The EMC2105 is an SMBus compliant fan controller with up to five (up to 4 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 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 EMC2105 also includes a hardware programmable temperature limit and dedicated system shutdown output for thermal protection of critical circuitry.
Features
Programmable Fan Control circuit
600mA, 5V, High Side Fan Driver
Optional fan aging detection
RPM based fan control algorithm
2% accuracy from 500RPM to 16k RPM
Temperature Look-Up Table
Allows programmed fan response to temperature
1 to 4 thermal zones to control fan driver
Controls fan speed or fan drive setting
Allows externally generated temperature data to control fan drivers including two DTS channels
Up to Four External Temperature Channels
Designed to support 45nm, 60nm, and 90nm CPUs
Automatically detects and supports CPUs requiring the BJT or Transistor models
Resistance error correction
1°C accurate (60°C to 100°C)
0.125°C resolution
Detects fan aging and variation
Up to three thermistor compatible voltage inputs
Hardware Programmable Thermal Shutdown Temperature
Cannot be altered by software
60°C to 122°C Range or 92°C to 154°C Range
Programmable High and Low Limits for all channels
3.3V Supply Voltage
SMBus 2.0 Compliant
SMBus Alert compatible
Available in 20-pin, QFN RoHS Compliant Package (4mm x 4mm)
Applications
Notebook Computers
Embedded Applications
Projectors
Industrial and Networking Equipment
EMC2105 封装图
EMC2105 封装图
型号 | 制造商 | 描述 | 购买 |
---|---|---|---|
EMC2105-BP-TR | SII Semiconductor Corporation | ICVOLTDETECTOR2.8VSOT23-5 | 立即购买 |
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