LH25-20BxxMU series ----- is a compact size power converter offered by Mornsun. It features universal input voltage, taking both DC and AC
Input voltage, low power consumption, high efficiency, high reliability, safer isolation. Meets EN60601-1, ANSI/AAMI ES60601-1,
CAN/CSA-C22.2 No. 60601-1 standards (2xMOPP), and widely used in medical, industrial, instruments, telecommunication and civil
applications. For harsh EMC environment, the application circuit in the datasheet is strongly recommended.
Selection Guide
Certification
Part No.
LH25-20B05MU
LH25-20B12MU
CSA/CE
LH25-20B15MU
LH25-20B18MU
LH25-20B24MU
25 W
Output Power
20.5W
Nominal Output Voltage and
Current(Vo/Io)
5V/4100mA
12V/2100mA
15V/1600mA
18V/1400mA
24V/1100mA
Efficiency
(230VAC, %/Typ.)
82
88
88
88
89
Max. Capacitive
Load(µF)
10000
5000
4000
3000
1000
Input Specifications
Item
Input Voltage Range
Input frequency*
Input current
Inrush current
Leakage current
Recommended External Input
Fuse(Chassis mounting, DIN-Rail mounting
package series include fuse)
Hot Plug
*Medical Certification Input frequency range：47-63 Hz
Operating Conditions
AC input
DC input
115VAC
230VAC
115VAC
230VAC
Min.
85
100
47
--
--
--
--
Typ.
--
--
--
--
--
10
25
Max.
264
370
440
0.6
0.34
--
--
Unit
VAC
VDC
Hz
A
0.1mA RMS typ./264VAC/60Hz
3.15A/250V, slow fusing
Unavailable
Output Specifications
Item
Output Voltage Accuracy
Line Regulation
Load Regulation
Ripple & Noise*
Temperature Coefficient
Short Circuit Protection
20MHz bandwidth (peak-peak value)
Operating Conditions
Main circuit
Full load
Min.
--
--
--
--
--
Typ.
±2
±0.5
±1
50
±0.02
Max.
--
--
--
150
--
mV
%/°C
%
Unit
Continuous, self-recovery
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AC/DC Converter
LH25-20BxxMU Series
Over-current Protection
5VDC Output
Over-voltage Protection
12 /15VDC Output
18VDC Output
24VDC Output
Stand-by Power Consumption
Min. Load
Hold-up Time
115VAC input
230VAC input
--
0
--
--
--
--
15
80
≥110%Io
self-recovery
≤7.5VDC
≤20VDC
≤25VDC
≤30VDC
0.1
--
--
--
W
%
ms
Note: * Ripple and noise are measured by “parallel cable” method, please see AC-DC Converter Application Notes for specific operation.
General Specifications
Item
Isolation Voltage
Storage Temperature
Storage Humidity
Welding Temperature
Switching Frequency
Power Derating
Safety Standard
Safety Certification
Safety Class
Insulation Level
MTBF
Primary to secondary
-40℃ to -25℃
+50℃ to +70℃
+55℃ to +70℃
5V Output
Others
Wave-soldering
Manual-welding
--
3.3
2.5
Input-output
Operating Temperature
Operating Conditions
Test time: 1min Leakage current≦5mA
Min.
4000
-40
-40
--
Typ.
--
--
--
--
Max.
--
+70
+85
95
Unit
VAC
°C
%RH
260 ± 5℃; time:5 - 10s
360 ± 10℃; time:3 - 5s
65
--
--
--
--
--
%/°C
kHz
3.3
--
--
EN60601-1,ANSI/AAMI ES60601-1,
CAN/CSA-C22.2 No. 60601-1
EN60601-1,ANSI/AAMI ES60601-1,
CAN/CSA-C22.2 No. 60601-1
CLASSⅡ
2xMOPP
MIL-HDBK-217F@25°C≥ 300,000 h
Physical Specifications
Casing Material
Horizontal package
Dimension
A2 chassis mounting
A4 Din-Rail mounting
Horizontal package
Weight
A2 chassis mounting
A4 Din-Rail mounting
Cooling method
Black flame-retardant and heat-resistant plastic (UL94V-0)
70.00*48.00*23.50mm
96.10*54.00*32.00mm
96.10*54.00*36.60mm
120g (Typ.)
170g (Typ.)
210g (Typ.)
