Datasheet H21B1, H21B2, H21B3 (Fairchild) - 5

PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH H21B1 H21B2 H21B3 Figure 4. Leakage Current vs. Temperature DETECTOR EMITTER
104 104 NORMALIZED TO VCE = 25 V TA = 25 °C 103 103 VCE = 25 V 102 VCE = 10 V 102 NORMALIZED TO VR = 5 V TA = 25 °C 10 10 , NORMALIZED DARK CURRENT , NORMALIZED LEAKAGE CURRENT I CEO I R 1 1 0.1 0.1 25 50 75 100 25 50 75 100 T A, AMBIENT TEMPERATURE (°C) T A, AMBIENT TEMPERATURE (°C)
Figure 6. Output Current vs. Distance Figure 5. Switching Speed vs. R
d, DISTANCE (mils)
L
78.7 157.5 236.2 315 393.7 4 1.00 R I L F + 2 VCC .1 NORMALIZED PW = 300 µs TO VALUE WITH 1 PRR = 100 pps SHIELD 7.5 BLACK .8 I AMPS, V t REMOVED NORMALIZED F = CC = 5V R off SHIELD L .01 OFF .6 NORMALIZED TO + D d E + BLACK o R .4 L = 750 Ω SHIELD , AND t t ON , NORMALIZED OUTPUT CURRENT d .001 ton o .2 I CE(on) 0.1 .0001 10 20 40 60 80 100 200 400 600 800 1000 1500 0 2 4 6 8 10 75 750 d, DISTANCE (mm) RL , LOAD RESISTANCE (Ω) © 2002 Fairchild Semiconductor Corporation Page 5 of 6 6/13/02