AH401 雙極鎖存型磁感測器

Introduction

AH401, designed with Bipolar technology, includes on-chip Hall element voltage generator, a voltage regulator for operation with supply voltages of 3.8 to 60V, reverse voltage protection, temperature compensation circuitry, small-signal amplifier, Schmitt trigger and an open-collector output.

The sensor is designed to respond to North and South poles. While the magnetic flux density(B) is larger than operate point Bop, the output will be turned on with low output level. Then the output is held until the magnetic flux (B) is lower than release point Brp. The output will be turned off with high output level.

AH401 offers a variety of packages, including TO-92, SOT-23. All packages are RoHS compliant.

Features
 Miniature construction

 High sensitivity of +/-55 Gauss (typ.)

 Wide voltage range of 3.8 Vdc to 60 Vdc

 Temperature range of -40 °C to 150 °C

 Highest ESD performance up to ±4 kV

 Open Collector Output

Applications
 BLDC Motor Commutation

 Flow sensor

 Position sensor

 Speed sensor

 Proximity sensor

Function  diagram

AH401, designed with Bipolar technology, includes on-chip Hall element voltage generator, a voltage regulator for operation with supply voltages of 3.8 to 60V, reverse voltage protection, temperature compensation circuitry, small-signal amplifier, Schmitt trigger and an open-collector output.