LH10-10B24 [MORNSUN]
5-25W, AC-DC CONVERTER; 5-25W ， AC- DC转换器
| 型号： | LH10-10B24 |
| 厂家： | 
MORNSUN SCIENCE& TECHNOLOGY LTD. |
| 描述： | 5-25W, AC-DC CONVERTER |
| 文件： | 总11页 (文件大小：215K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LHXX-10XXX SERIES
5-25W, AC-DC CONVERTER
LH---- are high efficiency green power modules with various packaging
provided by Mornsun. The features of this series are: wide input voltage,
DC and AC all in one, high efficiency, high reliability, low loss, safety
isolation etc. They are widely used in industrial, office and civil
equipments. EMC and safety standards meet international standards
IEC61000 UL60950and IEC60950, and Multi-certificate is in processing.
PRODUCT FEATURES
MODEL SELECTION
1. Universal Input :85 ~ 264VAC,50/60Hz
2. AC and DC all in one (input from the same terminal)
3. Low Ripple and Noise
4. Overload protection and short circuit protection
5. High efficiency, High power density
6. Low loss, green power
7. Multiple models available
8. industrial level specifications
9. 3 years warranty
LH10-10B24
Output Voltage
Output Style
Input Voltage
Isolation Voltage
Rated Power
Package Style
Product Series
PRODUCT PROGRAM
Ripple and Noise
(Typ.)
Efficiency
(%)(Typ.)
Approval
UL/CE
Model
Package
Power
4W
Output (Vo1/Io1)
3.3V/1250mA
Output (Vo2/Io2)
LH05-10B03
70
UL/CE
UL/CE
UL/CE
UL/CE
UL/CE
LH05-10B05
LH05-10B09
LH05-10B12
LH05-10B15
LH05-10B24
5V/1000mA
9V/550mA
12V/420mA
15V/330mA
24V/230mA
LH05-10A05
LH05-10A12
LH05-10A15
LH05-10A24
+5V/500mA
+12V/210mA
+15V/160mA
+24V/100mA
-5V/500mA
-12V/210mA
-15V/160mA
-24V/100mA
48.5X36X20.5mm
50mV
5W
76
LH05-10C0505-01
LH05-10C0512-01
LH05-10C0515-01
LH05-10C0524-01
5V/800mA
5V/600mA
5V/600mA
5V/600mA
±5V/100mA
±12V/100mA
±15V/80mA
±24V/50mA
LH05-10D0505-01
LH05-10D0512-01
LH05-10D0515-01
LH05-10D0524-01
5V/900mA
5V/750mA
5V/700mA
5V/600mA
5V/100mA
12V/100mA
15V/100mA
24V/100mA
UL/CE
LH10-10B03
6.6W
3.3V/2000mA
70
78
UL/CE
UL/CE
UL/CE
UL/CE
UL/CE
LH10-10B05
LH10-10B09
LH10-10B12
LH10-10B15
LH10-10B24
5V/2000mA
9V/1100mA
12V/900mA
15V/700mA
24V/450mA
UL/CE
UL/CE
UL/CE
UL/CE
LH10-10A05
LH10-10A12
LH10-10A15
LH10-10A24
+5V/1000mA
+12V/450mA
+15V/350mA
+24V/200mA
-5V/1000mA
-12V/450mA
-15V/350ma
-24V/200ma
50mV
55X45X21.0mm
10W
LH10-10C0505-04*
LH10-10C0512-02
LH10-10C0515-02
LH10-10C0524-01*
5V/1200mA
5V/1000mA
5V/900mA
5V/1000mA
±5V/400mA
±12V/200mA
±15V/200mA
±24V/100mA
UL/CE
UL/CE
UL/CE
UL/CE
LH10-10D0505-02
LH10-10D0512-02
LH10-10D0515-02
LH10-10D0524-02
5V/1800mA
5V/1500mA
5V/1400mA
5V/1000mA
5V/200mA
12V/200mA
15V/200mA
24V/200mA
50mV
78
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
LH** B/4-2008 Page 1 of 5
Ripple and Noise
(Typ.)
Efficiency
(%)(Typ.)
