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Melexis MLX80339 Code-Free Three-Phase Fan Driver ICs

Melexis MLX80339 Code-Free Three-Phase Fan Driver ICs are code-free brushless DC (BLDC) motor controllers for sensorless fans and pumps up to 40W. These Melexis three-phase fan driver ICs feature pre-validated logic and an intuitive interface, enabling rapid deployment without software development. The MLX80339 supports both pulse-width modulation (PWM) and serial control interfaces and is ideal for devices such as server cooling fans and residential fans.  

Features

  • Motor driver with four half-bridges
    • 0.35Ω typical RON for one half-bridge + shunt
    • 2x NFET for each half-bridge
    • On-chip charge-pump for top-NFETs
    • VDS protection for all NFETs
  • Code-free
  • PWM, UART, and I2C control interfaces
  • Extended operating temperature range
    • -40°C to +150°C (IC range)
    • -40°C to +125°C (ambient range)
  • AEC-Q100 qualified

Applications

  • Cooling fans
  • Ceiling fans
  • Automotive seat ventilation
  • Motors
  • Actuators
  • Pumps
  • Related systems

Specifications

  • Control
    • Up to 20W at 12V
    • Up to 40W at 24V
  • Up to 3A current limit
  • 6V to 26V supply voltage range
  • Integrated under- and overvoltage, overcurrent, and over-temperature protection
  • Compact SO8-EP package

Block Diagram

Block Diagram - Melexis MLX80339 Code-Free Three-Phase Fan Driver ICs

Application Example

Application Circuit Diagram - Melexis MLX80339 Code-Free Three-Phase Fan Driver ICs
Publicado: 2026-04-06 | Actualizado: 2026-04-08