Application of Low Power and High Sensitivity All Polarity Hall Switch AH463 in Door and Window Alarm

The door and window alarm mainly uses switch type Hall sensors, which have the characteristic of magnetic induction strength. When the output voltage reaches a certain strength, the level conversion will occur. The scheme is set to not alarm when the magnetic field is close to the low level output of the Hall, and to alarm when the magnetic field is away from the high level output of the Hall.
Due to the fact that the door magnetic switch alarm uses battery power supply for easy installation, and the magnetic field is relatively weak, it is necessary to choose a low-power and high sensitivity Hall with fast response when selecting Hall. Therefore, this article recommends using the AH463 low-power, high sensitivity, all polarity Hall switch chip.
AH463 Function Block Diagram. png
AH463 Functional Block Diagram
AH463 is designed and produced using CMOS technology, which integrates a voltage regulator, Hall voltage generator, small signal amplifier, chopper regulator, Schmitt trigger, and CMOS output driver inside the chip device. The chip has the characteristics of good temperature stability, strong stress resistance, and high sensitivity, with a working voltage of 2.5V-5.5V.
Introduction to the functional characteristics of AH463 Hall switch:
Push pull output
ESD performance can reach: ± 6 kV
Working voltage: 2.5V-5.5V
Micro power battery powered applications
• Full polarity input
Provide TO-92S inline package and SMT SOT23-3L package