參數(shù)資料
型號: 440GX
廠商: Applied Micro Circuits Corp.
英文描述: Power PC 440GX Embedded Processor
中文描述: 超出了Power PC嵌入式處理器
文件頁數(shù): 55/93頁
文件大?。?/td> 794K
代理商: 440GX
440GX – Power PC 440GX Embedded Processor
AMCC
59
Revision 1.15 – August 30, 2007
Data Sheet
Package Thermal Specifications
Thermal resistance values for the CBGA and PBGA packages in a convection environment are as follows:
Parameter
Symbol
Package
Airflow
ft/min (m/sec)
Unit
Notes
0 (0)
100 (0.51)
200 (1.02)
Junction-to-case thermal resistance
θ
JC
Ceramic
<0.1
°C/W
1
Plastic
1.2
°C/W
1, 3
Case-to-ambient thermal resistance (w/o heat
sink)
θ
CA
Ceramic
18.9
17.7
16.3
°C/W
2
Plastic
20.8
°C/W
2, 3
Range
Min
Nom
Max
Junction-to-ball (typical)
θ
JB
Ceramic
1.5
2.2
°C/W
4
Plastic
8.2
°C/W
Notes:
1. Case temperature, TC, is measured at top center of case surface with device soldered to circuit board.
2. The case-to-ambient thermal resistance is measured in a JEDEC JESD51-6 standard environment; and may not accurately predict
thermal performance in production equipment environments. The operational case temperature must be maintained.
3. Modeled on standard JEDEC 2S2P card, 50x50mm
4. 1.5 °C/W is the theoretical
θ
JB using an infinite heat sink. The larger number applies to the module mounted on a 1.8 mm thick, 2P card
using 1oz. copper power planes, with an effective heat transfer area of 75mm2.
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