FDD12-XXXXT4(2010) データシートの表示（PDF） - CHINFA ELECTRONICS

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FDD12-XXXXT4
(Rev.:2010)

DC - DC CONVERTER 10 ~ 12W SINGLE & DUAL OUTPUT

CHINFA ELECTRONICS 

RECOMMENDED CIRCUIT

‧Recommended filter for EN55022 Class B compliance

L1

C4

+

Vin + Vo +

C1

C2

FDD12

Vin -

Vo -

-

C3

‧Recommended EN 55022 Class B filter circuit layout.

FDD12 SERIES

SINGLE & DUAL OUTPUT

‧The commponents used in the above figure, together with the

manufacturer part numbers for these components, are as follows.

C1

C2

C3

FDD12-XXX4 4.7μF / 50V 4.7μF / 50V InF / 2KV

MLCC

MLCC

MLCC

FDD12-XXX5 6.8μF / 100V 6.8μF / 100V InF / 2KV

MLCC

MLCC

MLCC

C4

InF / 2KV

MLCC

InF / 2KV

MLCC

L1

0.5mH

Common

Choke

0.5mH

Common

Choke

DERATING AND EFFICIENCY CURVE

Temperature derating curve

100

NATURAL

CONVECTION

COOLING

0

-25

71

100

Ambient Temperature [ oC ]

Efficiency Vs Input Voltage

FDD12-05S4

82

81

80

79

78

77

76

18 20 22

24 26 28 30

Input Voltage (V)

Io : Full Load

32 34 36

www.chinfa.com

2010.02.09

Efficiency Vs Output Load

FDD12-05S4

85

80

75

70

65

Vi : 24VDC

60

55

50

10 20 30 40 50 60 70 80 90 100

Output Load (%)

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P4

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