Melexis

Up to 1A single coil fan driver for 5/12/24/32V applications

MLX90411-consumer
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  • MLX90411 Fandriver Melexis

The MLX90411-consumer is a low-noise all-in-one single-coil fan driver IC with up to 1 A drive capability, suitable for fan, blower or pump applications <15 W. For automotive, see MLX90411-automotive

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Top features

  • All-in-one fan driver, including Hall sensor

  • Up to 1 A motor current

  • Integrated supply clamp: 20V and 40V versions

  • Adaptive commutation for best-in-class efficiency for any fan/blower design, over its full speed operating range

  • Commutation options

    • Maximum torque

    • Very low acoustic noise

  • PWM control input

    • Standby mode

    • Open-loop control with max duty cycle limitation setting

    • Closed loop speed control +/- 1.5%

    • PWM input for on-chip speed control [MLX90411-D only]

      • Integrated pull-up or pull-down

      • Option for inverted PWM input

      • Transfer curve with flexible min. Point

  • Extensive FG|RD output options [MLX90411-D only]

    • Multiple FG ratios (programmable)

    • RD alarm ‘high’ or ‘low’ (programmable)

  • Protections and diagnostics

    • Locked Rotor Protection (LRP) (Programmable)

    • Temperature Shutdown (TSD)

    • Over Voltage protection (OVP) (Programmable)

    • Short circuit protection (OCP)

    • Current limit (CL)

    • FG/RD open drain diagnostics output (Programmable)

  • Certifications MLX90411-consumer

    • UL/VDE/CE ready

    • JEDEC qualified package

  • I2C programming

    • Fast prototyping

    • End-of-line programming

  • Package

    • Straight-lead SOT package (ZE) [MLX90411-D only]

    • Tiny UTDFN 2.5 x 2.0 x 0.4 mm (LD) [MLX90411-B only]

Discover all features
Up to 1A single coil fan driver for 5/12/24/32V applications  -  MLX90411-consumer

Product description

The MLX90411 is a low-noise all-in-one single-coil fan driver IC with up to 1 A drive capability, suitable for fan, blower or pump applications.

For consumer applications

MLX90411-consumer refrigerator white goods The MLX90411-B (IT/Appliances/Industrial) is optimised for 5V, 12V as well as 24V Consumer applications. It comes with a built-in Supply clamp at 20V for 5V and 12V applications, avoiding the need for TVS protection on the supply to handle any motor push back. A 40V Clamp version is available for 24V applications and Li-Ion portable applications up to 32V. Additionally a range of current limit options are available from 330mA up to 960mA for fan/pump applications up to 15W. The MLX90411-B is available in a tiny UTDFN (2.5 x 2.0 x 0.4 mm3) package.

The new MLX90411-D (IT/Appliances/Industrial) is an extension with higher configurability:

  • PWM input for on-chip speed control:
    • Integrated pull-up or pull-down
    • Option for inverted PWM input
    • Transfer curve with flexible min. point
  • Extensive FG|RD output options
    • Multiple FG ratios (programmable)
    • RD alarm ‘high’ or ‘low’ (programmable)

The MLX90411-D is available in a straight-lead SOT package.

MLX90411-consumer - up to 1A single coil fan driver for 5/12/24/32V applications

For automotive applications

The MLX90411-automotive can be found here.

The MLX90411 features several adaptive commutation control options for either lowest acoustic noise or highest efficiency. Both open-loop and closed-loop speed control is possible, with a wide range of dynamic (PI) settings. The device is programmable via an I2C interface and all options are configurable in the on-board EEPROM.

Features and benefits

  • All-in-one fan driver, including Hall sensor

  • Up to 1 A motor current

  • Integrated supply clamp: 20V and 40V versions

  • Adaptive commutation for best-in-class efficiency for any fan/blower design, over its full speed operating range

  • Commutation options

    • Maximum torque

    • Very low acoustic noise

  • PWM control input

    • Standby mode

    • Open-loop control with max duty cycle limitation setting

    • Closed loop speed control +/- 1.5%

    • PWM input for on-chip speed control [MLX90411-D only]

      • Integrated pull-up or pull-down

      • Option for inverted PWM input

      • Transfer curve with flexible min. Point

  • Extensive FG|RD output options [MLX90411-D only]

