Page 1
PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H22B1 H22B2 H22B3
PACKAGE DIMENSIONS
0.472 (12.0)
0.457 (11.6)
C
L
.133 (3.38)
.073 (1.85)
0.249 (6.35)
0.243 (6.15)
0.125 (3.2)
0.119 (3.0)
.295 (7.5)
.272 (6.9)
+
E+
2
1
D
0.129 (3.3)
0.119 (3.0)
C
L
3
4
0.020 (0.51) (SQ)
C
0.39 (1.00)
0.34 (0.85)
0.433 (11.0)
0.422 (10.7)
.315 (8.00)
L
Optical
0.110 (2.8)
0.091 (2.3)
PIN 1 ANODE
PIN 2 CATHODE
PIN 3 COLLECTOR
PIN 4 EMITTER
NOTES:
1. Dimensions for all drawings are in inches (mm).
2. Tolerance of ± .010 (.25) on all non-nominal dimensions unless
otherwise specified.
C
L
SCHEMATIC
1
2
4
3
DESCRIPTION
The H22B1, H22B2 and H22B3 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 I
© 2002 Fairchild Semiconductor Corporation
C(ON)
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Page 2
PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H22B1 H22B2 H22B3
ABSOLUTE MAXIMUM RATINGS
(T
= 25°C unless otherwise specified)
A
Parameter Symbol Rating Unit
Operating Temperature
Storage Temperature
Soldering Temperature (Iron)
Soldering Temperature (Flow)
(2,3 and 4)
(2 and 3)
T
T
T
SOL-I
T
SOL-F
OPR
STG
-55 to +100 °C
-55 to +100 °C
240 for 5 sec °C
260 for 10 sec °C
INPUT (EMITTER)
Continuous Forward Current
Reverse Voltage
Power Dissipation
(1)
I
F
V
R
P
D
50 mA
6V
100 mW
OUTPUT (SENSOR)
Collector to Emitter Voltage
Emitter to Collector Voltage
Collector Current
Power Dissipation (T
= 25°C)
C
(1)
V
V
CEO
ECO
I
C
P
D
30 V
6V
40 mA
150 mW
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
Page 3
OPTICAL INTERRUPTER SWITCH
H22B1 H22B2 H22B3
ELECTRICAL/OPTICAL CHARACTERISTICS
PARAMETER TEST CONDITIONS SYMBOL DEVICES MIN TYP MAX UNITS
INPUT (EMITTER)
I
Forward Voltage
Reverse Breakdown Voltage
Reverse Leakage Current
OUTPUT (SENSOR)
Emitter to Collector Breakdown
Collector to Emitter Breakdown
Collector to Emitter Leakage
COUPLED
On-State Collector Current
Saturation Voltage
Turn-On Time
Turn-Off Time
= 60 mA V
F
I
= 10 µA V
R
V
= 3 V I
R
I
= 100 µA, E
F
I
= 1 mA, E
C
V
= 25 V, E
CE
I
= 2 mA, V
F
= 5 mA, V
I
F
= 10 mA, V
I
F
I
= 10 mA, I
F
I
= 60 mA, I
F
= 10 mA, V
I
F
R
= 750 Ω
L
I
= 60 mA, V
F
= 75 Ω
R
L
I
= 10 mA, V
F
R
= 750 Ω
L
I
= 60 mA, V
F
= 75 Ω
R
L
= 0 BV
e
= 0 BV
e
= 0 I
e
= 1.5 V
CE
= 1.5 V
CE
= 1.5 V
CE
= 1.8 mA
C
= 50 mA
C
= 5 V,
CC
= 5 V,
CC
= 5 V,
CC
= 5 V,
CC
(T
=25°C)
A
CEO
I
C(ON)
V
CE(SAT)
t
t
PHOTODARLINGTON
F
R
R
ECO
CEO
on
off
All ——1.7 V
All 6.0 ——V
All ——1.0 µA
All 7.0 ——V
All 30 —— V
All ——100 nA
H22B1 0.5 ——
H22B2 1.0 ——
H22B3 2.0 ——
H22B1 2.5 ——
H22B2 5.0 ——
H22B3 10 ——
