AH402H
AH402H is High Voltage Hall Effect Switch Sensor manufactured by Alfa Electronics.
Features
- Operates from 3.0V to 60 V supply voltage
- Overvoltage protection capability up to 80 V
- Highest ESD performance up to ±4 k V
- Short-circuit protected open-drain output
- Wide temperature range from -40 °C to 150 °C
- Reverse-voltage protection at VSUP pin
- Ideal sensor for applications in extreme automotive and industrial environments
- Tiny SOT23 (-SU) package and TO92 (-UA )package
3. Potential Applications
- Brushless DC motor mutation
- Speed measurement
- Revolution counting
- Angular position detection
- Proximity detection
4. Block Diagram
The circuit includes temperature pensated voltage regular, Hall plate, signal amplifier and Schmitt-Trigger in single silicon chip. The regulated voltage provides the reference voltage for the hall plate. A magnetic field perpendicular to the sensor surface generates a hall voltage, which is amplified and then sent to a Schmitt trigger. A protection diode against reverse power supply is integrated.
R E V 2.1 07 / 2 0 2 2
WW W. a l fa el ec s. co m
High Voltage Hall Effect Switch Sensor
5. Pin Description
Alfa Electronics Co., Ltd
TO92S
6. Ordering information
Partnumber
AH402HUA AH402HSU package
TO92S SOT23
SOT23
Packing Bulk, 1000 pieces/bag Reel, 3000pieces/reel
Ambient, TA -40℃ to 150℃ -40℃ to 150℃
7. Pin assignment
SOT23-3LPin number
1 2 3
TO92SPin number
1 2 3
Name
VSUP GND VOUT
Function
Power supply Ground
Open collector output with a pull-up...