HA16138PS Hitachi Semiconductor (acquired by Renesas), HA16138PS Datasheet - Page 14

• Manufacturer Part Number: HA16138PS
• Description: Ac/dc Switching Converter Controller ic With High-voltage Power MOSFET
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

HA16138PS
14
Figure 7 Sample Printed Circuit Board Copper Heat Sink Pattern
120
100
80
60
40
20
Thermal Resistance j-a and Maximum Power Dissipation vs.
0
Printed Circuit Board Copper Heat Sink Perimeter Length
2.0 oz copper heat sink
10
Length of copper, L (mm)
20
Pin holes
j-a
Wiring pattern
Pt(max) for Ta = +85 C
30
L
40
Glass-epoxy
printed circuit board
50
2.5
2.0
1.5
1.0
0.5
0