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Single-coil 600 mA fandriver for 5 V, 12 V, 24 V applications

MLX90411

The MLX90411 is an intelligent 1-coil fandriver that operates from 3 V up to 28 V.
The MLX90411K fits 5 V, 12 V as well as 24 V consumer/industrial applications, such as white goods and home appliances.  It’s 600 mA driver stage drives up to 15 W applications on 24 V supply.
The MLX90411L  is AECQ100 certified and can be applied on the automotive battery without additional protections, and survives load dump pulses up to 40 V.  The operating temperature range is from -40 °C to 150 °C.  Typical applications range from LED headlamp fans, seat fans over sensor fans as well as multimedia GPU fans.

The MLX90411 features several adaptive commutation control options for either lowest acoustic noise, or highest efficiency, or lowest EMI.
Both open loop and closed loop speed control is possible, with a wide range of dynamic (PI) settings, for a speed range up to 45,000 electrical RPM.
The device is programmable via an I2C interface and all options are configurable in the on-board EEPROM. Based upon 0.18 μm technology, the tiny MLX90411 is available in a straight-lead SOT package (-ZE package code) and a 2.5 x 2.0 x 0.4 mm UTDFN (LD package code) package.

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Top features

  • All-in-one fan driver, including high sensitivity Hall sensor in small SOT/UTDFN package

  • PWM input for on-chip speed control, and FG- and RD- diagnostics output

  • Wide range of Soft start, and low noise adaptive commutation options, including lead angle control

  • Extensive protections (LRP, OT, OV, CL, Short circuit protection)

  • Optional I2c interface for fast prototyping, and end-of-line factory programming

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Single-coil 600 mA fandriver for 5 V, 12 V, 24 V applications - MLX90411

Features and benefits

  • All-in-one fan driver, including high sensitivity Hall sensor in small SOT/UTDFN package

  • PWM input for on-chip speed control, and FG- and RD- diagnostics output

  • Wide range of Soft start, and low noise adaptive commutation options, including lead angle control

  • Extensive protections (LRP, OT, OV, CL, Short circuit protection)

  • Optional I2c interface for fast prototyping, and end-of-line factory programming

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