RLD78PPY4

www.DataSheet4U.com RLD78PPY4 Laser Diodes AlGaAs laser diode RLD78PPY4 The RLD78PPY4 is infrared laser diode high power output type (pulse 240mW). This is the best for optical disk drive use, such as CD-R/RW. zApplications Max. X52 speed CD-R/RW drives. zFeatures 1) Absolute maximum optical power output : pulse 240mW 2) Wave length : Typ. 784nm 3) φ5.6mm small packages zDimensions (Unit : mm) 90°±2° 0.4±0.1 Equivalent circuit diagram φ1.0Min. P t y p e φ4.4+0 (3) L.D. (1) (2) 1.0±0.1 φ5.6 +0 −0.025 φ3.6 1.2±0.1 2.3 6.5±0.5 (1.35) 3−φ0.45 (3) (2) (1) Chip zAbsolute maximum ratings (Tc=25°C) Parameter Output Reverse voltage Raser PIN photodiode Symbol PO VR VR(PIN) Topr Tstg Limits Pulsed 240 Pulse condition : pulse 50ns, Duty50% 2 − −10 to +70 (Pulsed) −40 to +85 Unit mW V − °C °C Operating temperature Storage temperature 1/2 www.DataSheet4U.com RLD78PPY4 Laser Diodes zElectrical and optical characteristics (Tc=25°C､CW) Parameter Threshold current Operating current Operating voltage Differential efficiency Parallel divergence angle Perpendicular divergence angle Parallel deviation angle Perpendicular deviation angle Emission point accuracy Peak emission wavelength Astigmatism Symbol Ith Iop Vop η θ //∗ Min. − − − 0.7 7 14 −2 −3 −80 777 − Typ. 35 133 2.1 0.9 8 17 0 0 0 784 − Max. 50 165 2.5 1.4 10 19 +2 +3 +80 789 6 Unit mA mA V mW/mA deg deg deg deg µm nm µm PO=90mW NA=0.15, PO=90mW − PO=90mW Conditions − θ ⊥∗ ∆φ // ∆φ ⊥ ∆X ∆Y ∆Z λ ∆ ∗ θ // and θ ⊥ are d...