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Sensors/MEMS??

Rotary encoder withstands rough environments

Posted: 26 May 2009 ?? ?Print Version ?Bookmark and Share

Keywords:automotive? rotary encoder? interface?

From austriamicrosystems comes a magnetic rotary encoder IC specifically designed to satisfy stringent automotive requirements in angle sensing applications where robust IC protection is essential.

The AS5163 encoder IC incorporates both +27V overvoltage protection and -18V reverse polarity at supply pins. AS5163 also features an intelligent short circuit monitoring function to protect it against damage under short circuit condition. This makes the encoder IC suitable for automotive applications, such as throttle or gas-pedal systems, the vendor claims.

"In the automotive industry with its constantly growing demands with regard to device protection and system reliability, our AS5163 is perfectly positioned to meet these challenges", comments Andreas Pfingstl, product manager automotive encoders at austriamicrosystems. "When developing this device, we put special emphasis on the ease of use and cost efficiency for the user. The AS5163 offers a single-wire interface and, together with its robust protection features, allows system designers to meet their performance and reliability requirements, while optimizing system cost."

The AS5163 single-wire pin can be configured either as a 14bit digital, 12bit pulse width modulator or ratiometric analog output. In addition, the IC can be customized by the user to cover any system specific angle range. The programming of the desired angle range is achieved by setting a start and end position of the rotational movement. This feature makes the AS5163 very flexible and easy to use in a variety of automotive angle sensing applications.

The AS5163 is operational over an ambient temperature range from -40C to 150C. It is available in a small TSSOP 14 package and operates at 5V supply voltage.

- Automotive Design Europe





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