HOA7720/7730 Series
Connectorized Transmissive
Optoschmitt Sensor
DESCRIPTION
The HOA7720/7730 Series consists of an infrared emitting
diode facing an Optoschmitt detector encased in a black
thermoplastic housing. The photodetector consists of a
photodiode, amplifier, voltage regulator and Schmitt trigger
with either of two output configurations:
Totem pole (HOA7720-M11)
Open collector (HOA7730-M11)
The totem pole output is well-suited for applications which
require fast transition times. The open collector allows the
output of the sensor to interface with circuit elements driven by
supply voltages other than Vcc supply.
The inverting logic provides a high output when the optical path
is interrupted, and a low output when the path is clear.
The infrared emitting diode is biased internally, eliminating the
need for any external circuitry. Interconnection is simplified
through the use of the integral Tyco three-pin connector.
Both the emitter and detector have a 0.508 mm x 1,78 mm
[0.020 in x 0,070 in] vertical aperture. The narrow aperture is
ideal for use in applications in which the maximum rejection of
ambient light is important, and the maximum position resolution
is desired.
The HOA7220/7330 series employ plastic molded
components. Housing material is opaque polycarbonate.
Housings are soluble in chlorinated hydrocarbons and ketones.
Recommended cleaning agents are methanol and isopropanol.
FEATURES AND BENEFITS
Direct TTL interface
No interface circuits required
Inverting logic
Two output options
High resolution
3.00 mm [0.118] slot width
Integral 3-pin connector
POTENTIAL APPLICATIONS
Industrial:
Flag presence/absence detection
Edge detection
Rotary/linear encoders
Medical:
Edge sensing for labels and paper
Needle presence/absence detection
End of motion/travel sensing
Rotary/linear encoders
HOA7720/7730 Series
2 www.honeywell.com/sensing
Table 1. HOA7720-M11 and HOA7730-M11 Absolute Maximum Ratings (At 25 ºC [77 ºF] free air temperature unless
otherwise noted.)
Characteristic
Parameter
Operating temperature range
-40 ºC to 70 ºC [-40 ºF to 158 ºF]
Storage temperature range
-40 ºC to 85 ºC [-40 ºF to 185 ºF]
Power dissipation
220 mW
Supply voltage
5.5 V
Supply current
40 mA
Low level output current
12.8 mA
Duration of output: short to Vcc or ground
1.0 s
Applied output voltage1
35 V
Notes:
1. Applies to HOA7730 only.
Table 2. HOA7720-M11 Electrical Characteristics (At 25 ºC [77 ºF] unless otherwise noted.)
Characteristic
Min
Typ.
Max
Unit
Test Condition
Operating supply voltage1
4.5
–
5.5
V
TA = 25 ºC
Supply current
–
–
40
mA
VCC = 5.5 V
Low level output voltage2
–
–
0.4
V
VCC = 4.5 V, IOL = 12.8 mA
High level output current2
2.4
–
–
V
VCC = 4.5 V, IOH = -800 µA
Short circuit output current
-20
–
-100
mA
VCC = 5.25 V, Output = GND
Hysteresis3
–
50
–
%
–
Propagation delay, low-high, high-low
–
5
–
µs
VCC = 5 V
Output rise time, output fall time
–
70
–
ns
RL = 8 TTL loads
Notes:
1. Add a bypass capacitor, 0.1 µF typ., between Vcc and GND near the device in order to stabilize power supply line.
2. Output is HI when the optical path is interrupted.
3. Hysteresis is defined as the difference between the operating and release threshold intensities and is expressed as a
percentage of the operate threshold intensity.
Table 3. HOA7730-M11 Electrical Characteristics (At 25 ºC [77 ºF] unless otherwise noted.)
Characteristic
Min
Typ.
