Datasheet
LM95233
www.ti.com
SNIS145E –AUGUST 2006–REVISED MARCH 2013
Operating Ratings
(1)(2)(3)
Operating Temperature Range −40°C to +140°C
Electrical Characteristics Temperature Range T
MIN
≤ T
A
≤ T
MAX
LM95233CISD −40°C ≤ T
A
≤ +125°C
Supply Voltage Range (V
DD
) +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
Unless otherwise noted, these specifications apply for V
DD
= +3.0Vdc to 3.6Vdc. Boldface limits apply for T
A
= T
J
= T
MIN
≤
T
A
≤ T
MAX
; all other limits T
A
= T
J
= +25°C, unless otherwise noted.
Units
Parameter Conditions Typical
(1)
Limits
(2)
(Limit)
Temperature Error Using Local Diode T
A
= -40°C to +125°C,
(3)
±1 ±2 °C (max)
Temperature Error Using Remote Diode
(4)
T
A
= +25°C to +85°C 65 nm Intel ±0.875 °C (max)
T
D
= +60°C to +100°C Processor
T
A
= +25°C to +85°C MMBT3904 ±1.1 °C (max)
T
D
= +60°C to +100°C Transistor
T
A
= +25°C to +85°C 65 nm Intel ±1.0 °C (max)
T
D
= 40°C to +125°C Processor
T
A
= +25°C to +85°C MMBT3904 ±1.3 °C (max)
T
D
= −40°C to +125°C Transistor
T
A
= −40°C to +85°C 65 nm Intel ±3.2 °C (max)
T
D
= −40°C to +125°C Processor
T
A
= −40°C to +85°C MMBT3904 ±3.0 °C (max)
T
D
= −40°C to +125°C Transistor
T
A
= −40°C to +85°C MMBT3904 ±3.3 °C (max)
T
D
= 125°C to +140°C 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)
Fastest Setting
(5)
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) Typicals are at T
A
= 25°C and represent most likely parametric norm.
(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).
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