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    首页产品索引EMC6D103

    EMC6D103

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    Programmable Triple Fan Manager

     

    产品信息

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    The EMC6D103 is an environmental monitoring device with automatic fan control capability. This ACPI compliant device provides hardware monitoring for up to five voltages and three thermal zones, measures the speed of up to four fans, and controls the speed of multiple DC fans using Pulse Width Modulator (PWM) outputs. High frequency and low frequency PWMs are supported.

    The EMC6D103 hardware monitor provides analog inputs for monitoring external voltages of +2.5V, +5V, +12V and Vccp. This device has the capability to monitor its own internal VCC power supply, which may be connected to either main power (VCC) or the suspend power well (VTR). In addition to monitoring the processor voltage, VID inputs are available to identify the voltage specification. External components are not required for voltage scaling or similar treatment.

    The EMC6D103 hardware monitor includes support for monitoring three thermal zones: two external and one internal. The external temperatures are measured via thermal diode inputs capable of monitoring remote devices. In addition, they are equipped with an ambient temperature sensor for measuring the internal temperature.

    Pulse Width Modulators (PWM) control the speed of the fans by varying the output duty cycle of the PWM. Each PWM can be associated with any or all of the thermal zones monitored. As the temperature of the associated zone varies, the PWM duty cycle is adjusted accordingly. The Ramp Rate Control feature controls the rate of change of the PWM output, thereby reducing system noise created by changing the fan speed. The speed of each fan is monitored by a Fan Tachometer input. The measured values are compared to values stored in Limit Registers to detect if a fan has stalled or seized.

    Fan speed may be under host software control or automatic. In host control mode, the host software continuously monitors temperature and fan speed registers, makes decisions as to desired fan speed and sets the PWM's to drive the required fan speed. This device offers an interrupt output signal (INT#), which may be used to interrupt the host on out-of-limit temperature or voltage condition enabling an ACPI response as opposed to the host software continuously monitoring status. In auto "zone" mode, the logic continuously monitors the temperature and fan speeds and adjusts speeds without intervention from the host CPU. Fan speed is adjusted according to an algorithm using the temperature measured in the selected zone, the high and low limits set by the user, and the current fan speed.

    Features

      3.3 Volt Operation (5 Volt Tolerant Input Buffers)

      SMBus 2.0 Compliant Interface (Fixed, Not Discoverable) with Three Slave Address Options

      Fan Control

      PWM (Pulse Width Modulation) Outputs (3)

      Fan Tachometer Inputs (4)

      Programmable Automatic Fan Control Based on Temperature

      Backwards Compatible with Fans Requiring Lower Frequency PWM Drive

      High Frequency Fan Support for 4 Wire Fans

      One Fan Can Be Controlled from As Many As 3 Temperature Zones

      Fan Ramp Rate Control for Acoustic Noise Reduction

      Power Savings Mode

      Two Monitoring Modes: Continuous or Cycling (for Power Savings)

      Two Low Power Modes When Monitoring if Off: Sleep and Shutdown

      Temperature Monitor

      Monitoring of Two Remote Thermal Diodes (+/- 3 Deg C Accuracy)

      Internal Ambient Temperature Measurement

      Limit Comparison of All Monitored Values

      Interrupt Pin for Out-of-Limit Temperature Indication

      Voltage Monitor

      Monitor Power Supplies (+2.5V, +5V, +12V, Vccp and VCC)

      Limit Comparison of All Monitored Values

      Interrupt Pin for Out-of-Limit Voltage Indication

      5 VID (Voltage Identification) Inputs

      XOR Tree Test Mode

      24-Pin SSOP RoHS Compliant Package

    电路图、引脚图和封装图

    在线购买

    型号制造商描述购买
    EMC6D103-CZCHoneywellMicroelectronics&PrecisionSensors 立即购买
    EMC6D103-CZC-TRSII Semiconductor CorporationICVOLTDETECTOR2.7VSOT23-5 立即购买

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