RPM-Based Fan Controller with Multiple Temperature Zones & Hardware Thermal Shutdown
Datasheet
Chapter 3 Pin Layout
GND
12
11
10
9
DN1 1
2
PWM
DP1
VDD
EMC2113
16-pin QFN
3
4
TACH
SMCLK
PWM_IN
Figure 3.1 EMC2113-1 Pin Diagram (16-Pin QFN)
Table 3.1 Pin Description for EMC2113-1
PIN NUMBER
PIN NAME
PIN FUNCTION
PIN TYPE
Negative (cathode) analog input for External
Diode 1
1
DN1
AIO
Positive (anode) analog input for External
Diode 1
2
DP1
AIO
3
4
5
VDD
Power Supply
Power
DI (5V)
AIO
PWM_IN
ADDR_SEL
PWM input signal from host
Address Select Input
Active low SMBus slave interrupt - requires
external pull-up resistor.
6
7
ALERT
OD (5V)
OD (5V)
Active low Critical/Thermal Shutdown output -
requires external pull-up resistor
SYS_SHDN
SMSC EMC2113
11
Revision 1.2 (10-08-09)
DATASHEET
SMSC [ SMSC CORPORATION ]
