DAEC™ Dynamic Angle Error Compensation www.ams.com/AS5147 AS5147 – Magnetic Rotary Position Sensor We provide innovative analog solutions to - DAEC™ Dynamic Angle Error Compensation - AEC-Q100 grade 0 automotive qualified the most challenging applications in sensor - 14-bit resolution and sensor interfaces, - 11-bit binary incremental pulse count power management, and wireless. - Programmable zero position General Description The AS5147 is a high-resolution rotary position sensor for fast absolute angle measurement over a full 360-degree range. This new position sensor is equipped with a revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency. The robust design of the device suppresses the influence of any homogenous external stray magnetic field. A standard 4-wire SPI serial interface allows a host microcontroller to read 14-bit absolute angle position data from the AS5147 and to program non- volatile settings without a dedicated programmer. The resolution of the ABI signal is programmable to 2048 steps / 512 pulses per revolution or 1024 steps / 256 pulses per revolution. The AS5147 has also a programmable UVW output and supports embedded self-diagnostics features. The Dynamic Angle Error on the AS5147 device is accurate from ±0.08° at 7,000rpm to ±0.17° at 14,500rpm. It comes in a 14 pin TSSOP package. Benefits Features - Easy to use – saving costs on DSP - High resolution for motor & position control - Versatile choice of the interface - No programmer needed (via SPI command) - Supports safety challenging applications - Lower system costs (no shielding) - DAEC™ Dynamic angle error compensation - 14-bit core resolution -Independent output interfaces: SPI, ABI, UVW, PWM - Zero position, configuration programmable -Self-Diagnostics - Immune to external stray field DAEC™ Latency Comparison Applications - Brushless DC motor commutation - Electric power steering (EPS) - Transmission (gearbox, actuator) -Pump - Brake (actuator) - Starter & alternator latency ≈ 0° No Compensation External Compensation Integrated DAEC™ AS5147 Block Diagram VDD3V3 AS5147 CSn SCL MISO MOSI Volatile Memory SPI VDD OTP LDO ABI Hall Sensors Analog Front-End A/D AGC ATAN (CORDIC) INTERPOLATOR Dynamic Angle Error Compensation UWV A B I/PWM U V W / PWM PWM Decoder Selectable on I or W GND www.ams.com [email protected] © 05/2014 by ams Subject to change without notice Headquarters ams AG Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria Phone +43 3136 500-0 · Fax +43 3136 525-01 Sales Offices Worldwide [email protected] [email protected] [email protected]