VN750-E Datasheet, PDF (19/31 Pages) STMicroelectronics – HIGH SIDE DRIVER

VN750-E / VN750S-E / VN750PT-E / VN750B5-E
Figure 35. SO-8 Thermal Impedance Junction Ambient Single Pulse
ZTH (°C/W)
1000
100
10
0.5 cm²
2 cm²
1
0.1
0.01
0.0001 0.001 0.01
0.1
1
Time (s)
10
100 1000
Figure 36. Thermal fitting model of a single
channel HSD in SO-8
Tj _C1
C2
C3
C4
C5
C6
R1
R2
R3
R4
R5
R6
Pd
T_amb
Pulse calculation formula
THδ ^{= R}TH ^{⋅ δ + Z}THtp^{(1 – δ)}
where δ = t_p ⁄ T
Table 14. Thermal Parameter
Area/island (cm²)
R1 (°C/W)
R2 (°C/W)
R3 ( °C/W)
0.5
2
0.05
0.8
3.5
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)
21
16
58
28
0.006
2.60E-03
0.0075
0.045
0.35
1.05
2
19/31