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L9952GXPTR Datasheet(PDF) 33 Page - STMicroelectronics

Part # L9952GXPTR
Description  Power management system IC
PDF  68 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9952GXPTR Datasheet(HTML) 33 Page - STMicroelectronics

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L9952GXP
Thermal data
Doc ID 13518 Rev 5
33/68
Equation 1: pulse calculation formula
where
δ = tP/T
Figure 12. PowerSSO-36 thermal fitting model (V1 ON)
Table 9.
Thermal parameters
Area/island (cm2)Footprint
28
R1 (°C/W)
5
R2 (°C/W)
18
10
10
R3 (°C/W)
29
22
7,8
R4 (°C/W)
51
29
21
C1 (W.s/°C)
0,0003
C2 (W.s/°C)
0,35
1
1
C3 (W.s/°C)
1,5
1,3
1,3
C4 (W.s/°C)
5
15
15
Z
TH
δ
R
TH δ
Z
THtp
1
δ
–
()
+
⋅
=



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