TDA7496SSA Datasheet, PDF (10/12 Pages) STMicroelectronics – 5W+5W AMPLIFIER

TDA7496SSA
Figure 21. Power derating curve
20
15
(a)
10
(b)
5
(c)
a) Infinite Heatsink
b) 7 °C/ W
c) 10 °C/ W
0
0
40
80
120
160
Tamb (°C)
Clipwatt Assembling Suggestions
The suggested mounting method of Clipwatt on external heat sink, requires the use of a clip placed as much as
possible in the plastic body center, as indicated in the example of figure 22.
A thermal grease can be used in order to reduce the additional thermal resistance of the contact between pack-
age and heatsink.
A pressing force of 7 - 10 Kg gives a good contact and the clip must be designed in order to avoid a maximum
contact pressure of 15 Kg/mm² between it and the plastic body case.
As example, if a 15Kg force is applied by the clip on the package , the clip must have a contact area of 1mm2
at least.
Figure 22. Example of right placement of the clip
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