Photointerrupter Model No: LBT-131 Features ˙Compact package based on the double-mold method. ˙High resolution (slit width = 0.5mm). ˙Gap between emitter and detector is 5.25mm. Applications ˙Floppy disk drives ˙Printers ˙Cameras Outline Dimensions (Unit: mm) --1-- Letex Technology Corp. Photointerrupter Model No: LBT-131 Absolute Maximum Ratings (Ambient Temperature: 25℃) Item Symbol Rating Forward current IF 50 Reverse voltage VR 5 Input Peak forward current IFP 1 Power dissipation Collector current Collector-Emitter voltage Output Emitter-Collector voltage Collector power dissipation Storage Temperature Operating Temperature Soldering Temperature Pd Ic Vceo Veco Pc Tstg Top Tsol Units mA V A 75 50 30 5 100 -40 to +85 -25 to +85 260 Electrical Specifications (Ambient Temperature: 25℃) Item Symbol MIN. Forward voltage VF Reverse current IR Input Peak wavelength λp View angle 2θ1/2 Dark current Iceo Output C-E saturation voltage Vce(sat) Light current Ic(on) 0.5 Leakage current ILeak Rise Time tr Speed Fall Time tf --2-- TYP. 1.2 mW mA V V mW ℃ ℃ ℃ MAX. 1.4 10 940 35 100 0.4 1 5 5 Note Tw=10μs, t=10ms 5 seconds max. Units V µA nm Deg. nA µA mA µA µs Conditions IF=20mA VR=5V IF=20mA Vce=20V Ic=2mA, IB=0.1mA Vce=5V IF=20mA Vce=5V Ic=1mA RL=1KΩ Letex Technology Corp. Photointerrupter Reference Data Power dissipation Vs. Ambient temperature Forward current Vs. Ambient temperature Peak forward current Vs. Duty ratio 60 2000 40 30 20 Peak forward current ( mA ) 100 Power dissipation (mW) Forward current (mA) 50 80 60 40 10 20 0 0 Pulse width 100us Ta = 25℃ 1000 500 200 100 50 20 -30 0 25 50 75 100 125 10 -25 0 75 100 -3 125 5 10 50℃ Ta = 25℃ 20 10 5 0 2 5 10 50mA 10 Collector current (mA) Collector current (mA) 25℃ 50 5 10 12 0℃ 100 -1 2 Collector current Vs. Collector-Emitter voltage 10 25℃ 5 10 Collector current Vs. Forward current Vce = 5V Ta = 25℃ Ta = 75℃ 200 -2 2 Duty ratio 12 500 Forward current (mA) 50 Ambient temperature (℃) Ambient temperature (℃) Forward current Vs. Forward voltage 25 8 6 4 2 40mA 8 30mA 6 20mA 4 IF=10mA 2 2 1 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0 10 20 Forward voltage (V) 0 1 200 100 6 5 4 3 3 4 5 6 7 8 9 10 Collector dark current Vs. Ambient temperature 10 -5 Vce = 2V Ic = 2mA Ta = 25℃ Vce = 20V 50 20 tf 10 5 tr td 2 1 2 2 Collector-Emitter voltage (V) 500 Response time ( μ s) Collector current (uA) 50 Response time Vs. Load resistance IF = 20mA Vce = 5V 7 40 Forward current (mA) Collector current Vs. Ambient temperature 8 30 Collector dark current (A) 0 ts 0.5 1 10 -6 10 -7 10 -8 10 -9 10 -10 0.2 0 -25 0 25 50 75 0.1 0.03 0.05 0.1 0.2 0.5 1 100 10 -11 2 5 100 0.30 Relative collector current (%) 0.20 0.15 0.10 0.05 25 50 75 100 Test circuit for resopnse time Vcc IF = 20mA Vce = 5V Ta=25° IF = 40mA Ic=1mA 0.25 0 Ambient temperature (℃) Relative collector current Vs. Shield distance C-E Saturation voltage Vs. Ambient temperature C-E Saturation voltage (V) -25 Load resistance (k Ω ) Ambient temperature (℃) 0 -25 10 80 Input RL Input RD Output Output 10% 60 90% 40 20 0 0 25 50 75 100 -2 -1 0 1 2 -2 -1 0 1 --3-- 2 Letex Technology Corp.