參數(shù)資料
型號: TS83102G0BMGS
廠商: ATMEL CORP
元件分類: ADC
英文描述: 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CBGA152
封裝: HERMATIC, CI-CGA-152
文件頁數(shù): 8/52頁
文件大?。?/td> 1548K
代理商: TS83102G0BMGS
16
5360A–BDC–06/05
TS83102G0BMGS
Figure 5-1.
Black Anodized Aluminium Heat Sink Glued on a Copper Base Screwed on Board (all dimensions in mm)
Note:
The cooling system efficiency can be monitored using the temperature sensing diodes, integrated
5.2
Thermal Dissipation by Conduction Only
When the external heat sink cannot be used, the relevant thermal resistance is the thermal
resistance from the junction to the bottom of the columns: RTH
J-Bottom-of-columns.
The thermal path, in this case, is the junction, then the silicon, glue, CuW heat spreader, pack-
age Al2O3, and the columns (Sn10Pb90).
The Finite Element Method (FEM) with the thermal simulator leads to
RTH
J-bottom-of-columns = 7.4°C/W. This value assumes pure conduction from the junction to the bot-
tom of the columns (this is the worst case, no radiation and no convection is applied). With such
an assumption, RTH
J- Bottom-of-columns is user-independent.
To complete the thermal analysis, you must add the thermal resistance from the top of the board
(on which the device is soldered) to the ambient resistance, whose values are user-dependent
(the type of board, thermal, routing, area covered by copper in each board layer, thickness, air-
flow or cold plate are all parameters to consider).
In the case of the CI-CGA 152 package, the thermal resistance from the junction to the top of the
package (via the CuW heat spreader covered by AI203) is
RTH
J-top-of-package = 4.8°C/W.
16 x 50
11.5 x 52
18.50
6.5
Board
0.3
2
50 x 50
50 x 52
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