AH422 - High Sensitive Digital-Unipolar Hall Effect Sensor
Name VDD GND Vout Pin number 1 2 3 Description Power supply Ground Output Application example: VDD =5V A positive magnetic field is defined as a South pole near the marked side of the package.
TO92S （AH422） TO92S （AH422） SOT23（AH422） SOT23（AH422） Output Behavior AH422 output behavior REV1.0 0
AH422 High Sensitive Digital-Unipolar Hall Effect Sensor Alfa Electronics Co.,Ltd Introduction AH422, unipolar Hall effect switch, designed with Bipolar technology, is south sensitive unipolar Hall Effective switch and includes on-chip Hall element voltage generator, a voltage regulator for operation with supply voltages of 3.8 to 40V, temperature compensation circuitry, small-signal amplifier, Schmitt trigger and an open-collector output.
The sensor is designed to respond to South poles.
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AH422 Features
* Miniature construction
* High sensitivity of 30/20Gauss (typ.)
* Wide voltage range of 3.8 Vdc to 40 Vdc
* Temperature range of -40 °C to 125 °C
* Highest ESD performance up to ±4 kV
* Open Collector Output Applications
* BLDC Motor Commutation
* Flow sensor
