TDK Corporation expands its portfolio of tunnel magnetoresistive (TMR) angle sensors with the release of TAS4240 TMR based angle sensor for automotive and industrial applications. The TAS4240 comes in a compact TSSOP8 package and provides two redundant analog unidirectional SIN/COS outputs. The sensor enables precise angle measurements in applications where high performance is required and space is limited.

As a 360° angle sensor, the TAS4240 is suitable for accurate rotor position measurement of BLDC motors used in safety-critical applications such as power steering, brake boosters or traction motors. The sensor contains four TMR half-bridges and provides two separate SIN/COS outputs. Higher safety levels up to ASIL D can then be achieved for the system, while offering a higher availability of position information even in the event of a failure of one of the output signals. Depending on the system architectures, fault handling concepts can also be supported by the sensor.

TDK’s state-of-the-art TMR technology takes advantage of long-term experience in magnetic sensor technology and optimizes its sensors by successfully integrating sophisticated TMR technology into small packages. The angular accuracy of the sensor remains stable at different temperatures and throughout the lifetime of the sensor. The deterministic behavior of the TAS4240 in extended magnetic field ranges opens up new application possibilities, even in demanding environments.

Samples of the TAS4240 are available now, with production starting in April 2022.

Redundant, half-bridge TMR-based sensor handles safety-related angle and position detection

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