SLD131UL GaAlAs Laser Diode Description The SLD131UL is a low-power consumption and low-noise laser diode developed for portable CDs. M-259 Features • Low current consumption IOP: 20mA (PO = 2.5mW) • Supports single power supply. • Low noise Applications • Portable CDs Structure • GaAlAs double hetero laser diode • PIN photodiode to monitor laser beam output Absolute Maximum Ratings (Tc = 25°C) • Optical power output PO 4 mW • Reverse voltage VR LD 2 V PD 15 V • Operating temperature Topr –10 to +60 °C • Storage temperature Tstg –40 to +85 °C Connection Diagram 3 Pin Configuration COMMON LD PD 2 2 1 1 3 1. LD anode 2. PD anode 3. COMMON Bottom View Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. –1– E94615-PK SLD131UL Electrical and Optical Characteristics (TC = 25°C) Item TC : Case temperature Conditions Symbol Min. Typ. Max. Unit 16 28 mA 20 30 mA Threshold current Ith Operating current Iop Po = 2.5mW Operating voltage Vop Po = 2.5mW 1.7 1.9 2.5 V Wavelength λp Po = 2.5mW 760 790 810 nm Monitor current Im Po = 2.5mW VR = 5V 0.08 0.11 0.6 mA 20 39 45 degree 8 13 25 degree 25 % ±150 µm ±4 degree 0.9 mW/mA Rediation angle Positional accuracy Perpendicular θ⊥ Parallel θ// Asymmetry ∆SR∗ Position ∆X, ∆Y, ∆Z Po = 2.5mW ∆φ⊥ Po = 2.5mW Differential efficiency ηD Po = 2.5mW Astigmatism AS | Z // –Z⊥ | 15 µm Dark current of PD ID VR = 5V 150 nA capacitance of PD CT VR = 5V, f = 1kHz 30 pF Angle 0.2 Power ∗ ∆SR = SL SR –7° 0° θ// 7° –2– SL – SR SL + SR 0.6 SLD131UL Example of Representative Characteristics Optical power output vs. Forward current characteristics Far field pattern (FFP) 5.0 Tc = 10°C Tc = 10°C 30°C 60°C Po = 2.5mW, Tc = 25°C 40°C 50°C 60°C 20°C 4.0 Relative radiant intensity PO – Optical power output [mV] 4.5 3.5 3.0 2.5 2.0 1.5 θ⊥ θ// 1.0 0.5 0.0 0 5 10 0 15 20 25 30 0.1 0.2 IF – Forward current [mA] 35 IF [mA] –40 –30 –20 –10 0 10 0.3 30 40 Angle [ ° ] Threshold current vs. Temperature characteristics Differential efficiency vs. Temperature characteristics 100 1.0 Po = 2.5mW ηD – Differential efficiency [mW/mA] 80 Ith – Threshold current [mA] 20 Imon [mA] 60 40 20 10 –20 0 20 40 60 0.8 0.6 0.4 0.2 0.0 –20 80 0 Tc – Case temperature [°C] 20 40 60 80 Tc – Case temperature [°C] Monitor current vs. Temperature characteristics PIN diode voltage and current characteristics 0.25 1.0 Po = 2.5mW, Tc = 25°C Po = 2.5mW Im – Monitor current [mA] Current [mA] 0.8 0 –0.25 –1.0 0.0 0.6 0.4 0.2 0.1 –20 1.0 0 20 40 Tc – Case temperature [°C] Voltage [V] –3– 60 80 SLD131UL Power dependence of far field pattern (Perpendicular to junction) Power dependence of far field pattern (Parallel to junction) Tc = 25°C Relative radiant intensity Relative radiant intensity Tc = 25°C Po = 4mW Po = 4mW Po = 2.5mW Po = 2.5mW Po = 1mW Po = 1mW –40 –30 –20 –10 0 10 20 30 0 –40 40 –30 –20 –10 10 0 20 30 40 Angle [ ° ] Angle [ ° ] Temperature dependence of far field pattern (Parallel to junction) Temperature dependence of far field pattern (Perpendicular to junction) Po = 2.5mW Po = 2.5mW Tc = 50°C Relative radiant intensity Relative radiant intensity Tc = 60°C Tc = 60°C Tc = 50°C Tc = 40°C Tc = 40°C Tc = 30°C Tc = 30°C Tc = 20°C Tc = 20°C Tc = 10°C Tc = 10°C –40 –30 –20 –10 0 10 20 30 40 –40 Angle [ ° ] –30 –20 –10 0 Angle [ ° ] –4– 10 20 30 40 SLD131UL Power dependence of oscillating spectrum Tc = 25°C Relative radiant intensity Po = 1mW Po = 2.5mW Po = 4mW 780 785 790 λ – Wavelength [nm] –5– 795 800 SLD131UL Temperature dependence of oscillating spectrum PO = 2.5mW Relative radiant intensity Tc = 60°C Tc = 40°C Tc = 20°C 785 790 795 λ – Wavelength [nm] –6– 800 805 SLD131UL Unit: mm M-259 Reference Slot 0.4 1.0 0.5 3 90° Window Glass φ0.8 2 1 0 φ5.6 – 0.05 φ4.4 MAX 0.5 MIN φ3.8 MAX 5 2 3 1 6.5 LD Chip & Photo Diode 30° 0.2 Reference Plane 1.2 ± 0.1 3.1 MAX 0.6 ∗1.26 Package Outline 3 – φ0.45 ∗Optical Distance = 1.35 ± 0.15 SONY CODE PCD φ2.0 M-259 EIAJ CODE JEDEC CODE PACKAGE WEIGHT –7– 0.3g