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237

April-2005

POWERLINE

DC/DC-Converter

RP20-S_DF

Series

125

75

50

25

0

100

Ambient Temperature Range (°C)

-25 -10 0

50 60

80 90 100

Natural Convection

-40

70

71°C

125

75

50

25

0

100

Ambient Temperature Range (°C)

-25 -10 0

50 60 70

80 90 100

Natural Convection

-40

79°C

RP20-481.5SF

RP20-481.5SF With Heat Sink

83

75

74

72

Input Voltage (V)

36

76

77

78

79

80

81

82

73

40

55 60

75

45 50

65 70

Efficiency VS Input Voltage

82

72

70

60

Output Load (A)

1

74

76

77

78

79

80

81

65

2345

6

Efficiency VS Output Load

RP20-481.5SF

RP20-481.5SF

Typical Characteristics

Input Voltage Range

12V nominal input

9-18VDC

24V nominal input

18-36VDC

48V nominal input

36-75VDC

Input Filter (see note 9)

L-C Type

Input Voltage Variation dv/dt

(Complies with ETS300 132 part 4.4)

5V/ms max

Input Surge Voltage (100 ms max.)

12V Input

36VDC

24V Input

50VDC

48V Input

100VDC

Input Reflected Ripple (nominal Vin and full load)

20mAp-p

Start Up Time (nominal Vin and constant resistor load)

10ms typ.

Remote ON/OFF (see note 7)

DC-DC ON

Open or 3.5V < Vr < 12V

DC-DC OFF

Short or 0V < Vr < 1.2V

Remote OFF input current

Nominal input

2.5mA

Output Power

20W max.

Output Voltage Accuracy (full Load and nominal Vin)

±1%

Voltage Adjustability

±10%

continued on next page

Derating graphes are valid only for the shown part numbers. If you need detailed derating-information about a

part-number not shown here please contact our technical customer service at info@recom-development.at