Max
Unit
Test Condition
Operating supply voltage1
4.5
–
5.5
V
TA = 25 ºC
Supply current
–
–
40
mA
VCC = 5.5 V
Low level output voltage2
–
–
0.4
V
VCC = 4.5 V, IOL = 12.8 mA
High level output current2
–
–
100
µA
VCC = 4.5 V, VOH = 28 V
Hysteresis3
–
50
–
%
–
Propagation delay, low-high, high-low
–
5
–
µs
VCC = 5 V
Output rise time, output fall time
–
70
–
ns
RL = 390 Ω
Notes:
1. Add a bypass capacitor, 0.1 µF typ., between Vcc and GND near the device in order to stabilize power supply line.
2. Output is HI when the optical path is interrupted.
3. Hysteresis is defined as the difference between the operating and release threshold intensities. Expressed as a percentage of
the operate threshold intensity.
Connectorized Transmissive Optoschmitt Sensor
Honeywell Sensing and Control 3
Performance Graphics (typical values)
Figure 1. Inverter, Totem Pole
Figure 2. Inverter, Open Collector
Figure 3. Output Rise Time and Output Fall Time vs
Temperature
Figure 4. Delay Time vs Temperature
Figure 5. Switching Waveform for Inverters
Sensing and Control
Honeywell
1985 Douglas Drive North
Golden Valley, MN 55422
www.honeywell.com/sensing
006496-1-EN
November 2011
© 2011 Honeywell International Inc. All rights reserved.
Figure 6. Mounting Dimensions (For reference only: mm (in).)
10,5
[0.413] 3,0
[0.118]
3,4
[0.134]
2,50
[0.098] 19,0
[0.748]
4,50
[0.177]
6,0
[0.236]
31,5
[1.240]
12,0
[0.472]
7,9
[0.311]
7,5
[0.295]
6,8
[0.268]
5,9
[0.232] Pin 1 = Ground
Pin 2 = Output
Pin 3 = Vcc
6,0
[0.236]
EMITTER
DETECTOR
Optical CL
1 2 3
7,8
[0.307]
6,3
[0.248]
2X 3,20 DIA.
[0.126]
Tyco Connector: 292132-03
Tyco Mating Connector: 173977-3
Order Guide
Catalog Listing
Description
HOA7720-M11
Transmissive Optoschmitt sensor, totem pole output
HOA7730-M11
Transmissive Optoschmitt sensor, open collector output
WARNING
PERSONAL INJURY
DO NOT USE these products as safety or emergency stop
devices or in any other application where failure of the
product could result in personal injury.
Failure to comply with these instructions could result in
death or serious injury.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of
defective materials and faulty workmanship. Honeywell’s
standard product warranty applies unless agreed to otherwise
by Honeywell in writing; please refer to your order
acknowledgement or consult your local sales office for specific
warranty details. If warranted goods are returned to Honeywell
during the period of coverage, Honeywell will repair or replace,
at its option, without charge those items it finds defective. The
foregoing is buyer’s sole remedy and is in lieu of all other
warranties, expressed or implied, including those of
merchantability and fitness for a particular purpose. In no
event shall Honeywell be liable for consequential, special,
or indirect damages.
While we provide application assistance personally, through
our literature and the Honeywell web site, it is up to the
customer to determine the suitability of the product in the
application.
Specifications may change without notice. The information we
supply is believed to be accurate and reliable as of this
printing. However, we assume no responsibility for its use.
WARNING
MISUSE OF DOCUMENTATION
The information presented in this product sheet is for
reference only. Do not use this document as a product
installation guide.
Complete installation, operation, and maintenance
information is provided in the instructions supplied with
each product.
Failure to comply with these instructions could result in
death or serious injury.
SALES AND SERVICE
Honeywell serves its customers through a worldwide network
of sales offices, representatives and distributors. For
application assistance, current specifications, pricing or name
of the nearest Authorized Distributor, contact your local sales
office or:
E-mail: info.sc@honeywell.com
Internet: www.honeywell.com/sensing
Phone and Fax:
Asia Pacific +65 6355-2828
+65 6445-3033 Fax
Europe +44 (0) 1698 481481
+44 (0) 1698 481676 Fax
Latin America +1-305-805-8188
+1-305-883-8257 Fax
USA/Canada +1-800-537-6945
+1-815-235-6847
+1-815-235-6545 Fax