Fairchild H21B1 Photodarlington optical interrupter switch Datasheet

PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H21B1
H21B2
H21B3
PACKAGE DIMENSIONS
0.972 (24.7)
0.957 (24.3)
Ø 0.133 (3.4)
Ø 0.126 (3.2)
(2X)
0.472 (12.0)
0.457 (11.6)
CL
0.249 (6.35)
0.243 (6.15)
+
D
E
+
CL
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)
0.125 (3.2)
0.119 (3.0)
Optical
CL
0.315 (8.0)
SCHEMATIC
CL
0.110 (2.8)
0.091 (2.3)
.295 (7.5)
.272 (6.9)
2
3
1
4
PIN 1 ANODE
PIN 2 CATHODE
PIN 3 COLLECTOR
PIN 4 EMITTER
1
4
0.020 (0.51) (SQ)
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
Symbol
Rating
Unit
Operating Temperature
TOPR
-55 to +100
°C
Storage Temperature
TSTG
-55 to +100
°C
Soldering Temperature (Iron)(2,3 and 4)
TSOL-I
240 for 5 sec
°C
(Flow)(2 and 3)
TSOL-F
260 for 10 sec
°C
Continuous Forward Current
IF
50
mA
Reverse Voltage
VR
6
V
Power Dissipation(1)
PD
100
mW
Collector to Emitter Voltage
VCEO
30
V
Emitter to Collector Voltage
VECO
6
V
IC
40
mA
PD
150
mW
Soldering Temperature
INPUT (EMITTER)
OUTPUT (SENSOR)
Collector Current
Power Dissipation (TC =
25°C)(1)
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
H21B2
H21B3
ELECTRICAL/OPTICAL CHARACTERISTICS (TA =25°C)
PARAMETER
TEST CONDITIONS
SYMBOL
DEVICES
MIN
TYP
MAX
UNITS
INPUT (EMITTER)
Forward Voltage
IF = 60 mA
VF
All
—
—
1.7
V
Reverse Breakdown Voltage
IR = 10 µA
VR
All
6.0
—
—
V
Reverse Leakage Current
VR = 3 V
IR
All
—
—
1.0
µA
OUTPUT (SENSOR)
Emitter to Collector Breakdown
IF = 100 µA, Ee = 0
BVECO
All
7.0
—
—
V
Collector to Emitter Breakdown
IC = 1 mA, Ee = 0
BVCEO
All
30
—
—
V
Collector to Emitter Leakage
VCE = 25 V, Ee = 0
ICEO
All
—
—
100
nA
H21B1
0.5
—
—
H21B2
1.0
—
—
H21B3
2.0
—
—
H21B1
2.5
—
—
H21B2
5.0
—
—
H21B3
10
—
—
H21B1
7.5
—
—
H21B2
14
—
—
H21B3
25
—
—
All
—
—
1.0
V
H21B1/2
—
—
1.5
V
All
—
45
—
COUPLED
IF = 2 mA, VCE = 1.5 V
On-State Collector Current
IF = 5 mA, VCE = 1.5 V
IC(ON)
IF = 10 mA, VCE = 1.5 V
Saturation Voltage
Turn-On Time
Turn-Off Time
IF = 10 mA, IC = 1.8 mA
IF = 60 mA, IC = 50 mA
VCE(SAT)
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
© 2002 Fairchild Semiconductor Corporation
Page 3 of 6
ton
mA
µs
All
—
7
—
All
—
250
—
All
—
45
—
toff
µs
6/13/02
PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H21B1
H21B2
H21B3
Figure 1. Output Current vs. Input Current
ICE(on), NORMALIZED OUTPUT CURRENT
100
80
60
40
20
10
8
6
4
2
NORMALIZED TO
I F = 5 mA
VCE = 1.5 V
1
.8
.6
.4
PULSED
PW = 100 µsec
PRR = 100 pps
.2
.1
.08
.06
.04
.02
1
2
4
6
8 10
20
40
60 80 100
200
400
600
1000
IF , INPUT CURRENT (mA)
Figure 2. Output Current vs. Temperature
100
ICE(on), NORMALIZED OUTPUT CURRENT
NORMALIZED TO
VCE = 1.5 V, I F = 5 mA, TA = 25 °C
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
VCE(SAT), NORMALIZED
2
PULSED
PW = 100 µs, PRR = 100 pps
IC
50 mA
=
IF
60 mA
1
IC
3.6 mA
=
IF
20 mA
0.8
IC 1.8 mA
=
IF
10 mA
IC 0.9 mA
=
IF
5 mA
0.6
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
H21B2
H21B3
Figure 4. Leakage Current vs. Temperature
DETECTOR
104
EMITTER
104
NORMALIZED TO
VCE = 25 V
T A = 25 °C
103
IR, NORMALIZED LEAKAGE CURRENT
ICEO, NORMALIZED DARK CURRENT
103
VCE = 25 V
102
VCE = 10 V
10
102
NORMALIZED TO
VR = 5 V
TA = 25 °C
10
1
0.1
1
25
50
75
100
0.1
25
50
T A, AMBIENT TEMPERATURE (°C)
75
100
T A, AMBIENT TEMPERATURE (°C)
Figure 6. Output Current vs. Distance
d, DISTANCE (mils)
Figure 5. Switching Speed vs. RL
RL
IF
tON, AND tOFF NORMALIZED
1
.6
.4
PW = 300 µs
PRR = 100 pps
7.5
AMPS, VCC = 5V
IF =
RL
toff
NORMALIZED TO
RL = 750 Ω
ton
.2
0.1
10
20
40
60 80 100
75
200
400
157.5
236.2
315
393.7
+
VCC
2
.8
1.00
ICE(on), NORMALIZED OUTPUT CURRENT
4
78.7
600 800 1000 1500
750
.1
NORMALIZED
TO VALUE WITH
SHIELD
REMOVED
BLACK
SHIELD
.01
+
E
D
d
o
+
BLACK
SHIELD
d
.001
.0001
o
0
2
4
6
8
10
d, DISTANCE (mm)
R L , LOAD RESISTANCE (Ω)
© 2002 Fairchild Semiconductor Corporation
Page 5 of 6
6/13/02
PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H21B1
H21B2
H21B3
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 the labeling, can be reasonably expected to
result in a significant injury of the user.
© 2002 Fairchild Semiconductor Corporation
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.
Page 6 of 6
6/13/02
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