AS1805 High Performance Hall-Effect Sensor IC Datasheet
●Using CMOS process, the AS1805 is designed for high performance omnipolar detection hall-effect application, such as cover switch, contactless switch, solid state switch and lid close sensor etc battery operation. The hall IC integrated an on-chip hall voltage generator for magnetic sensing, a comparator that amplifiers the hall voltage, a Chopper amplifier, a Schmitt trigger to provide switching hysteresis for noise rejection, and a complementary output.
●AS1805 is designed to respond to alternating North and South poles. When the magnetic flux density (B) is larger than operate point (B-OP), the output will be turned on (low), the output is held until the magnetic flux density (B) is lower than release point (B-RP), then turn off (high).
●The device is available in SOT23-5L & SOT553 Package and is rated over the -40°C to 125°C. The all packages are RoHS and Green compliant.
■Features:
●Input Voltage Range : 2.5V to 5.5V
●Micro-power consumption ideal for battery power applications
●Omnipolar Operation, easy to use as output
●Very high sensitivity hall sensor
●CMOS process technology
●Chopper stabilization amplifier stage
●Magnetic Sensitivity (typical) B-OP=±35Gauss, B-RP=±32Gauss
●Good RF noise immunity
●No need pull-up resistor
●Small Solution Size
●RoHS & Green Compliant
●SOT23-5L & SOT553 Packages
●-40℃ to +125 ℃ Temperature Range
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AS1805 、 AS1805XXX 、 AS1805S5RN 、 AS1805WRN 、 AS1805S5RY 、 AS1805WRY |
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High Performance Hall-Effect Sensor IC 、 Magnetic Sensor ICs |
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[ Smart Meter ][ Cover switch ][ Contact-less switch ] |
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Datasheet |
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Please see the document for details |
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SOT23-5L;SOT553 |
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English Chinese Chinese and English Japanese |
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15, Jan. 2022 |
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Version 1.1 |
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890 KB |
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