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PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH H21A4
PACKAGE DIMENSIONS
0.972 (24.7) 0.957 (24.3) 0.472 (12.0) 0.457 (11.6) C L 0.249 (6.35) 0.243 (6.15)
+ E D +
H21A5
H21A6
O 0.133 (3.4) O 0.126 (3.2) (2X)
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
SCHEMATIC
0.125 (3.2) 0.119 (3.0) C L .295 (7.5) .272 (6.9) 0.110 (2.8) 0.091 (2.3) 0.315 (8.0)
1
4
2 1
3 4
PIN 1 ANODE PIN 2 CATHODE PIN 3 COLLECTOR PIN 4 EMITTER
0.020 (0.51) (SQ)
2
3
NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Tolerance of .010 (.25) on all non-nominal dimensions unless otherwise specified.
DESCRIPTION
The H21A series are 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)
2001 Fairchild Semiconductor Corporation DS300291 6/05/01 1 OF 4 www.fairchildsemi.com
PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH H21A4
ABSOLUTE MAXIMUM RATINGS
Parameter Operating Temperature Storage Temperature Soldering Temperature (Iron)(2,3 and 4) Soldering Temperature (Flow)(2 and 3) 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 = 25C)(1) (TA = 25C unless otherwise specified) Symbol TOPR TSTG TSOL-I TSOL-F IF VR PD VCEO VECO IC PD Rating -55 to +100 -55 to +100 240 for 5 sec 260 for 10 sec 50 6 100 55 4.5 20 150 Unit C C C C mA V mW V V mA mW
H21A5
H21A6
NOTE: 1. Derate power dissipation linearly 1.67 mW/C above 25C. 2. RMA flux is recommended. 3. Methanol or isopropyl alcohols are recommended as cleaning agents. 4. Soldering iron tip 1/16" (1.6mm) minimum from housing.
ELECTRICAL / OPTICAL CHARACTERISTICS
PARAMETER TEST CONDITIONS
(TA =25C) (All measurements made under pulse conditions)
SYMBOL DEVICES MIN TYP MAX UNITS
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 = 60 mA IR = 10 A VR = 3 V IF = 100 A, Ee = 0 IC = 1 mA, Ee = 0 VCE = 45 V, Ee = 0 IF = 5 mA, VCE = 5 V
VF VR IR BVECO BVCEO ICEO
All All All All All All H21A4 H21A5 H21A6 H21A4 H21A5 H21A6 H21A4 H21A5 H21A6 H21A5/6 H21A4 All All
-- 6.0 -- 6.0 55 -- 0.15 0.30 0.60 1.0 2.0 4.0 1.9 3.0 5.5 -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 8 50
1.7 -- 1.0 -- -- 100 -- -- -- -- -- -- -- -- -- 0.40 0.40 -- --
V A A V V nA
On-State Collector Current
IF = 20 mA, VCE = 5 V
IC(ON)
mA
IF = 30 mA, VCE = 5 V Saturation Voltage Turn-On Time Turn-Off Time IF = 20 mA, IC = 1.8 mA IF = 30 mA, IC = 1.8 mA IF = 30 mA, VCC = 5 V, RL = 2.5 K IF = 30 mA, VCC = 5 V, RL = 2.5 K VCE(SAT) ton toff
V V s s
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PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH H21A4
TYPICAL PERFORMANCE CURVES
Figure 1. Output Current vs. Input Current
10 8 6 4 2 1 .8 .6 .4 .2 .1 .08 .06 .04 .02 .01 .1 1 2 4 6 8 10 20 40 60 80 100 200 400 600 1000 -55 -40 -20 0 20 40 60 NORMALIZED TO I F = 20 mA VCE = 5 V PULSED PW = 100 sec PRR = 100 pps 10 8
H21A5
H21A6
Figure 2. Output Current vs. Temperature
NORMALIZED TO VCE = 1.5 V, I F = 5 mA, TA = 25 C INPUT PULSED IF = 100 mA IF = 60 mA
ICE(on), NORMALIZED OUTPUT CURRENT
ICE(on), NORMALIZED OUTPUT CURRENT
6 4
2 IF = 30 mA 1 .8 .6 .4 IF = 10 mA IF = 20 mA
.2
IF = 5 mA
80
100
IF , INPUT CURRENT (mA)
TA , AMBIENT TEMPERATURE (C)
Figure 4. Leakage Current vs. Temperature EMITTER DETECTOR Figure 3. VCE(SAT) vs. Temperature
3
103 103
ICEO, NORMALIZED DARK CURRENT
2
VCE(SAT), NORMALIZED
PULSED PW = 100 s, PRR = 100 pps
3.6 mA IC = IF 60 mA
102
IR, NORMALIZED LEAKAGE CURRENT
NORMALIZED TO IC 1.8 mA , TA = 25C = 30 mA IF
1.8 mA IC = IF 20 mA
VCE = 45 V VCE = 10 V
102
101
101
1 IC 1.8 mA = IF 30 mA 0.8 IC 0.9 mA = IF 15 mA 0.6
1 NORMALIZED TO VCE = 45 V TA = 25 C 0.1 25 50 75 100
1 NORMALIZED TO VCE = 5 V TA = 25 C 0.1 25 50 75 100
-50
-25
0
25
50
75
100
TA , AMBIENT TEMPERATURE (C)
T A, AMBIENT TEMPERATURE (C)
T A, AMBIENT TEMPERATURE (C)
Figure 6. Output Current vs. Distance Figure 5. Switching Speed vs. RL
4.5 4 1.00
d, DISTANCE (mils)
78.7 157.5 236.2 315 393.7
3
ton toff
ICE(on), NORMALIZED OUTPUT CURRENT
tON, AND tOFF NORMALIZED
PW = 300 s PRR = 100 pps 7.5 IF = AMPS, VCC = 5V RL
NORMALIZED TO RL = 2.5 K
.1
2
1.5
BLACK SHIELD .01
+
E D
NORMALIZED TO VALUE WITH SHIELD REMOVED
+
d o
BLACK SHIELD
d o
1 .9 .8 .7 .6 .5 .45
RL IF
+
VCC
.001
1K
2K
3K
4K
5K
6K
7K
8K
9K 10K
.0001
0
2
4
6
8
10
R L , LOAD RESISTANCE ()
d, DISTANCE (mm)
DS300291
6/05/01
3 OF 4
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PHOTOTRANSISTOR OPTICAL INTERRUPTER SWITCH H21A4 H21A5 H21A6
DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body,or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.
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