Melexis Technologies NV MLX90367KGO-ACU-000-SP

Overview

MLX90367KGO-ACU-000-SP from Melexis is a Triaxis® Hall-effect position sensor IC in TSSOP-16 package, delivering 12-bit resolution SENT output per SAE J2716-2010, with programmable 3-point linear transfer characteristic and thermal offset correction. It decodes absolute rotary or linear position from orthogonal and parallel magnetic field components (BX, BY, BZ) for automotive pedal, throttle, and steering applications.

For engineers reviewing the MLX90367KGO-ACU-000-SP datasheet, pinout, applications, or equivalent options, key selection factors include its dual-die redundant architecture, SENT frame timing (882 µs period), ±150 °C operating range, and factory-programmable magnetic calibration parameters.

Technical Context

The MLX90367KGO-ACU-000-SP implements Triaxis® sensing using integrated magneto-concentrators to resolve all three magnetic field vector components (BX, BY, BZ) on a single die. Its on-chip RISC CPU performs real-time coordinate rotation (CoRDiC) and digital signal processing to compute absolute angular position with intrinsic linearity error ≤ ±1° for XY axis at 25 °C.

This variant uses the ACU option code, enabling 3-point LNR (Linearization) programming and operating across –40 °C to +150 °C. It outputs SENT frames in Throttle Sensor format with fast-channel diagnostics, 441 µs internal angle measurement period, and 1745 µs total latency (FILTER = 1).

Key Specifications

Pinout & Package

TSSOP-16 package with dual-die redundancy; RoHS compliant; body dimensions 5.0 mm × 4.4 mm × 1.2 mm (max); exposed pad optional for thermal enhancement.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar absolute position sensing applications.

Compared with MLX90367KGO-ACU-000-SP, the ACV variant offers finer-grained linearization for tighter mechanical tolerances, while ACX adds active thermal zero-point stabilization - both retain identical pinout, SENT protocol, and dual-die redundancy but differ in EEPROM-programmable feature set and calibration depth.

Availability

MLX90367KGO-ACU-000-SP is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position sensing, steering wheel angle sensing, and ride height monitoring requiring stable component supply across extended temperature ranges and functional safety compliance.

Supply support for MLX90367KGO-ACU-000-SP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Melexis is a Belgian semiconductor company specializing in intelligent sensors and driver ICs for automotive, industrial, and consumer markets, with core expertise in Hall-effect, IR, and pressure sensing technologies.

The MLX90367 product line delivers Triaxis® absolute position sensing for safety-critical automotive subsystems, designed specifically to replace contacting potentiometers and support ASIL-B compliance through dual-die redundancy and robust SENT communication.

FAQ

What is the operating temperature range of the MLX90367KGO-ACU-000-SP?

The MLX90367KGO-ACU-000-SP operates from –40 °C to +150 °C, validated per its K temperature suffix. This range supports under-hood automotive applications such as throttle bodies and brake pedals. The device maintains 12-bit SENT output accuracy across this span, with thermal offset correction reducing angular drift to ≤ ±0.3° in typical configurations. No derating is required within these limits.

Does the MLX90367KGO-ACU-000-SP support functional safety standards like ISO 26262?

Yes, the MLX90367KGO-ACU-000-SP supports ASIL-B compliance through its dual-die TSSOP-16 architecture, which provides hardware-level redundancy, independent power domains (VDD1/VDD2, VDIG1/VDIG2), and isolation resistance ≥4 MΩ between dice. It includes built-in diagnostics such as broken-track detection on VDD/VSS lines and SENT frame CRC checking - all documented in Melexis' FMEDA report for the MLX90367 family.

How does the 3-point LNR programming work in the MLX90367KGO-ACU-000-SP?

The MLX90367KGO-ACU-000-SP implements 3-point Linearization (LNR) via EEPROM-programmable coordinates (LNRAX/LNRAY, LNRBX/LNRBY, LNRCX/LNRCY) that define piecewise-linear transfer segments. During operation, the DSP interpolates between these points to correct for magnetic nonlinearity introduced by mechanical tolerances or magnet misalignment. Calibration is performed once during end-of-line programming and retained across power cycles.

What SENT protocol version and frame format does the MLX90367KGO-ACU-000-SP use?

The MLX90367KGO-ACU-000-SP implements SENT per SAE J2716-2010, using the Throttle Sensor format. Each frame contains a sync pulse, 12-bit position data in the fast channel, and diagnostic status bits. Frame period is fixed at 882 µs, with internal angle measurement every 441 µs. Slow channel messages (e.g., OEM IDs, sensor type) are transmitted in extended sequences of 40 frames.

Can the MLX90367KGO-ACU-000-SP be used for linear position sensing, or is it limited to rotary applications?

The MLX90367KGO-ACU-000-SP supports both absolute rotary and linear position sensing. For linear applications, it uses the BZ field component (axial direction) with appropriate magnet geometry - e.g., a moving rod magnet over the IC surface. The Triaxis® architecture resolves BX, BY, and BZ simultaneously, enabling flexible mechanical layouts. Applications include float-level and ride height sensors, as confirmed in Melexis' official documentation.