MLX80339 / Code-free PWM-Serial driver for BLDC motor (2A)
The MLX80339 is a code-free 3-phase BLDC motor controller IC designed for a wide range of applications across multiple industries. It efficiently drives small, sensorless 3-phase fan and pump motors up to 40W. It is ideal for devices such as server cooling fans and residential fans. Its pre-validated logic and intuitive interface enable rapid deployment without the need for software development. The IC is compatible with both PWM and serial control interfaces, making it a flexible motor driver for currents < 2 A. The ability to communicate with an ECU via a digital I2C and UART interface, as well as a legacy PWM/FG interface, provides flexibility for integration into existing and new systems.
MLX80339 Features and benefits
- Code-free
- Control interface: PWM, UART, I2C
- Extended operating range
- Supply voltage range from 5.5 V to 26 V
- Junction temperature from -40 °C to 150 °C
- Integrated motor bridge driver (< 40W)
- 350 mOhm typical per phase (HS+LS+Shunt)
- up to 20W motors at 12V, 40W at 24V
- Motor control logic
- Sensorless FOC drive for BLDC fans/pumps
- Configurable motor parameter
- Protections & Diagnostics
- Undervoltage, overvoltage, overcurrent
- Overtemperature detection & protection
- Package RoHS compliant
- SO8-ep 6x5 mm2
3-phase fan driver
- Sensorless speed control
- from 1 RPM up to 100k RPM motors
- silent & efficient FOC (Field-Oriented-Control)
- configurable FOC current & speed parameters
- overmodulation option for maximum speed and power
- ECU communication options:
- legacy PWM/FG interface for existing solutions
- digital I2C or UART interface for smarter control
Its minimal PCB design further enhances its suitability for various industrial applications with space constraints.
The MLX80339 supports a supply voltage range from 5.5V to 26V and features an integrated motor bridge driver. It includes extensive protection and diagnostic features, such as undervoltage, overvoltage, overcurrent, and overtemperature detection and protection. These features ensure reliable operation in demanding environments.
3-Phase Fan & Pump Motors
The IC is great for sensorless speed control, offering a quiet and efficient Field-Oriented-Control (FOC). It can handle motors from 1 RPM up to 100k RPM. It's used in:
- Residential fans: bldc ceiling fans, air purifiers, and humidifier fans.
- Automotive: small bldc fans, blowers, and 3-phase seat fans.
- Appliances: bldc washer and dishwasher pumps.
- Industrial: server cooling fans.
- Tools: bldc cordless garden and power tools.
Speed up your development
Accelerate your development with the Code-free Start-to-Run tool. This ecosystem, paired with our Melexis Compact Master (MCM) and evaluation kit, allows you to configure and spin your motor in under 15 minutes.
By eliminating complex software development, the MLX80339 drastically shortens prototyping cycles, moving you from initial setup to a fully operational design at record speed.
MLX80339 Applications
3-phase fan and pump motors
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- server cooling fans
- bldc residential fans, ceiling fans
- bldc air purifiers and humidifier fans
- bldc washer and dishwashers pumps
- bldc cordless garden and power tools
- bldc 3-phase seat fans
- bldc small automotive fans and blowers
Do you need a reliable sensor? Please get in touch – we’d be happy to advise you:
DACOM West offers expert advice and fast delivery for Melexis sensor systems – tailored to your specific requirements.
