參數(shù)資料
型號(hào): PC8245MTPU300D
廠(chǎng)商: ATMEL CORP
元件分類(lèi): 微控制器/微處理器
英文描述: Integrated Processor Family
中文描述: 32-BIT, 300 MHz, RISC PROCESSOR, PBGA352
封裝: 35 X 35 MM, 1.27 MM PITCH, TBGA-352
文件頁(yè)數(shù): 15/61頁(yè)
文件大?。?/td> 429K
代理商: PC8245MTPU300D
15
PC8245
2171D–HIREL–06/04
Thermal Management
Information
This section provides thermal management information for the tape ball grid array
(TBGA) package for air-cooled applications. Depending on the application environment
and the operating frequency, heat sinks may be required to maintain junction tempera-
ture within specifications. Proper thermal control design is primarily dependent upon the
system-level design: the heat sink, airflow, and thermal interface material. To reduce the
die-junction temperature, heat sinks may be attached to the package by several meth-
ods: adhesive, spring clip to holes in the printed-circuit board or package, or mounting
clip and screw assembly; see Figure 4.
Figure 4.
Package Exploded Cross-Sectional View with Several Heat Sink Options
Figure 5 depicts the die junction-to-ambient thermal resistance for four typical cases:
A heat sink is not attached to the TBGA package and there exists a high board-level
thermal loading from adjacent components.
A heat sink is not attached to the TBGA package and there exists a low board-level
thermal loading from adjacent components.
A heat sink (for example, ChipCoolers #HTS255-P) is attached to the TBGA
package and there exists high board-level thermal loading from adjacent
components.
A heat sink (for example, ChipCoolers #HTS255-P) is attached to the TBGA
package and there exists low board-level thermal loading from adjacent
components.
Adhesive
or
Thermal Interface
Material
Die
Heat Sink
TBGA Package
Heat Sink
Clip
Printed-Circuit Board
Option
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