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AS5147 Rotary Position Sensor ICs
ams OSRAM offers the AS5147 family high-speed rotary position sensors for safety-critical automotive applications
The AS5147 from ams OSRAM is a high-resolution rotary position sensor for high speed (up to 28 kRPM) angle measurement over a full 360° range. The 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. Incremental movements are indicated on a set of ABI signals with a maximum resolution of 4096 steps / 1024 pulses per revolution. The product is defined as SEooC (Safety Element out of Context) according to ISO26262, including FMEDA, safety manual, and third party qualification.
- DAEC™ dynamic angle error compensation
- Immune to external stray magnetic field
- 14-bit core resolution
- Maximum speed up to 28,000 RPM
- Developed per ISO 26262 SEooC
- Eliminates angle measurement lag at high RPMs
- Lower system costs (no shielding)
- High resolution for motor and position control
- No programmer needed (via SPI command)
- Enables ASIL-x system safety level compliance
- Safety critical automotive systems (EPS, brake, and others)
- Resolver replacement
- Discrete Hall commutation feedback replacement
- Servo motor position control
- BLDC/PMSM motor commutation (pumps, DCT, starter, alternator, wiper, and more)
Australia