An estimation of the chi" />
參數(shù)資料
型號(hào): SPC5200CBV400BR2
廠商: Freescale Semiconductor
文件頁數(shù): 72/72頁
文件大?。?/td> 0K
描述: IC MPU 32BIT 400MHZ 272-PBGA
標(biāo)準(zhǔn)包裝: 500
系列: MPC52xx
處理器類型: 32-位 MPC52xx PowerPC
速度: 400MHz
電壓: 1.5V
安裝類型: 表面貼裝
封裝/外殼: 272-BBGA
供應(yīng)商設(shè)備封裝: 272-PBGA(27x27)
包裝: 帶卷 (TR)
MPC5200B Data Sheet, Rev. 4
Freescale Semiconductor
9
1.1.6
Thermal Characteristics
1.1.6.1
Heat Dissipation
An estimation of the chip-junction temperature, TJ, can be obtained from the following equation:
TJ =TA+(RθJA × PD)
Eqn. 3
where:
TA = ambient temperature for the package (C)
RθJA = junction to ambient thermal resistance (C/W)
PD = power dissipation in package (W)
The junction to ambient thermal resistance is an industry standard value, which provides a quick and easy estimation of thermal
performance. Unfortunately, there are two values in common usage: the value determined on a single layer board, and the value
obtained on a board with two planes. For packages such as the PBGA, these values can be different by a factor of two. Which
value is correct depends on the power dissipated by other components on the board. The value obtained on a single layer board
is appropriate for the tightly packed printed circuit board. The value obtained on the board with the internal planes is usually
appropriate if the board has low power dissipation and the components are well separated.
Historically, the thermal resistance has frequently been expressed as the sum of a junction to case thermal resistance and a case
to ambient thermal resistance:
Table 7. Thermal Resistance Data
Rating
Board Layers
Sym
Value
Unit
Notes
SpecID
Junction to Ambient
Natural Convection
Single layer board
(1s)
RθJA
30
°C/W
(1),(2)
1 Junction temperature is a function of die size, on-chip power dissipation, package thermal resistance, mounting site
(board) temperature, ambient temperature, air flow, power dissipation of other components on the board, and board
thermal resistance.
2 Per SEMI G38-87 and JEDEC JESD51-2 with the single layer board horizontal.
D6.1
Junction to Ambient
Natural Convection
Four layer board (2s2p)
RθJMA
22
°C/W
(1),(3)
3 Per JEDEC JESD51-6 with the board horizontal.
D6.2
Junction to Ambient (@200
ft/min)
Single layer board
(1s)
RθJMA
24
°C/W
D6.3
Junction to Ambient (@200
ft/min)
Four layer board
(2s2p)
RθJMA
19
°C/W
D6.4
Junction to Board
RθJB
14
°C/W
(4)
4 Thermal resistance between the die and the printed circuit board per JEDEC JESD51-8. Board temperature is
measured on the top surface of the board near the package.
D6.5
Junction to Case
RθJC
8°C/W
(5)
5 Thermal resistance between the die and the case top surface as measured by the cold plate method (MIL
SPEC-883 Method 1012.1).
D6.6
Junction to Package Top
Natural Convection
Ψ
JT
2°C/W
(6)
6 Thermal characterization parameter indicating the temperature difference between package top and the junction
temperature per JEDEC JESD51-2. When Greek letters are not available, the thermal characterization parameter
is written as Psi-JT.
D6.7
相關(guān)PDF資料
PDF描述
MPC857DSLZQ50B IC MPU PWRQUICC 50MHZ 357-PBGA
FSM44DSEH CONN EDGECARD 88POS .156 EYELET
CP80C88Z IC PWM CONTROLLER
CP80C88-2Z IC PWM CONTROLLER
AYF331335 CONN FPC 13POS .3MM SMD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SPC5200CBV400R2 功能描述:IC MPU 32BIT 400MHZ 272-PBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC52xx 標(biāo)準(zhǔn)包裝:60 系列:SCC 處理器類型:Z380 特點(diǎn):全靜電 Z380 CPU 速度:20MHz 電壓:5V 安裝類型:表面貼裝 封裝/外殼:144-LQFP 供應(yīng)商設(shè)備封裝:144-LQFP 包裝:托盤
SPC5200CVR400 功能描述:IC MPU 32BIT 400MHZ 272-PBGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC52xx 標(biāo)準(zhǔn)包裝:40 系列:MPC83xx 處理器類型:32-位 MPC83xx PowerQUICC II Pro 特點(diǎn):- 速度:267MHz 電壓:0.95 V ~ 1.05 V 安裝類型:表面貼裝 封裝/外殼:516-BBGA 裸露焊盤 供應(yīng)商設(shè)備封裝:516-PBGAPGE(27x27) 包裝:托盤
SPC5200CVR400B 功能描述:微處理器 - MPU HABANERO AUTO PBFREE 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
SPC5200CVR400BR2 功能描述:微處理器 - MPU HABANERO AUTO 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
SPC5200CVR400R2 功能描述:IC MPU 32BIT 400MHZ 272-PBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC52xx 標(biāo)準(zhǔn)包裝:2 系列:MPC8xx 處理器類型:32-位 MPC8xx PowerQUICC 特點(diǎn):- 速度:133MHz 電壓:3.3V 安裝類型:表面貼裝 封裝/外殼:357-BBGA 供應(yīng)商設(shè)備封裝:357-PBGA(25x25) 包裝:托盤