Package and PCB thermal data
4
Package and PCB thermal data
4.1
SO-16L thermal data
Figure 22. SO-16L PC board
VN920
Note:
Layout condition of Rth and Zth measurements (PCB FR4 area = 41mm x 48mm, PCB
thickness = 2mm, Cu thickness = 35µm, Copper areas: 0.5cm2, 6cm2).
Figure 23. SO-16L Rthj-amb Vs PCB copper area in open box free air condition
RTH j-amb (°C/W)
70
65
60
55
50
45
40
0
1
2
3
4
5
6
7
PCB Cu heatsink area (cm^2)
20/34