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    Electronicdesign Com Products Components Fan Speed Controller Has Auto Shutdown Feature1639
    1. Technologies
    2. Components
    3. Electromechanical

    Fan Speed Controller Has Auto Shutdown Feature

    Sept. 1, 1998
    For use with brushless dc motors, the TC648 is a switch-mode fan speed controller featuring auto-shutdown and over-temperature fault detection. The device is designed to convert any standard two-wire brushless dc fan into an intelligent fan.
    Staff

    Electronicdesign Com Products Components Fan Speed Controller Has Auto Shutdown Feature1639
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    For use with brushless dc motors, the TC648 is a switch-mode fan speed controller featuring auto-shutdown and over-temperature fault detection. The device is designed to convert any standard two-wire brushless dc fan into an intelligent fan. Consisting of a pulse-width modulated (PWM) fan speed controllers and an integrated over-temperature detector, the device controls and monitors brushless dc fans of any current or voltage. Low-frequency (30 Hz) PWM fan speed control is said to reduce acoustic noise, extend fan life, and lower average fan operating current. The device's over-temperature detector output is asserted when measured temperature exceeds a maximum limit, indicating a blocked air intake, fan bearing failure, or system thermal runaway. The auto-shutdown feature automatically suspends fan operation when measured temperature is below a user-programmed minimum setting, making the device well-suited for fan control in NLX power supply of PCs. The controller is available in standard 8-pin plastic DIP and SOIC packages.

    Company: TELCOM SEMICONDUCTOR INC.

    Product URL: Click here for more information

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