AS5047U-HTSM

AS5047U 14-Bit On-Axis Magnetic Rotary Position Sensor with Up to 14-Bit Binary Incremental Pulse Count The AS5047U 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 a revolutionary integrated dynamic angle error compensation (DAEC) with almost 0 latency at higher rotational speed. For increased signal quality at lower rotational speed, the dynamic filter system (DFS) reduces transition noise. The robust design of the device suppresses the influence of any homogenous external stray magnetic field. A standard 4-wire SPI serial interface with a CRC protection allows a host microcontroller to read 14-bit absolute angle position data from the AS5047U 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 16989 steps / 4096 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. AS5047U are single die sensors and are available in a TSSOP14 Package. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of this device are listed below: Figure 1: Added Value of Using the AS5047U Benefits Features DAEC Dynamic angle error compensation Easy to use saving costs on DSP DFS Dynamic filter system Higher durability and lower system costs (no Magnetic stray field immunity shield needed) Versatile choice of the interface Independent output interfaces: SPI, ABI, UVW, PWM ams Datasheet Page 1 v1-01 2020-Dec-16 Document FeedbackAS50 47U Gen e ra l De s c rip t ion Applications The AS5047U supports BLDC motor commutation for the most challenging industrial applications such as: Factory automation Building automation Robotics PMSM (permanent magnet synchronous motor) Stepper motor closed loop Optical encoder replacement Block Diagram The functional blocks of the AS5047U are shown below: Figure 2: AS5047U Block Diagram VDD3V3 Volatile CSn Memory CLK SPI MISO OTP MOSI VDD LDO P2ram err CRC or A ABI B OffCompN Cordic I/PWM otFinished Overflow 14-Bit ADC U Adaptive Interpolator AFE CORDIC DAEC UVW V Filter 14-Bit ADC W/PWM Hall sensor array AGC PWM AGC- WDTST Oscillator warning AS5047U GND Page 2 ams Datasheet Document Feedback v1-01 2020-Dec-16