Date: 12/05/2010

Magnetic angle positioning sensor with SAE SENT J2716 interface

Austriamicrosystems has unveiled the AS5165, a contactless magnetic angle position sensor for accurate angular measurement over a full 360°. This is a magnetic rotary sensor and is said to operate in harsh environmental conditions. The interface used to communicate all the sensor information is SENT J2716.

The AS5165 magnetic encoder is a system-on-chip and consists of integrated Hall elements, an analog front-end, digital signal processing and good protection features. Protection against overvoltage up to 27V is provided power supply and output pins, protection against reverse polarity to -18V is also provided to the power supply, broken wire and short circuit detection is also provided. Its architecture is said make the sensor insensitive stray magnetic fields. It finds application in throttle and valve position sensing and several power train sensing applications.

Only a simple two-pole magnet rotating over the center of the chip, placed above or below the IC is used to measure the angle. It is said to be tolerant to magnetic misalignment, air gap variations, and temperature variations. Due to devices inherent accuracy no calibration is said to be required. The measurement of angular position has a programmable resolution of 0.022° = 16384 positions per revolution.

Package: TSSOP14

Availability: will be showcased at the Sensor Expo, June 7-9, 2010, Rosemont, IL.

For further information visit: www.austriamicrosystems.com/AS5165