參數(shù)資料
型號： SC5554MVR132
廠商： Freescale Semiconductor
文件頁數(shù)： 56/58頁
文件大?。?/td> 0K
描述： MCU MPC5554 DP ONLY 416-PBGA
標(biāo)準(zhǔn)包裝： 200
系列： MPC55xx Qorivva
核心處理器： e200z6
芯體尺寸： 32-位
速度： 132MHz
連通性： CAN，EBI/EMI，SCI，SPI
外圍設(shè)備： DMA，POR，PWM，WDT
輸入/輸出數(shù)： 256
程序存儲器容量： 2MB（2M x 8）
程序存儲器類型： 閃存
RAM 容量： 64K x 8
電壓 - 電源 (Vcc/Vdd)： 1.35 V ~ 1.65 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 40x12b
振蕩器型： 外部
工作溫度： -40°C ~ 125°C
封裝/外殼： 416-TBGA
包裝： 托盤
Electrical Characteristics
MPC5554 Microcontroller Data Sheet, Rev. 4
Freescale Semiconductor
7
At a known board temperature, the junction temperature is estimated using the following equation:
TJ = TB + (RJB PD)
where:
TJ = junction temperature (oC)
TB = board temperature at the package perimeter (oC/W)
RJB = junction-to-board thermal resistance (oC/W) per JESD51-8
PD = power dissipation in the package (W)
When the heat loss from the package case to the air does not factor into the calculation, an acceptable value
for the junction temperature is predictable. Ensure the application board is similar to the thermal test
condition, with the component soldered to a board with internal planes.
The thermal resistance is expressed as the sum of a junction-to-case thermal resistance plus a
case-to-ambient thermal resistance:
RJA = RJC + RCA
where:
RJA = junction-to-ambient thermal resistance (oC/W)
RJC = junction-to-case thermal resistance (oC/W)
RCA = case-to-ambient thermal resistance (oC/W)
RJC is device related and is not affected by other factors. The thermal environment can be controlled to
change the case-to-ambient thermal resistance, RCA. For example, change the air flow around the device,
add a heat sink, change the mounting arrangement on the printed circuit board, or change the thermal
dissipation on the printed circuit board surrounding the device. This description is most useful for
packages with heat sinks where 90% of the heat flow is through the case to heat sink to ambient.
For most packages, a better model is required.
A more accurate two-resistor thermal model can be constructed from the junction-to-board thermal
resistance and the junction-to-case thermal resistance. The junction-to-case thermal resistance describes
when using a heat sink or where a substantial amount of heat is dissipated from the top of the package. The
junction-to-board thermal resistance describes the thermal performance when most of the heat is
conducted to the printed circuit board. This model can be used to generate simple estimations and for
computational fluid dynamics (CFD) thermal models.
To determine the junction temperature of the device in the application on a prototype board, use the
thermal characterization parameter (
JT) to determine the junction temperature by measuring the
temperature at the top center of the package case using the following equation:
TJ = TT + (JT PD)
where:
TT = thermocouple temperature on top of the package (oC)
JT = thermal characterization parameter (oC/W)
PD = power dissipation in the package (W)
相關(guān)PDF資料
PDF描述
SCC2681AE1A44,529 IC UART DUAL 44-PLCC
SCC2691AC1N24,129 IC UART 24-DIP
SCC2692AC1N28,602 IC DUART 28-DIP
SCC2698BC1A84,512 IC UART OCTAL ENHANCED 84-PLCC
SCC68681C1N40,112 IC DUART 40DIP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC5554MZP112 制造商:Freescale Semiconductor 功能描述:MPC5554, 84M68C, DP ONLY - Trays
SC5554MZP112R2 制造商:Freescale Semiconductor 功能描述:MPC5554, 84M68C, DP ONLY - Tape and Reel
SC5554MZP132 制造商:Freescale Semiconductor 功能描述:32-BIT MPC55XX POWERPC RISC 2MB FLASH 1.8V/2.5V/3.3V/5V 416 - Trays
SC5554MZP132R2 制造商:Freescale Semiconductor 功能描述:MPC5554, 84M68C, DP ONLY - Tape and Reel
SC5565MVZ132 制造商:Freescale Semiconductor 功能描述:2MB FLASH W/ECC, 3 CANS - Trays
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