With an ambient operating temperature of up to 160℃ and combining high linearity with excellent thermal stability, including low sensitivity offset and drift, the MLX91377 supports accurate and reliable torque sensing in EPAS systems to enable safe control in conventional and autonomous driving.
Developed as an out-of-context safety element (SEooC), the MLX91377 complies with ISO 26262 and is AEC Q-100 Grade 0 rated. Supporting ASIL-C functional safety level in digital mode (SENT or SPC) and ASIL-B in analog mode, the MLX91377 offers a high level of functional safety and can detect internal faults and enter a safe state to prevent unintended vehicle behavior. The available dual-die TSSOP-16 package further enhances this by providing two redundant dies to support safety-critical applications such as steering and braking systems.
In addition to functional safety applications, the MLX91377 satisfies a wide variety of non-contact position sensing use cases for automotive and industrial applications, including steering torque sensors, acceleration, brake or clutch pedal sensors, absolute linear position sensors, float level sensors, non-contact potentiometers, small angle position sensors, and small stroke position sensors.
The programmable measurement range and multi-point calibration enhance flexibility for designers, and the variety of output protocols allows a single IC to be used in multiple applications, reducing requalification efforts and costs. The Short PWM Code (SPC) protocol enables measurements to be taken and transmitted upon detection of a trigger pulse. Therefore, up to four MLX91377 sensors can be synchronized at up to 2 kHz, allowing simultaneous magnetic measurements with deterministic latency to ensure high accuracy. Furthermore, the low noise and high refresh rate enable high control loop speeds, allowing systems to deliver fast response times with minimal filtering.
The MLX91377, with its 48-bit programmable identification number, is available in a fully redundant dual-die TSSOP-16 package.
