EMC1187 datasheet(43/47 Pages) MICROCHIP

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Triple Channel 1°C Temperature Sensor with Hardware Thermal Shutdown and 1.8V SMBus Communications

Datasheet

SMSC EMC1187

Revision 1.0 (07-11-13)

DATASHEET

Chapter 7 Typical Operating Curves

Tem perature Error vs. Filter Capacitor

(2N3904, TA = 27°C, T

DIODE = 27°C, V DD = 3.3V )

-1.0

-0.8

-0.5

-0.3

0.0

0.3

0.5

0.8

1.0

1000

2000

3000

4000

Filter Capacitor (pF)

Tem perature Error vs. Am bient Tem perature

(2N3904, T

DIODE = 42.5°C, VDD = 3.3V )

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

-40

-25 -10

110 125

Am bient Tem perature (°C)

Tem perature Error vs. External Diode Tem perature

(2N3904, TA = 42.5°C, VDD = 3.3V)

-1.0

-0.8

-0.6

-0.4

-0.2

0.0

0.2

0.4

0.6

0.8

1.0

-40

-25

-10

110 125

External Diode Tem perature (°C)

Temperature Error vs. CPU Temperature

Typical 65nm CPU from major vendor

(TA = 27°C, VDD = 3.3V, BETA = 011, C

FILTER = 470pF)

-1

100

120

CPU Temperature (°C)

Beta Compensation

Disabled

Beta Compensation Enabled

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