Suitable for automotive applications such as brakes, gas pedals, and chassis ride height

ams is launching a new family of magnetic position sensors that provides more safety and diagnostic capabilities to help automotive OEMs achieve the highest rating of the ISO26262 ASIL system safety level compatibility standard.

The AS5270A/B device is suitable for a variety of automotive applications, including brake and gas pedals, throttle valves and tumble flaps, steering wheel position, chassis ride height, EGR (exhaust gas recirculation) valves, fuel level measurement systems, and 2/4 wheel drive switches.

The AS5270A and AS5270B system-on-chip (SoC) devices are 0 to 360 ^° rotary magnetic position sensors that provide non-contact, high-resolution, absolute angle measurement capabilities. The AS5270A/B were developed as safety element out of context (SEooC) devices as defined in the ISO 26262 functional safety standard.

The AS5270A/B magnetic position sensor provides complete data path diagnostic capabilities on-chip. This diagnostic function tests the entire device, starting from the Hall sensor front end, passing through a DSP engine that converts the raw values of the magnetic field strength into sine and cosine vector values, and extending to the backend interface and pins.

AS5270A/B is manufactured by stacking dual-die devices and complies with AEC-Q100 Grade 0 quality. It is supplied in an MLF-16 surface mount package to ensure high reliability and redundant operation.

The AS5270A/B device, which supports an internal 14-bit (0.22 ^oz ) resolution front-end core Hall sensor array, provides true 12-bit output resolution. Thanks to the high-sensitivity Hall sensor front-end, this device can operate with small, low-cost target magnets and support a wide magnetic field strength input range of 10 to 90 mT.