Melexis has launched the MLX81339, a configurable motor driver with a pulse width modulation (PWM)/serial interface for a range of industrial applications. This motor driver IC is designed for compact three-phase brushless DC (BLDC) and stepper motor control up to 40 W in industrial applications such as fans, pumps, and positioning systems.
(Source: Melexis)
The motor driver targets a range of markets including smart industrial and consumer sectors, in applications such as positioning motors, thermal valves, robotic actuators, residential and industrial ventilation systems, and dishwashing pumps. The MLX81339 is also qualified for automotive fan and blower applications.
The motor control IC features programmable flash memory that enables full application customization. Designed for three-phase BLDC or bipolar stepper motors, these advanced drivers use silent field-oriented control (FOC) and ensure reliable startup, stopping, and precise speed control from low to maximum speed, Melexis said.
The MLX81339 motor driver supports control up to 20 W at 12 V and 40 W at 24 V, integrating a three-phase driver with a configurable current limit up to 3 A, as well as under/overvoltage, overcurrent, and over-temperature protection. Other key specifications include a wide supply voltage range of 6 V to 26 V and an operating temperature range of -40°C to 125°C (junction temperature up to 150°C).
The motor driver offers quiet, robust motor operation, running reliably through load transients and fault recovery, avoiding the unexpected resets common in less sophisticated drivers, Melexis said.
The MLX81339 includes 8× general-purpose IOs and PWM, FG, I²C, UART, and SPI interfaces for easy integration into both legacy and smart systems. It also supports both sensor-based and sensorless control.
“By enabling sensorless FOC control in a compact format, with a highly configurable version available and a plug-and-play code-free variant to come, we’re helping engineers bring smart motor applications to life faster and more efficiently,” said Marc Lambrechts, product line director at Melexis, in a statement.
Melexis also offers the Melexis StartToRun webtool, which expedites motor driver prototyping, eliminating engineering tasks by generating configuration files based on simple user inputs. In addition to the motor and electrical parameters, the tool includes prefilled mechanical values.
The MLX81339, housed in QFN24 and SO8-EP packages, is available now. The code-free and configurable MLX80339 for rapid deployment will be released in the first quarter of 2026.
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