DC/DC Converter

URF_LP-10WR3 Series

2014.07.14-A/0

Page 3 of 5

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EMS

EFT

IEC/EN61000-4-4

±2KV (see Fig.3-① for recommended circuit)

perf. Criteria B

Surge immunity

IEC/EN61000-4-5

±2KV (see Fig.3-①for recommended circuit)

perf. Criteria B

Conducted disturbance immunity

IEC/EN61000-4-6

3 Vr.m.s

perf. Criteria A

Immunities of voltage dip,

drop and short interruption

IEC/EN61000-4-29 0-70%

perf. Criteria B

Product Characteristic Curve

Operating Temperature( )

℃

Temperature Derating Curve

Safe Operating Area

-40

040

71 85

120

80

60

100

120

40

20

0

Fig. 1

URF2405LP-

10WR3

60

65

70

75

80

85

90

95

100

9

141924293436

Input Voltage (V)

Efficiency Vs Input (Full Load)

URF2405LP-

10WR3

50

55

60

65

70

75

80

85

90

95

100

5

102030405060708090 100

Output Current Percentage (%)

Efficiency Vs Output Load(Vin=Vin-nominal)

URF4815LP-

10WR3

60

65

70

75

80

85

90

95

100

18

24

30

36

42

48

54

60

66

75

Input Voltage (V)

Efficiency Vs Input Voltage (Full Load)

URF4815LP-

10WR3

50

55

60

65

70

75

80

85

90

95

100

5

1020 3040 5060708090 100

Output Current Percentage (%)

Efficiency Vs Output Load(Vin=Vin-nominal)

Design Reference

1. Typical application

All the DC/DC converters of this series are tested according to the recommended circuit (see Fig. 2) before delivery.

If it is required to further reduce input and output ripple, properly increase the input & output of additional capacitors Cin and Cout or

select capacitors of low equivalent impedance provided that the capacitance is no larger than the max. capacitive load of the product.

Vin

GND

+Vo

0V

DC

Cin

DC

Cout

Fig. 2

Cin

Cout

10μF~47μF10μF