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參數(shù)資料
| 型號(hào)： | MPC7410VS400LE |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 400 MHz, RISC PROCESSOR, CBGA360 |
| 封裝： | 25 X 25 MM, 2.20 MM HEIGHT, 1.27 MM PITCH, HCTE, LGA-360 |
| 文件頁數(shù)： | 41/56頁 |
| 文件大?。?/td> | 864K |
| 代理商： | MPC7410VS400LE |
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MPC7410 RISC Microprocessor Hardware Specifications, Rev. 6.1
46
Freescale Semiconductor
System Design Information
Thermagon Inc.
888-246-9050
4707 Detroit Ave.
Cleveland, OH 44102
Internet: www.thermagon.com
8.8.3 Heat Sink Selection Example
For preliminary heat sink sizing, the die-junction temperature can be expressed as follows:
Tj = Ta + Tr + (θjc + θint + θsa) × Pd
where:
Tj is the die-junction temperature
Ta is the inlet cabinet ambient temperature
Tr is the air temperature rise within the computer cabinet
θjc is the junction-to-case thermal resistance
θint is the adhesive or interface material thermal resistance
θ
sa is the heat sink base-to-ambient thermal resistance
Pd is the power dissipated by the device
During operation the die-junction temperatures (Tj) should be maintained less than the value specified in Table 3.
The temperature of the air cooling the component greatly depends upon the ambient inlet air temperature and the air
temperature rise within the electronic cabinet. An electronic cabinet inlet-air temperature (Ta) may range from 30°
to 40°C. The air temperature rise within a cabinet (Tr) may be in the range of 5° to 10°C. The thermal resistance of
the thermal interface material (
θint) is typically about 1°C/W. Assuming a Ta of 30°C, a Tr of 5°C, a CBGA package
θ
jc = 0.03, and a power consumption (Pd) of 5.0 W, the following expression for Tj is obtained:
Die-junction temperature:
Tj = 30°C + 5°C + (0.03°C/W + 1.0°C/W + θsa) × 5.0 W
For a Thermalloy heat sink #2328B, the heat sink-to-ambient thermal resistance (
θ
sa) versus airflow velocity is
shown in Figure 30.
Assuming an air velocity of 0.5 m/s, we have an effective Rsa of 7°C/W, thus
Tj = 30°C + 5°C + (0.03°C/W + 1.0°C/W + 7°C/W) × 5.0 W,
resulting in a die-junction temperature of approximately 75°C which is well within the maximum operating
temperature of the component.
Other heat sinks offered by Aavid Thermalloy, Alpha Novatech, The Bergquist Company, IERC, and Wakefield
Engineering offer different heat sink-to-ambient thermal resistances, and may or may not need airflow.
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| MPC7410VS400NE | 功能描述:微處理器 - MPU REV 1.4 105C LGA 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(shí)鐘頻率:536 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC7410VS450LE | 功能描述:微處理器 - MPU NITRO R1.4 105C PB FREE 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(shí)鐘頻率:536 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC7410VS450NE | 功能描述:微處理器 - MPU REV 1.4 105C LGA 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(shí)鐘頻率:536 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC7410VS500LE | 功能描述:微處理器 - MPU NITRO R1.4 105C PB FREE 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(shí)鐘頻率:536 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC7441 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:RISC Microprocessor Hardware Specifications |
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