EMC2113

The EMC2113 is an SMBus compliant fan controller. 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 EMC2113 includes a temperature monitor that measures up to three (3) external diodes and the internal diode. 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 device includes high and low limits for all temperature channels as well as a hardware set critical temperature limit. This hardware set limit drives a dedicated system shutdown pin.

Finally, the device includes an open-drain, active low interrupt pin to flag temperature or fan control errors.

Features
  • Programmable Fan Control circuit 4-wire fan compatible Both Low and High frequency PWM
  • 4-wire fan compatible
  • Both Low and High frequency PWM
  • RPM-based fan control algorithm 2% accurate from 500 RPM to 16k RPM Automatic Tachometer feedback
  • 2% accurate from 500 RPM to 16k RPM
  • Automatic Tachometer feedback
  • Temperature Look-Up Table Controls fan speed or PWM drive setting Eight steps that incorporate up to four temperature zones simultaneously (user selectable) Supports forced DTS or standard temperature data Allows external PWM input (150Hz to 40kHz)
  • Controls fan speed or PWM drive setting
  • Eight steps that incorporate up to four temperature zones simultaneously (user selectable)
  • Supports forced DTS or standard temperature data
  • Allows external PWM input (150Hz to 40kHz)
  • Up to Three External Temperature Channels Supports transistor model for 90nm - 45nm Intel CPUs Resistance Error Correction and Beta Compensation 1°C accurate (60°C to 125°C) 0.125°C resolution Programmable High and Low limits
  • Supports transistor model for 90nm - 45nm Intel CPUs
  • Resistance Error Correction and Beta Compensation
  • 1°C accurate (60°C to 125°C)
  • 0.125°C resolution
  • Programmable High and Low limits
  • Hardware Programmable Thermal Shutdown Temperature Cannot be altered by software 65°C to 127°C Range Dedicated system shutdown interrupt pin
  • Cannot be altered by software
  • 65°C to 127°C Range
  • Dedicated system shutdown interrupt pin
  • Internal Temperature Monitor ±1°C accuracy 0.125°C resolution
  • ±1°C accuracy
  • 0.125°C resolution
  • 3.3V Supply Voltage
  • Open drain interrupt pin
  • SMBus 2.0 Interface SMBus Alert compatible Selectable SMBus Address via pull-up resistor and ADDR_SEL pin Block Read and Write
  • SMBus Alert compatible
  • Selectable SMBus Address via pull-up resistor and ADDR_SEL pin
  • Block Read and Write
  • Available in 16-pin 4mm x 4mm QFN RoHS Compliant package
  • Notebook Computers
  • Projectors
  • Graphics Cards
  • Industrial and Networking Equipment
Parameter
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
Documents
EMC2113 RPH-Based Fan Controller with Multiple Temperature Zones & Hardware TherData Sheets11/19/20131021KB
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
AN17.4 - RPM to TACH Counts ConversionAppNote05/05/2009447KB
AN18.15 - PCB Design Guidelines for QFN and DQFN PackagesAppNote10/16/2014205KB
EMC2113 RPM-Based Fan Controller with Multiple Temperature Zones & Hardware TheProduct Briefs10/08/2009209KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
EMC2113-1-AP-TR16QFN-40C to +125CT/R1.551.291.181.141.12
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
EMC2113-1-AP-TR0.0417000.21212116QFN4x4x0.9mmMatte Tine3
EMC2113 RPH-Based Fan Controller with Multiple Temperature Zones & Hardware Ther EMC2113
EMC2113 RPH-Based Fan Controller with Multiple Temperature Zones & Hardware Ther EMC2113
AN10.14 EMC2113
AN12.14 EMC2113
AN13.19 EMC2113
AN16.4 EMC2113
AN17.4 EMC2305
AN18.15 LAN9220
EMC2113 RPM-Based Fan Controller with Multiple Temperature Zones & Hardware The EMC2113