H22B1 7.5 ——
H22B2 14 ——
H22B3 25 ——
All ——1.0 V
H22B1/2 ——1.5 V
All — 45 —
All — 7 —
All — 250 —
All — 45 —
mA
µs
µs
© 2002 Fairchild Semiconductor Corporation
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PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H22B1 H22B2 H22B3
100
80
60
40
20
10
8
6
4
2
1
.8
.6
.4
, NORMALIZED OUTPUT CURRENT
.2
CE(on)
I
.1
.08
.06
.04
.02
1
100
IF = 100 mA
10
IF = 60 mA
IF = 30 mA
IF = 20 mA
, NORMALIZED OUTPUT CURRENT
IF = 10 mA
1
CE(on)
I
IF = 5 mA
Figure 1. Output Current vs. Input Current
2 4 6 8 10 20 40 60 80 100 200 400 600 1000
Figure 2. Output Current vs. Temperature
I
, INPUT CURRENT (mA)
F
NORMALIZED TO
IF = 5 mA, TA = 25 °C
= 1.5 V,
V
CE
INPUT PULSED
NORMALIZED TO
IF = 5 mA
= 1.5 V
V
CE
PULSED
P
= 100 µsec
W
PRR
= 100 pps
© 2002 Fairchild Semiconductor Corporation
IF = 2 mA
0.1
2
1
, NORMALIZED
0.8
CE(SAT)
V
0.6
0.4
-50 -25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
Figure 3. V
I
= 50 mA
C
IF60 mA
I
= 3.6 mA
C
IF20 mA
-50 -25 0 25 50 75 100
TA, AMBIENT TEMPERATURE (°C)
vs. Temperature
CE(SAT)
NORMALIZED TO
IC = 1.8 mA
, T
10 mA
= 1.8 mA
I
C
IF10 mA
A
I
F
PULSED
PW = 100 µs, PRR = 100 pps
= 25°C
= 0.9 mA
I
C
IF5 mA
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Page 5
OPTICAL INTERRUPTER SWITCH
H22B1 H22B2 H22B3
Figure 4. Leakage Current vs. Temperature
DETECTOR
PHOTODARLINGTON
EMITTER
4
2
1
.8
NORMALIZED
.6
OFF
.4
AND t
,
ON
t
.2
4
10
3
10
2
10
10
NORMALIZED DARK CURRENT
,
CEO
I
1
0.1
25
NORMALIZED TO
V
VCE = 25 V
T
, AMBIENT TEMPERATURE (°C)
A
Figure 5. Switching Speed vs. RL
PW = 300 µs
PRR = 100 pps
7.5
=
AMPS, VCC = 5V
I
F
R
L
NORMALIZED TO
= 750 Ω
R
L
= 25 V
CE
TA = 25 °C
VCE = 10 V
50 75 100
R
IF
t
off
L
+
V
CC
t
on
4
10
3
10
2
10
10
NORMALIZED LEAKAGE CURRENT
,
R
I
1
0.1
25
NORMALIZED TO
V
= 5 V
R
TA = 25 °C
50 75 100
T
, AMBIENT TEMPERATURE (°C)
A
Figure 6. Output Current vs. Distance
1.00
.1
.01
NORMALIZED OUTPUT CURRENT
,
.001
CE(on)
I
78.7 157.5 236.2 315 393.7
BLACK
SHIELD
+
D
d
+
E
o
d, DISTANCE (mils)
NORMALIZED
TO VALUE WITH
SHIELD
REMOVED
BLACK
SHIELD
d
o
0.1
10 20 40 60 80 100
, LOAD RESISTANCE (Ω)
R
L
200 400 600 800
© 2002 Fairchild Semiconductor Corporation
75075
1000 1500
Page 5 of 6
.0001
0246810
d, DISTANCE (mm)
6/13/02
Page 6
PHOTODARLINGTON
OPTICAL INTERRUPTER SWITCH
H22B1 H22B2 H22B3
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.
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.
© 2002 Fairchild Semiconductor Corporation
Page 6 of 6
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