Datasheet

VND5T050AK-E Package and PCB thermal data
Doc ID 022694 Rev. 3 25/32
Figure 28. PowerSSO-24 thermal impedance junction ambient single pulse (one
channel ON)
Figure 29. Thermal fitting model of a double channel HSD in PowerSSO-24
1. The fitting model is a simplified thermal tool and is valid for transient evolutions where the embedded
protections (power limitation or thermal cycling during thermal shutdown) are not triggered
Equation 1: Pulse calculation formula
1
10
100
0.01 0.1 1 10 100 1000
ZTH (°C/W)
Time (s)
Cu=8 cm2
Cu=2 cm2
Cu=foot print
GAPGCFT00634
Z
THδ
R
TH
δ Z
THtp
1 δ–()+⋅=
where
δ t
p
T⁄=