Single chip from Melexis drives BLDC motors from 100 to 1,000W

The latest addition to Melexis’ Generation II motor driver portfolio offers more flash memory, a LIN interface and easy sensor integration, says the company.

The MLX81206 has 64kbyte flash memory and supports a LIN 1.x/LIN 2.x and SAE J602-compliant interface. This, explains Melexis, is the most widely used digital communications interface standards in the automotive sector, making the MLX81206 suitable for pre-driving a range of high-power brushless direct current (BLDC) motors. It can drive 12V motors in either a sensor or sensorless configuration, making it flexible enough to be used for silent and high-performance heating, ventilation and air conditioning (HVAC) blowers, engine cooling fans and pumps in conventional, hybrid and full electric vehicles (EVs).

In this addition to the driver portfolio, engineers have combined hardware and software in a single chip, including an embedded driver with high-voltage analogue circuitry and digital technology, including flash and non-volatile RAM, with an embedded microcontroller.

The MLX81206 can interface to a range of sensors, such as the MLX90380 resolver for dynamic pumps driven in field oriented control (FOC) mode.

The IC is offered in a small footprint QFN32 package (MLX81206) or in a leaded package TQFP48 (MLX81208).

Melexis designs, develops and delivers micro-electronic products. The company’s mixed-signal semiconductor sensor and actuator components address the challenges of integrating sensing, driving and communication into next-generation products and systems that improve safety, raise efficiency, support sustainability and enhance comfort.

Building on expertise in automotive semiconductor sensors, Melexis has used its core experience in creating chips for vehicle electronics to expand its portfolio of sensors, driver ICs and wireless devices to also meet the needs of smart appliances, home automation, industrial and medical applications. Melexis sensing solutions include magnetic sensors, MEMS sensors (pressure, TPMS, infrared), sensor interface ICs, optoelectronic single point and linear array sensors and time of flight (ToF). The company’s driver IC portfolio incorporates advanced DC & BLDC motor controllers, LED drivers and FET pre-driver ICs.

Melexis is headquartered in Belgium and employs over 1,500 people in 20 locations worldwide.

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