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Intel® Reference Thermal Solution—Intel
Dual-Core E2160 Processor
5.0
Intel® Reference Thermal Solution
5.1
Thermal Solution Requirements
The thermal performance required for the heatsink is determined by calculating the
case-to-ambient thermal characterization parameter, Ψ
This is a basic thermal engineering parameter that may be used to evaluate and
compare different thermal solutions in similar boundary conditions. An example of how
Ψ
is calculated for the Intel® Core™ 2 Duo E6400, E4300, and Intel® Pentium®
CA
Dual-Core E2160 Processors for Embedded Applications is shown in
Equation 3. Case-to-Ambient Thermal Characterization Parameter
In this calculation, T
®
the Intel
Processor E6000 Sequence Datasheet. It is important to note that in this calculation,
the T
C-MAX
temperature (TLA).
Table 1 shows an example of required thermal characterization parameters for the
thermal solution at various TLAs. This table uses the TC max and TDP from the
datasheets. These numbers are subject to change, and in case of conflict, the
specifications in the processor datasheet supersede the T
in this document.
Table 3.
Thermal Characterization Parameter at various T
Intel® Core™2 Duo E6400,
E4300, and Intel® Pentium®
Dual-Core E2160 Processors for
Embedded Applications in the
775-Land Package
TDP (W)
65
Figure 10
Intel® Core™ 2 Duo E6400, E4300, and Intel® Pentium® Dual-Core E2160 Processors
for Embedded Applications at various operating ambient temperatures. The thermal
solution design must have a Ψ
temperature.
October 2007
Order Number: 315279 - 003US
®
TM
Core
2 Duo E6400, E4300, and Intel
−
o
T
(
C
)
Ψ
=
C
max
CA
TDP
(
W
and TDP are taken from the thermal profile specification in
C-MAX
Core™2 Extreme Processor X6800 and Intel
and TDP are constant, while Ψ
Required Ψ
TC Max (°C)
44.1
61.4
0.266
further illustrates the required thermal characterization parameter for the
less than the values shown for the given local ambient
CA
®
TM
Intel
Core
2 Duo E6400, E4300, and Intel
®
CA
−
o
o
T
(
C
)
61
4 .
C
38
=
LA
)
65
W
®
will vary according to the local ambient
CA
LA
CA (°C/W) of Thermal Solution at TLA = (°C)
40
35
0.329
0.406
®
®
Pentium
, as explained in
Section
Equation
3.
o
o
C
C
=
. 0
360
W
Core™2 Duo Desktop
and TDP specifications
C-MAX
's
30
0.483
®
Pentium
Dual-Core E2160 Processor
3.1.
TDG
33
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