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R-553.3DA 数据表(PDF) 4 Page - Recom International Power |
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R-553.3DA 数据表(HTML) 4 Page - Recom International Power |
4 / 6 page R-5xxxPA_DA Series Output Current vs Input Voltage INNOLINE DC/DC-Converter 90 60 20 40 1.4 1 0.5 Internal Power Dissipation (W) 0 80 85 How to calculate the max output current The internal power dissipation(PD)follows the equation: PD = Io × Vo × (1- η) Io = PD / Vo × (1- η) Where PD = Internal power dissipation Io = Output current Vo = Output voltage η = Efficiency Example: R-545.0P , at Vin = 18Vdc , Vo = 5Vdc , η=93% (see "Selection Guide" table) (a) When Ta = 60°C , PD = 1.4 Watt (see adjacent diagram) Io = 1.4(W) / 5(V) × (1-0.93) = 4(A) (b) When Ta = 85°C , PD = 1 Watt (see adjacent diagram) Io = 1(W) / 5(V) × (1-0.93) = 2.857(A) (c) At Vin = 12Vdc efficiency = 94% (see "Selection Guide" table) When Ta = 85°C , PD = 1 Watt (see adjacent diagram) Io = 1(W) / 5(V) × (1-0.94) =3.33(A) Characteristics 1 1.8 0 5.0 2.3 3.3 1.2 0.5 Output Voltage (V) 1 1.8 0 5.0 2.3 3.3 1.2 0.5 Output Voltage (V) R-53xx / R-54xx Output Voltage Line Regulation VS Vout R-52xx / R-55xx Output Voltage Line Regulation VS Vout 2.0 5 0 20 10 15 1.5 Input Voltage (V) 1.0 0.5 1.2V 1.8V 2.5V 3.3V 5.0V 2.0 5 0 20 10 15 1.5 Input Voltage (V) 1.0 0.5 1.2V 1.8V 2.5V 3.3V 5.0V R-53xx / R-54xx Intput Voltage Load Regulation VS Vin R-52xx / R-55xx Intput Voltage Load Regulation VS Vin 27-March-2007 www.recom-international.com 158 |
类似零件编号 - R-553.3DA |
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类似说明 - R-553.3DA |
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