Melexis Technologies NV MLX90316EGO-BCG-000-SP

Overview

MLX90316EGO-BCG-000-SP from Melexis is an absolute rotary position sensor IC using Triaxis® Hall technology with integrated magneto-concentrator (IMC), delivering 12-bit angular resolution and programmable 0–360° angular range in TSSOP-16 dual-die package, designed for automotive throttle, pedal, and steering wheel position sensing under -40°C to +150°C ambient conditions.

For engineers reviewing the MLX90316EGO-BCG-000-SP datasheet, pinout, applications, or equivalent options, key selection criteria include its dual-die redundancy architecture, SPI/Analog/PWM output configurability, end-of-line programmability of transfer characteristics, and ±700 mT magnetic field tolerance.

Technical Context

The MLX90316EGO-BCG-000-SP implements a monolithic Triaxis® sensing principle that detects the horizontal component of rotating dipole magnet flux via on-chip IMC, enabling robust angular measurement across mechanical airgap and off-axis tolerances. Its dual-die TSSOP-16 configuration provides full hardware redundancy for ASIL-B functional safety compliance.

On-chip 16-bit RISC DSP processes raw sine/cosine signals from two independent Hall front-ends, supporting real-time angular calculation with 14-bit serial output resolution (0.022°/LSB), programmable FIR/IIR filtering, and configurable diagnostics including broken VDD/VSS detection and watchdog timeout at 5 ms.

Key Specifications

Pinout & Package

TSSOP-16 dual-die package with exposed thermal pad; pin-compatible with MLX90316xDC-BCS variant and supports full redundancy via isolated die power/ground domains (VDD1/VSS1 and VDD2/VSS2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MLX90316EGO-BCG-000-SP, MLX90363GO-ADB-000-SP trades redundancy for higher resolution and lower thermal drift, while AMS AS5055A-TS offers compact packaging at the cost of reduced configurability, diagnostics, and mechanical tolerance.

Availability

MLX90316EGO-BCG-000-SP is available at Aetrix Electronics and suitable for automotive throttle position sensing, steering angle measurement, and ride height control systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MLX90316EGO-BCG-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 and industrial applications, with core expertise in magnetic sensing, infrared thermometry, and automotive ASICs.

The MLX90316 product line delivers contactless absolute rotary position sensing using Triaxis® Hall technology and integrated magneto-concentrators, targeting high-reliability automotive subsystems such as powertrain, chassis, and ADAS where mechanical wear and environmental robustness are critical.

FAQ

What output interfaces does the MLX90316EGO-BCG-000-SP support?

The MLX90316EGO-BCG-000-SP supports three configurable output modes: ratiometric analog voltage (0–VDD), PWM (100–1000 Hz), and 3-wire SPI (MOSI/MISO/SCLK with individual /SS per die). All modes are programmable via EEPROM and accessible without changing hardware. The dual-die TSSOP-16 package allows independent configuration of each die's output mode, enabling mixed-mode operation for redundancy verification.

How is redundancy implemented in the MLX90316EGO-BCG-000-SP?

The MLX90316EGO-BCG-000-SP implements hardware-level redundancy through two physically independent sensor dies in a single TSSOP-16 package, each with dedicated VDD/VSS/VDIG pins, separate SPI interfaces (SCLK1/MOSI1/MISO1//SS1 and SCLK2/MOSI2/MISO2//SS2), and isolated analog outputs (OUT1/OUT2). This architecture enables cross-die comparison, fault detection, and fail-operational behavior required for ASIL-B automotive systems.

What is the role of the Integrated Magneto-Concentrator (IMC) in the MLX90316EGO-BCG-000-SP?

The Integrated Magneto-Concentrator (IMC) in the MLX90316EGO-BCG-000-SP is a ferromagnetic structure deposited directly on the die surface that concentrates and redirects the horizontal component of the magnetic field from an end-of-shaft dipole magnet onto the Triaxis® Hall sensing elements. This enables accurate angular measurement despite large airgaps (±1 mm) and off-axis misalignment (±2°), eliminating sensitivity to magnet placement variations common in automotive assemblies.

Can the MLX90316EGO-BCG-000-SP be calibrated after soldering to the PCB?

Yes, the MLX90316EGO-BCG-000-SP supports full end-of-line calibration via its 3-wire SPI interface using the Melexis PTC-04 programming unit. All transfer characteristics-including offset, gain, clamping levels, linearity correction points, thermal drift compensation, and filter coefficients-can be programmed post-assembly through the VDD-VSS-OUT pins without requiring additional test fixtures. Calibration data is stored in 128 B EEPROM with CRC protection.

What is the maximum magnetic field the MLX90316EGO-BCG-000-SP can withstand without damage?

According to the official datasheet, the MLX90316EGO-BCG-000-SP has an absolute maximum magnetic flux density rating of ±700 mT. Operation above 70 mT begins to saturate the IMC, increasing linearity error, but the device remains undamaged up to the 700 mT limit. For optimal accuracy, Melexis specifies 20–70 mT as the recommended operating range with a magnet temperature coefficient of -2400 ppm/°C.