Melexis invented a novel inductive sensor IC with the property of resisting stray magnetic fields. For optimal accuracy, the MLX90510 inductive interface IC allows high-speed parsers to achieve minimal ECU under extreme mechanical and electrical conditions. The device is ideal for electronic motor control, electronic brake booster, and electronic power steering applications with its excellent EMC capabilities.
The device offers superior accuracy of +/-0.36 degrees up to 240,000 e-rpm. It is suitable for high-speed sensing applications with high precision, EMC and demanding safety conditions.
"Efficient electric drivetrains require that the stator power current be synchronized with the rotor position. This results in optimal efficiency and torque characteristic control, "said Lorenzo Lugani, Product manager for Melexis inductive Sensors. "Thanks to the MLX90510's digital architecture and rugged design, automotive engineers take advantage of the MLX90510's EMC robustness while making minimal effort on the ECU side to reduce module costs."
The device includes Melexis' patented tracking loop technology and also provides digital architecture based differential sine and cosine analog outputs.
The device works with a set of PCB-based coils and its scalable design can be easily adapted to the polar logarithm of the motor. The IC supports a variety of sensing modes for on-axis (shaft-end) and off-axis (shaft-side or through-shaft) operation, maximizing the flexibility of the induction coil design to cope with the most difficult mechanical constraints. With its overvoltage and reverse polarity protection (+/-24V on power supply and +/-18V on output), the device provides excellent robustness against electrical challenges. In addition, the sensor is aEC-Q100 compliant and can operate in an extended temperature range of -40C to +160C. The device fully complies with the ISO 26262 ASIL C functional Safety guidelines and supports the highest ASIL D system-level integration.
