VN750-E Datasheet, PDF (20/31 Pages) STMicroelectronics – HIGH SIDE DRIVER

VN750-E / VN750S-E / VN750PT-E / VN750B5-E
Figure 37. PPAK Thermal Impedance Junction Ambient Single Pulse
ZT H (°C/W)
1000
100
10
0.44 cm²
6 cm²
1
0.1
0.0001 0.001 0.01
0.1
1
T ime (s)
10
100 1000
Figure 38. Thermal fitting model of a single
channel HSD in PPAK
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 15. Thermal Parameter
Area/island (cm²)
R1 (°C/W)
R2 (°C/W)
R3 ( °C/W)
0.5
6
0.15
0.7
1.6
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)
2
15
61
24
0.0006
0.0025
0.08
0.3
0.45
0.8
5
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