EMC1186 datasheet(36/43 Pages) MICROCHIP

36 / 43 page

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

Datasheet

Revision 1.0 (07-11-13)

SMSC EMC1186

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.

6.13

Filter Control Register 40h

The Filter Configuration Register controls the digital filter on the External Diode 1 channel.

Bits 1-0 - FILTER[1:0] - Control the level of digital filtering that is applied to the External Diode 1

temperature measurement as shown in Table 6.18. See Figure 5.4 and Figure 5.5 for examples on the

filter behavior.

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

Table 6.17 Filter Configuration Register

ADDR.

R/W

DEFAULT

40h

R/W

Filter Control

FILTER[1:0]

00h

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

SETTING

FACTOR

SETTING

FACTOR

SETTING

FACTOR

EMC1186 Datasheet(PDF) 36 Page - Microchip Technology

EMC1186 Datasheet(HTML) 36 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

Datasheet Download

Link URL