AC/DC Converter

LH15-20BxxMU Series

2016.09.13-A/0

Page 3 of 5

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

Product Characteristic Curve

-4 0

- 2 5

5 5

7 0

1 0 0

8 0

6 0

4 0

2 0

8 5 - 2 6 4 VA C

1 0 0 - 3 7 0 V D C

Te m p e ra tu re D e ra tin g C u r v e

In p u t v o lt a g e :

A m b ie n t t e m p e ra t u r e (

)

℃

5 0

1 0 0

2 4 0

8 5

2 6 4

2 0

4 0

1 0 0

6 0

8 0

7 5

In p u t V o lt a g e

I n p u t V o lt a g e D e ra tin g C u r v e

VA C

1 2 0

3 4 0

1 0 0

3 7 0

V D C

5 0 0 0

2 0

4 0

1 0 0

6 0

8 0

0

A l t i t u d e (m )

3 0 0 0

A l t i t u d e D e r a t i n g C u r v e

Note: ①When input 85-100VAC/100-120VDC, it need to be voltage derated on basis of temperature derating;

②

Altitude should be derated based on temperature derating when it is 3000 - 5000m;

③

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

Design Reference

1. Typical application circuit

A C (L)

+ Vo

-Vo

A C ( L )

A C (N )

A C ( N )

C 1

C 2

T V S

R L

FU S E

A C - D C

Fig. 1: Typical application circuit

Element model

C2(µF)

TVS1

LH15-10B05MU

680

SMBJ7.0A

LH15-10B12MU

470

SMBJ20A

LH15-10B15MU

220

SMBJ20A

LH15-10B18MU

220

SMBJ30A

LH15-10B24MU

68

SMBJ30A

Note:

Note: Output filtering capacitors C2 is electrolytic capacitor, it is recommended to use high frequency and low impedance electrolytic capacitor. For

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

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

input FUSE model is recommended to use 2A/250V slow fusing.

2. EMC solution-recommended circuit

A C -D C

A C( N )

A C( L)

LC M

M O V 1

C X

C Y 1

C Y 2

F US E

A C( N )

A C( L)

+Vo

-Vo

+

LD M

C 1

C 2

TVS

RL

C an u se M O R NSU N s

'

FC -L X1D

Fig 2: EMC Recommended circuit with higher requirements