The copyright and authority for the interpretation of the products are reserved by MORNSUN

Specifications subject to change without notice.

LD10-20BXX

A/3-2012

Page3 of 4

TYPICAL APPLICATIONS

L

+Vo

-Vo

L

N

N

C1

C2

FUSE

TVS

RL

NTC

M OV

+

Figure 1:LD10 application circuit

L

N

+Vo

-Vo

AC-DC

L

N

+Vo

-Vo

Figure 2: Note: This application is not supported for this series.

OUTPUT

can use MORNSUN

’s FC-L01D

N

L

N

L

LCM

MOV

R2

R1

R3

CX

CY3

CY4

ACDC

CY1

CY2

FUSE

Figure 3:LD10 series Recommended circuit for application require higher EMC standard

(external circuit output same as above)

Figure 4: EMC application circuit PCB layout

Safety and recommend wiring: linewidth A≥3mm,C≥9mm

EXTERNAL CAPACITORS TYPICAL VALUE

Model

C1

C2

TVS

LD10-20B03

1

µF /50V

220

µF /10V

SMBJ7.0A

LD10-20B05

1

µF /50V

220

µF /10V

SMBJ7.0A

LD10-20B09

1

µF /50V

120

µF /25V

SMBJ12A

LD10-20B12

1

µF /50V

120

µF /25V

SMBJ20A

LD10-20B15

1

µF /50V

120

µF /25V

SMBJ20A

LD10-20B24

1

µF /50V

68

µF /35V

SMBJ30A

Note:

1. Output filtering capacitors C1 is ceramic capacitor, it is used to filter high frequency noise. C2 is electrolytic capacitors, It is recommended to use high frequency

and low impedance electrolytic capacitors. For capacitance and current of capacitor please refer to manufacture

’s datasheet. Voltage derating of capacitor should

be 80% or above. TVS is a recommended component to protect post-circuits (if converter fails). External input NTC model is recommended to use 5D-9.

2. For standard EMC requirement, please refer to figure 1, if higher EMC requirement, please refer to figure 3 or figure 4.

MOV: Varistor,

model: 561KD14，it is used to protect the device under surge;

R3：1M

Ω/2W；

CY1、CY2、CY3、CY4：102M/400VAC；

CX：0.22

µF /275VAC；

10mH-30mH；

FC-L01D：MORNSUN

’s 2KV/4KV Surge protector.

PCB MOUNTING WITH SOLDER PINS

1

3

4

2

N

L

+Vo

- Vo

RECOMMENDED FOOTPRINT

Ф1.50[0.059]

2

1

3

4

(Bottom Vie w)

Note: grid2.54*2.54mm.

FOOTPRINT DETAILS

PIN

FUNCTION

Note:

Unit: mm[inch]

Pin diameter tolerances:

± .10mm[± 0.004inch]

General tolerances:

± 0.50mm[± 0.020inch]

0

(Ma in Vie w)

53.80[2.118]

45.72[1.800]

1

2

3

4

Ф1.00

[0.03 9]