DAEC™ Dynamic Angle Error Compensation www.ams.com/AS5047D AS5047D – Magnetic Rotary Position Sensor We provide innovative analog solutions to - DAEC™ Dynamic Angle Error Compensation - 14-bit resolution the most challenging applications in sensor - 11-bit decimal & binary incremental pulse count and sensor interfaces, - Programmable zero position power management, and wireless. General Description The AS5047D 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 revolutionary integrated dynamic angle error compensation (DAEC™) with almost 0 latency and offers a robust design that 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 AS5047D and to program non- volatile settings without a dedicated programmer. The resolution of the incremental ABI interface is programmable with a maximum resolution of 2000 steps / 500 pulses per revolution in decimal mode and 2048 steps / 512 pules per revolution in binary mode. The Dynamic Angle Error on the AS5047D 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 - Simple optical encoder replacement - No programmer needed (via SPI command) - Versatile choice of the interface - Lower system costs (no shielding) - DAEC™ Dynamic angle error compensation - 14-bit core resolution -ABI programmable decimal and binary pulse-count: 500, 400, 300, 200, 100, 50, 25, 8, 512, 256 ppr - Zero position, configuration programmable -Independent output interfaces: SPI, ABI, UVW, PWM - Immune to external stray field DAEC™ Latency Comparison Applications - Optical encoder replacement - Brushless DC motor commutation - Factory and building automation -Robotics - PMSM (permanent magnet synchronous motor) - Stepper motors closed loop latency ≈ 0° No Compensation External Compensation Integrated DAEC™ AS5147 Block Diagram VDD3V3 AS5047D 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]