參數資料
型號: MC8641VU1250HC
廠商: Freescale Semiconductor
文件頁數: 20/130頁
文件大?。?/td> 0K
描述: IC MPU SGL E600 CORE 994FCCBGA
標準包裝: 1
系列: MPC86xx
處理器類型: 32-位 MPC86xx PowerPC
速度: 1.25GHz
電壓: 1.05V
安裝類型: 表面貼裝
封裝/外殼: 994-BCBGA,FCCBGA
供應商設備封裝: 994-FCCBGA(33x33)
包裝: 托盤
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
116
Freescale Semiconductor
Thermal
Ideality factor is defined as the deviation from the ideal diode equation:
Another useful equation is:
Where:
Ifw = Forward current
Is = Saturation current
Vd = Voltage at diode
Vf = Voltage forward biased
VH = Diode voltage while IH is flowing
VL = Diode voltage while IL is flowing
IH = Larger diode bias current
IL = Smaller diode bias current
q = Charge of electron (1.6 x 10 –19 C)
n = Ideality factor (normally 1.0)
K = Boltzman’s constant (1.38 x 10–23 Joules/K)
T = Temperature (Kelvins)
The ratio of IH to IL is usually selected to be 10:1. The above simplifies to the following:
Solving for T, the equation becomes:
Ifw = Is e
– 1
qVf
___
nKT
VH – VL = n
ln
KT
__
q
IH
__
IL
VH – VL = 1.986 × 10
–4 × nT
nT =
VH – VL
__________
1.986
× 10–4
相關PDF資料
PDF描述
IDT70T651S8BFG IC SRAM 9MBIT 8NS 208FBGA
IDT70T3799MS133BBGI IC SRAM 9MBIT 133MHZ 324BGA
IDT70T651S12BFI IC SRAM 9MBIT 12NS 208FBGA
MC8641VU1250HB IC MPU SGL E600 CORE 994FCCBGA
IDT70T633S12BFI IC SRAM 9MBIT 12NS 208FBGA
相關代理商/技術參數
參數描述
MC8641VU1250J 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1250K 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1250N 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1333G 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications
MC8641VU1333H 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications