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MAX31785ETL Driver Integrated Circuit QFN40 New and original

Classification:

integrated circuit

Product

Subcategory 1


  • Product Description
    • Commodity name: MAX31785ETL Driver Integrated Circuit QFN40 New and original

    The MAX31785 is a closed-loop multichannel fan controller. Automatic closed-loop fan control saves system power by operating the fans at the lowest possible speeds. Added benefits of slower fan speeds include lower audible noise, longer fan life, and reduced system maintenance. Based on a user-programmable lookup table (LUT), the device automatically adjusts the speeds of the six independent fans based on one or more of the 11 available temperature sensors. Alternately, an external host can manually command the fan speeds and the device automatically adjusts the fan speeds. The device contains a fan-health-diagnostic function to help users predict impending fan failures. The device can also monitor up to six remote voltages.

    S 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 S 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 S Available 6-Channel ADC to Measure Remote Voltages S PMBus™-Compliant Command Interface S I2C/SMBus-Compatible Serial Bus with Bus Timeout Function S On-Board Nonvolatile Fault Logging and Default Configuration Setting S No External Clocking Required S +3.3V Supply Voltage

    Six independent fan control channels, supporting three wire and four wire fans
    Automatic closed-loop fan speed control
    Control based on RPM or PWM
    Optional manual mode control
    Fast and Slow PWM Frequency Options
    Interlocking fan start reduces power pressure
    Dual tachometer (supporting 12 fans)
    Fan fault detection
    Fan health status meter
    Non volatile fan running time meter
    Supports up to 11 temperature sensors
    Up to six external thermistor diodes with automatic series resistance elimination function
    An internal temperature sensor
    Up to four I2C digital temperature sensors
    Fault detection of all temperature sensors
    Available 6-channel ADC for measuring remote voltage
    Command interface compliant with PMBus
    I2C/SMBus compatible serial bus with bus timeout function
    Onboard non-volatile fault records and default configuration settings
    No need for an external clock
    +3.3V supply voltage
    Application field
    Network switch/router
    base station
    server
    Smart Grid Network System
    industrial control

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