AH402F
AH402F is High Voltage Hall Effect Switch manufactured by Alfa Electronics.
Features
- Operates from 3.8 V to 60 V supply voltage
- Overvoltage protection capability up to 80 V
- Highest ESD performance up to ±4k V
- Short-circuit protected open-drain output
- Wide temperature range from -40 °C to 150 °C
- Ideal sensor for applications in extreme automotive and industrial environments
- Tiny SOT23 package and TO92S 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 hysteresis parator 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 hysteresis parator.
VSUP
Voltage
VREF
Regulator
Hall
Plate
REV1.0
05/2020 w w w. a l f a e l e c s . c o m
High Voltage Hall Effect Switch
5. Pin Description
Alfa Electronics Co.,Ltd
A402F XXX
12 3
GND 2
A402F XXX
VSUP GND VOUT
TO92S
1 VSUP
3...