AC/DC Converter
LDE45-20Bxx Series
FEATURES
45W, AC/DC converter
Universal 85-264VAC or 100-370VDC input voltage
Operating ambient temperature range: -40℃ to +70℃
High I/O isolation test voltage up to 4000VAC
Regulated output, low ripple & noise, low power consumption
High efficiency, high power density
Output short circuit, over-current, over-voltage protection
Plastic case meets UL94V-0 flammability
EMI performance meets CISPR32 / EN55032 CLASS B
IEC/EN/UL62368 safety approval
CB RoHS
LDE45-20Bxx series is one of Mornsun’s compact size power converters. It features universal AC input and at the same time accepts DC input
voltage, low power consumption, high efficiency, high reliability, reinforced isolation. The converters are widely used in industry, electricity,
instrument, communication and civil applications. For extremely harsh EMC environment, we recommend using the application circuit show
in Design Reference of this datasheet.
Selection Guide
Certification
CB/CE/UL
81
Capacitive Load
(µF) Max.
30000
LDE45-20B12
12V/3.8A
84
6400
LDE45-20B15
15V/3A
85
5600
24V/1.9A
86
2000
48V/0.94A
87
600
Part No.*
Output Power
LDE45-20B05
40W
LDE45-20B24
Nominal Output Voltage
and Current (Vo/Io)
5V/8A
45W
LDE45-20B48
Efficiency at 230VAC (%) Typ.
Note: * Use suffix ”A2S” for chassis and suffix ”A4S” for DIN-Rail mounting.
Input Specifications
Item
Input Voltage Range
Operating Conditions
Min.
Typ.
Max.
Unit
AC input
85
--
264
VAC
DC input
100
--
370
VDC
47
--
63
Hz
115VAC
--
--
1.5
230VAC
--
--
0.75
115VAC
--
50
--
230VAC
--
70
--
Input Frequency
Input Current
Inrush Current
A
3.15A/250V, slow-blow
Unavailable
Built-in Fuse
Hot Plug
Output Specifications
Item
Operating Conditions
Output Voltage Accuracy
Full load
Line Regulation
Rated load
Load Regulation
Ripple & Noise*
Typ.
Max.
--
±2
--
--
±0.5
--
0%-100% load
--
±1
--
20MHz bandwidth (peak-to-peak value)
--
60
120
mV
--
±0.02
--
%/℃
--
--
0.5
W
Temperature Coefficient
Stand-by Power Consumption
230VAC, normal temperature
Short Circuit Protection
Min.
Minimum Load
%
Hiccup, continuous, self-recovery
≥110%Io, self-recovery
Over-current Protection
Over-voltage Protection
Unit
5VDC output
≤ 9V (Output voltage clamp or hiccup)
12VDC output
≤ 16V (Output voltage clamp or hiccup)
15 VDC output
≤ 24V (Output voltage clamp or hiccup)
24 VDC output
≤ 35V (Output voltage clamp or hiccup)
48 VDC output
≤ 56V (Output voltage clamp or hiccup)
0
--
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--
%
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AC/DC Converter
LDE45-20Bxx Series
Hold-up Time
115VAC input
--
8
--
230VAC input
--
50
--
ms
Note: * The “parallel cable” method is used for ripple and noise test, please refer to AC-DC Converter Application Notes for specific information.
General Specifications
Item
Operating Conditions
Min.
Typ.
Electric Strength Test for 1min.,
leakage current 300,000 h
Mechanical Specifications
Case Material
Black plastic, flame-retardant and heat-resistant (UL94V-0)
Dimension
Weight
DIP
87.00 x 52.00 x 29.50 mm
A2S chassis mounting
135.00 x 70.00 x 37.90 mm
A4S Din-Rail mounting
137.00 x 70.00 x 42.40 mm
DIP
205g (Typ.)
A2S chassis mounting
290g (Typ.)
A4S Din-Rail mounting
360g (Typ.)
Cooling Method
Free air convection
Electromagnetic Compatibility (EMC)
Emissions
Immunity
CE
CISPR32/EN55032 CLASS B
RE
CISPR32/EN55032 CLASS B
ESD
IEC/EN61000-4-2
Contact ±6KV/ Air ±8KV
perf. Criteria B
RS
IEC/EN61000-4-3
10V/m
perf. Criteria A
EFT
IEC/EN 61000-4-4
±4KV
perf. Criteria B
perf. Criteria B
IEC/EN 61000-4-5
line to line ±1KV
Surge
IEC/EN 61000-4-5
CS
IEC/EN61000-4-6
line to line ±2KV/ line to ground ±4KV
(See Fig. 2 for recommended circuit)
10Vr.m.s
Voltage dip, short interruption and
voltage variation
IEC/EN61000-4-11 0%, 70%
perf. Criteria B
perf. Criteria A
perf. Criteria B
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AC/DC Converter
LDE45-20Bxx Series
Product Characteristic Curve
Note: ① With an AC input between 85-100VAC/240-264VAC and a DC input between 100-140VDC/340-370VDC, the output power must be derated as per
temperature derating curves;
② This product is suitable for applications using natural air cooling; for applications in closed environment please consult factory or one of our FAE.
Design Reference
1. Typical application
Fig. 1: Typical circuit diagram
Part No.
LDE45-20B05
LDE45-20B12
LDE45-20B15
LDE45-20B24
LDE45-20B48
C1(µF)
1
C2(µF)
680
220
220
120
100
FUSE
MOV
3.15A/250V,
slow-blow
S14K350
TVS
SMBJ7.0A
SMBJ20A
SMBJ20A
SMBJ30A
SMBJ64A
Output Filter Components:
We recommend using an electrolytic capacitor with high frequency, and low ESR rating for C2 (refer to manufacture’s datasheet). Choose a capacitor voltage
rating with at least 20% margin, in other words not exceeding 80%. C1 is a ceramic capacitor used for filtering high-frequency noise and TVS is a recommended
suppressor diode to protect the application in case of a converter failure.
2. EMC compliance recommended circuit
Fig 2: EMC application circuit with higher requirements
(Output external circuit refer to the typical application circuit)
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AC/DC Converter
LDE45-20Bxx Series
Component
Recommended value
FUSE
3.15A/250V, slow-blow, required
MOV1
S20K300
MOV2/MOV3
S10K300
GDT
EM3600XS
CX
0.22µF/275VAC
CY1、CY2
1nF/400VAC
R1
1MΩ/1W
LDM
4.7uH
LCM
2mH
3. For additional information please refer to application notes on www.mornsun-power.com
Dimensions and Recommended Layout
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AC/DC Converter
LDE45-20Bxx Series
A2S Dimensions
A4S Dimensions
2020.06.29-A/4
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MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
AC/DC Converter
LDE45-20Bxx Series
Note:
1. For additional information on Product Packaging please refer to www.mornsun-power.com. Packaging bag number: 58220019(DIP
package); 58220031 (A2S/A4S package);
2. Unless otherwise specified, parameters in this datasheet were measured under the conditions of Ta=25℃, humidity
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