参数资料
型号: MPC8241LZQ166X
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 166 MHz, RISC PROCESSOR, PBGA357
封装: 25 X 25 MM, 1.27 MM PITCH, PLASTIC, BGA-357
文件页数: 43/60页
文件大小: 752K
代理商: MPC8241LZQ166X
48
MPC8241 Integrated Processor Hardware Specifications
MOTOROLA
System Design Information
1.7.8
Thermal Management Information
This section provides thermal management information for the plastic ball grid array (PBGA) package for
air-cooled applications. Depending on the application environment and the operating frequency, a heat sink
may be required to maintain junction temperature within specifications. Proper thermal control design is
primarily dependent on the system-level design: heat sink, airflow, and thermal interface material. To reduce
the die-junction temperature, heat sinks may be attached to the package by several methods: adhesive,
spring clip to holes in the printed-circuit board or package, or mounting clip and screw assembly; see
Figure 29. Package Exploded Cross-Sectional View with Several Heat Sink Options
Figure 30 depicts the die junction-to-ambient thermal resistance for four typical cases:
A heat sink is not attached to the PBGA package and there exists a high board level thermal loading
from adjacent components. (Label used—1s.)
A heat sink is not attached to the PBGA package and there exists a low board level thermal loading
from adjacent components. (Label used—2s2p.)
A large heat sink (cross cut extrusion, 38
× 38 × 16.5 mm) is attached to the PBGA package and
there exists high board level thermal loading from adjacent components. (Label used—1s/sink.)
A large heat sink (cross cut extrusion, 38
× 38 × 16.5 mm) is attached to the PBGA package and
there exists low board level thermal loading from adjacent components. (Label used—2s2p/sink.)
Adhesive or
Thermal Interface
Heat Sink
PBGA Package
Heat Sink
Clip
Printed-Circuit Board
Option
Material
Die
Wire
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