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    首頁產(chǎn)品索引NCT7491

    NCT7491

    購買收藏
    ?Remote Thermal Monitor and Fan Controller with PECI 3.0 Interface and SMBus Compatible Master

    制造商：ON

    中文數(shù)據(jù)手冊

    產(chǎn)品信息

    The NCT7491 is a two wire serially programmable hardware monitor. It can monitor 2 remote temperature zones and its own ambient temperature. A PECI 3.0 single wire interface allows the NCT7491 to monitor CPU temperatures. The NCT7491 also implements an SMBus compatible master, allowing it to read automatically from thermal sensors on the SMBus. The NCT7491 can automatically control the speed of 3 fans using PWM control, and monitor the speed of 4 fans. There are 4 analog inputs, used for measuring 12 V, 5 V, 2.5 V and Vccp channels. The NCT7491 supply voltage and PECI V
    voltage are also monitored. Each of the measured temperature, voltage and fan speed values are compared with programmable limits and if any channel is outside the programmed limit an interrupt is generated via the ALERT output pin. A THERM output is also available for fail safe thermal control. Up to 3 GPIO pins are available for digital control or signalling. Communication with the NCT7491 is accomplished via the SMBus/I2C interface which is compatible with industry standard protocols. The SMBus address is set by 2 address selection pins. The NCT7491 is available in a 24 lead QFN or QSOP package and operates over a supply range of 3.0 V to 3.6 V.
    • PECI 3.0 Master for CPU Monitoring
    • SMBus Compatible Master
    • On chip Temperature Sensor
    • 2 Remote Sensor Channels
    • Series Resistance Cancellation on Remote Sensors
    • 3 PWM Fan Control Outputs
    • 4 Tach Monitoring Input
    • PWM Automatic Fan Speed Control
    • 4 Analog Inputs for Voltage Monitoring
    • Vdd Supply Voltage Monitoring
    • PECI V
    • Voltage Monitoring
    • Over temperature Outputs
    • Limit Comparison of Monitored Channels
    • SMBus Address Selection Allows up to 3 Devices
    • Meets SMBus 2.0 Electrical Specifications (fully SMBus 1.1 compliant)
    • These Devices are PbFree, Halogen Free/BFR Free and are RoHS Compliant

    在線購買

    型號制造商描述購買
    NCT7491MNTXGONNCT7491是一款兩線串行可編程硬件監(jiān)控器,可以監(jiān)測兩個遠程溫度區(qū)域和自身的環(huán)境溫度。它還實現(xiàn)了SMBus兼容主設備,可以從SMBus上的熱傳感器自動讀取數(shù)據(jù)。NCT7491可以自動控制3個風扇的速度,并監(jiān)測4個風扇的速度。它還具有用于失效安全熱控制的THERM輸出。NCT7491支持3.0版PECI接口,可以監(jiān)測CPU溫度。NCT7491還具有4個模擬輸入,用于測量12V、5V、2.5V和Vccp通道。NCT7491的工作電壓范圍為3.0V到3.6V。 立即購買
    NCT7491RQR2GON 立即購買

    技術(shù)資料

    標題類型大小（KB）下載
    Remote Thermal Monitor and Fan Controller with PECI 3.0 Interface and SMBus Compatible MasterPDF785 點擊下載
    QFN24, 4x4, 0.5PPDF58 點擊下載
    QSOP24 NBPDF61 點擊下載
    NCT7491_PO.PNGUNKNOW16 點擊下載

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