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LS2803R3D Arkusz danych(PDF) 7 Page - International Rectifier |
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LS2803R3D Arkusz danych(HTML) 7 Page - International Rectifier |
7 / 16 page www.irf.com 7 LS-SERIES (28V Input, Single/Dual Output) LS Series Output Voltage Adjustment Output of LS series can be adjusted to be greater or less than the nominal output voltage with an external resistor. However, the ranges of the output voltages are limited depending on the model as specified in Table 1 and 2. An approximate value of the resistor can be determined using the following formula. For Single Output Model: Radj = A - (B x Vout) (C x Vout) - D For Dual Output Model: Radj = A - (B x 2Vout) (C x 2Vout) - D Where: Radj is the value of the external resistor in kilo-ohms, Rdown or Rup in Figure 1 or 2. Power rating of the resistor shall be ≥ 0.125W. Metal film resistor with temperature coefficient of ≤ ±50 ppm and tolerance of ≤ 1% is recommended. However, the final selection is dependent on specific design requirements. Vout is the desired output voltage in volts. A, B, C, and D are unique constants depending on the model as shown in Table 1 for single output models and Table 2 for dual output models. Table 1: Single Output Voltage Ranges and Constants Model Output Voltage Range (V) (1) AB C D 1.500 to 1.600 69.65 32.39 8.75 13.13 1.400 to 1.500 56.85 40.47 7.14 10.72 2.500 to 2.750 48.42 13.04 3.52 8.81 2.250 to 2.500 39.52 21.19 2.88 7.19 3.300 to 3.630 43.48 9.25 2.50 8.25 2.970 to 3.300 35.48 16.18 2.04 6.73 5.000 to 5.500 119.48 20.00 2.27 11.36 4.500 to 5.000 97.52 29.31 1.85 9.27 12.000 to 13.200 295.22 19.98 2.27 27.24 10.800 to 12.000 241.01 53.31 1.85 22.24 15.000 to 16.500 370.61 19.98 2.27 34.05 13.500 to 15.000 302.55 63.61 1.85 27.80 LS2805S LS2812S LS2815S LS2801R5S LS2802R5S LS2803R3S |
Podobny numer części - LS2803R3D |
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Podobny opis - LS2803R3D |
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