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STPS1545C Folha de dados(PDF) 3 Page - STMicroelectronics |
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STPS1545C Folha de dados(HTML) 3 Page - STMicroelectronics |
3 / 9 page STPS1545 Characteristics 3/9 Figure 1. Average forward power dissipation versus average forward current (per diode) Figure 2. Average forward current versus ambient temperature ( δ = 0.5, per diode) P (W) F(AV) 0123456789 10 0 1 2 3 4 5 6 T δ=tp/T tp I (A) F(AV) δ = 0.05 δ = 0.1 δ = 0.2 δ = 0.5 δ = 1 0 25 50 75 100 125 150 175 0 1 2 3 4 5 6 7 8 9 I (A) F(AV) TO-220AB DPAK 2 R=R th(j-a) th(j-c) R =15°C/W th(j-a) R =40°C/W th(j-a) T (°C) amb T δ=tp/T tp Figure 3. Normalized avalanche power derating versus pulse duration Figure 4. Normalized avalanche power derating versus junction temperature 0.001 0.01 0.1 0.01 1 0.1 10 100 1000 1 t (µs) p P(t ) P (1µs) ARM p ARM 0 0.2 0.4 0.6 0.8 1 1.2 25 50 75 100 125 150 T (°C) j P(t ) P (25°C) ARM p ARM Figure 5. Non repetitive surge peak forward current versus overload duration (maximum values, per diode) Figure 6. Relative variation of thermal impedance junction to case versus pulse duration I (A) M 1E-3 1E-2 1E-1 1E+0 0 20 40 60 80 100 120 IM t δ=0.5 t(s) T =50°C C T =100°C C T =150°C C 1E-4 1E-3 1E-2 1E-1 1E+0 0.0 0.2 0.4 0.6 0.8 1.0 Z/R th(j-c) th(j-c) T δ=tp/T tp t (s) p δ = 0.5 δ = 0.2 δ = 0.1 Single pulse |
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