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參數(shù)資料
| 型號： | MPC860DE |
| 廠商： | Motorola, Inc. |
| 英文描述： | Family Hardware Specifications |
| 中文描述： | 家庭硬件規(guī)格 |
| 文件頁數(shù)： | 12/76頁 |
| 文件大?。?/td> | 857K |
| 代理商： | MPC860DE |
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12
MPC860 Family Hardware Specifications
MOTOROLA
Estimation Using Simulation
If the board temperature is known, an estimate of the junction temperature in the
environment can be made using the following equation:
T
J
= T
B
+ (R
θ
JB
×
P
D
)
where:
R
θ
JB
= junction-to-board thermal resistance (oC/W)
T
B
= board temperature (oC)
P
D
= power dissipation in package
If the board temperature is known and the heat loss from the package case to the air can be
ignored, acceptable predictions of junction temperature can be made. For this method to
work, the board and board mounting must be similar to the test board used to determine the
junction-to-board thermal resistance, namely a 2s2p (board with a power and a ground
plane) and vias attaching the thermal balls to the ground plane.
7.4
Estimation Using Simulation
When the board temperature is not known, a thermal simulation of the application is
needed. The simple two resistor model can be used with the thermal simulation of the
application [2], or a more accurate and complex model of the package can be used in the
thermal simulation.
7.5
Experimental Determination
To determine the junction temperature of the device in the application after prototypes are
available, the thermal characterization parameter (
Ψ
JT
) can be used to determine the
junction temperature with a measurement of the temperature at the top center of the
package case using the following equation:
T
J
= T
T
+ (
Ψ
JT
×
P
D
)
where:
Ψ
JT
= thermal characterization parameter
T
T
= thermocouple temperature on top of package
P
D
= power dissipation in package
The thermal characterization parameter is measured per JEDEC JESD51-2 specification
using a 40 gauge type T thermocouple epoxied to the top center of the package case. The
thermocouple should be positioned so that the thermocouple junction rests on the package.
A small amount of epoxy is placed over the thermocouple junction and over about 1 mm of
wire extending from the junction. The thermocouple wire is placed flat against the package
case to avoid measurement errors caused by cooling effects of the thermocouple wire.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC860DECVR50D4 | 功能描述:微處理器 - MPU POWER QUICC-NO LEAD RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC860DECVR66D4 | 功能描述:微處理器 - MPU POWER QUICC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC860DECZQ50D4 | 功能描述:微處理器 - MPU POWER QUICC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC860DECZQ66D4 | 功能描述:微處理器 - MPU POWER QUICC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC860DEVR50D4 | 功能描述:微處理器 - MPU POWER QUICC-NO LEAD RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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