MAX31785

PRODUCTION

6-Channel Intelligent Fan Controller

Intelligent Fan Controller Cost-Effectively Improves System Energy Efficiency and Reliability

Data Sheet (Rev. 3)
Part Models
4
1ku List Price
Starting From $4.56
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    Part Details

    • Six Independent Channels of Fan Control
      • Supports 3-Wire and 4-Wire Fans
      • Automatic Closed-Loop Fan Speed Control
      • RPM- or PWM-Based Control
      • Optional Manual Mode Control
      • Fast and Slow PWM Frequency Options
      • Staggered Fan Spin-Up Eases Power-Supply Stress
      • Dual Tachometer (12-Fan Support)
      • Fan-Fault Detection
      • Fan-Health Status Meter
      • Nonvolatile Fan Operating Run Time Meter
    • Supports Up to 11 Temperature Sensors
      • Up to Six External Thermal Diodes with Automatic Series Resistance Cancellation
      • One Internal Temperature Sensor
      • Up to Four I²C Digital Temperature Sensors
      • Fault Detection on All Temperature Sensors
    • Available 6-Channel ADC to Measure Remote Voltages
    • PMBus™-Compliant Command Interface
    • I²C/SMBus-Compatible Serial Bus with Bus Timeout Function
    • On-Board Nonvolatile Fault Logging and Default Configuration Setting
    • No External Clocking Required
    • +3.3V Supply Voltage
    MAX31785
    6-Channel Intelligent Fan Controller
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    Documentation

    Data Sheet 1

    Reliability Data 1

    Design Note 1

    Learn More

    Hardware Ecosystem

    Parts Product Life Cycle Description
    Microcontrollers 1
    MAX31782
    		System Management Microcontroller
    Power System Managers & Sequencers 1
    MAX34441
    		Obsolete PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller
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    Tools & Simulations

    Software Development 1

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