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Specifications subject to change without notice.

LS05(-F) series

2013.08.29-A/1

Page 4 of 5

EMC RECOMMENDED CIRCUIT

AC(N)

AC(L)

AC(L)

LCM

CX

CY1

CY2

AC-DC

C1

+

5

FUSE

14

CY0

12

7

AC(N)

-Vo

+Vo

L1

+

+

C2

C3

TVS

RL

C4

LDM

can use MORNSUN s FC-L01DV1

'

(Figure 3):Recommended circuit for applications which require higher EMC standard

EMC RECOMMENDED CIRCUIT PCB LAYOUT

Figure 4：EMC application circuit PCB layout

Safety and recommend wiring: linewidth

≥6.4mm

EXTERNAL CIRCUIT PARAMETERS

Model

C1

(Required)

C2

(Required)

L1

(Required)

C3

(Required)

CX1

C4

CY0

FUSE

(Required)

TVS

LS05-15B03S(-F)

470

µF/10V

LS05-15B05S(-F)

470

µF/16V

0.47uH

150

µF/35

V

SMBJ7.0A

LS05-15B09S(-F)

SMBJ12A

LS05-15B12S(-F)

LS05-15B15S(-F)

330

µF/25V

1uH

150

µF/35

V

SMBJ20A

LS05-15B24S(-F)

22

µF/400V

100

µF/35V

4.7uH

47

µF/35V

0.1

µF/275V

AC

100nF/50V

1nF/400

VAC

1A/250V

SMBJ30A

Note:

1. C1, C2 and C3 are electrolytic capacitors. They are required both AC input and DC input.

When AC input, C1 is used as filter capacitor, the value of C1 is recommended to be 22

µF /400V.When DC input, C1 is used as EMC filter capacitor, the value of

C1 is recommended to be 10

µF/400V(when the input voltage is above 370VDC, the recommended value of C1 is 10µF/450V).C2 and C3 are output filer

capacitors, they are recommended to be high frequency and low impedance electrolytic capacitors. Capacitance and rated ripple current of capacitors refer to the

datasheets provided by the manufactures. Voltage derating of capacitors should be 80% or above. C4 is a ceramic capacitor, which is used to filter high frequency

noise. C2,C3 and L1 form a pi filter circuit. Current of L1 refer to the datasheets provided by the manufactures, current derating should be 80% or above. To

protect post-circuits (if converter fails), TVS is recommended. And the

recommended to use S14K350.

2. For standard EMC requirement, please refer to figure 1.If higher EMC requirement ,please refer to figure 3, recommended parameters are shown in the table below.

Recommend Parameter For Higher EMC Standard Circuit

Components

Recommend Parameter

MOV2

S10K300

CY1, CY2

1nF/400VAC

CX

0.1

µF/275VAC

LCM

3.5mH

LDM

5mH

FC-L01DV1

MORNSUN

’s 1KV/2KV Surge protector

FUSE

1A/250V, slow blow, it must be connected to FUSE