EMC2302 datasheet(41/44 Pages) SMSC

41 / 44 page

Dual RPM-Based PWM Fan Controller

Datasheet

SMSC EMC2302

Revision 1.1 (10-12-09)

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

250

300

350

400

450

500

-50

100

150

Temperature (C)

Ambient Temperature (°C)

Supply Current vs. Supply Voltage

250

300

350

400

450

500

2.95

3.05

3.15

3.25

3.35

3.45

3.55

3.65

Supply Voltage (V)

Tachometer Measurement Accuracy vs. Ambient Temperature

-1

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

-50

100

150

Temperautre (C)

Ambient Temperature (°C)

Tachometer Measurement Accuracy vs. Supply Voltage

-1

-0.8

-0.6

-0.4

-0.2

0.2

0.4

0.6

0.8

2.95

3.05

3.15

3.25

3.35

3.45

3.55

3.65

Supply Voltage (V)

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