AMS AS5047D ATSM sensor providing fast absolute angle measurement and robust stray field suppression
Product Overview
The AS5047D is a high-resolution, 14-bit on-axis magnetic rotary position sensor designed for fast absolute angle measurement over a full 360-degree range. It features integrated dynamic angle error compensation (DAEC) with minimal latency and offers robust suppression of homogeneous external stray magnetic fields. The sensor provides absolute angle position data via a 4-wire SPI serial interface, allowing host microcontrollers to read data and program non-volatile settings without a dedicated programmer. Incremental movements are indicated on ABI signals with programmable resolutions in decimal and binary modes. It also includes a UVW commutation interface for brushless DC (BLDC) motor control and a PWM-encoded absolute angle output. The AS5047D is available as a single die in a compact 14-pin TSSOP package.
Product Attributes
- Brand: ams OSRAM
- Product Name: AS5047D
- Package: TSSOP
- Certifications: AEC-Q100-004, AEC-Q100-002, IPC/JEDEC J-STD-020
Technical Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Core Specifications | |||||
| Core Resolution | 14 | bit | |||
| Absolute Angle Measurement Range | 360 | degree | |||
| Incremental Interface (ABI) | |||||
| Resolution (Decimal Mode) | 500 | pulses per revolution | |||
| Resolution (Binary Mode) | 512 | pulses per revolution | |||
| Programmable Resolution (Min) | 32 | steps per revolution | |||
| Motor Commutation Interface (UVW) | |||||
| Programmable Pole Pairs | 1 | 7 | |||
| Magnetic Field Specifications | |||||
| Required Orthogonal Magnetic Field Strength | Normal operating mode, measured at die surface along 1.1mm circle | 35 | 70 | mT | |
| Performance Specifications | |||||
| Non-linearity (INLOPT) | @ 25C, optimum magnet placement | 0.8 | degree | ||
| Non-linearity (INLOPT+TEMP) | Optimum magnet placement, full temperature range | 1 | degree | ||
| RMS Output Noise (ONL) | Core output, orthogonal component | 0.068 | degree | ||
| System Propagation Delay (SPI) | Reading angle via SPI | 90 | 110 | s | |
| System Propagation Delay (DAEC) | After dynamic angle error correction (ABI, UVW) | 1.5 | 1.9 | s | |
| Power-on Time | Time between VDD > VDDmin and first valid angular value | 10 | ms | ||
| Maximum Speed | 14500 | RPM | |||
| Electrical Specifications | |||||
| Supply Voltage (VDD) | 5.0V operation mode | 4.5 | 5.0 | 5.5 | V |
| Supply Voltage (VDD3V3) | 3.3V operation mode | 3.0 | 3.3 | 3.6 | V |
| Regulated Voltage (VREG) | Voltage at VDD3V3 pin if VDD VDD3V3 | 3.2 | 3.4 | 3.6 | V |
| Supply Current (IDD) | 15 | mA | |||
| High-level Input Voltage (VIH) | 0.7VDD | V | |||
| Low-level Input Voltage (VIL) | 0.3VDD | V | |||
| High-level Output Voltage (VOH) | VDD-0.5 | V | |||
| Low-level Output Voltage (VOL) | VSS+0.4 | V | |||
| Digital Output Current (ABI, UVW) | 1 | mA | |||
| Digital Output Current (MISO) | 4 | mA | |||
| Capacitive Load (C_L) | On digital output | 50 | pf | ||
| Absolute Maximum Ratings | |||||
| DC Supply Voltage (VDD) | -0.3 | 7.0 | V | ||
| DC Supply Voltage (VDD3V3) | -0.3 | 5.0 | V | ||
| Input pin voltage | -0.3 | VDD+0.3 | V | ||
| Ambient Temperature (Ta5V0, Ta3V3) | -40 | 125 | C | ||
| Storage Temperature (Tstrg) | -55 | 150 | C | ||
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