27550 데이터 시트보기 (PDF) - ON Semiconductor
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27550 Datasheet PDF : 15 Pages
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MC33275, NCV33275
180
1.6
160
PD(max) for TA = 50°C
1.4
140
120
Minimum
Size Pad
100
1.2
2.0 oz. Copper
L
1.0
ÎÎÎÎÎÎÎÎÎ L
0.8
80
0.6
RqJA
60
0.4
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 17. SOT−223 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
100
1.6
PD(max) for TA = 50°C
90
80
Minimum
70
Size Pad
60
1.4
2.0 oz. Copper
L
1.2
ÎÎÎÎÎÎÎÎ L
1.0
ÎÎÎÎÎÎÎÎ0.8
50
0.6
RqJA
40
0.4
0
5.0
10
15
20
25
30
L, LENGTH OF COPPER (mm)
Figure 18. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
170
3.2
150
PD(max) for TA = 50°C
2.8
130
2.4
110
90
70
Graph Represents Symmetrical Layout 2.0
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ L
2.0 oz.
Copper
1.6
ÎÎÎÎÎÎÎÎ1.2
RqJA
L
3.0
50
mm 0.8
30
0.4
0
10
20
30
40
50
L, LENGTH OF COPPER (mm)
Figure 19. SOP−8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
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