.) ANGLE (deg.) Fig.3 Paralle far field pattern Fig.4 Perpendicular for field pattern 2/2 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.1