VN5770AK-E
Package and thermal data
Figure 40. SO-28 HSD thermal impedance junction ambient single pulse
ZTH
100
(˚C/W)
Footprint
2
1 cm
2
2 cm
2
6 cm
Footprint
2
1 cm
2
10
2 cm
HSD
2
6 cm
HsLsD
1
0.1
0.001
0.01
0.1
1
10
100
1000
time (sec)
Figure 41. SO-28 LSD thermal impedance junction ambient single pulse
ZTH
(˚C/W)
Footprint
2
100
1 cm
2
2 cm
2
6 cm
Footprint
10
2
1 cm
LSD
2
2 cm
2
6 cm
LsLsD
0.1
0.001
0.01
0.1
1
10
100
1000
time (sec)
Pulse Calculation Formula
ZTHδ = RTH ⋅ δ + ZTHtp(1 – δ)
δ = tp ⁄ T
where
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