Melexis Technologies NV EVB90333-DC

Overview

EVB90333-DC from Melexis is an evaluation board for the MLX90333 Triaxis® 3D position sensor IC in SOIC-8 package, supporting ratiometric analog, PWM, and SPI output modes with 12-bit angular resolution and programmable transfer characteristics for joystick, linear stroke, and rotary position sensing in industrial HMI and automotive control systems.

For engineers reviewing the EVB90333-DC datasheet, pinout, applications, or equivalent options, this board enables rapid validation of MLX90333 sensor behavior under varying magnetic field configurations, end-of-line calibration via PTC-04, and interface testing with host controllers using analog, PWM, or 3-wire SPI protocols.

Technical Context

The EVB90333-DC implements a dedicated hardware interface to the MLX90333 SOIC-8 device, providing regulated 5 V supply, configurable pull-up/pull-down networks for OUT1/OUT2, isolated SPI header (MOSI/MISO/SCLK/SS), and test point access to all 8 pins including VDD, VSS, VDIG, and diagnostic outputs. It supports both single-die operation and full redundancy verification when paired with dual-die variants.

Board-level design includes EMC-optimized grounding per datasheet recommendations, jumper-selectable output mode (Analog/PWM/SPI), on-board decoupling capacitors matching MLX90333 layout guidelines, and compatibility with Melexis PTC-04 programming unit via standard 3-pin connector (VDD–VSS–OUT), enabling full end-of-line calibration of alpha/beta transfer curves, clamping, dead zone, and filter parameters.

Key Specifications

Availability

EVB90333-DC is available at Aetrix Electronics and suitable for industrial human-machine interface development, automotive pedal/lever position prototyping, and medical device motion-sensing validation requiring stable component supply and rapid sensor characterization.

Supply support for EVB90333-DC 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 applications, with core expertise in magnetic sensing, infrared thermometry, and LIN/CAN system solutions.

The EVB90333-DC belongs to Melexis' evaluation platform product line, designed specifically to accelerate development of contactless position sensing systems using Triaxis® technology, targeting high-reliability applications in harsh environments.

FAQ

What is the primary function of the EVB90333-DC evaluation board?

The EVB90333-DC evaluation board is a hardware platform designed exclusively for evaluating the MLX90333 Triaxis® 3D position sensor IC in SOIC-8 package. It provides complete electrical interfacing-including power regulation, output signal conditioning, SPI headers, and PTC-04 calibration connectivity-to enable functional validation, magnetic field response testing, and end-of-line programming of transfer characteristics such as alpha/beta discontinuity points, clamping, and filtering. The EVB90333-DC does not contain an active IC itself but hosts and supports the MLX90333 device.

Which MLX90333 package variants are supported by the EVB90333-DC?

The EVB90333-DC is mechanically and electrically configured for the SOIC-8 package variant of the MLX90333, identified by the "DC" package code in the ordering information. It is not compatible with the TSSOP-16 dual-die ("GO") variant due to differing pin count, layout, and terminal assignments. The board's footprint, test point locations, and jumper configuration align precisely with the SOIC-8 pinout defined in Section 4 of the MLX90333 datasheet Revision 008.

Does the EVB90333-DC include the MLX90333 IC, or is it sold separately?

The EVB90333-DC evaluation board is shipped with the MLX90333 IC pre-mounted in its SOIC-8 socket. The board includes the MLX90333LDC-BCH-000-RE variant (−40 °C to +150 °C, SOIC-8, standard option, reel packing) as specified in the Melexis ordering table. No additional soldering or component installation is required to begin evaluation-power, host interface, and magnet setup are the only prerequisites for operation of the EVB90333-DC.

Can the EVB90333-DC be used to calibrate the MLX90333 sensor?

Yes, the EVB90333-DC is fully compatible with the Melexis PTC-04 programming unit for end-of-line calibration of the MLX90333 IC it hosts. Using the dedicated 3-pin connector (VDD–VSS–OUT), the PTC-04 communicates directly with the MLX90333's EEPROM to configure programmable parameters including alpha/beta transfer curve shape, clamping levels, dead zone, filter coefficients, and diagnostic settings-all without requiring external microcontroller firmware. This capability is integral to the EVB90333-DC's design purpose.

What output interfaces can be tested using the EVB90333-DC?

The EVB90333-DC supports all three output modes of the MLX90333: ratiometric analog voltage (OUT1/OUT2), PWM signal (programmable 100–1000 Hz frequency), and 3-wire SPI (MOSI/MISO/SCLK/SS). Jumper settings allow selection between modes, and test points provide direct oscilloscope or logic analyzer access to each output. The board also exposes VDIG, diagnostic flags, and unused pins per datasheet guidance, enabling comprehensive interface validation for host controller integration.