EVB-EMC2106 SMSC, EVB-EMC2106 Datasheet - Page 2

• Manufacturer Part Number: EVB-EMC2106
• Description: MCU, MPU & DSP Development Tools Eval BRD-EMC2106
• Manufacturer: SMSC

Specifications of EVB-EMC2106

• Processor To Be Evaluated: EMC2106
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

EMC2106 EVB User Manual
1 Overview
The EMC2106 is an SMBus compliant fan controller with up to five (up to 4 external and 1 internal)
temperature channels including hardware set thermal / critical shutdown circuitry. The fan drivers can
be operated using two methods each with two modes. The methods include an RPM based Fan Speed
Control Algorithm and a direct fan 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 EMC2106 also includes a hardware programmable temperature limit and dedicated system
shutdown output for thermal protection of critical circuitry.
A block diagram of this EVB is shown in
Figure 1.1
below.
USB
Connector
C8051F320
USB to SMBus Bridge
SMBus
Temperature
Connector
Monitoring
SMBus
ALERT#
Circuits
32.768kHz
Oscillator
HW Thermal
Shutdown
EMC2106
Config
28 QFN
FAN
Figure 1.1 EMC2106 EVB Block Diagram
Revision 1.1 (08-22-07)
SMSC EMC2106
2