emc2105 Standard Microsystems Corp., emc2105 Datasheet - Page 9

• Manufacturer Part Number: emc2105
• Description: Emc2105 Rpm-based High Side Fan Controller With Hardware Thermal Shutdown
• Manufacturer: Standard Microsystems Corp.

RPM-Based High Side Fan Controller with Hardware Thermal Shutdown
Datasheet
Chapter 1 Block Diagram
SMSC EMC2105
TRIP_SET*
DN4 / DP3*
DP4 / DN3*
FAN_OUT
VDD_5V
CLK_IN*
TACH1
DP1
DN1
DP2
DN2
External
Internal
Diodes
parallel
Diode
Driver
Tachs
Temp
Temp
diode
Anti-
Fan
Analog
Mux
* denotes multiple pin functions
Figure 1.1 EMC2105 Block Diagram
Configuration
Table / RPM
DATASHEET
11 bit Σ Δ
Lookup
Control
ADC
Shutdown
Thermal
9
Logic
Temp Limit
Temp Registers
Registers
Reference
Protocol
SMBus
GPIO
Slave
Revision 1.74 (05-08-08)
SMCLK
SMDATA
ALERT#
VREF*
GPIO1*