AC/DC Converter

LD05-23Bxx Series

2015.03.17-A/2

Page 3 of 5

MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation

Product Characteristic Curve

-25

0

55

70

10 0

50

20

60

40

~

27 7VAC

1 10

1 40

70

80

Ambient Temperature( )

℃

Temperature Derating Curve

Input voltage:

40

10 0

60

80

305

11 0

50

85

27 7

430

14 0

10 0

39 0

VAC

VDC

Input Volta ge

Input Voltage Derat ing Curve

Note: ①Input voltage should be derated based on temperature derating when it is 85~110VAC/277~305VAC/100~140VDC/390~430VDC;

②

This product is suitable for use in natural air cooling environments, if in a closed environment, please contact our company’s FAE.

LD05-23B05

LD05-23B12

LD05-23B24

50

55

60

65

70

75

80

85

90

85

110

180

230

277

305

Input Voltage(VAC)

Efficiency Vs Input Voltage(Full Load)

LD05-23B05

LD05-23B12

LD05-23B24

50

55

60

65

70

75

80

85

90

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

LOAD

FUS E

AC D C

MOV

NTC

Fig. 1

Model

C1(μF)

C2(μF)

LD05-23B03

1

220

LD05-23B05

220

LD05-23B09

100

LD05-23B12

100

LD05-23B15

100

LD05-23B24

47

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, which is used to filter high-frequency noise. External input NTC is recommended to use 12D-5. External input MOV is recommended to use

S14K350.

2. EMC solution-recommended circuit

ACDC

AC(N)

AC(L)

LCM

MOV CX

CY1

CY2

FUSE

AC(N)

AC(L)

+Vo

-Vo

+

L1

C1

C2

RL

Can use MORNSUN’s FC-LX1D

NTC

Fig 2