- 您现在的位置：买卖IC网 > PDF目录80532 > MPC5200VR466BR2 (FREESCALE SEMICONDUCTOR INC) 466 MHz, MICROPROCESSOR, PBGA272 PDF资料下载
参数资料
| 型号： | MPC5200VR466BR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 466 MHz, MICROPROCESSOR, PBGA272 |
| 封装： | 27 X 27 MM, 1.27 MM PITCH, ROHS COMPLIANT, PLASTIC, BGA-272 |
| 文件页数： | 4/80页 |
| 文件大小： | 788K |
| 代理商： | MPC5200VR466BR2 |
第1页第2页第3页当前第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页
MPC5200B Data Sheet, Rev. 0.6
Electrical and Thermal Characteristics
Freescale Semiconductor
12
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:
RθJA =RθJC+RθCA
Eqn. 4
where:
RθJA = junction to ambient thermal resistance (C/W)
RθJC = junction to case thermal resistance (C/W)
RθCA = case to ambient thermal resistance (C/W)
RθJC is device related and cannot be influenced by the user. The user controls the thermal environment to
change the case to ambient thermal resistance, RθCA. For instance, the user can change the air flow around
the device, add a heat sink, change the mounting arrangement on printed circuit board, or change the
thermal dissipation on the printed circuit board surrounding the device. This description is most useful for
ceramic packages with heat sinks where some 90% of the heat flow is through the case to the heat sink to
ambient. For most packages, a better model is required.
A more accurate thermal model can be constructed from the junction to board thermal resistance and the
junction to case thermal resistance. The junction to case covers the situation where a heat sink will be used
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 for either hand estimations or for a computational fluid dynamics
(CFD) thermal model.
To determine the junction temperature of the device in the application after prototypes are available, the
Thermal Characterization Parameter (
ΨJT) 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:
TJ =TT+(ΨJT × PD)
Eqn. 5
where:
TT = thermocouple temperature on top of package (C)
ΨJT = thermal characterization parameter (C/W)
PD = power dissipation in package (W)
The thermal characterization parameter is measured per 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 approximately one 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.
3.2
Oscillator and PLL Electrical Characteristics
The MPC5200B System requires a system-level clock input SYS_XTAL. This clock input may be driven
directly from an external oscillator or with a crystal using the internal oscillator.
There is a separate oscillator for the independent Real-Time Clock (RTC) system.
相关PDF资料 |
PDF描述 |
|---|---|
| MPC8250ACVVIHBX | 32-BIT, 200 MHz, RISC PROCESSOR, PBGA480 |
| MC9S12XDT256MFU | 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP80 |
| MAC7131MVF50R2 | 32-BIT, FLASH, 50 MHz, MICROCONTROLLER, PBGA208 |
| MC68L11E0FNE2 | 8-BIT, 2 MHz, MICROCONTROLLER, PQCC52 |
| MC908QY2MDWR2 | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC52100J | 功能描述:厚膜电阻器 - 透孔 RoHS:否 制造商:Caddock 电阻:27 kOhms 容差:1 % 功率额定值:8 W 温度系数:50 PPM / C 系列:MS 端接类型:Axial 电压额定值:2 kV 工作温度范围:- 15 C to + 275 C 尺寸:8.89 mm Dia. x 23.11 mm L 封装:Bulk |
| MPC52100J | 制造商:TE Connectivity 功能描述:RESISTOR 5W 10R |
| MPC52100J | 制造商:TE Connectivity 功能描述:RESISTOR THICK FILM 10OHM 5W 5% 制造商:TE Connectivity 功能描述:RESISTOR, THICK FILM, 10 OHM, 5W, 5% |
| MPC52101J | 功能描述:厚膜电阻器 - 透孔 MPC5 100R 5% RoHS:否 制造商:Caddock 电阻:27 kOhms 容差:1 % 功率额定值:8 W 温度系数:50 PPM / C 系列:MS 端接类型:Axial 电压额定值:2 kV 工作温度范围:- 15 C to + 275 C 尺寸:8.89 mm Dia. x 23.11 mm L 封装:Bulk |
| MPC52101J | 制造商:TE Connectivity 功能描述:RESISTOR 5W 100R |
发布紧急采购，3分钟左右您将得到回复。