Multiple RPM-Based PWM Fan Controller for Five Fans
Datasheet
Chapter 6 Typical Operating Curves
The following Typical Operating Curves are included.
Supply Current vs. Temperature
Supply Current vs. Supply Voltage
Fan TACH Accuracy vs. Temperature
Fan TACH Accuracy vs. Supply Voltage
PWM output frequency vs. Supply Voltage
PWM output frequency vs. Temperature
FSC Operation
Supply Current vs. Ambient Temperature
Supply Current vs. Supply Voltage
750
700
650
600
550
500
750
700
650
600
550
500
-50
0
50
100
150
2.95
3.05
3.15
3.25
3.35
3.45
3.55
3.65
Ambient Temperature (°C)
Temperature (C)
Supply Voltage (V)
Supply Voltage (V)
Tachometer Measurement Accuracy vs. Supply Voltage
Tachometer Measurement Accuracy vs. Ambient Temperature
1
0.8
0.6
0.4
0.2
0
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
-0.2
-0.4
-0.6
-0.8
-1
2.95
3.05
3.15
3.25
3.35
3.45
3.55
3.65
-50
0
50
100
150
Supply Voltage (V)
AmbienTt Teemmppeerraatuutrree(°(CC))
SMSC EMC2305
Revision 1.1 (10-12-09)
DATA5S1HEET
SMSC [ SMSC CORPORATION ]
