VND5050J-E13TR STMICROELECTRONICS [STMicroelectronics], VND5050J-E13TR Datasheet - Page 21

• Manufacturer Part Number: VND5050J-E13TR
• Description: Double channel high side driver with analog current sense for automotive applications
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

VND5050J-E / VND5050K-E
4.2
PowerSSO-24 thermal data
Figure 34. PowerSSO-24 PC Board
Figure 35. R
Figure 36. PowerSSO-24 Thermal Impedance Junction Ambient Single Pulse
Pulse Calculation Formula
where δ = t
Z
PCB thickness=1.6mm, Cu thickness=70µm (front and back side), Copper areas: from minimum pad lay-out to 8cm
THδ
Layout condition of R
=
R
TH
P
/T
thj-amb
⋅
δ
+
Z
THtp
1000
th
Vs. PCB copper area in open box free air condition
100
0.1
10
and Z
0.0001
ZTH (˚C/W)
1
RTHj_amb(°C/W)
(
55
50
45
40
35
30
1 δ
th
0
–
measurements (PCB: Double layer, Thermal Vias, FR4 area= 77mm x 86mm,
0.001
)
2
0.01
PCB Cu heatsink area (cm^2)
0.1
4
Time (s)
1
6
10
8
100
Package and PCB thermal data
1000
10
Footprint
2 cm
8 cm
2
2
21/28
2
).