Texas Instruments DRV5055-5057EVM

Overview

DRV5055-5057EVM from Texas Instruments is an evaluation module designed to assess the performance of the DRV5055, DRV5056, and DRV5057 ratiometric and PWM-output linear Hall effect sensors. It integrates 12 sensor variants (A1–A4 for each device), a MSP430FR4133 microcontroller, LCD display, USB power interface, and magnetic stimulus support - enabling rapid functional validation of magnetic field sensing across gain ranges from 7.5 mV/mT to 120 mV/mT or 0.15% D/mT to 1.2% D/mT.

For engineers reviewing the DRV5055-5057EVM datasheet, DRV5055-5057EVM pinout, DRV5055-5057EVM application, or DRV5055-5057EVM equivalent, this EVM supports quick-start magnetic field measurement, gain variant comparison, real-time LCD readout (voltage, mT, % duty cycle), and in-circuit programming via MSP-FET or LaunchPad - all without external instrumentation or custom firmware development.

Technical Context

The DRV5055-5057EVM implements a plug-and-play architecture centered on the MSP430FR4133 microcontroller, which performs automatic zero-point calibration at power-up, continuous sampling of selected Hall sensor outputs, and 32-sample averaging before display formatting. It supports three measurement modes (voltage, magnetic flux density in mT, and % duty cycle) selected via slide switch K1.

Hardware integration includes a TCA9535 I²C GPIO expander for LED indicators and slider status reading, CD74HC153 dual 4:1 multiplexer for routing DRV5057 PWM outputs, LP5907MFX-3.3 LDO for stable 3.3-V rail, and SN74LVC1G17 Schmitt-trigger debouncing for push-button S1 - ensuring robust user interaction and signal integrity across all 12 Hall sensor channels.

Key Specifications

Availability

DRV5055-5057EVM is available at Aetrix Electronics and suitable for magnetic sensor evaluation, Hall effect IC qualification, and automotive/industrial position-sensing design validation requiring stable component supply and full technical documentation support.

Supply support for DRV5055-5057EVM 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

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision sensing, low-power microcontrollers, and power management ICs.

The DRV5055-5057EVM belongs to TI's Hall effect sensor evaluation platform family, engineered to accelerate development of contactless current, position, and proximity sensing systems in automotive, industrial, and consumer applications.

FAQ

What is the primary function of the DRV5055-5057EVM?

The DRV5055-5057EVM is an evaluation module that enables functional testing and comparative analysis of Texas Instruments' DRV5055, DRV5056, and DRV5057 linear Hall effect sensors. It provides immediate out-of-box operation using USB power, onboard calibration, real-time LCD readouts, and seamless switching between all 12 gain variants - eliminating the need for external test equipment or custom hardware during early-stage sensor selection and system prototyping.

Which Hall effect sensors are supported on the DRV5055-5057EVM?

The DRV5055-5057EVM supports the complete DRV505x family: DRV5055 (ratiometric analog output), DRV5056 (ratiometric analog output), and DRV5057 (PWM output). Each device is represented with four gain variants (A1–A4), totaling 12 discrete Hall sensors mounted on the board - including PDRV5055A1ELPGQ1 through PDRV5057A4ELPGQ1 - all in TO-92-3 packages.

How does the DRV5055-5057EVM handle calibration and measurement accuracy?

The DRV5055-5057EVM performs automatic zero-point calibration at power-up when no magnetic field is present, establishing the baseline for mT measurements. It collects 32 samples per sensor channel, computes the average, and applies gain-specific scaling before displaying results on the VI-401-DP-RC-S LCD. This process ensures repeatable, noise-reduced readings across all 12 sensor variants without manual adjustment or external reference.

Can the firmware of the DRV5055-5057EVM be modified or updated?

Yes, the DRV5055-5057EVM features an MSP430FR4133IG56R microcontroller with onboard J1 header for programming and debugging. The source code is publicly available in the DRV5055/5056/5057 product folders on ti.com under Tools and Software. Users can reprogram the MCU using an MSP-FET Flash Emulation Tool or repurpose an MSP430FR4133 LaunchPad to customize measurement logic, display formats, or communication protocols.

What accessories are included with the DRV5055-5057EVM kit?

The DRV5055-5057EVM kit includes one evaluation board, one neodymium cylindrical magnet (H1, 0.187" dia × 1.000" height), and one USB 1.1 cable (H2, 5.9 ft / 1.8 m). No additional power supplies, programmers, or test equipment are required for basic operation - only a standard USB port for power and optional MSP-FET or LaunchPad for firmware updates.