LBR-123S

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 3 1 4 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 75 50 30 5 75 -40 to +85 -25 to +85 260 Units mA V A mW mA V V mW ℃ ℃ ℃ Note Pulse width≦100μs, Duty cycle=1% 10 seconds max. 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 TYP. 1.2 940 110 MAX. 1.6 10 100 0.4 1 20 20 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 2 Letex Technology Corp. Reflective Object Sensor Reference Data Forward current Vs. Ambient temperature 60 50 100 2000 Power dissipation Vs. Ambient temperature Peak forward current Vs. Duty ratio Power dissipation (mW) Peak forward current ( mA) 1000 500 200 100 50 20 Pulse width 100us Ta = 25℃ Forward current (mA) 40 30 20 10 0 -30 0 25 50 75 100 125 80 60 40 20 0 -25 0 25 50 75 100 125 10 5 10 -3 2 5 10 -2 2 5 10 -1 2 5 10 0 Ambient temperature (℃) Ambient temperature (℃) Duty ratio Forward current Vs. Forward voltage 500 200 Ta = 75℃ 50℃ 25℃ 0℃ 25℃ Collector current Vs. Forward current 700 600 Vce = 2V Ta = 25℃ Collector current Vs. Collector-Emitter voltage 350 Ta = 25℃ 300 15mA 100 50 20 10 5 500 400 300 200 100 Collector current (mA) Forward current (mA) Collector current (uA) 250 200 150 100 4mA 50 IF=2mA 0 10mA 7mA 2 1 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0 5 10 15 20 25 30 0 2 4 6 8 10 12 Forward voltage (V) Forward current (mA) Collector-Emitter voltage (V) Collector current Vs. Ambient temperature 50 IF = 4mA Vce = 2V 500 200 100 Response time Vs. Load resistance 10 -5 Vce = 2V Ic = 100uA Ta = 25℃ Collector dark current Vs. Ambient temperature Vce = 20V 50 20 10 5 2 1 0.5 0.2 30 td tf tr ts Collector dark current (A) 2 5 10 Collector current (uA) Response time ( μ s) 40 10 -6 10 -7 10 -8 10 -9 10 -10 10 -11 20 10 0 -25 0 25 50 75 100 0.1 0.1 0.2 0.5 1 -25 0 25 50 75 100 Ambient temperature (℃) Load resistance (k Ω ) Ambient temperature (℃) Relative collector current Vs. Card moving distance(1) 100 d=1mm IF = 4mA Vce = 2V Ta=25° Relative collector current Vs. Card moving distance(2) 100 d=1mm IF = 4mA Vce = 2V Ta=25° Test circuit for resopnse time Vcc Input Input RD RL Output Output 10% Relative collector current ( %) Relative collector current ( %) 80 80 60 60 90% 40 40 20 20 0 -5 -4 -3 -2 -1 0 1 2 3 4 5 0 -5 -4 -3 -2 -1 0 1 2 3 4 5 Card moving distance (mm) Card moving distance (mm) 3 Letex Technology Corp. 4 Letex Technology Corp.