VND5012AK STMicroelectronics, VND5012AK Datasheet - Page 17
VND5012AK
Manufacturer Part Number
VND5012AK
Description
Double Channel High Side Driver With Analog Current Sense For Automotive Applications
Manufacturer
STMicroelectronics
Datasheet
1.VND5012AK.pdf
(22 pages)
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4
4.1
Package and PCB Thermal Data
PowerSSO-24 Thermal Data
Figure 25. PowerSSO-24 PC Board
Figure 26. R
Figure 27. 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
0.01
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
1
6
10
8
Package and PCB Thermal Data
100
10
1000
Footprint
2 cm
8 cm
2
2
17/22
2
).