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EMC2103-2

Status: In Production

Features:

  • 4-wire fan compatible
  • High and low frequency PWM
  • 2.5% accuracy from 500RPM to 16k RPM
  • Detects fan aging and variation
  • 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
  • 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
  • Cannot be altered by software
  • 65°C to 127°C Range
  • Programmable High and Low Limits for all channels
  • 2°C accuracy
  • 0.125°C resolution
  • 3.3V Supply Voltage
  • 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
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

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.

For product comparison, please consider: EMC2113

Additional Features

    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
Parametrics
Name
Value
comments
Fan Controller with Thermal Mgt
# Fans Drivers
1
PWM/Linear Control
PWM
# Remote Temperature Monitors
3
Ambient Temperature Sensor
1
Typical Accuracy
±0.5
Max Accuracy
±1.0
Maximum Temperature Range
-40 to 125
Vcc Range (V)
3.0 to 3.6
SMBus Alert
Yes
System Shutdown
Yes

Documents

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
EMC2103-2-AP-TR
0.041700
0.212121
16
QFN
4x4x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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