EMC2112-BP-TR
ActiveCLOSED LOOP 600MA LINEAR RPM BASED FAN CONTROLLER WITH 4 TEMP, ALERT, SHTDWN, I2C/SMBUS 20 QFN 4X4X0.9MM T/R ROHS COMPLIANT: YES
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EMC2112-BP-TR
ActiveCLOSED LOOP 600MA LINEAR RPM BASED FAN CONTROLLER WITH 4 TEMP, ALERT, SHTDWN, I2C/SMBUS 20 QFN 4X4X0.9MM T/R ROHS COMPLIANT: YES
Technical Specifications
Parameters and characteristics for this part
| Specification | EMC2112-BP-TR |
|---|---|
| Accuracy | 2 °C |
| Function | Fan Control, Temp Monitor |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | 0 °C |
| Output Alarm | True |
| Output Fan | True |
| Output Type | 2-Wire SMBus |
| Package / Case | 20-VFQFN Exposed Pad |
| Sensor Type | Internal and External |
| Supplier Device Package | 20-QFN (4x4) |
| Topology | Comparator, Tach, Register Bank, ADC (Sigma Delta) |
| Voltage - Supply [Max] | 5.5 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 | Cut Tape (CT) | 1 | $ 1.94 | |
| Digi-Reel® | 1 | $ 1.94 | ||
| Tape & Reel (TR) | 5000 | $ 1.56 | ||
| Microchip Direct | T/R | 1 | $ 1.94 | |
| 25 | $ 1.61 | |||
| 100 | $ 1.47 | |||
| 1000 | $ 1.41 | |||
| 5000 | $ 1.40 | |||
| Newark | Each (Supplied on Full Reel) | 100 | $ 1.52 | |
Description
General part information
EMC2112 Series
The EMC2112 is an SMBus, closed-loop, RPM-based fan driver with hardware (HW) thermal shutdown and reset controller. The EMC2112 offers a single High Side fan driver capable of sourcing up to 600mA from a 5V supply.
The EMC2112 utilizes Beta Compensation (an implementation of the BJT or transistor model for thermal diodes) and Resistance Error Correction (REC) to accurately monitor up to three (3) external temperature zones. These features allow great accuracy for CPU substrate thermal diodes on multiple process geometries as well as with discrete diode-connected transistors. Both Beta Compensation and REC can be disabled on the EMC2112 to maintain accuracy when monitoring AMD thermal diodes.
The EMC2112 provides a stand-alone HW thermal shutdown block. The HW thermal shutdown logic can be configured for a few common configurations based on the strapping level of the SHDN\_SEL pin on the PCB. The HW thermal shutdown point can be set in 1°C increments by using a discrete resistor connected to the TRIP\_SET pin.
Documents
Technical documentation and resources