AC/DC Converter FEATURES LD12-20Bxx Series
AC/DC Converter
LD12-20Bxx Series
FEATURES
12W, AC-DC converter
z
z
z
z
z
z
z
z
z
z
Universal input :85~264VAC/100~370VDC
AC and DC dual-use(input from the same terminal)
Ultra-slim SIP package
4000VAC safer isolation
Low ripple & noise
High efficiency, low power consumption,
green environmental protection
Output over voltage, short circuit and over current
protection
Meet UL60950 and EN60950 standards
Three years warranty
Mounting: PCB mounting, Chassis mounting, DIN-Rail
mounting available
RoHS
LD12 series ----- are the 12W compact size power converter offered by Mornsun. It features universal input voltage, taking both DC and AC
input voltage, low power consumption, low ripple& noise , high efficiency, high reliability, 4000VAC safer isolation. It offers good EMC
performance, meet IEC/EN61000-4, CISPR22/EN55022, UL60950 and EN60950 standards, and widely used in industrial, electricity, instruments,
telecommunication and civil applications.
Note: Please refer to Design Reference when module being used in a bad EMC environment.
Selection Guide
Model
Output Power
Nominal Output Voltage
and Current(Vo/Io)
Efficiency
(230VAC, %/Typ.)
Max. Capacitive Load
(uF)
LD12-20B03
7.9W
3.3V/2400mA
74
10000
5V/2400mA
78
10000
12V/1000mA
82
5400
15V/800mA
82
2700
24V/500mA
83
1500
Certification
LD12-20B05
UL/CE
LD12-20B12
12W
LD12-20B15
LD12-20B24
Input Specifications
Item
Operating Conditions
Input Voltage Range
Min.
Typ.
Max.
Unit
AC input
85
--
264
VAC
DC input
100
--
370
VDC
47
--
440
Hz
115VAC
--
280
--
230VAC
--
190
--
115VAC
--
10
--
230VAC
--
20
--
Input frequency
Input current
Inrush current
Recommended External Input Fuse
(Special package series include fuse)
mA
A
3.15A/250V, slow fusing
Unavailable
Hot Plug
Output Specifications
Item
Operating Conditions
Min.
Typ.
Max.
Output Voltage Accuracy
0%-100%
LD12-20B03
--
--
±3
Other models
--
--
±2
Line Regulation
Full load
--
±0.5
--
Load Regulation
10%-100% load
--
±1
--
Output Ripple & Noise*
20MHz bandwidth (peak-peak value)
--
--
100
2015.03.06-B/0
Unit
%
mV
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AC/DC Converter
LD12-20Bxx Series
Temperature Drift Coefficient
--
±0.02
--
%/°C
Stand-by Power Consumption
--
--
0.3
W
Short Circuit Protection
Continuous, self-recovery
Over-current Protection
≥110%Io self-recovery
Over-voltage Protection
Zener clamp diode
0
--
--
115VAC input
--
24
--
230VAC input
--
120
--
Min. Load
Hold-up Time
%
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.
General Specifications
Item
Operating Conditions
Min.
Test time: 1min
4000
--
--
Operating Temperature
-25
--
+70
Storage Temperature
-25
--
+105
Storage Humidity
--
--
95
Isolation Voltage
Input-output
Welding Temperature
Max.
Wave-soldering
260±5℃; time:5~10s
Manual-welding
360±10℃; time:3~5s
Switching Frequency
(+55℃~+70℃)
Power Derating
Typ.
(-25℃~0℃)
--
100
--
3.3
--
--
1
--
--
Safety Standard
IEC60950/EN60950/UL60950
Safety-regulated Certification
EN60950/UL60950
Safety Class
CLASS I I
MTBF
MIL-HDBK-217F@25°C > 300,000 h
Unit
VAC
°C
%RH
kHz
%/°C
Physical Specifications
Casing Material
Package
Dimensions
Weight
Black flame-retardant and heat-resistant plastic (UL94-V0)
Horizontal package
53.80*28.80*23.50mm
A2 chassis package
96.10*54.00*32.00mm
A4 Din-Rail package
96.10*54.00*36.60mm
A2S chassis package
76.00*31.50*32.30mm
A4S Din-Rail package
76.00*31.50*36.90mm
Horizontal package/ A2 chassis package/ A4 Din-Rail
package/ A2S chassis package/ A4S Din-Rail package
60g/110g/150g/80g/100g(Typ.)