Free air convection
EMC Specifications
EMI
CE
RE
ESD
RS
EFT
EMS
Surge
CS
Voltage dips, short
interruptions and voltage
variations immunity
EN55011(CISPR11) / EN55022(CISPR22) CLASS B
EN55011(CISPR11) / EN55022(CISPR22) CLASS B
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
IEC/EN61000-4-4
IEC/EN61000-4-5
IEC/EN61000-4-5
IEC/EN61000-4-6
IEC/EN61000-4-11
Contact ±6KV/Air ±8KV
10V/m
±2KV
±4KV (See Fig. 2 for recommended circuit)
line to line ±1KV
line to line ±2KV (See Fig. 2 for recommended circuit)
10Vr.m.s
0%,70%
Perf. Criteria B
perf. Criteria A
perf. Criteria B
perf. Criteria B
perf. Criteria B
perf. Criteria B
perf. Criteria A
perf. Criteria B
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AC/DC Converter
LH25-20BxxMU Series
Product Characteristic Curve
O u t p u t P o w e r P e r c e n t( % )
O u tp u t P o w e r P e rc e n ta g e ( % )
Te m p e r a t u r e D e r a t in g C u r v e
100
80
60
50
40
20
-4 0
-25
50 55 70
A m b ie n t te m p e r a t u r e (
℃
)
In p u t v o l ta g e : 8 5 - 2 6 4 VA C
100-370VD C
5 V O u tp u t
O th e r s
In p u t V o lt a g e D e ra tin g C u r v e
100
80
75
60
40
20
85
100
100
120
240
340
I n p u t V o lt a g e
264
370
VA C
VDC
A m b ie n t t e m p e r a t u r e : 2 5
℃
O u tp u t P o w e r P e rc e n ta g e( % )
A ltitu d e D e r a tin g C u r v e
10 0
80
60
40
20
0
30 00
A ltitu d e (m )
50 00
Note:
①When
input 85-100VAC/100-120VDC, it need to be voltage derated on basis of temperature derating;
②Altitude
should be derated based on temperature derating when it is 3000 - 5000m;
③This
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)
FU S E
A C (L )
+ Vo
C1
C2
TVS
RL
AC -DC
A C (N )
A C (N )
- Vo
型号
LH25-20B05MU
LH25-20B12MU
LH25-20B15MU
LH25-20B18MU
LH25-20B24MU
C2(µF)
330
330
330
120
68
TVS1
SMBJ7.0A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ30A
Fig. 1: Typical application circuit
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 voltage reduced to at least 80%. C1 is ceramic capacitor, which is
used to filter high-frequency noise, advice use 1
µF
. TVS is a recommended component to protect post-circuits if converter fails. External input FUSE model is
recommended to use 3.15A/250V slow fusing
2. EMC solution-recommended circuit
F US E
A C( L)
C a n u se M O R N SU N
'
s F C -L X 1 D
LD M
LC M
A C( L)
C Y1
+V o
C1
C2
TV S
RL
MOV 1
CX
A C -D C
C Y2
-V o
+
A C( N )
A C( N )
Fig 2: EMC Recommended circuit with higher requirements
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AC/DC Converter
LH25-20BxxMU Series
Element model
MOV1
CY1 , CY2
CX
LCM
LDM
FC-LX1D
FUSE
Recommended value
S14K300
1nF/400VAC
0.1µF/275VAC
10mH, recommended to use MORNSUN’s FL2D-Z5-103
4.7µH/2A
2KV/4KV EMC filter
3.15A/250V slow fusing, necessary
3. For more information Please find the application note on
www.mornsun-power.com
Dimensions and Recommended Layout
A2 Dimensions
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AC/DC Converter
LH25-20BxxMU Series
A4 Dimensions
Note:
1. Packing information please refer to Product Packing Information which can be downloaded from
www.mornsun-power.com.
Packing
bag number of Horizontal package : 58220006, the Packing bag number of A2 /A4 package:58220010;
2. If the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all
parameters in the datasheet;
3. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25
℃,
humidity<75% with nominal
4.
5.
6.
7.
input voltage and rated output load;
All index testing methods in this datasheet are based on our Company’s corporate standards;
The performance parameters of the product models listed in this manual are as above, but some parameters of non-standard model
products may exceed the requirements mentioned above. Please contact our technicians directly for specific information;
We can provide product customization service;
Specifications are subject to change without prior notice.
Mornsun Guangzhou Science & Technology Co., Ltd.
Address: No. 5, Kehui St. 1, Kehui Development Center, Science Ave., Guangzhou Science City, Luogang District, Guangzhou, P. R. China
Tel: 86-20-38601850-8801
Fax: 86-20-38601272
E-mail: info@mornsun.cn
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