Datasheet For Oier3 By Optoi

Transcript

 !" Reflective sensor EEEEEEEEEEEEEEEECFCA93298C The OIER3 reflective sensor consists in an infrared emitting diode and a double NPN silicon phototransistor. The components together are mounted side by side in a plastic black SMD housing. The black package avoids light reflections, noise and behaves as a barrier between led and photoreceivers. The phototransistors respond to radiation emitted from the diode only if a reflective object surface is within the field of view of the detector. C EEEEEEEEEEEEEEEEEEEEEEEC EEEEEEEEEEEEEEEEEEEEEEEEC339A298C 2C 1 Unfocused for sensing diffused surface Scanning 1 SMT package Automated transaction systems 1 High uniformity Metering systems 1 Very stable measurements Motion control systems 1 High gain phototransistor Non invasive medical equipment 1 No contact surface sensing Low distance metering 1 Low profile 1 Low cost 1 Milling on the backside for side PCB mounting EEEEEEEEEEEEEEEEEEEEEEEC9CA298C No. 1 2 3 4 Name C E A K Function Phototransistor Collector Phototransistor Emitter LED Anode LED Cathode Top view Bottom view EEEEEEEEEEEEEEEC9C8B298C OIER3 Rev. B; 11.2009 12234556667832897A8B5C Reflective Sensor with Infrared LED D OIER3 ABSOLUTE MAXIMUM RATINGS Symbol Min Max TA Operating Temperature Range Parameter -25 85 Unit °C Ts Storage temperature -40 85 °C 270 °C Tsol Lead temperature (solder) s IF Continuous forward current 50 mA Vr Reverse voltage 4 V Emitter Receiver VCE0 Collector-emitter voltage 30 V Pd Power dissipation 100 mW Ic Collector DC current 30 mA Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. ELECTRICAL/OPTICAL CHARACTERISTICS TA = 25°C unless otherwise noted. Symbol Parameter Conditions Min Typ Max Unit 1.7 V Emitter VF Forward voltage IF=10µA 1.1 IF=20mA 1.5 V 1p Peak wavelength IF=20mA 875 nm 21 Spectral bandwidth at 50% IF=20mA 45 nm ICE0 Collector dark current Receiver V(BR)CE0 Tr Tf Hfe VCE=10V Collector-emitter breakdown voltage 10 100 50 Rise time Rl=1k3 VCE=5V Ic=1mA Fall time Rl=1k3 VCE=5V Ic=1mA Phototransistor’s gain nA V µs 10 µs 11 500 750 0.5 1 1000 Coupled Ic VCesat D Collector current (reflective surface @ D=1mm) Collector-emitter saturation voltage VCE=5V IF=20mA IF=20mA VCE=5V D=1mm Optimal distance to reflective surface† Unit: mm Tolerance: ± 0.2 mm † See Figure 1 #C 0.3 1.1 MECHANICAL CHARACTERISTICS 12234556667832897A8B5C mA V Mm OIER3 TYPICAL PERFORMANCE CURVES Figure 1 – Normalized collector current VS Distance to reflective surface [mm] § Figure 3 – Normalized collector current [Ic/Ic5mA]VS Forward led current [mA]§ 7 1,00 D=1.1mm Vcc=5V Vcc=5V If=5mA 0,90 Norm aliz ed collector current [5m A] 6 Norm aliz ed collector current 0,80 0,70 0,60 0,50 0,40 0,30 0,20 5 4 3 2 1 0,10 Iled [mA] distance [m m] 0,00 0 2 4 6 8 10 0 Figure 2 – Normalized collector current typical drift VS temperature [°C] 1,3 3 5 7 9 11 13 15 17 19 Figure 4 – Forward led current [mA] VS Forward led voltage [V] § 120.00 Iled=11mA Iled=20mA Iled=21mA Iled=20mA Iled=30mA Iled=36mA I [mA] Forward voltage VS Forward current T=25°C 100.00 Normalized collector current 1,2 1 12 1,1 80.00 1,0 60.00 40.00 0,9 20.00 0,8 Temperature [°C] 0,7 -40 -20 0 20 40 60 80 0.00 1.1000 V [V] 1.2000 1.3000 1.4000 1.5000 1.6000 1.7000 100 § Ta=25°C unless otherwise noted 12234556667832897A8B5C " OIER3 TYPICAL APPLICATION INTERFACE R1 = Vcc − VF IF R2 = Vcc − Vcesat I sat R1 = Vcc − VF IF R2 = Vcc − Vce I R2 Figure 5 – Digital interface IIN input current required for AD conversion Vo output analog voltage (the voltage gain is given by R2 and IF) Figure 6 –Linear signal conversion to digital R1 = Vcc − VF IF R2 = Vcc − Vce I R2 Vo = Aol * (VR 2 − Vr ) Vr voltage threshold Vo voltage digital output Figure 7 – Threshold comparator $C 12234556667832897A8B5C