L4995 데이터 시트보기 (PDF) - STMicroelectronics
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L4995 Datasheet PDF : 35 Pages
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L4995
Package and PCB thermal data
Figure 33. PowerSSO-12 thermal impedance junction ambient single pulse
ZTH ( °C/ W)
100
Footprint
2 cm2
8 cm2
10
1
0,1
0,0001 0,001
0,01
0,1
1
Time ( s)
10
100
1000
Equation 4: pulse calculation formula
ZTHδ = RTH ⋅ δ + ZTHtp(1 – δ)
where δ = tP/T
Figure 34. Thermal fitting model of Vreg in PowerSSO-12
'!0'-3
Doc ID 13103 Rev 13
21/35
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