Low temperature operating range of military grade:
-40~70℃
Conversion efficiency up to 87%
Short circuit , over-current, over- voltage protection
Meets
IEC60950, EN60950, UL60950 standards
Three years warranty
E235235
RoHS
LB(05-25)-10BxxLT 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. It offers good EMC performance, meets
IEC/EN61000-4, CISPR22/EN55022, UL60950, EN60950 standards, and is widely used in industrial, office and civil applications. For harsh EMC
environment, this series of product must use the refered application circuit.
Selection Guide
Certification
Part No.
LB05-10B03LT
LB05-10B05LT
LB05-10B09LT
LB05-10B12LT
LB05-10B15LT
LB05-10B24LT
LB10-10B03LT
LB10-10B05LT
LB10-10B09LT
LB10-10B12LT
LB10-10B15LT
LB10-10B24LT
LB15-10B03LT
UL/CE
(pending)
LB15-10B05LT
LB15-10B09LT
LB15-10B12LT
LB15-10B15LT
LB15-10B24LT
LB15-10B48LT
LB20-10B03LT
LB20-10B05LT
LB20-10B09LT
LB20-10B12LT
LB20-10B15LT
LB20-10B24LT
LB25-10B03LT
LB25-10B05LT
LB25-10B09LT
LB25-10B12LT
13.5W
20.5W
25W
20W
13.5W
17.5W
15W
9.9W
14W
10W
6.6W
5W
Output Power
4W
Nominal Output Voltage and
Current
(Vo/Io)
3.3V/1250mA
5V/1000mA
9V/550mA
12V/420mA
15V/330mA
24V/230mA
3.3V/2000mA
5V/2000mA
9V/1100mA
12V/900mA
15V/700mA
24V/450mA
3.3V/3000mA
5V/2800mA
9V/1600mA
12V/1250mA
15V/1000mA
24V/625mA
48V/320mA
3.3V/4100mA
5V/3500mA
9V/2100mA
12V/1600mA
15V/1300mA
24V/850mA
3.3V/4100mA
5V/4100mA
9V/2500mA
12V/2100mA
Efficiency
(230VAC, %/Typ.)
70
75
77
79
80
82
70
76
78
80
81
82
73
76
78
80
80
84
85
74
78
80
82
83
85
74
79
81
83
Max. Capacitive
Load(μF)
4000
4000
1800
1800
1500
330
26000
9400
3600
2400
1200
370
36000
20000
6000
3000
3000
900
370
48000
12000
7200
5400
2700
1800
48000
12000
5600
5400
2014.06.23-A/0
Page 1 of 7
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
AC/DC Converter
LB(05-25)-10BxxLT Series
Selection Guide
Certification
Part No.
LB25-10B15LT
LB25-10B24LT
LB25-10B48LT
25W
Output Power
Nominal Output Voltage and
Current
(Vo/Io)
15V/1600mA
24V/1100mA
48V/500mA
Efficiency
(230VAC, %/Typ.)
84
85
87
Max. Capacitive
Load(μF)
2400
1400
800
UL/CE
(pending)
Input Specifications
Item
Input Voltage Range
Input frequency
LB05 models
LB10 models
LB15 models
Input current
LB20/LB25 models
LB05 models
LB10 models
LB15 models
LB20/LB25 models
LB05/LB10/LB15 models
Inrush current
LB20/ LB25 models
LB05/LB10/LB15 models
LB20/ LB25 models
Leakage current
LB05 models
Recommended External Input Fuse
LB10/ LB15 models
LB20/ LB25 models
115VAC
230VAC
230VAC
115VAC
Operating Conditions
AC input
DC input
Min.
85
120
47
--
--
--
--
--
--
--
--
--
--
--
--
Typ.
--
--
--
--
--
--
--
--
--
--
--
10
16
20
30
Max.
