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Application of HS254 unipolar micro-power Hall element in notebook computers

Laptops are an indispensable tool for modern people, featuring portability and high performance. One of the key components, the Hall switch, plays an important role in laptops. Through its intelligent control function and energy-saving optimization features, the Hall switch provides a smarter and more energy-efficient experience for the use of laptops.

Hall switches are often used in the lid sensing function of laptops. When the lid of the laptop is opened or closed, the Hall switch can sense and trigger the corresponding operation. For example, when the lid is closed, the Hall switch can automatically put the computer into sleep mode to save energy and extend battery life. When the lid is opened, the Hall switch restores the computer to work.

Recommended model: HS254 unipolar micro-power Hall element

The HS254 Hall effect sensor is a temperature-stable, stress-resistant, and low-sensitivity tolerance micro-power Hall switch. Excellent high-temperature performance is achieved by dynamic offset cancellation using chopper stabilization technology. This approach reduces the offset voltage that is usually caused by device overmolding, temperature dependence, and thermal stress.
HS254 is designed for low operating voltage (1.65V), the chip contains the following functions on a single silicon die: voltage regulator, Hall voltage generator, signal amplifier, chopper stabilizer, Schmitt trigger, CMOS output driver. Advanced CMOS wafer manufacturing process can be used to take advantage of low voltage requirements, component matching, very low input offset error and small component geometry. The device requires a unipolar magnetic field to operate.
The package type is a halogen-free version, which has been verified by a third-party laboratory.


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