Intel Celeron D User Manual

30 Intel
®
Celeron
®
D Processor in the 775-Land LGA Package Thermal Design Guide
Order #303730
Intel Enabled Thermal Solutions
5.0 Intel Enabled Thermal Solutions
5.1 Thermal Solution Requirements
The thermal performance required for the heatsink is determined by calculating the
case-to-ambient thermal characterization parameter, Ψ
CA
, as explained in Section 3.0, “Thermal
Metrology” on page 18. This is a basic thermal engineering parameter that may be used to evaluate
and compare different thermal solutions in similar boundary conditions. For the Celeron D, an
example of how Ψ
CA
is calculated is shown in Equation 6.
Equation 6. Case-to-Ambient Thermal Characterization Parameter
In this calculation, T
C max
and TDP are taken from the thermal profile specification in the processor
datasheet.
Note: In this calculation, the T
C max
and TDP are constant, while Ψ
CA
will vary according to the local
ambient temperature (T
LA
).
Table 4 shows an example of required thermal characterization parameters for the thermal solution
at various T
LA
s. This table uses the T
C max
and TDP from the processor datasheet. These numbers
are subject to change, and in case of conflict, the specifications in the processor datasheet
supersede the T
C max
and TDP specifications in this document.
Figure 8 further illustrates the required thermal characterization parameter for the Celeron D
Processor in the 775-land LGA package at various operating ambient temperatures. The thermal
solution design must have a Ψ
CA
less than the values shown for the given local ambient
temperature.
W
C
W
CC
WTDP
CTCT
LAC
CA
ooo
oo
354.0
84
387.67
)(
)()(
max
=
−
=
−
=Ψ
Table 4. Thermal Characterization Parameter at Various T
LA
Levels
Intel
®
Celeron
®
D Processor 341 Required Ψ
CA
(°C/W) of Thermal Solution at T
LA
= (°C)
Frequency TDP T
C MAX
44.2 40 35 30
2.93 GHz 84 W 67.7 °C 0.280 0.330 0.389 0.449

Intel Celeron D Specifications

General

Brand	Intel
Model	Celeron D
Category	Computer Hardware
Language	English