264
370
63
0.125
0.26
0.37
0.6
0.08
0.16
0.22
0.34
--
--
--
--
A
Unit
VAC
VDC
Hz
0.1mA RMS typ. 230VAC/50Hz
1A/250V, slow fusing
2A/250V, slow fusing
3.15A/250V, slow fusing
Output Specifications
Item
Output Voltage Accuracy
Line Regulation
Load Regulation
Output Ripple & Noise*
Temperature Drift Coefficient
Short Circuit Protection
Over-current Protection
3.3/5VDC
9VDC
Over-voltage Protection
12/15VDC
24VDC
48VDC
Min. Load
Hold-up Time
115VAC input
230VAC input
0
--
--
--
15
80
Operating Conditions
Main circuit
Full load
10%-100% load
20MHz bandwidth (peak-peak value)
Main circuit
Min.
--
--
--
--
--
Typ.
±2
±0.5
±1
50
±0.02
Max.
--
--
--
100
--
mV
%/°C
%
Unit
Continuous, self-recovery
≥110%Io
self-recovery
≤7.5VDC
≤12VDC
≤20VDC
≤30VDC
≤60VDC
--
--
--
%
ms
Note: *Parallel line test method is adopted to test the ripple and noise, please see
AC-DC Converter Application Notes
for specific operation methods.
2014.06.23-A/0
Page 2 of 7
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
AC/DC Converter
LB(05-25)-10BxxLT Series
General Specifications
Item
Isolation Voltage
Storage Temperature
Storage Humidity
Welding Temperature
Wave-soldering
Manual-welding
LB05 models
Switching Frequency
LB10 models
LB15/LB20/LB25 models
-40℃ to -10℃
Power Derating
Safety Standard
Safety-regulated Certification
Safety Class
Hot Plug
MTBF
50℃ to +70℃(LB25-10BxxLT series)
55℃ to +70℃(Others)
IEC60950/EN60950/UL60950
EN60950/UL60950(pending)
LB15-10BxxLT
Others
Unavailable
MIL-HDBK-217F@25℃ > 300,000 h
CLASS II
CLASS I
--
--
--
2
3
4
Input-output
Operating Temperature
Operating Conditions
Test time: 1min
Min.
3000
-40
-40
--
Typ.
--
--
--
--
Max.
--
+70
+105
95
Unit
VAC
℃
%RH
260±5℃; time:5~10s
360±10℃; time:3~5s
66
100
65
--
--
--
132
--
--
--
--
--
%/℃
kHz
Physical Specifications
Casing Material
Package Dimensions
Weight
Cooling method
Black flame-retardant and heat-resistant plastic (UL94-V0)
Refer to the Dimensions
Refer to the Dimensions
Free air convection
EMC Specifications
EMI
Conducted Disturbance
Radiated Emission
Electrostatic Discharge
Radiation Immunity
EFT
Surge Immunity
Conducted Disturbance
immunity
Immunity for Power
frequency magnetic field
Immunities of voltage dip,
drop and short interruption
CISPR22/EN55022, CLASS B
CISPR22/EN55022, 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/EN61000-4-8
IEC/EN61000-4-11
±6KV/±8KV
10V/m
±2KV
±4KV (See Fig. 2 for recommended circuit)
±1KV/±2KV
±2KV/±4KV (See Fig. 2 for recommended circuit)
10 Vr.m.s
10A/m
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 A
perf. Criteria B
EMS
2014.06.23-A/0
Page 3 of 7
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
AC/DC Converter
LB(05-25)-10BxxLT Series
Product Characteristic Curve
O utput Power Percent(%)
O utput Power Percent(%)
Temperature Derating Graph
Oth ers seri es
LB2 5-10B seri es
Input Voltage Derating Graph
10 0
80
75
60
40
20
85
26 4
10 0
24 0
Input Voltag e
（
VA C
）
10 0
80
60
40
20
-40
-10
50 55
70
Inp ut v oltage: 10 0~2 40VAC
Amb ient temp erature:25℃
Amb ient temp erature(
℃
)
Note: When in put 85~ 100 VAC/2 40~ 264 VAC
,
it need to b e voltag e
derated on b asis of temperature dera ti ng
.
Note: W hen inp ut DC , VD C= 1.414 VAC -20.
