AH401F E 雙極鎖存型磁感測器

1. Introduction

AH401F  Hall-Effect  bipolar  sensor,  employed  with  high  voltage  bipolar  technology,  has  been  designed purposely for automotive and industrial applications, and operates with supply voltages from 3.0 V to 60 V in temperature range from -40 °C up to 150 °C. AH401F is available in SMD-package SOT23 and in the leaded version TO92UA.

2. Features

– Operates from 3.0 V to 60 V supply voltage
– Overvoltage protection capability up to 80 V – Highest ESD performance up to ±4 kV
– 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 commutation – Speed measurement
– Revolution counting
– Angular position detection – Proximity detection

4. Block Diagram

The circuit includes temperature compensated 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.

5. Pin Description

6. Ordering information