TDA7496SSA

10/12

Figure 21. Power derating curve

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

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

a)

Infinite Heatsink

b)

7 °C/ W

c)

10 °C/ W

(c)

(a)

(b)

0

5

10

15

20

0

40

80

120

160

Tamb (°C)

a)

Infinite Heatsink

b)

7 °C/ W

c)

10 °C/ W

(c)

(a)

(b)

0

5

10

15

20

0

40

80

120

160

Tamb (°C)