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TPS54478RTER Datasheet(PDF) 9 Page - Texas Instruments |
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TPS54478RTER Datasheet(HTML) 9 Page - Texas Instruments |
9 / 37 page -3 -2.9 -2.8 -2.7 -2.6 -2.5 -2.4 -2.3 -2.2 -2.1 -2 Vin = 3.3 V; Vss = 0.4 V Vin = 5 V; Vss = 0.4 V -50 -25 0 25 50 75 100 125 150 T - Junction Temperature - °C J 40 50 60 70 80 90 100 V = 5 V IN -50 -25 0 25 50 75 100 125 150 T - Junction Temperature - °C J 88 90 92 94 96 98 100 102 104 106 108 110 Vsense (Good) Falling Vsense (Fault) Rising Vsense (Fault) Falling Vsense (Good) Falling -50 -25 0 25 50 75 100 125 150 T - Junction Temperature - °C J 0 2 4 6 8 10 12 14 16 18 20 V = 5.5 V IN -50 -25 0 25 50 75 100 125 150 T - Junction Temperature - °C J 0 0.5 1 1.5 2 2.5 3 3.5 4 I - Output Current - A O 50 55 60 65 70 75 80 85 90 95 100 Vin = 5 V, DCR = 6.8 m , Fs = 1 MHz, Tj = 25°C W V = 3.3 V O V = 2.5 V O V = 1.8 V O V = 1.2 V O V = 1 V O 50 55 60 65 70 75 80 85 90 95 100 V = 2.5 V O Vin = 3.3 V, DCR = 6.8 m , Fs = 1 MHz, Tj = 25°C W 0 0.5 1 1.5 2 2.5 3 3.5 4 I - Output Current - A O V = 1.8 V O V = 1.2 V O V = 1 V O TPS54478 www.ti.com SLVSAS2 – JUNE 2011 TYPICAL CHARACTERISTICS CURVES (continued) SS CHARGE CURRENT vs TEMPERATURE PWRGD Rdson vs TEMPERATURE Figure 13. Figure 14. PWRGD THRESHOLD vs TEMPERATURE PWRGD LEAKAGE CURRENT vs TEMPERATURE Figure 15. Figure 16. EFFICIENCY vs LOAD CURRENT EFFICIENCY vs LOAD CURRENT Figure 17. Figure 18. Copyright © 2011, Texas Instruments Incorporated 9 |
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