首页产品索引TC655

    TC655

    购买收藏
    TC655 Dual PWM fan speed controller with thermistor input, temperature proportional speed control, SMBus speed programming

     

    产品信息

    The TC655 is a dual PWM mode fan speed controller with FanSense™ TM technology for use with brush-less DC motors. The device allows temperature proportional speed control and therefore accomplishes lower acoustic fan noise and longer fan life. The TC655 reads the voltage provided by an external ther-mistor (or voltage output temperature sensor) and adjusts a 30% to 100% PWM duty cycle output to the fan with respect to the input temperature voltage. The PWM duty cycle can also be programmed via SMBus to allow fan speed control without the need of an external thermistor.

    In normal fan operation, pulse trains are present at the SENSE pin. These pulses are used to calculate the fan RPM. The fan RPM data is used to detect a worn out, stalled, open or unconnected fan. An RPM level below the user-programmable threshold causes the TC655 to assert a logic low alert signal (FAULT). Thedefault value is 500RPM. The TC655 consumes only 0.3mA during operation and can also enter a low-power shutdown mode by setting the appropriate bit in the configuration register.

    Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life
    FanSense™ Protects Against Fan Failure
    Provides RPM Data
    Over-Temperature Detection
    2-wire SMBus Compatible Interface
    3.0V to 5.5V Supply Range
    Fan Voltage Independent of Supply Voltage – Supports Any Fan Voltage
    Supports Low Cost NTC/PTC Thermistors

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    TC655EUNTRTorexIC SUPERVISOR 1 CHANNEL 6USPC 立即购买
    TC655EUNTorexIC SUPERVISOR 1 CHANNEL 6USPC 立即购买

    应用案例更多案例

    系列产品索引查看所有产品

    TC1412TC4627TPS51716TP2540
    TMP06TLC2578TLV3691TLC59582
    TPS82140TC654TP2535TMP468
    TC682TC8020TJA1042T/3/1JTMP36
    TPIC2010TL431-DIETPIC2050TC1044S
    Copyright ©2012-2024 hqchip.com.All Rights Reserved 粤ICP备14022951号工商网监认证 工商网监 营业执照