RPM-Based Fan Controller with HW Thermal Shutdown
Datasheet
1
2
3
4
12 GND
DN1
PWM
10 TACH
11
DP1
VDD
EMC2103-2
16-QFN
GPIO1
9
SMCLK
Figure 2.2 EMC2103-2 Pin Diagram (16 pin QFN)
Table 2.1 Pin Description for EMC2103
PIN NUMBER
EMC2103-1
PIN NUMBER
EMC2103 -2
PIN NAME
PIN FUNCTION
PIN TYPE
Negative (cathode) analog input for
External Diode 1.
1
1
DN1
AIO
Positive (anode) analog input for
External Diode 1.
2
3
2
3
DP1
VDD
AIO
Power Supply
Power
DI (5V)
GPI1 - General Purpose Input
(default)
N/A
4
GPIO1
GPO1 - Open Drain digital output
GPO1 - Push-pull digital output
OD (5V)
DO
Revision 0.85 (01-29-08)
SMSC EMC2103
DATA1S0HEET