Reflective Object Sensor Model No: LBR-123S Description The LBR-123S is a light reflection switch that includes a GaAs IRLED transmitter and a NPN photo-transistor with a high photosensitive receiver for short distance, operating in the infrared range. Both components are mounted side-by-side in a plastic package. Features ˙Fast response time ˙High sensitivity ˙Cutting wavelength λ=840nm ˙Thin ˙Compact Applications ˙Camera ˙VCR ˙Floppy disk driver ˙Cassette type recorder ˙Various microcomputer control equipment Outline dimensions 4 3 1 2 1 2 3 1 2 3 4 4 1 Letex Technology Corp. Reflective Object Sensor Model No: LBR-123S 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 BVceo BVeco Pc Tstg Top Tsol Units mA V A 75 50 30 5 75 -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) 0.1 Leakage current ILeak Rise Time tr Speed Fall Time tf 2 TYP. 1.2 mW mA V V mW ℃ ℃ ℃ MAX. 1.6 10 940 110 100 0.4 1 20 20 Note Pulse width≦100μs, Duty cycle=1% 10 seconds max. Units V µA nm Deg. nA V mA µA µs Conditions IF=20mA VR=5V IF=20mA Vce=10V Ic=2mA, IB=0.1mA Vce=5V IF=20mA Vce=2V Ic=100uA RL=1KΩ Letex Technology Corp. Reflective Object Sensor Reference Data Power dissipation Vs. Ambient temperature Forward current Vs. Ambient temperature Peak forward current Vs. Duty ratio 60 2000 40 30 20 10 Peak forward current ( mA) 100 Power dissipation (mW) Forward current (mA) 50 80 60 40 20 Pulse width 100us Ta = 25℃ 1000 500 200 100 50 20 0 0 -30 0 25 50 75 100 125 10 -25 0 Ambient temperature (℃) 700 -3 125 5 10 2 -2 5 10 25℃ 50 20 10 5 10 -1 2 5 10 0 Collector current Vs. Collector-Emitter voltage 350 Ta = 25℃ 15mA 300 500 400 300 200 250 10mA 200 150 7mA 100 5 4mA 100 50 IF=2mA 2 1 0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0 5 10 Forward voltage (V) 15 20 25 30 0 Forward current (mA) Collector current Vs. Ambient temperature 100 Response time ( μ s) 40 30 20 50 8 10 12 Vce = 20V td tf 20 10 tr 5 2 ts 1 10 6 10 -5 Vce = 2V Ic = 100uA Ta = 25℃ Collector dark current (A) 200 4 Collector dark current Vs. Ambient temperature 500 IF = 4mA Vce = 2V 2 Collector-Emitter voltage (V) Response time Vs. Load resistance 50 Collector current (uA) 2 Duty ratio Collector current (mA) Collector current (uA) Forward current (mA) 0℃ 100 100 Vce = 2V Ta = 25℃ 600 25℃ 50℃ 75 Collector current Vs. Forward current 500 200 50 Ambient temperature (℃) Forward current Vs. Forward voltage Ta = 75℃ 25 0.5 10 -6 10 -7 10 -8 10 -9 10 -10 0.2 0 10 -11 0.1 -25 0 25 50 75 0.1 0.2 0.5 1 100 10 -25 80 Relative collector current (%) d=1mm IF = 4mA Vce = 2V Ta=25° 60 40 20 -4 -3 -2 -1 0 1 2 3 Card moving distance (mm) 4 5 25 50 75 100 Test circuit for resopnse time Vcc 100 100 0 Ambient temperature (℃) Relative collector current Vs. Card moving distance(2) Relative collector current Vs. Card moving distance(1) Relative collector current ( %) 5 Load resistance (k Ω ) Ambient temperature (℃) 0 -5 2 d=1mm IF = 4mA Vce = 2V Ta=25° 80 Input Input RD RL Output Output 10% 60 90% 40 20 0 -5 -4 -3 -2 -1 0 1 2 3 4 5 Card moving distance (mm) 3 Letex Technology Corp. 4 Letex Technology Corp.