Efficiency Vs Input Voltage(Full Load)
100
95
100
90
Efficiency Vs Output Load(Vin=230VAC)
LB25-10B24LT
LB15-10B24LT
LB05-10B24LT
Efficiency(%)
90
85
80
75
70
85
120
240
264
LB25-10B24LT
LB15-10B24LT
LB05-10B24LT
Efficiency(%)
80
70
60
50
40
30
10
20
30
40
50
60
70
80
90
100
Input Voltage(VAC)
Output Power Percentage(%)
Design Reference
1. Typical application circuit
AC(L)
FUS E
AC(L)
M OV 1
+Vo
C1
C2
T VS 1
LO AD
AC / DC
AC(N)
-Vo
AC(N)
Fig. 1: Typical application circuit
Model
LB05-10B03LT
LB05-10B05LT
LB05-10B09LT
LB05-10B12LT
LB05-10B15LT
LB05-10B24LT
LB10-10B03LT
LB10-10B05LT
LB10-10B09LT
LB10-10B12LT
LB10-10B15LT
LB10-10B24LT
LB15-10B03LT
LB15-10B05LT
LB15-10B09LT
LB15-10B12LT
C1(uF)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C2(uF)
330
330
120
120
68
68
470
330
120
120
120
68
680
680
470
220
TVS1
SMBJ7.0A
SMBJ7.0A
SMBJ12A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ7.0A
SMBJ7.0A
SMBJ12A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ7.0A
SMBJ7.0A
SMBJ12A
SMBJ20A
Model
LB15-10B15LT
LB15-10B24LT
LB15-10B48LT
LB20-10B03LT
LB20-10B05LT
LB20-10B09LT
LB20-10B12LT
LB20-10B15LT
LB20-10B24LT
LB25-10B03LT
LB25-10B05LT
LB25-10B09LT
LB25-10B12LT
LB25-10B15LT
LB25-10B24LT
LB25-10B48LT
C1(uF)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
C2(uF)
220
68
33
330
330
220
220
220
220
330
330
330
330
330
120
68
TVS1
SMBJ20A
SMBJ30A
SMBJ64A
SMBJ7.0A
SMBJ7.0A
SMBJ12A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ7.0A
SMBJ7.0A
SMBJ12A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ64A
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, advice use 1μF.which is used to filter high-frequency noise. TVS is a recommended component to protect post-circuits if converter fails.
2014.06.23-A/0
Page 4 of 7
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
AC/DC Converter
LB(05-25)-10BxxLT Series
2. EMC solution-recommended circuit
Can u se M OR NSUN
'
s FC-LX1 D
FUSE
AC( L)
CY1
MOV1 CX
CY2
LDM
LCM
AC( L)
+Vo
C1
C2
TVS1
RL
+
ACDC
-Vo
AC( N)
AC( N)
Fig. 2: EMC Recommended circuit with higher requirements
Fig.3: Recommended EMC circuit-PCB layout
Suggestions for safety regulation and wiring width: wire width
≥3mm,
distance between wires
≥6mm,
and distance between wire and
ground
≥6mm
Element model
MOV1
CY1 , CY2
CX
LCM
LDM
Recommended value
S14K350
1000pF/400VAC
0.1μF/275VAC
10mH, recommended to use
MORNSUN’s FL2D-Z5-103
5uH
FUSE
--
Element model
FC-LX1D
LB05
LB10/15
LB20/25
--
Recommended value
2KV/4KV EMC filter
1A/250V slow fusing, necessary
2A/250V slow fusing, necessary
3.15A/250V slow fusing, necessary
--
3. Application of Trim and calculation of Trim resistance
+Vot
+Vot
R
1
V
ref
R
2
R
3
R
1
Trim
R
T
V
ref
R
2
R
3
R
T
Trim
0V
Trim up
0V
Trim down
Applied circuits of Trim (Part in broken line is the interior of models)
Calculation formula of Trim resistance:
up: R
T
=
down : R
T
=
aR
2
R
2
-a
aR
1
R
1
-a
-R
3
-R
3
a=
a=
Vref
R
1
Vot- Vref
Vot-Vref
R
2
Vref
R
T
is Trim resistance;
a is a self-defined parameter, with
no real meaning.
2014.06.23-A/0
Page 5 of 7
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
