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MPC8572ELVTAULD 参数 Datasheet PDF下载

MPC8572ELVTAULD图片预览
型号: MPC8572ELVTAULD
PDF下载: 下载PDF文件 查看货源
内容描述: MPC8572E的PowerQUICC III集成处理器硬件规格 [MPC8572E PowerQUICC III Integrated Processor Hardware Specifications]
分类和应用: PC
文件页数/大小: 140 页 / 1412 K
品牌: FREESCALE [ Freescale ]
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Thermal  
V = Voltage forward biased  
f
V = Diode voltage while I is flowing  
H
H
V = Diode voltage while I is flowing  
L
L
I = Larger diode bias current  
H
I = Smaller diode bias current  
q = Charge of electron (1.6 x 10  
L
–19  
C)  
n = Ideality factor (normally 1.0)  
K = Boltzman’s constant (1.38 x 10 Joules/K)  
T = Temperature (Kelvins)  
–23  
The ratio of I to I is usually selected to be 10:1. The above simplifies to the following:  
H
L
–4  
V – V = 1.986 × 10 × nT  
H
L
Solving for T, the equation becomes:  
V – V  
H
L
__________  
nT =  
–4  
1.986 × 10  
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 4  
Freescale Semiconductor  
124  
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