參數(shù)資料
型號(hào): MC7447RX867LB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 867 MHz, RISC PROCESSOR, CBGA360
封裝: 25 X 25 MM, 3.24 MM HEIGHT, 1.27 MM PITCH, CERAMIC, BGA-360
文件頁(yè)數(shù): 55/72頁(yè)
文件大小: 1598K
代理商: MC7447RX867LB
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 7
Freescale Semiconductor
59
System Design Information
9.8
Thermal Management Information
This section provides thermal management information for the ceramic ball grid array (CBGA) package
for air-cooled applications. Proper thermal control design is primarily dependent on 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 methods—spring clip to holes in the printed-circuit board
or package, and mounting clip and screw assembly (see Figure 27); however, due to the potential large
mass of the heat sink, attachment through the printed-circuit board is suggested. If a spring clip is used,
the spring force should not exceed 10 pounds.
Figure 27. Package Exploded Cross-Sectional View with Several Heat Sink Options
The board designer can choose between several types of heat sinks to place on the MPC7457. There are
several commercially available heat sinks for the MPC7457 provided by the following vendors:
Aavid Thermalloy
603-224-9988
80 Commercial St.
Concord, NH 03301
Internet: www.aavidthermalloy.com
Alpha Novatech
408-749-7601
473 Sapena Ct. #15
Santa Clara, CA 95054
Internet: www.alphanovatech.com
Calgreg Thermal Solutions
401-732-8100
60 Alhambra Road
Warwick, RI 02886
Internet: www.calgregthermalsolutions.com
International Electronic Research Corporation (IERC)
818-842-7277
413 North Moss St.
Burbank, CA 91502
Internet: www.ctscorp.com
Thermal
Heat Sink
CBGA Package
Heat Sink
Clip
Printed-Circuit Board
Interface Material
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