توضیحات
سنسور اثر هال مغناطيس Hall Module
سنسور اثر هال Hall sensor داراي سنسور A3142 است. سنسور A3142 همانند سوييچ اثر هال است. سنسور A3142 داراي پايه تغذيه و خروجي – output و زمين – GND است. همانطور که گفته شد ازسنسور A3142 جهت تشخيص ميدان مغناطيسي- Magnetic FIELD استفاده مي‌شود. با ايجاد ميدان مغناطيسي در نزديکي سنسور اثر هال، خروجي سنسور به پايين ترين سطح خود خواهد رسيد. در نتيجه با نزديک کردن يک شي مغناطيسي به سنسور، سنسور به پايين ترين سطح رسيده و ميدان مغناطيسي را تشخيص خواهد داد. سنسور اثر هال داراي سنسور A3142 و سه پايه به ترتيب Signal, VCC, GND مي‌باشد.
Description
SENSITIVE HALL-EFFECT SWITCHES
FOR HIGH-TEMPERATURE OPERATION
These Hall-effect switches are monolithic integrated circuits with
tighter magnetic specifications, designed to operate continuously over
extended temperatures to +150°C, and are more stable with both
temperature and supply voltage changes. The unipolar switching
characteristic makes these devices ideal for use with a simple bar or rod
magnet. The four basic devices (3141, 3142, 3143, and 3144) are
identical except for magnetic switch points.
Each device includes a voltage regulator for operation with supply
voltages of 4.5 to 24 volts, reverse battery protection diode, quadratic
Hall-voltage generator, temperature compensation circuitry, smallsignal amplifier, Schmitt trigger, and an open-collector output to sink
up to 25 mA. With suitable output pull up, they can be used with
bipolar or CMOS logic circuits. The A3141– and A3142– are improved replacements for the UGN/UGS3140–; the A3144– is the
improved replacement for the UGN/UGS3120–.
The first character of the part number suffix determines the device
operating temperature range. Suffix ‘E–’ is for the automotive and
industrial temperature range of -40°C to +85°C. Suffix ‘L–’ is for the
automotive and military temperature range of -40°C to +150°C. Three
package styles provide a magnetically optimized package for most
applications. Suffix ‘–LT’ is a miniature SOT89/TO-243AA transistor
package for surface-mount applications; suffix ‘–UA’ is a three-lead
ultra-mini-SIP.
FEATURES and BENEFITS
Superior Temp. Stability for Automotive or Industrial Applications
4.5 V to 24 V Operation … Needs Only An Unregulated Supply
Open-Collector 25 mA Output … Compatible with Digital Logic
Reverse Battery Protection
Activate with Small, Commercially Available Permanent Magnets
Solid-State Reliability
Small Size
Resistant to Physical Stress
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