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Date: 22-05-14

Micronas launches enhanced angle sensor for automotive and industrial

Advanced sensor expert Micronas releases new direct angle sensors the HAL 372x featuring a ratiometric analog output and the HAL 373x with PWM and SENT output according SAE-J2716 release 2010. These sensors feature 30% improvement in angular measurement compared to its previous family due to improvement in Hall plate performance.

The key features of these sensors include:

They are designed to operate in the wide, junction temperature range from –40 °C to 170 °C.
Can be used for position detection with reduced magnet sizes or the wear-free replacement of conventional potentiometers
An overall movement of up to 40 mm can be detected with simple magnetic setups.
The HAL 37xy family offers a very high absolute overall measurement accuracy of 1.5 degrees.
The sensors are housed in a small SOIC8 SMD or 4-pin leaded TO92UP package and are qualified according to AEC-Q 100
The sensor has high-temperature resistant non-volatile memory to store calibration parameters.
Feature internal DSP algorithms in combination with the integrated EEPROM supporting compensation for application-specific impairments.
Offer 33 setpoints with 16 bit accuracy help to further reduce errors caused by the system setup, especially for linear position detection applications.
Easy-to-use LabVIEW-based software
The range of diagnostic functions includes the detection and the signaling of wiring problems, the localization of short circuits at the output stage, and various internal self-tests of the complete sensor signal path and the memory environment.
All members of the HAL 37xy family meet the stringent EMC requirements of the automotive industry and offer a very high ESD protection.
The sensors can be programmed directly via a bidirectional output pin by varying the output voltage without the need for a separate programming pin.

Applications:
Clutch position detection in gearboxes or in ride-height applications.
motor air management, such as EGR (Exhaust Gas Recirculation) or throttle position or turbo charger actuators.
In the industrial area, the devices can be used in various applications e.g. in joysticks or as valve position sensor for automation control.

“Thanks to the second generation of Micronas’ 3D HAL technology, our direct angle sensor family offers decisive advantages compared to all currently available Hall and all other magnetic based sensor technologies and thus further strengthens our leading market position”, says Dirk Behrens, Vice President Automotive at Micronas.

The HAL 37xy family uses pixel cell tech which consists of two vertical (BX, BY) and one horizontal Hall plate (BZ). With this pixel cell it is possible to measure the three magnetic field vector components at one spot. Magnetic field lines in parallel to the sensor surface are detected by the vertical Hall plates, whereas the component perpendicular to the chip surface is captured by the horizontal Hall plate. The ability to measure the relative strength of both components is the key for excellent angular performance, explains Micronas.

Production start is scheduled for the fourth quarter of 2014.
For more information visit www.micronas.com

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