AC/DC Converter

LB(05-25)-10BxxLT Series

2014.06.23-A/0

Page 4 of 7

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Product Characteristic Curve

-40

-10

50 55

70

100

80

60

40

20

100~240VAC

Note: When input 85~100VAC/240~264VAC it need to be voltage

derated on basis of temperature derating

,

.

Temperature Derating Graph

Input voltage:

Ambient temperature( )

℃

100

240

85

264

20

40

100

60

80

75

Ambient temperature:25℃

Input Voltage VAC

（）

Input Voltage Derating Graph

Note: W hen input DC, VDC= 1.414VAC-20.

Others series

LB25-10B series

LB05-10B24LT

LB25-10B24LT

LB15-10B24LT

70

75

80

85

90

95

100

85

120

240

264

Input Voltage(VAC)

Efficiency Vs Input Voltage(Full Load)

LB05-10B24LT

LB25-10B24LT

LB15-10B24LT

30

40

50

60

70

80

90

100

10

20

30

40

50

60

70

80

90

100

Output Power Percentage(%)

Efficiency Vs Output Load(Vin=230VAC)

Design Reference

1. Typical application circuit

AC(L)

+Vo

-Vo

AC(L)

AC(N)

AC(N)

C1 C2

TVS1

LOAD

FUSE

AC/DC

MOV1

Fig. 1: Typical application circuit

Model

C1(uF)

C2(uF)

TVS1

Model

C1(uF)

C2(uF)

TVS1

LB05-10B03LT

1

330

SMBJ7.0A

LB15-10B15LT

1

220

SMBJ20A

LB05-10B05LT

1

330

SMBJ7.0A

LB15-10B24LT

1

68

SMBJ30A

LB05-10B09LT

1

120

SMBJ12A

LB15-10B48LT

1

33

SMBJ64A

LB05-10B12LT

1

120

SMBJ20A

LB20-10B03LT

1

330

SMBJ7.0A

LB05-10B15LT

1

68

SMBJ20A

LB20-10B05LT

1

330

SMBJ7.0A

LB05-10B24LT

1

68

SMBJ30A

LB20-10B09LT

1

220

SMBJ12A

LB10-10B03LT

1

470

SMBJ7.0A

LB20-10B12LT

1

220

SMBJ20A

LB10-10B05LT

1

330

SMBJ7.0A

LB20-10B15LT

1

220

SMBJ20A

LB10-10B09LT

1

120

SMBJ12A

LB20-10B24LT

1

220

SMBJ30A

LB10-10B12LT

1

120

SMBJ20A

LB25-10B03LT

1

330

SMBJ7.0A

LB10-10B15LT

1

120

SMBJ20A

LB25-10B05LT

1

330

SMBJ7.0A

LB10-10B24LT

1

68

SMBJ30A

LB25-10B09LT

1

330

SMBJ12A

LB15-10B03LT

1

680

SMBJ7.0A

LB25-10B12LT

1

330

SMBJ20A

LB15-10B05LT

1

680

SMBJ7.0A

LB25-10B15LT

1

330

SMBJ20A

LB15-10B09LT

1

470

SMBJ12A

LB25-10B24LT

1

120

SMBJ30A

LB15-10B12LT

1

220

SMBJ20A

LB25-10B48LT

1

68

SMBJ64A

Note:

Output filtering capacitor C2 is electrolytic capacitor, it is recommended to apply electrolytic capacitor with high frequency and low resistance. For

capacitance and current of capacitor please refer to manufacture’s datasheet. Capacitance withstand voltage derating should be 80% or above. C1 is

ceramic capacitor, advice use 1μF.which is used to filter high-frequency noise. TVS is a recommended component to protect post-circuits if converter fails.