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R-735.0D データシート(PDF) 3 Page - Recom International Power |
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R-735.0D データシート(HTML) 3 Page - Recom International Power |
3 / 5 page www.recom-international.com 3 24-August-2005 R-7xxxP_D 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 H Hoow w ttoo ccaallccuullaattiinngg tthhee m maaxx oouuttppuutt ccuurrrreenntt 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-745.0P , at Vin = 28Vdc , Vo = 5Vdc , η=91% (see table 1) (a) When Ta = 60°C , PD = 1.4 Watt (see fig-1) Io = 1.4(W) / 5(V) × (1-0.91) = 3.11(A) (b) When Ta = 85°C , PD = 1 Watt (see fig-1) Io = 1(W) / 5(V) × (1-0.91) = 2.222(A) (c) At Vin = 12Vdc efficiency = 94% (see table 1) When Ta = 85°C , PD = 1 Watt (see fig-1) Io = 1(W) / 5(V) × (1-0.94) =3.33(A) Characteristics 50 5 Ripple Vs Vin Vo=9V Vo=3.3V Vo=5V Vo=12V 25 Vin ( V ) 10 15 20 25 28 Vo=6.5V Vo=15V ( Vo ) 100 5 Ripple Vs Vin 3.3V 5V 50 Vin ( V ) 10 15 20 25 28 6.5V ( Vo ) R-72xx / R-73xx Ripple VS Vin R-74xx Ripple VS Vin 100 5 Efficiency Vs Vin 3.3V 5V 50 Vin ( V ) 10 15 20 25 28 6.5V 15V ( Vo ) 100 5 Efficiency Vs Vin Vo=3.3V Vo=5V 50 Vin ( V ) 10 15 20 25 28 Vo=6.5V ( Vo ) R-72xx / R-73xx Efficiency VS Vin R-74xx Efficiency VS Vin 100 14 2 3 90 Efficiency Vs Iout (Vin=Min) 80 70 6.5V 3.3V 5.0V ( Vo ) 100 14 2 3 90 Efficiency Vs Iout (Vin=Max) 80 60 15V 3.3V 5.0V ( Vo ) R-72xx / R-73xx / R-74xx Efficiency / Load Vin=Min R-72xx / R-73xx / R-74xx Efficiency / Load Vin=Max |
同様の部品番号 - R-735.0D |
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同様の説明 - R-735.0D |
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