Melexis Technologies NV EVB90392_BK_010

Overview

EVB90392_BK_010 from Melexis is a breakout evaluation board for the MLX90392ELQ-AAA-010 3-axis Hall-effect magnetic sensor, operating at 1.8V with ±5mT full-scale range, I²C address 0x0C, and PCB dimensions of 25mm × 35mm. It provides direct access to the sensor's four-pin interface for rapid prototyping of position, angle, and current sensing applications in industrial and automotive subsystems.

For engineers reviewing the EVB90392_BK_010 datasheet, pinout, applications, or equivalent options, this board enables fast validation of MLX90392 sensor configuration, XYZT measurement modes (including continuous 100Hz), filter tuning, and I²C communication setup without level-shifting circuitry - requiring external 1.8V supply and compatible microcontroller.

Technical Context

The EVB90392_BK_010 implements a minimal breakout topology: only the MLX90392 IC and a 100nF decoupling capacitor are mounted; no regulator or level shifter is included. It exposes all four sensor pins (VDD, GND, SDA, SCL) directly to a 4-pin header, mandating external 1.8V power and logic-level compatibility.

Communication occurs via I²C at default 100kHz, supporting serial command interface (9600 baud, 8N1) through an onboard Arduino-compatible microcontroller. Firmware enables register read/write, mode selection (e.g., single/continuous XYZT), sensitivity-aware µT/°C conversion, and GUI-driven configuration using LabVIEW-based host software.

Key Specifications

Availability

EVB90392_BK_010 is available at Aetrix Electronics and suitable for magnetic sensor evaluation, industrial position feedback prototyping, and automotive subsystem development requiring stable component supply and traceable evaluation hardware.

Supply support for EVB90392_BK_010 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 fabless semiconductor company specializing in intelligent sensors and driver ICs for automotive and industrial markets, certified to IATF 16949 and ISO 14001 standards.

The EVB90392 series belongs to Melexis' magnetic sensor evaluation platform product line, designed specifically to accelerate development with their MLX90392 3D Hall-effect sensor family - enabling rapid characterization of sensitivity, noise, temperature drift, and real-time XYZT output behavior.

FAQ

What is the function of the EVB90392_BK_010 evaluation board?

The EVB90392_BK_010 is a breakout evaluation board for the MLX90392ELQ-AAA-010 magnetic sensor. It provides direct access to the sensor's VDD, GND, SDA, and SCL pins via a 4-pin header, with no onboard voltage regulation or level shifting. Its purpose is to simplify initial testing and integration of the ±5mT-range 3-axis Hall sensor in 1.8V systems, supporting I²C communication and serial command-based configuration. The EVB90392_BK_010 does not include a microcontroller for autonomous operation - it relies on an external host or the included Arduino-compatible firmware.

Does the EVB90392_BK_010 include a voltage regulator or level shifter?

No, the EVB90392_BK_010 does not include a voltage regulator or level shifter. As stated in the official documentation, it is the "breakout version" - only the MLX90392 IC and a 100nF decoupling capacitor are mounted. Users must supply a clean, regulated 1.8V source and ensure I²C signal levels match the sensor's 1.8V logic requirement. For 3.3V microcontrollers, the DVK variant (e.g., EVB90392_010_h) is required instead. This design choice keeps the EVB90392_BK_010 minimal, low-cost, and suitable for systems already operating at 1.8V.

What I²C address and communication settings does the EVB90392_BK_010 use?

The EVB90392_BK_010 uses a fixed 7-bit I²C address of 0x0C for the MLX90392 sensor. Default I²C clock frequency is 100kHz, configurable via serial command. Serial communication with the onboard microcontroller operates at 9600 baud, 8 data bits, no parity, 1 stop bit, and no flow control. Responses end with Line Feed (0x0A), and multi-field replies are semicolon-delimited. These settings are standardized across all EVB90392 variants and documented in Revision 004 of the EVB90392 datasheet.

Can the EVB90392_BK_010 perform continuous magnetic measurements?

Yes, the EVB90392_BK_010 supports continuous XYZT measurements at 100Hz. This is achieved by writing mode '5' to register 0x10 of the MLX90392 sensor, then repeatedly reading 10-byte data blocks starting from register 0x00 using the Read Direct command. Temperature (T) is included in the output when enabled. The board's firmware and GUI allow real-time streaming, charting, and CSV logging of this data. To exit continuous mode, write mode '0' back to register 0x10 - returning the EVB90392_BK_010 to idle state.

Is LabVIEW runtime required to use the EVB90392_BK_010 GUI?

Yes, the official GUI for the EVB90392_BK_010 is built in LabVIEW 2019 (32-bit) and requires the free LabVIEW Runtime Engine 2019 (32-bit) to execute. The GUI provides three tabs - Initialization, Commands, and Measuring - enabling COM port connection, I²C frequency adjustment, register read/write, configuration decoding, and real-time XYZT visualization. Without the runtime, the executable will not launch. Alternative control is possible via the documented ASCII serial command set using any terminal program or custom host software.