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    EMC2103-2

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    EMC2103-2 Single PWM fan controller with closed loop, speed table, high frequency support, 4 temperature sensors, I2C, alert

     

    产品信息

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    The EMC2103 is an SMBus compliant fan controller with up to up to 3 external and 1 internal temperature channels. The fan driver can be operated using two methods each with two modes. The methods include an RPM based Fan Speed Control Algorithm and a direct PWM drive setting. The modes include manually programming the desired settings or using the internal programmable temperature look-up table to select the desired setting based on measured temperature.

    The temperature monitors offer 1°C accuracy (for external diodes) with sophisticated features to reduce errors introduced by series resistance and beta variation of substrate thermal diode transistors commonly found in processors.

    The EMC2103 also includes a hardware programmable temperature limit and dedicated system shutdown output for thermal protection of critical circuitry.

    Features

      Programmable Fan Control circuit

      4-wire fan compatible

      High and low frequency PWM

      RPM based fan control algorithm

      2.5% accuracy from 500RPM to 16k RPM

      Detects fan aging and variation

      Temperature Look-Up Table

      Allows programmed fan response to temperature

      Controls fan speed or PWM drive setting

      Allows externally set temperature data to drive fan

      Supports DTS data from CPU

      Up to Three External Temperature Channels (EMC2103-2 only)

      Supports 45nm, 60nm, and 90nm CPU diodes

      Automatically detects and supports CPUs requiring BJT or Transistor models

      Resistance error correction

      Supports discrete transistors (i.e. 2N3904)

      1°C accurate (60°C to 125°C)

      0.125°C resolution

      Hardware Programmable Thermal Shutdown Temperature

      Cannot be altered by software

      65°C to 127°C Range

      Programmable High and Low Limits for all channels

      Internal Temperature Monitor

      2°C accuracy

      0.125°C resolution

      3.3V Supply Voltage

      SMBus 2.0 Compliant

      SMBus Alert compatible

      Two dedicated GPIOs (EMC2103-2 and EMC2103-4 only)

      Available in 12-pin, QFN RoHS Compliant Package (EMC2103-1) or 16-pin, QFN RoHS Compliant Package (EMC2103-2 and EMC2103-4)

    Applications

      Notebook Computers

      Projectors

      Graphics Cards

      Industrial and Networking Equipment

    电路图、引脚图和封装图

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