EMC2105-BP-TR
ActiveCLOSED LOOP RPM LINEAR FAN CONTROLLER WITH 5 TEMP, ALERT, SHUTDWN, I2C/SMBUS 20 QFN 4X4X0.9MM T/R ROHS COMPLIANT: YES
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EMC2105-BP-TR
ActiveCLOSED LOOP RPM LINEAR FAN CONTROLLER WITH 5 TEMP, ALERT, SHUTDWN, I2C/SMBUS 20 QFN 4X4X0.9MM T/R ROHS COMPLIANT: YES
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Technical Specifications
Parameters and characteristics for this part
| Specification | EMC2105-BP-TR |
|---|---|
| Accuracy | 1 °C, 0.5 °C |
| Function | Fan Control, Temp Monitor |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Alarm | False |
| Output Fan | True |
| Output Type | SMBus |
| Package / Case | 20-VFQFN Exposed Pad |
| Sensing Temperature [Max] | 125 °C |
| Sensing Temperature [Min] | 0 °C |
| Sensor Type | Internal and External |
| Supplier Device Package | 20-QFN-EP (4x4) |
| Topology | Comparator, Tach, Register Bank, ADC (Sigma Delta) |
| Voltage - Supply [Max] | 3.6 V |
| Voltage - Supply [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tape & Reel (TR) | 5000 | $ 1.89 | |
| Microchip Direct | T/R | 1 | $ 2.35 | |
| 25 | $ 1.95 | |||
| 100 | $ 1.77 | |||
| 1000 | $ 1.73 | |||
| 5000 | $ 1.69 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 1.83 | |
Description
General part information
EMC2105 Series
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.
Documents
Technical documentation and resources