Document
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1
PACKAGE DIMENSIONS
0.972 (24.7) 0.957 (24.3)
H21B2
H21B3
0.472 (12.0) 0.457 (11.6)
C L
Ø 0.133 (3.4) Ø 0.126 (3.2) (2X)
0.249 (6.35) 0.243 (6.15)
+ E
D +
C L
0.39 (1.00) 0.34 (0.85)
0.755 (19.2) 0.745 (18.9)
0.129 (3.3) 0.119 (3.0) 0.103 (2.60) NOM 0.433 (11.0) 0.422 (10.7)
Optical C L
0.125 (3.2) 0.119 (3.0)
C L .295 (7.5) .272 (6.9)
0.315 (8.0)
SCHEMATIC
0.110 (2.8) 0.091 (2.3)
2 1
3 4
PIN 1 ANODE PIN 2 CATHODE PIN 3 COLLECTOR PIN 4 EMITTER
0.020 (0.51) (SQ)
1
4
NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified.
2
3
DESCRIPTION
The H21B1, H21B2 and H21B3 consist of a gallium arsenide infrared emitting diode coupled with a silicon photodarlington in a plastic housing. The packaging system is designed to optimize the mechanical resolution, coupling efficiency, ambient light rejection, cost and reliability. The gap in the housing provides a means of interrupting the signal with an opaque material, switching the output from an “ON” to an “OFF” state.
FEATURES
• Opaque housing • Low cost • .035" apertures • High IC(ON)
© 2002 Fairchild Semiconductor Corporation
Page 1 of 6
6/13/02
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1 H21B2 H21B3
ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified)
Parameter Operating Temperature Storage Temperature Soldering Temperature (Iron)(2,3 and 4) Soldering Temperature INPUT (EMITTER) Continuous Forward Current Reverse Voltage Power Dissipation(1) OUTPUT (SENSOR) Collector to Emitter Voltage Emitter to Collector Voltage Collector Current Power Dissipation (TC = 25°C)(1) VCEO VECO IC PD 30 6 40 150 V V mA mW IF VR PD 50 6 100 mA V mW (Flow)(2 and 3) Symbol TOPR TSTG TSOL-I TSOL-F Rating -55 to +100 -55 to +100 240 for 5 sec 260 for 10 sec Unit °C °C °C °C
NOTES: 1. Derate power dissipation linearly 1.67 mW/°C above 25°C. 2. RMA flux is recommended. 3. Methanol or isopropyl alcohols are recommended as cleaning agents. 4. Soldering iron 1/16" (1.6 mm) minimum from housing.
© 2002 Fairchild Semiconductor Corporation
Page 2 of 6
6/13/02
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1
ELECTRICAL/OPTICAL CHARACTERISTICS (TA =25°C)
PARAMETER INPUT (EMITTER) Forward Voltage Reverse Breakdown Voltage Reverse Leakage Current OUTPUT (SENSOR) Emitter to Collector Breakdown Collector to Emitter Breakdown Collector to Emitter Leakage COUPLED IF = 2 mA, VCE = 1.5 V IF = 100 µA, Ee = 0 IC = 1 mA, Ee = 0 VCE = 25 V, Ee = 0 BVECO BVCEO ICEO All All All H21B1 H21B2 H21B3 H21B1 On-State Collector Current IF = 5 mA, VCE = 1.5 V IC(ON) H21B2 H21B3 H21B1 IF = 10 mA, VCE = 1.5 V IF = 10 mA, IC = 1.8 mA IF = 60 mA, IC = 50 mA IF = 10 mA, VCC = 5 V, RL = 750Ω IF = 60 mA, VCC = 5 V, RL = 75Ω IF = 10 mA, VCC = 5 V, RL = 750Ω IF = 60 mA, VCC = 5 V, RL = 75Ω H21B2 H21B3 Saturation Voltage VCE(SAT) All H21B1/2 All ton All All toff All — 45 — — — 7 250 — — µs 7.0 30 — 0.5 1.0 2.0 2.5 5.0 10 7.5 14 25 — — — — — — — — — — — — — — — — — 45 — — 100 — — — — — — — — — 1.0 1.5 — µs V V mA V V nA IF = 60 mA IR = 10 µA VR = 3 V VF VR IR All All All — 6.0 — — — — 1.7 — 1.0 V V µA TEST CONDITIONS SYMBOL DEVICES MIN TYP MAX UNITS
H21B2
H21B3
Turn-On Time
Turn-Off Time
© 2002 Fairchild Semiconductor Corporation
Page 3 of 6
6/13/02
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1
Figure 1. Output Current vs. Input Current
100 80 60 40 ICE(on), NORMALIZED OUTPUT CURRENT 20 10 8 6 4 2 1 .8 .6 .4 .2 .1 .08 .06 .04 .02 1 2 4 6 8 10 20 40 60 80 100 200 400 600 1000 NORMALIZED TO I F = 5 mA VCE = 1.5 V PULSED PW = 100 µsec PRR = 100 pps
H21B2
H21B3
IF , INPUT CURRENT (mA)
Figure 2. Output Current vs. Temperature
100 NORMALIZED TO VCE = 1.5 V, I F = 5 mA, TA = 25 °C ICE(on), NORMALIZED OUTPUT CURRENT INPUT PULSED IF = 100 mA 10 IF = 60 mA IF = 30 mA IF = 20 mA
1
IF = 10 mA IF = 5 mA IF = 2 mA
0.1
-50
-25
0
25
50
75
100
TA , AMBIENT TEMPERATURE (°C)
Figure 3. VCE(SAT) vs. Temperature
NORMALIZED TO IC 1.8 mA , TA = 25°C = IF 10 mA IC 50 mA = IF 60 mA PULSED PW = 100 µs, PRR = 100 pps
2
VCE(SAT), NORMALIZED
1 0.8 IC 3.6 mA = IF 20 mA
IC 1.8 mA = IF 10 mA
0.6
IC 0.9 mA = IF 5 mA
0.4
-50
-25
0
25
50
75
100
TA , AMBIENT TEMPERATURE (°C)
© 2002 Fairchild Semiconductor Corporation
Page 4 of 6
6/13/02
PHOTODARLINGTON OPTICAL INTERRUPTER SWITCH
H21B1
Figure 4. Leakage Current vs. Temperature DETECTOR
104 104
H21B2
EMITTER
H21B3
NORMALIZED TO VCE = 25 V T A = 25 °C IR, NORMALIZED LEAKAGE CURRENT
103 ICEO, NORMALIZED DARK CURRENT VCE = 25 V 102 VCE = 10 V
103
102 NORMALIZED TO VR = 5 V TA = 25 °C 10
10
1
1
0.1
25
50
75
100
0.1
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. RL
4
IF RL
d, DISTANCE (mils) 1.00
+ VCC
78.7
157.5
236.2
315
393.7
2 tON, AND tOFF NORMALIZED PW = 300 µs PRR = 100 pps 7.5 .