EMC2102-DZK SMSC, EMC2102-DZK Datasheet - Page 27
EMC2102-DZK
Manufacturer Part Number
EMC2102-DZK
Description
Industrial Temperature Sensors RPM Fan Contrllr
Manufacturer
SMSC
Datasheet
1.EMC2102-DZK-TR.pdf
(53 pages)
Specifications of EMC2102-DZK
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
SMSC EMC2102
ThermTrip# Power_OK ThermTrip_SHDN
0
1
1
0
Power Supply
From CPU /
From the
Chipset
(POWER_OK) and configuration information from the fixed states of the SHDN_SEL pins as described
in
In addition, each of the temperature limits can be configured to act as inputs to the Critical / Thermal
Shutdown independent of the hardware shutdown operation.
The analog portion of the Critical/Thermal Shutdown function monitors a specific remote temperature
channel (configured with the SHDN_SEL pin). This measured temperature is then compared with the
TRIP_SET point. This TRIP_SET point is created by the system designer with a simple resistor divider
and is discussed in detail in
Section 5.7.2, "SHDN_SEL
0
0
1
1
3.3V
S/W Set Sensor
H/W Set Sensor
S/W Set Sensor
THERMTRIP#
TRIP_SET
POWER_OK
H/W Critical
Figure 5.4 EMC2102 Critical/Thermal Shutdown Block Diagram
Sensor
1
0
0
0
Temperature
Temperature
Conversion
Conversion
Conversion
and Limit
Shutdown
Registers
Thermal
Voltage
Section 5.7.1,
Pin".
DATASHEET
‘0’ or ‘open’
Critical Shutdown Logic
27
"TRIP_SET".
SYS1 - SYS3
PIN Decode
‘1’
SW_SHDN
Thermal_SHDN
ThermTrip_
SHDN
HW_SHDN
Configuration
Register
Revision 2.02 (05-17-07)
SYS_SHDN#
SHDN_SEL
SMBus Traffic
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