Datasheet

VND5012AK-E Package and PCB thermal data
Doc ID 12285 Rev 8 25/31
Figure 30. PowerSSO-24 thermal impedance junction ambient single pulse (one
channel on)
Equation 1: pulse calculation formula
where δ = t
P
/T
Figure 31. Thermal fitting model of a single channel HSD in PowerSSO-24
(a)
a. 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.
0,1
1
10
100
0,0001 0,001 0,01 0,1 1 10 100 1000
Time ( s)
ZTH (°C/ W)
foot print
2 cm
2
8 cm
2
Z
THδ
R
TH
δ Z
THtp
1 δ–()+⋅=