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VND5050J-E Datasheet(PDF) 21 Page - STMicroelectronics

Part # VND5050J-E
Description  Double channel high side driver with analog current sense for automotive applications
PDF  28 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VND5050J-E Datasheet(HTML) 21 Page - STMicroelectronics

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VND5050J-E / VND5050K-E
Package and PCB thermal data
21/28
4.2
PowerSSO-24 thermal data
Figure 34. PowerSSO-24 PC Board
Figure 35. Rthj-amb Vs. PCB copper area in open box free air condition
Figure 36.
PowerSSO-24 Thermal Impedance Junction Ambient Single Pulse
Pulse Calculation Formula
Z
TH
δ
R
TH δ
Z
THtp 1
δ
–
()
+
⋅
=
where
δ = t
P/T
Layout condition of Rth and Zth measurements (PCB: Double layer, Thermal Vias, FR4 area= 77mm x 86mm,
PCB thickness=1.6mm, Cu thickness=70
µm (front and back side), Copper areas: from minimum pad lay-out to 8cm2).
30
35
40
45
50
55
02
46
8
10
RTHj_amb(°C/W)
PCB Cu heatsink area (cm^2)
0.1
1
10
100
1000
0.0001
0.001
0.01
0.1
1
10
100
1000
Time (s)
ZTH (˚C/W)
Footprint
8 cm2
2 cm
2



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