AMS AG, a leading provider of high perfor-mance sensors and analog ICs, today extended its portfolio in automotive safety compliant sensors with the release of its first magnetic position sensors fully developed using the automotive industry’s programme for ISO26262 safety compliance. The launch of the new sensor series also includes the introduction of ams’ first magnetic position sensor in a System-in-Package (SiP) format, a space savings package, that enables lower system costs and the placement of the sensor device in environments, that are prohibitive to PCB based packages.
The new AS5170 and AS5171 sensors were developed as SEooC (Safety Element out of Context) devices, as defined in the ISO26262 functional safety standard. Consistent with ams’ strategy of helping its customers meet the ever-increasing demand for automotive safety features built into critical vehicle systems, the AS517x parts are ams’ first magnetic position sensors to provide full data path diagnostics, enabling automotive system OEMs to achieve a higher level of ISO26262 system-level compliance.
The diagnostic system built into the AS517x series tests the entire device, from the Hall sensor front end, through the DSP engine which converts raw measurements of magnetic field strength into sine and cosine vectors, to the back-end interfaces and pins.
The AS517x series of sensors, which are qualified to AEC-Q100 Grade 0, very accurately measure the absolute angle of rotation. Their high 12-bit output resolution enables precise measurements, even for reduced angular excursions down to a minimum arc of 90°. This means, that the ams devices are ideal for a range of safety-critical automotive applications including chassis height, gear shifters, electronic power steering, exhaust gas recirculation, and brake pedal as well as throttle position sensing.
The AS517x series of sensors, which are qualified to AEC-Q100 Grade 0, very accurately measure the absolute angle of rotation. Their high 12-bit output resolution enables precise measurements, even for reduced angular excursions down to a minimum arc of 90°. This means, that the ams devices are ideal for a range of safety-critical automotive applications including chassis height, gear shifters, electronic power steering, exhaust gas recirculation, and brake pedal as well as throttle position sensing.
The AS5171 comes in an SiP format, which integrates the sensor die and capacitors in a single, encapsulated three-pin package. The SiP offers improved ESD and EMC performance, as well as enhanced supply protection. The Supply and Output pins are protected against over-voltages up to +20V. The Supply pin also offers -20V of protection against reverse polarity.
For sample requests and for more technical information, please go to
http://www.ams.com/position-sensors/AS5170 and http://www.ams.com/position-sensors/AS5171