EMC1182 datasheet(36/48 Pages) MICROCHIP

36 / 48 page

Dual Channel 1°C Temperature Sensor with Beta Compensation and 1.8V SMBus Communications

Datasheet

Revision 1.0 (07-11-13)

SMSC EMC1182

DATASHEET

APPLICATION NOTE: When measuring a 65nm Intel CPU, the Ideality Setting should be the default 12h. When

measuring a 45nm Intel CPU, the Ideality Setting should be 15h.

Bit 1 - E1HIGH - This bit is set when the External Diode 1 channel exceeds its programmed high limit.

Bit 0 - IHIGH - This bit is set when the Internal Diode channel exceeds its programmed high limit.

Bit 1 - ELOW - This bit is set when the External Diode channel drops below its programmed low limit.

Bit 0 - ILOW - This bit is set when the Internal Diode channel drops below its programmed low limit.

Bit 1 - ETHERM - This bit is set when the External Diode channel exceeds its programmed Therm

Limit. When set, this bit will assert the THERM pin.

Bit 0- ITHERM - This bit is set when the Internal Diode channel exceeds its programmed Therm Limit.

When set, this bit will assert the THERM pin.

Table 6.16 Substrate Diode Ideality Factor Look-Up Table (BJT Model)

SETTING

FACTOR

SETTING

FACTOR

SETTING

FACTOR

08h

0.9869

18h

1.0079

28h

1.0291

09h

0.9882

19h

1.0092

29h

1.0304

0Ah

0.9895

1Ah

1.0105

2Ah

1.0317

0Bh

0.9908

1Bh

1.0120

2Bh

1.0330

0Ch

0.9921

1Ch

1.0132

2Ch

1.0343

0Dh

0.9934

1Dh

1.0146

2Dh

1.0356

0Eh

0.9947

1Eh

1.0159

2Eh

1.0369

0Fh

0.9960

1Fh

1.0173

2Fh

1.0382

10h

0.9973

20h

1.0187

30h

1.0395

11h

0.9986

21h

1.0200

31h

1.0408

12h

1.0000

22h

1.0213

32h

1.0421

13h

1.0013

23h

1.0226

33h

1.0434

14h

1.0026

24h

1.0239

34h

1.0447

15h

1.0039

25h

1.0252

35h

1.0460

16h

1.0053

26h

1.0265

36h

1.0473

17h

1.0066

27h

1.0278

37h

1.0486

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