Melexis Technologies NV MLX90374GVS-ABC-307-RE

Overview

MLX90374GVS-ABC-307-RE from Melexis is a monolithic Triaxis® Hall-based magnetic position processor IC for absolute rotary and linear position sensing. It delivers dual-output SENT + programmable switch signals, operates from -40°C to +160°C, features ISO26262 ASIL-C safety compliance, AEC-Q100 qualification, and supports stray-field immune angular/linear configurations in DMP-4 package. It enables non-contacting throttle, pedal, and steering wheel position sensing in automotive powertrain and chassis systems.

For engineers reviewing the MLX90374GVS-ABC-307-RE datasheet, pinout, applications, or equivalent options, key selection criteria include its DMP-4 PCB-less package, SENT protocol compliance (SAE J2716 APR2016), dual-output functional safety architecture, 3.3 V regulated analog supply, and programmable piecewise linear transfer characteristic with up to 32 points.

Technical Context

The MLX90374GVS-ABC-307-RE integrates a Triaxis® Hall front end sensitive to Bx, By, and Bz magnetic field components, an analog-to-digital signal conditioner, and a DSP for real-time angle decoding. Its architecture supports both continuous asynchronous acquisition (for PWM/SENT without pause) and synchronous acquisition (for SENT with pause), with configurable frame timing including T_FRAME = 320 ticks at 3 µs tick time.

This variant uses the ABC chip revision in DMP-4 package with STD3 2.00 trim-and-form leads, configured for legacy/angular/linear position mode (-307 option code). It implements dual diagnostics-Intelligent Watchdog (20 ms timeout) and Absolute Watchdog (20 ms timeout)-and supports safe startup with full diagnostic cycle before first valid output (11.2–12.4 ms).

Key Specifications

Pinout & Package

DMP-4 is a PCB-less dual-mold package with 4 terminals, designed for direct soldering onto host PCBs with no intermediate substrate. It includes integrated decoupling capacitance and supports compact, high-reliability mounting in space-constrained automotive modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MLX90374GVS-ABC-307-RE, MLX90375GVS-ABC-307-RE adds 2-bit resolution and wider B-field headroom but shares identical packaging, safety architecture, and software compatibility; TLV493DW2B6HUMA1 lacks automotive qualification, SENT support, and failsafe outputs-making it unsuitable for ASIL-B/C systems.

Availability

MLX90374GVS-ABC-307-RE is available at Aetrix Electronics and suitable for automotive throttle position sensing, pedal position monitoring, and steering angle feedback requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MLX90374GVS-ABC-307-RE 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 and industrial markets, with core expertise in magnetic sensing, infrared thermometry, and automotive ASIC design.

The MLX90374 product line delivers Triaxis®-based absolute position sensing for automotive powertrain, chassis, and body applications, designed to replace mechanical potentiometers and support ISO26262-compliant system architectures.

FAQ

What is the primary output interface supported by the MLX90374GVS-ABC-307-RE?

The MLX90374GVS-ABC-307-RE supports SENT (SAE J2716 APR2016) as its primary serial output, delivering 12-bit angle data, CRC, diagnostics, and user-defined fields in each frame. Its second output is a fully programmable switch (open-drain or push-pull), configurable via on-chip NVRAM. This dual-output structure enables both high-resolution data transmission and discrete status signaling without external logic.

Does the MLX90374GVS-ABC-307-RE require an external microcontroller to operate?

No, the MLX90374GVS-ABC-307-RE is a self-contained position processor with integrated Triaxis® Hall front end, ADC, DSP, and dual-output drivers. It performs full angle computation, linearization (via up to 32-point PWL), diagnostics, and SENT frame generation internally. No external MCU is needed for basic operation, though programming of NVRAM parameters requires a Melexis-compatible programmer tool during production or calibration.

What does the "-307" option code signify in MLX90374GVS-ABC-307-RE?

The "-307" option code indicates two configuration attributes: "3" specifies legacy/angular/linear position mode (not stray-field immune), and "07" denotes STD3 2.00 trim-and-form leads for the DMP-4 package. This matches the datasheet's definition for angular rotary or linear position applications using standard magnet configurations, with optimized lead geometry for automated placement and reflow.

How does the MLX90374GVS-ABC-307-RE achieve ISO26262 ASIL-C compliance?

The MLX90374GVS-ABC-307-RE is certified as a Safety Element out of Context (SEooC) per ISO26262, providing dual independent watchdogs (IWD and AWD), memory ECC, supply voltage monitors (VDD, VDEC, VDDD), and diagnostic cycle timers. These mechanisms enable system-level ASIL-B/C decomposition when integrated with appropriate customer-defined safety goals, fault handling, and hardware/software partitioning.

Can the MLX90374GVS-ABC-307-RE be used in linear position sensing applications?

Yes, the MLX90374GVS-ABC-307-RE supports both absolute rotary and linear position sensing. In linear mode, it decodes magnet displacement along one axis using off-axis or side-shaft magnet configurations. The -307 option code explicitly covers "Angular Rotary / Linear position", and the device's programmable PWL transfer function allows precise calibration for linear stroke ranges up to ±20 mm depending on magnet geometry and air gap.