OPTOLOGIC® OPTICAL
INTERRUPTER SWITCH
H21LTB |
H21LTI |
H21LOB |
H21LOI |
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PACKAGE DIMENSIONS
0.472 (12.0) |
Ø 0.133 (3.4) |
0.457 (11.6) |
Ø 0.126 (3.2) |
C |
(2X) |
L |
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0.249 (6.35) |
+ |
D |
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C |
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0.243 (6.15) |
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L |
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E |
+ |
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) |
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0.315 (8.0) |
0.119 (3.0) |
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C
L
0.055 (1.40)
0.045 (1.14)
0.295 (7.5) |
0.055 (1.40) |
0.272 (6.9) |
0.045 (1.14) |
2 3
4
1 5
0.020 (0.51) (SQ)
Optical
C
L
0.110 (2.8)
0.091 (2.3)
PIN 1 ANODE PIN 2 CATHODE PIN 3 VCC
PIN 4 VO
PIN 5 GND
NOTES:
1.Dimensions for all drawings are in inches (mm).
2.Tolerance of ± .010 (.25) on all non-nominal dimensions unless otherwise specified.
PART NUMBER DEFINITIONS
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H21LTB |
Totem-pole, buffer output |
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H21LTI |
Totem-pole, inverter output |
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H21LOB |
Open-collector, buffer output |
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H21LOI |
Open-collector, inverter output |
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INPUT/OUTPUT TABLE
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Part |
LED |
Output |
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Number |
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H21LTB |
On |
High |
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H21LTB |
Off |
Low |
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H21LTI |
On |
Low |
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H21LTI |
Off |
High |
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H21LOB |
On |
High |
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H21LOB |
Off |
Low |
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H21LOI |
On |
Low |
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H21LOI |
Off |
High |
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DESCRIPTION
The H21L series are slotted optical switches designed for multipurpose non contact sensing. They consist of a GaAs LED and a silicon OPTOLOGIC®. sensor packaged in an injection molded housing and facing each other across a .124” (3.15 mm) gap. The output is either inverting or non-inverting, with a choice of totem-pole or open-collector configuration for TTL/CMOS compatibility
FEATURES
• Low cost |
• Choice of inverter or buffer output functions |
• 0.035” apertures |
• Choice of open-collector or totem-pole output configuration |
• Black plastic opaque housing |
• TTL/CMOS compatible output functions |
• Mounting tabs on housing |
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2001 Fairchild Semiconductor Corporation |
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DS300294 |
5/29/01 |
1 OF 8 |
www.fairchildsemi.com |
H21LTB H21LTI
SCHEMATICS
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VOLTAGE |
ANODE |
(1) |
REGULATOR |
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LA |
CATHODE |
(2) |
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VOLTAGE |
ANODE |
(1) |
REGULATOR |
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LA |
CATHODE |
(2) |
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OPTOLOGIC® OPTICAL INTERRUPTER SWITCH
H21LOB H21LOI
V |
CC |
(3) |
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V |
OUT |
(4) |
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GND (5) |
V |
CC |
(3) |
V |
OUT |
(4) |
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H21LTB
Totem-Pole Output Buffer
H21LTI Totem-Pole Output inverter
GND (5)
ANODE (1) VOLTAGE
REGULATOR
LA
CATHODE (2)
ANODE (1) VOLTAGE
REGULATOR
LA
CATHODE (2)
V |
CC |
(3) |
V |
OUT |
(4) |
H21LOB |
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Open-Collector Output Buffer |
GND (5)
V |
CC |
(3) |
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V |
OUT |
(4) |
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GND (5)
H21LOI
Open-Collector Output Inverter
www.fairchildsemi.com |
2 OF 8 |
5/29/01 DS300294 |
OPTOLOGIC® OPTICAL
INTERRUPTER SWITCH
H21LTB |
H21LTI |
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H21LOB |
H21LOI |
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ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) |
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Parameter |
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Symbol |
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Rating |
Units |
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Operating Temperature |
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TOPR |
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-40 to +85 |
°C |
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Storage Temperature |
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TSTG |
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-40 to +85 |
°C |
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Soldering Temperature (Iron)(3,4,5,6) |
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TSOL-I |
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240 for 5 sec |
°C |
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Soldering Temperature (Flow)(3,4,6) |
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TSOL-F |
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260 for 10 sec |
°C |
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INPUT (EMITTER) |
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Continuous Forward Current |
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IF |
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50 |
mA |
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Reverse Voltage |
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VR |
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6 |
V |
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Power Dissipation(1) |
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PD |
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100 |
mW |
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OUTPUT (SENSOR) |
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Output Current |
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IO |
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50 |
mA |
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Supply Voltage |
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VCC |
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4.0 to 16 |
V |
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Output Voltage |
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VO |
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30 |
V |
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Power Dissipation(2) |
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PD |
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150 |
mW |
NOTES (Applies to Max Ratings and Characteristics Tables.)
1.Derate power dissipation linearly 1.67 mW/°C above 25°C.
2.Derate power dissipation linearly 2.50 mW/°C above 25°C.
3.RMA flux is recommended.
4.Methanol or isopropyl alcohols are recommended as cleaning agents.
5.Soldering iron 1/16” (1.6mm) from housing.
6.As long as leads are not under any stress or spring tension.
DS300294 |
5/29/01 |
3 OF 8 |
www.fairchildsemi.com |