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253668 参数 Datasheet PDF下载

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型号: 253668
PDF下载: 下载PDF文件 查看货源
内容描述: 双核英特尔​​®至强®处理器 [Dual-Core Intel Xeon Processor]
分类和应用:
文件页数/大小: 104 页 / 3687 K
品牌: INTEL [ INTEL ]
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Thermal Specifications  
Table 6-10. Thermal Diode Interface  
Land Name  
Land Number  
Description  
THERMDA  
AL1  
AK1  
AJ7  
diode anode  
diode cathode  
diode anode  
diode cathode  
THERMDC  
THERMDA2  
THERMDC2  
AH7  
.
Table 6-11. Thermal Diode Parameters using Transistor Model  
Symbol  
Parameter  
Min  
Typ  
Max  
Unit  
Notes  
I
Forward Bias Current  
Emitter Current  
Transistor Ideality  
-
5
-
-
200  
200  
µA  
µA  
-
1, 2  
FW  
I
5
E
n
0.997  
0.391  
2.79  
1.001  
-
1.005  
0.760  
6.24  
3, 4, 5  
3, 4  
Q
Beta  
-
R
Series Resistance  
4.52  
3, 6  
T
Ω
Notes:  
1.  
2.  
3.  
4.  
5.  
Intel does not support or recommend operation of the thermal diode under reverse bias.  
Same as I in the diode model in Table 6-9.  
Characterized across a temperature range of 50-80°C.  
Not 100% tested. Specified by design characterization.  
The ideality factor, n , represents the deviation from ideal transistor model behavior as exemplified by the  
equation for the collector current: I = I * (e  
FW  
Q
qVBE/n kT  
- 1)  
BE  
C
S
Q
Where I = saturation current, q = electronic charge, V = voltage across the transistor based emitter  
S
junction (same nodes as V ), k = Boltzmann Constant, and T = absolute temperature (Kelvin).  
The series resistance, R provided in Table 6-9 can be used for more accurate readings as needed.  
D
6.  
T
Table 6-12. Parameters for Tdiode Correction Factor  
Symbol  
Parameter  
Typ  
Unit  
Notes  
n
Diode Ideality used to calculate  
Tdiode_Offset  
1.008  
1
trim  
Tdiode_Base  
0
°C  
1
Notes:  
1.  
®
®
See the Dual-Core Intel Xeon Processor 5000 Series Thermal/Mechanical Design Guidelines for more  
information on how to use the Tdiode_Offset, Tdiode_Base and n  
parameters for fan speed control.  
trim  
§
Dual-Core Intel® Xeon® Processor 5000 Series Datasheet  
81  
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