    • Multiple FG ratios (programmable)

    • RD alarm ‘high’ or ‘low’ (programmable)

  • Protections and diagnostics

    • Locked Rotor Protection (LRP) (Programmable)

    • Temperature Shutdown (TSD)

    • Over Voltage protection (OVP) (Programmable)

    • Short circuit protection (OCP)

    • Current limit (CL)

    • FG/RD open drain diagnostics output (Programmable)

  • Certifications MLX90411-consumer

    • UL/VDE/CE ready

    • JEDEC qualified package

  • I2C programming

    • Fast prototyping

    • End-of-line programming

  • Package

    • Straight-lead SOT package (ZE) [MLX90411-D only]

    • Tiny UTDFN 2.5 x 2.0 x 0.4 mm (LD) [MLX90411-B only]

Documents and tools

Datasheet(s)
Product flyer(s)
Selection guide(s)
Environmental
IC handling and assembly

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Practical applications

thumbnail BEV thermal management

BEV thermal management

In order to optimize energy while increasing the All-Electric Range (AER), a perfect thermal management system is key. Ideal performance of the battery requires a temperature between 20-40℃, no matter the external conditions. Without the heat source of a classical ICE, new sources for heating & cooling need to be optimized. Discover the different modes.
Application - Drone

Drone

Drones can operate by themselves, right? They do, but only with help from our little friends: Melexis ICs. Position of the camera, people detection, temperature scanning, fan cooling, joystick control, … Your drone is only as smart as our sensors.
Application - Gaming

Gaming

Gaming requires Melexis ICs, even more than you imagine. Power control, fan cooling, joystick control. These are only some of the gaming essentials relying on our sensors and actuators. No Melexis ICs? Game over!
Application - Humanoid

Humanoid robots

Sensors are the robot's eyes and ears, whereas actuators make sure robots can move. Melexis can even give them a sense of touch. Sense, comprehend and act. That's what our ICs do.
Application - HVAC and air quality

HVAC & air quality

Melexis makes sure all your HVAC solutions work in optimal way. Energy efficiency is not the only goal. Our ICs take care of pressure monitoring, temperature registration, pre-fire detection and many other crucial parameters. We are conditioned to safeguard your comfort
Application - Kitchen appliances

Kitchen appliances

If you can’t stand the heat, get Melexis ICs. Our FIR sensors make sure you get pre-fire warnings in critical situations. Not only we guarantee the safety in your kitchen, we increase your comfort with solutions like motor control for adapted ventilation.
Application - Microwave oven

Microwave oven

At Melexis we like radiant cooks. Contactless food temperature sensors help you with ease of use and foot safety when using a microwave. Our fan drivers make sure vapor gets evacuated in the most efficient way.
Application - Printer

Printer

Copiers and printers are typical crossroads of mechanical and electronical components. A dream habitat for Melexis ICs. Temperature control of the toner, position of moving parts, cooling of the appliance,… Melexis takes care of it so you have a reliable office tool. You can’t copy that!
Application - Refrigerator

Refrigerator

Your fridge is an essential piece of engineering. To keep it efficient and energy friendly, it requires a lot of Melexis ICs. Single coil fan drivers take care of the cooling, while open door detection makes sure you don’t lose valuable energy. Pressure and current sensors keep the operations safe. Cool, isn’t it?
Application - Relay panel

Relay panel

Your relay panel is the junction of vital circuits in your building. What if a fire destroys it? Is it an open door for burglars to disable the security systems? Melexis sensors enable early fire warning and people detection to ensure maximum security. You can relay this message.
Application - Respirators

Respirators

Respirators are critical equipment. When patients’ health is at stake, only the best solutions are acceptable. Melexis ICs are the perfect match for reliable motor drivers.
Application - Security cameras

Security cameras

Keep an eye on Melexis ICs for security cameras. They enable thermal imaging, people detection and camera motion. Designed for robustness, they keep operating under the harshest of conditions.
Application - Treadmill

Treadmill

Health and fitness appliances are no walk in the park. Thanks to Melexis sensors they operate comfortably and safely and monitor your condition while exercising. You run, we make them run.
Application - Wireless phone charging

Wireless phone charging

Wireless phone charging requires current sensors and cooling to keep it safe and protect the lifetime of your battery. Can Melexis do that? Guilty as charged!