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Hall sensors detect position, motion direction, fluid level

Posted: 24 Feb 2010 ?? ?Print Version ?Bookmark and Share

Keywords:Hall sensor? EMC? automotive? motion detection?

HAL 182x sensor

From Micronas come three new value-optimized variants of the HAL 182x family boasting EMC performance and overvoltage protection that make them suited for automotive applications.

"The linear Hall sensors HAL 1821, HAL 1822 and HAL 1823 are available with different levels of sensitivity to match application requirements. In contrast to the existing HAL 1820, the programming functionality has been dropped with the new types in order to achieve a better price-performance ratio.

The sensors can be used to determine position, direction of motion, fluid level and for current measurements. They can also be used to replace classic potentiometers", said Peter Zimmermann, director marketing at Micronas.

HAL 1821, HAL 1822 and HAL 1823 are designed for use in automobiles, with superior EMC performance and with internal overvoltage and reverse voltage protection at the power supply pins.

An application board is available for the development. The Hall sensors are offered in TO92UA and SOT89A housings and aim for the temperature range TJ = -40 C to +170 C, with several temperature classes available within this range. Depending on type, the sensors are on offer at a price between 0.65 and 0.75 euros ($0.88 and $1.02) at unit quantities of 100K. Samples in the TO92UA housing are available within Q2 10.

- Christoph Hammerschmidt
Automotive Design Europe





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