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LW025 Datasheet(PDF) 11 Page - Tyco Electronics |
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LW025 Datasheet(HTML) 11 Page - Tyco Electronics |
11 / 16 page Tyco Electronics Corp. 11 Advance Data Sheet March 1999 36 Vdc to 75 Vdc Inputs; 25 W LW025 Single-Output-Series Power Modules: Thermal Considerations (continued) Heat Transfer (continued) 8-2477(C) Note: Conversion factor for linear feet per minute to meters per second: 200 ft./min. = 1 ms–1. Figure 15. LW025F Forced Convection Power Derating; Either Orientation 8-1985(C) Note: Conversion factor for linear feet per minute to meters per second: 200 ft./min. = 1 ms–1. Figure 16. LW025A Forced Convection Power Derating; Either Orientation 8-2479(C) Figure 17. LW025F Power Dissipation vs. Output Current, TA = 25 °C 8-1888(C).a Figure 18. LW025A Power Dissipation vs. Output Current, TA = 25 °C 50 60 70 80 90 100 0 4 MAX AMBIENT TEMPERATURE, TA (˚C) 2 1 3 40 110 MAX CASE TEMPURATURE 1.0 ms -1 (600 ft./min.) 5 2.0 ms -1 (400 ft./min.) 3.0 ms -1 (200 ft./min.) NATURAL CONVECTION 50 60 70 80 90 100 0 MAX AMBIENT TEMPERATURE, TA (˚C) 7 3 2 1 4 9 110 40 8 5 6 MAX CASE TEMPERATURE 2.0 ms-1 (400 ft./min.) 3.0 ms-1 (600 ft./min.) 1.0 ms-1 (200 ft./min.) NATURAL CONVECTION 0.9 1.4 1.9 2.4 2.9 3.4 0 4 OUTPUT CURRENT, I O (A) 2 1 3 0.4 4.9 5 3.9 4.4 6 VI = 75 V VI = 48 V VI = 36 V 8 7 5 4 0 0.5 1 1.5 2 4.5 5 OUTPUT CURRENT, IO (A) 2.5 3 3.5 4 3 2 1 6 VI = 75 V VI = 48 V VI = 36 V |
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