Cooling method
Free air convection
EMC Specifications
EMI
EMS
CE
CISPR22/EN55022, CLASS B
RE
CISPR22/EN55022, CLASS B
ESD
IEC/EN61000-4-2
±6KV /±8KV
Perf. Criteria B
RS
IEC/EN61000-4-3
10V/m
perf. Criteria A
EFT
IEC/EN61000-4-4
±4KV
perf. Criteria B
IEC/EN61000-4-5
±2KV
perf. Criteria B
IEC/EN61000-4-5
±4KV/6KV (See Fig. 2 for recommended circuit)
perf. Criteria B
Surge
CS
IEC/EN61000-4-6
10 Vr.m.s
perf. Criteria A
PFM
Immunities of voltage dip, drop and
short interruption
IEC/EN61000-4-8
10A/m
perf. Criteria A
IEC/EN61000-4-11
0%-70%
perf. Criteria B
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AC/DC Converter
LD12-20Bxx Series
Te mperature D erating Curv e
100
80
75
I npu t Vol ta ge: 100~ 240VA C
120~ 340V DC
50
40
- 25
0
Input Vol tage De rati ng Curv e
Output Power Percentage(%)
Output Power P ercentage(%)
Product Characteristic Curve
100
80
70
60
20
70
55
A mb ient tem peratur e:25℃
40
85
100
240
264
VA C
100
120
340
370
VDC
I npu t Vol ta ge
A mbi ent Temper ature(℃ )
Note: ①Input voltage should be derated based on temperature derating when it is 85-100VAC/ 240-264VAC/ 100-120VDC/ 340-370VDC;
○
2 This product is suitable for use in natural air cooling environments, if in a closed environment, please contact our company’s FAE.
Efficiency Vs Input Voltage(Full Load)
Efficiency Vs Output Load(Vin=240VAC)
90
90
Efficiency(%)
Efficiency(%)
85
85
LD12-20B24
LD12-20B12
80
75
LD12-20B24
LD12-20B12
80
75
70
65
60
70
85
120
240
10
264
50
Output Power Percentage(%)
Input Voltage(VAC)
100
Design Reference
1. Typical application circuit
NT C
FU SE
AC(L)
A C(L)
C1
+Vo
C2
TVS
RL
AC DC
M OV 1
AC(N)
AC ( N)
- Vo
Fig. 1
Model
LD12-20B03
LD12-20B05
LD12-20B12
LD12-20B15
LD12-20B24
FUSE
NTC
MOV1
C1
3.15A
slow
fusing
10D-11
S20K350
1μF/50V
C2
220μF/10V
220μF/10V
120μF/25V
120μF/25V
68μF/50V
TVS
SMBJ7.0A
SMBJ7.0A
SMBJ20A
SMBJ20A
SMBJ30A
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, which is used to filter high-frequency noise. TVS is a recommended component to protect post-circuits if converter fails.
2. EMC solution-recommended circuit
Can use MORN SUN 's FC-LX1D2
AC(L)
LDM
FU SE
AC(L)
GDT4 CX
M OV3
+Vo
C1
C2
TVS
RL
CY1
M OV2
M OV1
AC(N)
LCM
R1
CY2
ACD C
AC(N)
-Vo
Fig 2
(Output external circuit refer to the typical application circuit)
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AC/DC Converter
LD12-20Bxx Series
EMC solution-recommended circuit PCB layout
Fig 3
Suggestions for safety regulation and wiring width: wire width ≥3mm, distance between wires ≥6mm, and distance between wire and
ground ≥6mm
Element model
MOV1
MOV2
MOV3
CX
CY1, CY2
Recommended value
S20K350
S10K300
S10K300
0.15μF/300VAC
2.2nF/400VAC
Element model
LDM
LCM
GDT4
FUSE
FC-LX1D2
Recommended value
4.7uH
10mH, recommended to use MORNSUN’s FL2D-Z5-103
EM3600XS
3.15A/250V, slow fusing
EMC filter
R1
1MΩ/2W
--
--
3. For more information Please find the application note on www.mornsun-power.com
Dimensions and Recommended Layout
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AC/DC Converter
LD12-20Bxx Series
LD12-20BxxA2 Dimensions
LD12-20BxxA4 Dimensions
2015.03.06-B/0
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AC/DC Converter
LD12-20Bxx Series
LD12-20BxxA2S Dimensions
LD12-20BxxA4S Dimensions
2015.03.06-B/0
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AC/DC Converter
LD12-20Bxx Series
Note:
1. Packing Information please refer to 'Product Packing Information'. The Packing bag number of Horizontal package : 58220011, the
2.
3.
4.
5.
6.
Packing bag number of A2/A4 package:58220010, the Packing bag number of A2S/ A4S package:58220022;
Unless otherwise specified, data in this datasheet should be tested under the conditions of Ta=25°C, humidity<75% when inputting
nominal voltage and outputting rated load;
All index testing methods in this datasheet are based on our Company’s corporate standards;
The performance indexes of the product models listed in this manual are as above, but some indexes of non-standard model products
will exceed the above-mentioned requirements, and please directly contact our technician for specific information;
We can provide product customization service;
Specifications of this product are subject to changes 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
2015.03.06-B/0
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