AS5715R-ZTST

Inductive High Speed Motor Control ams.com/AS5715R Inductive High Speed Angle Position Sensing for Automotive Applications - High speed measurement up to 480,000 rpm - Flexible system configuration and application form factors - Easy adaption to any application – all pole-pair counts with constant resolution - Robustness against magnetic stray fields General Description The ams IC features high speed angle position sensing based on inductive sensing technology. The device is combined with a customized coil system based on an inductive technology. The device is combined with a customized coil system which consists of a target, TX (transmitting) and two RX (receiving) coils integrated on a PCB. The device excites the TX coil with a high frequency voltage. The target above the coils effects the voltage, induced into the RX coils depending on the position of the target. The device measures, demodulates, and amplifies this voltage. The output is a SIN and COS shaped voltage which is proportional to the position of the target. By applying an atan2 (2-argument arctangent) calculation to the output signals with SIN and COS as arguments, an accurate angle is calculated. The product is defined as SEooC (Safety Element out of Context) according ISO26262. Features Benefits - On and off axis applications - Flexible PCB design possible, enabling hollow shaft and side shaft applications - Adaptable coil system layout - Adaptable to the pole pair count of the motor - Typical accuracy with 4 pole-pair configuration: