VNQ5E250AJ-E Datasheet, PDF (30/37 Pages) STMicroelectronics – Quad channel high-side driver with analog current sense for automotive applications

Package and PCB thermal data
VNQ5E250AJ-E
Figure 37. PowerSSO-16 thermal impedance junction ambient single pulse (one channel on)
ZTH (°C/W)
100
Cu=8 cm2
Cu=2 cm2
Cu=foot print
10
1
0.0001 0.001
0.01
0.1
1
Time (s)
Equation 1: pulse calculation formula
Z_THδ = R_TH ⋅ δ + Z_THtp(1 – δ)
where δ = t_p ⁄ T
10
100
1000
30/37
Doc ID 17360 Rev 3