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LM3822MMX-1.0 Folha de dados(PDF) 10 Page - National Semiconductor (TI) |
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LM3822MMX-1.0 Folha de dados(HTML) 10 Page - National Semiconductor (TI) |
10 / 12 page Look-Up Tables The following tables show how to convert the duty cycle of the PWM output to a current value, and vice versa. The quantization error of 1⁄2 bit is not shown in these tables. Please see the “PWM Output and Current Accuracy” section for more details. TABLE 1. Current to Duty Cycle Conversion Table Sense Current (Imax = 1.0A) Sense Current (Imax = 2.0A) Duty Cycle (%) 1 2 95.5 0.95 1.90 93.2 0.90 1.80 90.9 0.85 1.70 88.6 0.80 1.60 86.4 0.75 1.50 84.1 0.70 1.40 81.8 0.65 1.30 79.5 0.60 1.20 77.3 0.55 1.10 75.0 0.50 1 72.7 0.45 0.90 70.5 0.40 0.80 68.2 0.35 0.70 65.9 0.30 0.60 63.6 0.25 0.50 61.4 0.20 0.40 59.1 0.15 0.30 56.8 0.10 0.20 54.5 0.05 0.10 52.3 0.00 0.00 50 −0.05 −0.10 47.7 −0.10 −0.20 45.5 −0.15 −0.30 43.2 −0.20 −0.40 40.9 −0.25 −0.50 38.6 −0.30 −0.60 36.4 −0.35 −0.70 34.1 −0.40 −0.80 31.8 −0.45 −0.90 29.5 −0.50 −1 27.3 −0.55 −1.10 25 −0.60 −1.20 22.7 −0.65 −1.30 20.5 −0.70 −1.40 18.2 −0.75 −1.50 15.9 −0.80 −1.60 13.6 −0.85 −1.70 11.4 −0.90 −1.80 9.1 −0.95 −1.90 6.8 −1 −2 4.5 www.national.com 10 |
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Descrição semelhante - LM3822MMX-1.0 |
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