VN820SO-E STMICROELECTRONICS [STMicroelectronics], VN820SO-E Datasheet - Page 23

• Manufacturer Part Number: VN820SO-E
• Description: HIGH SIDE DRIVER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 42. SO-8 Thermal Impedance Junction Ambient Single Pulse
Figure 43. Thermal fitting model of a single
channel HSD in SO-8
1000
Tj
0.01
Pd
100
0.1
10
0.0001
C1
R1
ZTH (°C/W)
1
C2
R2
0.001
C3
R3
T_amb
C4
R4
VN820-E / VN820SO-E / VN820SP-E / VN820B5-E / VN820PT-E
0.01
C5
R5
0.1
C6
R6
Time (s)
Pulse calculation formula
Z
Table 15. Thermal Parameter
1
where
R1 (°C/W)
R2 (°C/W)
R3 ( °C/W)
R4 (°C/W)
R5 (°C/W)
R6 (°C/W)
C1 (W.s/°C)
C2 (W.s/°C)
C3 (W.s/°C)
C4 (W.s/°C)
C5 (W.s/°C)
C6 (W.s/°C)
TH
Area/island (cm
=
R
10
TH
=
t
p
+
T
Z
2
)
100
THtp
1 –
2.60E-03
0.0075
0.006
0.045
0.05
0.35
1.05
1000
0.5
0.8
3.5
21
16
58
0.5 cm
2 cm
28
2
2
23/38
2
2