EMC2103-2

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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.

产品特性
  • Programmable Fan Control circuit 4-wire fan compatible High and low frequency PWM
  • 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
  • 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
  • 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
  • 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
  • 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
  • 2°C accuracy
  • 0.125°C resolution
  • 3.3V Supply Voltage
  • SMBus 2.0 Compliant SMBus Alert compatible
  • 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)
  • Notebook Computers
  • Projectors
  • Graphics Cards
  • Industrial and Networking Equipment
技术参数
Parameter Name Value Value
comments Fan Controller with Thermal Mgt Fan Controller with Thermal Mgt
# Fans Drivers 1 1
PWM/Linear Control PWM PWM
# Remote Temperature Monitors 3 3
Ambient Temperature Sensor 1 1
Typical Accuracy ±0.5 ±0.5
Max Accuracy ±1.0 ±1.0
Maximum Temperature Range -40 to 125 -40 to 125
Vcc Range (V) 3.0 to 3.6 3.0 to 3.6
SMBus Alert Yes Yes
System Shutdown Yes Yes
文档资料
EMC2103 RPM-Based Fan Controller with Hardware Thermal ShutdownData Sheets11/19/2013709KB
AN10.14 - Using Temperature-Sensing Diodes with Remote Thermal SensorsAppNote11/17/2014250KB
AN12.14 - Remote Thermal Sensing Diode Selection GuideAppNote11/17/2014293KB
AN13.19 - Resistance Error CorrectionAppNote11/09/2014161KB
AN16.4 - Using Anti-Parallel Diodes (APD) with Microchip's Remote Temperature Sensing DevicesAppNote11/09/2014294KB
AN18.15 - PCB Design Guidelines for QFN and DQFN PackagesAppNote10/16/2014205KB
EMC2103 RPM-Based Fan Controller with Hardware Thermal Shutdown Data BriefProduct Briefs01/08/2010285KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
EMC2103-2-AP-TR16QFN-40C to +125CT/R1.551.291.181.141.12
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器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
EMC2103-2-AP-TR0.0417000.21212116QFN4x4x0.9mmMatte Tine3
EMC2103 RPM-Based Fan Controller with Hardware Thermal Shutdown EMC2103-4
EMC2103 RPM-Based Fan Controller with Hardware Thermal Shutdown EMC2103-4
AN10.14 EMC2113
AN12.14 EMC2113
AN13.19 EMC2113
AN16.4 EMC2113
AN18.15 LAN9220
EMC2103 RPM-Based Fan Controller with Hardware Thermal Shutdown Data Brief EMC2103-4