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Dongguan Hallsen Technology Co., Ltd
Application of Hall switch in Bluetooth headsets:
High-end Bluetooth headsets use intelligent magnetic induction automatic switching technology. By embedding the Hall switch inside the headset, when the user takes off the headset and wears it around the neck, the change in the magnetic field is captured by the Hall switch, triggering the headset to automatically turn off and save power. On the contrary, when the headset is put on again, the Hall switch senses the change in the magnetic field again and triggers the headset to automatically turn on.
Recommended model: HS264 unipolar micro-power Bluetooth headset magnetic switch
HS264 is a micro-power, high-sensitivity unipolar Hall switch sensor device. The internal circuit of HS264 includes a Hall thin film, a voltage regulator module, a signal amplification and processing module, a dynamic offset elimination module, a latch module, and a CMOS output stage. Due to the use of advanced Bi-CMOS technology, the overall optimized line structure enables the product to obtain extremely low input error feedback. The product uses dynamic offset elimination technology, which can eliminate the offset voltage caused by package stress, thermal stress, and temperature gradient, and improve the consistency of the device. At the same time, the product adopts a very miniaturized packaging process, which makes the product have extremely high performance and market advantages. It provides three packages: TSOT23-3, TO-92S and DFN4L, and the operating temperature range is -40~150℃.
