EMC1187 datasheet(38/47 Pages) MICROCHIP

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

Datasheet

Revision 1.0 (07-11-13)

SMSC EMC1187

DATASHEET

6.15

External Diode Ideality Factor Register 27h

This register stores the ideality factors that are applied to the external diode. Table 6.19 defines each

setting and the corresponding ideality factor. Beta Compensation and Resistance Error Correction

automatically correct for most diode ideality errors; therefore, it is not recommended that these settings

be updated without consulting SMSC.

0.25

0.33

0.43

1.00

2.33

Disabled

8h - Fh

Auto-detection

Table 6.18 Ideality Configuration Registers

ADDR.

R/W

DEFAULT

27h

R/W

External

Diode

Ideality

Factor

IDEALITY[5:0]

12h

28h

R/W

External

Diode 2

Ideality

Factor

IDEALITY2[5:0]

12h

31h

R/W

External

Diode 3

Ideality

Factor

IDEALITY3[5:0]

12h

Table 6.19 Ideality Factor Look-Up Table (Diode Model)

SETTING

FACTOR

SETTING

FACTOR

SETTING

FACTOR

08h

0.9949

18h

1.0159

28h

1.0371

09h

0.9962

19h

1.0172

29h

1.0384

0Ah

0.9975

1Ah

1.0185

2Ah

1.0397

Table 6.17 CPU Beta Values (continued)

HEX

ENABLE2

BETA2[2:0]

MINIMUM BETA

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