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VNF9D5F Datasheet(PDF) 91 Page - STMicroelectronics

Part # VNF9D5F
Description  2-channel high-side driver with STi²Fuse protection for automotive power distribution applications
PDF  108 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VNF9D5F Datasheet(HTML) 91 Page - STMicroelectronics

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Table 73. PCB properties
Dimension
Value
Board finish thickness
1.6 mm ±10%
Board dimension
129 mm x 60 mm
Board material
FR4
Cu thickness (top and bottom layers)
0.070 mm
Cu thickness (inner layers)
0.035 mm
Thermal vias separation
1.2 mm
Thermal vias diameter
0.3 mm ±0.08 mm
Cu thickness on vias
0.025 mm
Footprint dimension (top layer)
6 mm x 6 mm
Heatsink copper area dimension (bottom layer)
Footprint, 2 cm2 or 8 cm2
Figure 47. RthJA vs PCB copper area in open box free air conditions
PCB Cu heatsink area (cm2 )
RthJA (°C/W)
30
35
40
45
50
55
60
0
2
4
6
8
10
RthJA on 4Layers PCB: 21.8 °C/W
RthJB: 6.5 °C/W
VNF9D5F
Package and PCB thermal data
DS13946 - Rev 8
page 91/108



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