MAX6639

PRODUCTION

2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller

High-Frequency, Dual Temperature Sensor and Fan Controller with Selectable Address and Closed-Loop Operation

Data Sheet (Rev. 3)
Part Models
7
1ku List Price
Starting From $2.09
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    Part Details

    • Two Thermal-Diode Inputs
    • Up to 25kHz PWM Output Frequency
    • Three Selectable SMBus Addresses
    • Local Temperature Sensor
    • 1°C Remote Temperature Accuracy
    • Two PWM Outputs for Fan Drive (Open Drain; Can be Pulled Up to +13.5V)
    • Programmable Fan-Control Characteristics
    • Automatic Fan Spin-Up Ensures Fan Start
    • Controlled Rate-of-Change Ensures Unobtrusive Fan-Speed Adjustments
    • ±3% Fan-Speed Measurement Accuracy
    • Temperature Monitoring Begins at POR for Fail-Safe System Protection
    • Active-Low OT and Active-Low THERM Outputs for Throttling or Shutdown
    • Measures Temperatures Up to +150°C
    • MAX6639F is Optimized for n = 1.021 for Penryn Compatibility
    MAX6639
    2-Channel Temperature Monitor with Dual, Automatic, PWM Fan-Speed Controller
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    Documentation

    Data Sheet 1

    Reliability Data 1

    Technical Articles 6

    Learn More

    Tools & Simulations

    Software Development 1

    IBIS Model 1

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