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450 데이터시트(PDF) 83 Page - Intel Corporation

부품명 450
상세설명  Supporting the Intel Celeron processor
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제조업체  INTEL [Intel Corporation]
홈페이지  http://www.intel.com
Logo INTEL - Intel Corporation

450 데이터시트(HTML) 83 Page - Intel Corporation

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Datasheet
83
Thermal Specifications and Design Considerations
NOTES:
1.
Intel does not support or recommend operation of the thermal diode under reverse bias.
2.
Same as IFW in Table 28.
3.
Preliminary data. Will be characterized across a temperature range of 50–80 °C.
4.
Not 100% tested. Specified by design characterization.
5.
The ideality factor, nQ, represents the deviation from ideal transistor model behavior as
exemplified by the equation for the collector current:
IC = IS * (e
qVBE/nQkT –1)
Where IS = saturation current, q = electronic charge, VBE = voltage across the transistor
base emitter junction (same nodes as VD), k = Boltzmann Constant, and T = absolute
temperature (Kelvin).
6.
The series resistance, RT, provided in the Diode Model Table (Table 28) can be used for
more accurate readings as needed.
The Intel® Celeron® processor 400 Series does not support the diode correction offset
that exists on other Intel processors.
Table 29.
Thermal “Diode” Parameters using Transistor Model
Symbol
Parameter
Min
Typ
Max
Unit
Notes
IFW
Forward Bias Current
5
—
200
µA
1, 2
IE
Emitter Current
5
—
200
nQ
Transistor Ideality
0.997
1.001
1.005
-
3, 4, 5
Beta
0.391
—
0.760
3, 4
RT
Series Resistance
2.79
4.52
6.24
Ω
3, 6
Table 30.
Thermal Diode Interface
Signal Name
Land Number
Signal
Description
THERMDA
AL1
diode anode
THERMDC
AK1
diode cathode



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