LM95233

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SNIS145E – AUGUST 2006 – REVISED MARCH 2013

Operating Ratings

(1) (2) (3)

Operating Temperature Range

−40°C to +140°C

Electrical Characteristics Temperature Range

LM95233CISD

+3.0V to +3.6V

(1)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not

apply when operating the device beyond its rated operating conditions.

(2)

Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not

apply when operating the device beyond its rated operating conditions.

(3)

Thermal resistance junction-to-ambient when attached to a 4 layer printed circuit board per JEDEC standard JESD51-7

(a) 14-lead WSON = 90°C/W (no thermal vias, no airflow)

(b) 14-lead WSON = 63°C/W (1 thermal via, no airflow)

(c) 14-lead WSON = 43°C/W(6 thermal vias, no airflow)

(d) 14-lead WSON = 31°C/W (6 thermal vias, 900 ln. ft. / min. airflow)

Note, all quoted values include +15% error factor from nominal value.

Temperature-to-Digital Converter Electrical Characteristics

Units

Parameter

Conditions

(Limit)

Temperature Error Using Local Diode

(3)

±1

±2

°C (max)

65 nm Intel

±0.875

°C (max)

Processor

MMBT3904

±1.1

°C (max)

Transistor

65 nm Intel

±1.0

°C (max)

Processor

MMBT3904

±1.3

°C (max)

Transistor

65 nm Intel

±3.2

°C (max)

Processor

MMBT3904

±3.0

°C (max)

Transistor

MMBT3904

±3.3

°C (max)

Transistor

Local Diode Measurement Resolution

11

Bits

0.125

°C

Remote Diode Measurement Resolution

Digital Filter Off

11

Bits

0.125

°C

Digital Filter On (Remote Diodes 1 and 2

13

Bits

only)

0.03125

°C

Conversion Time of All Temperatures at the

All Channels are Enabled in Default State

1100

1210

ms (max)

1 External Channel TruTherm Active

34

37

ms (max)

1 External Channel TruTherm Inactive

31

34

ms (max)

Local only

30

33

ms (max)

(1)

(2)

Limits are specified to AOQL (Average Outgoing Quality Level).

(3)

Local temperature accuracy does not include the effects of self-heating. The rise in temperature due to self-heating is the product of the

internal power dissipation of the LM95233 and the thermal resistance. See Note 2 of the Operating Ratings Table above for the thermal

resistance to be used in the self-heating calculation.

(4)

The accuracy of the LM95233CISD is ensured when using a typical thermal diode of an Intel processor on a 65 nm process or an

MMBT3904 diode-connected transistor, as selected in the Remote Diode Model Select register. See Typical Performance

Characteristics for performance with Intel processor on a 90 nm process. For further information on other thermal diodes see DIODE

NON-IDEALITY

(5)

This specification is provided only to indicate how often temperature data is updated. The LM95233 can be read at any time without

regard to conversion state (and will yield last conversion result).

Copyright © 2006–2013, Texas Instruments Incorporated

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