AS5047D 14-Bit On-Axis Magnetic Rotary Position Sensor with 11-Bit Decimal and Binary Incremental Pulse Count The AS5047D is a high-resolution rotary position sensor for fast General Description 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. Incremental movements are indicated on a set of ABI signals with a maximum resolution of 2000 steps / 500 pulses per revolution in decimal mode and 2048 steps / 512 pulses per revolution in binary mode. The resolution of the ABI signal is programmable and can be reduced to 32 steps per revolution, or 8 pulses per revolution. Brushless DC (BLDC) motors are controlled through a standard UVW commutation interface with a programmable number of pole pairs from 1 to 7. The absolute angle position is also provided as PWM-encoded output signal. The AS5047D is available as a single die in a compact 14-pin TSSOP package. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of AS5047D, 14-Bit On-Axis Magnetic Rotary Position Sensor with 11-Bit Decimal and Binary Incremental Pulse Count are listed below: Figure 1: Added Value of Using the AS5047D Benefits Features Easy to use saving costs on DSP DAEC Dynamic angle error compensation Good resolution for motor and position 14-bit core resolution control ABI programmable decimal and binary pulse-count: Simple optical encoder replacement 500, 400, 300, 200, 100, 50, 25, 8, 512, 256 ppr No programmer needed (via SPI Zero position, configuration programmable command) ams Datasheet Page 1 v1-07 2016-Apr-27 Document FeedbackAS5 047 D Gen e ra l De s c rip t ion Benefits Features Versatile choice of the interface Independent output interfaces: SPI, ABI, UVW, PWM Lower system costs (no shielding) Immune to external stray field Applications The AS5047D is ideally suited to support BLDC motor commutation for the most challenging industrial applications such as factory automation, building automation, robotics, PMSM (permanent magnet synchronous motor) and stepper motors closed loop regulation, as well as optical encoder replacement. Block Diagram The functional blocks of this device are shown below: Figure 2: AS5047D Block Diagram VDD3V3 AS5047D Volatile Memory CSn SCL SPI MISO OTP VDD LDO MOSI A ABI B Hall Analog I/PWM Sensors Front-End U Dynamic Angle ATAN A/D INTERPOLATOR Error UWV V (CORDIC) Compensation W / PWM PWM Decoder Selectable AGC on I or W GND Page 2 ams Datasheet Document Feedback v1-07 2016-Apr-27