Honeywell Linear Hall-Effect Sensor ICs
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Transcript of Honeywell Linear Hall-Effect Sensor ICs
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Copyright March 2012 Honeywell International Inc. All rights reserved.
PRODUCT TRAINING MODULE:
Linear Hall-effect Sensor ICs
SS39ET, SS49E, SS59ET Series
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Copyright March 2012 Honeywell International Inc. All rights reserved.
Agenda
In this training module, you w ill learn the following aboutHoneywells Linear Hall-effect Sensor ICs (integrated circui ts): A broad portfolio that includes various
package styles and packagingoptions
Their key features and how they
benefit design engineers The Industrial and Medical applications
in which they may potentially be used How to obtain more information
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Introduction
Honeywell offers a variety of Linear Hall-effect Sensor ICs to meet awide range of industrial and medical application needs
They are designed to monitor magnetic fields from a permanentmagnet or an electromagnet
Honeywell has engineered these devices
to enable top performance, precision,repeatability, and ruggedness
Various package styles include: Subminiature SOT-23: SS39ET (new) Flat TO-92 straight leads: SS49E, SS49E-L,
and SS49E-T3
Flat TO-92 formed leads: SS49E-F andSS49E-T2
SOT-89: SS59ET
Various packaging options includetape and reel, bulk packaging, and tape
in box (ammopack)
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Features and Benefits
Honeywells Linear Hall-effect Sensor ICs offer many features andbenefits, including:
Cost-effective Designed and manufactured for cost competitiveness All packages can be supplied on tape for automated, lower-cost assembly
Miniature and sub-miniature construction SS39ETs small footprint takes up little space on the PC board, often ideal forcompact designs with tight space requirements
Small size typically allows for more components to be placed onto the board
Flexible Interfaces with many electrical components without buffering
Responds to either positive or negative Gauss Responds to both North and South poles
Stable and accurate Thermally balanced integrated circuit allows for stable operation and accuracy
over the full temperature range
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Energy efficient Low voltage capability as low as 2.7 Vdc and reduced current consumption
of only 6 mA at 5 Vdc help make these products energy efficient
Easy PC board interface Single current sourcing output for common electronic circuits
Low noise output
Virtually eliminates the need for external filtering Wide operating temperature range
Temperature range of -40 C to 100 C [-40 F to 212 F] allows for use in awide range of environments
Features and Benefits (continued)
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Potential Applications Industrial
Tamper prevention in uti lity meters Thieves sometimes attempt to bypass the operation of an electric, gas or
water meter by attaching a strong magnet to it. The utility usage is
underestimated when the magnetsaturates the current transformer or slows the spinning wheel.
Install Honeywells Linear Hall-effect Sensor ICs in multiple locations insidethe meter to detect the abnormal presence of a magnetic field.Send an alarm to the utility company or recordthis fraudulent activity in memory for access
at a later date.
Honeywells Linear Hall-effect Sensors may potentially be used inseveral Industrial applications, including:
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Potential Applications Industrial (continued)
Scooters and electr ic bikes Honeywells Linear Hall-effect Sensor ICs may be used to detect handlebar
and throttle position on scooters and e-bikes
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Potential Applications Industrial (continued)
Magnetic code reading in safes, security, and building accesscontrol systems A secure electronic lock can be designed using an array of linear magnetic
sensors configured to detect a magnetic pattern. If a strong external magnetwere brought in proximity to the array, it would be read as a random attemptand could trigger an alarm
Honeywells Linear Hall-effect Sensor ICs may be used to unlock the systemonly if the magnetic field read by each sensor is of the correct polarity andwithin acceptable amplitude limits
Without reproducing the exact magnetic flux pattern, it would be virtuallyimpossible to unlock the system with a single, or even multiple, strongmagnets
Honeywells Linear Hall-effect SensorICs provide sensitivity, output, and verysmall size
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Potential Applications Industrial (continued)
Speed adjustment in tools and appliances Honeywells Linear Hall-effect Sensor ICs may be used as a speed
adjustment trigger in tools and appliances
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Potential Applications Industrial (continued)
Water pump control in heavy-duty equipment and appliances A water pump is essentially a special application of an electric motor; these
pumps are commonly manufactured for home appliances Honeywells Linear Hall-effect Sensor ICs may be used to generate an
enhanced control signal for better resolution of the rotor position, which canimprove the motor's efficiency
A crude RPM measurement would verify that the pump is working properly;the output of the sensor may be used as analarm or a shut-off signal to help preventmotor overload
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Potential Applications Industrial (continued)
Pump control in aquariums A pump may use one or more valves, engage a clutch or gear to begin, or
move a lever or piston a specified distance Honeywells Linear Hall-effect Sensor ICs may be used to verify that the
valve, clutch, lever or piston is in the specified position
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Potential Applications Industrial (continued)
Current sensing in motors Honeywells Linear Hall-effect Sensor
ICs may be used for basic currentsensing for motor load monitoring anddetection
Current sensing in appliances Honeywells Linear Hall-effect Sensor
ICs may be used to monitor the current
powering the electromagnets in theappliances motor
If the current is not within its normalrange, the logic could also performoverload or motor malfunction detection
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Potential Applications Industrial (continued)
General linear or angular displacement sensing Honeywells Linear Hall-effect Sensor ICs may be used for simple linear or
angular displacement sensing
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Potential Applications Medical
Position sensing in infusion pumps Honeywells Linear Hall-effect Sensor ICs may be
used to provide reliable, accurate linear positionsensing in infusion pumps
Their small size allows for use in compactdesigns
They may be used in automated, lower-costassemblies, helping to minimize replacementcosts
Honeywells Linear Hall-effect Sensors maypotentially be used in Medical applications,
such as:
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Online Resources
www.honeywell.com/sensing
Interested in more information? Click here:
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About Honeywell Sensing and Control Products
For more information about all of Honeywell Sensing andControl sensor and switch solutions, visitwww.honeywell.com/sensing
www.honeywell.com/sensing
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C i h M h 2012 H ll I i l I All i h d