MIC3000BML datasheet(22/68 Pages) MICREL

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MIC3000

Micrel

M9999-101204

October 2004

APCSET

APCSETx

APCLUT T

APCSET

APCSETx

APCLUT max

APCSET

APCSETx

APCLUT min

COMPm

Table min T

Table max

Table min

COMPm

COMP

≤≤

()

(6)

If the measured temperature is greater than the maximum

table value, the highest value in each table is used. If the

measured temperature is less than the minimum, the mini-

mum value is used. Hysteresis is employed to further en-

hance noise immunity and prevent oscillation about a table

threshold. Each table entry spans two degrees C. The table

index will not change unless the new temperature average

results in a table index beyond the midpoint of the next entry

in either direction. There is therefore 2 to 3°C of hysteresis on

temperature compensation changes. The table index will

never oscillate due to quantization noise as the hysteresis is

much larger than ±1¦2 LSB.

Byte Addresses

Function

00h–3Fh

APC Look-up Table

40h–7Fh

IMOD Look-up Table

80h–BFh

IFLT Look-up Table

C0h–FFh

Bias High Alarm Look-up Table

Table 11. Temperature Compensation Look-up Tables,

Serial Address I2CADR + 4h

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