Approval
UL/CE
Model
Package
Power
9.9W
Output (Vo1/Io1)
3.3V/3000mA
Output (Vo2/Io2)
LH15-10B03
73
UL/CE
UL/CE
UL/CE
UL/CE
UL/CE
UL/CE
LH15-10B05
LH15-10B09
LH15-10B12
LH15-10B15
LH15-10B24
LH15-10B48
5V/2800mA
9V/1600mA
12V/1250mA
15V/1000mA
24V/625mA
48V/320mA
50mV
80
LH15-10A05
LH15-10A12
LH15-10A15
+5V/1500mA
+12V/650mA
+15V/500mA
-5V/1500mA
-12V/650mA
-15V/500mA
15W
62x45x22.5mm
LH15-10C0505-05
LH15-10C0512-02
LH15-10C0515-02
LH15-10C0524-01*
5V/2000mA
5V/2000mA
5V/1800mA
5V/2000mA
±5V/500mA
±12V/200mA
±15V/200mA
±24V/100mA
LH15-10D0505-08
LH15-10D0512-04
LH15-10D0515-03*
LH15-10D0524-02
5V/2200mA
5V/2000mA
5V/2000mA
5V/2000mA
5V/800mA
12V/400mA
15V/300mA
24V/200mA
UL/CE
UL/CE
UL/CE
UL/CE
UL/CE
LH20-10B03
LH20-10B05
LH20-10B12
LH20-10B15
LH20-10B24
3.3V/4100mA
5V/3500mA
12V/1600mA
15V/1300mA
24V/850mA
LH20-10A05
LH20-10A12
LH20-10A15
+5V/2000mA
+12V/830mA
+15V/650mA
-5V/2000mA
-12V/830mA
-15V/650ma
70x48x23.5mm
20W
50mV
82
LH20-10C0505-05*
LH20-10C0512-04
LH20-10C0515-03
LH20-10C0524-02
5V/2500mA
5V/2000mA
5V/2000mA
5V/2000mA
±5V/500mA
±12V/400mA
±15V/300mA
±24V/200mA
LH20-10D0505-10*
LH20-10D0512-06
LH20-10D0515-05*
LH20-10D0524-03
5V/3000mA
5V/2500mA
5V/2500mA
5V/2500mA
5V/1000mA
12V/600mA
15V/500mA
24V/300mA
UL/CE
UL/CE
UL/CE
UL/CE
UL/CE
LH25-10B05
LH25-10B12
LH25-10B15
LH25-10B24
LH25-10B48
5V/4100mA
12V/2100mA
15V/1600mA
24V/1100mA
48V/500mA
70x48x23.5mm
25W
50mV
85
Remarks :
1. Ripple and Noise were measured by the method of parallel lines;
2. Unless otherwise specified, all specifications above are measured at rated input voltage and rated output load, Ta=25oC, humidity < 75%;
3. All specifications stated in this datasheet are subject to the above listed models only. For specifications of non-standard models, please contact our technical
support team.
4. Model numbers marked with”*” are in developing.
INPUT SPECIFICATIONS
Input voltage range
85 ~ 264VAC, 120 ~ 370VDC
47 ~ 63Hz
Input frequency
110VAC
230VAC
Input current
Inrush current
LH05 models
LH10 models
LH15 models
LH20 models
LH25 models
120mA , typ
230mA , typ
250mA , typ
330mA , typ
420mA , typ
70mA , typ
120mA , typ
140mA , typ
180mA , typ
230mA , typ
110VAC
10A, typ
10A, typ
10A, typ
16A, typ
230VAC
20A, typ
20A, typ
20A, typ
30A, typ
LH05 models
LH10 models
LH15 models
LH20/LH25 models
LH05 models
LH10/LH15 models
LH20/LH25 models
1A/250V
2A/250V
3.15A/250V slow blow
slow blow
slow blow
External input
fuse(recommended)
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
LH** B/4-2008 Page 2 of 5
OUTPUT SPECIFICATIONS
Voltage set accuracy
±2%
(main output)
Input variation
±0.5% (main output)
±1.5% (supplement output)
Load variation (10-100%)
Single output models
Dual output models (balanced load)
Isolated triple output (balanced load)
±1%
±2%
Vo1
±3%
(main output)
±Vo2 ±5%
(supplement output)
(main output)
(supplement output)
Isolated and separated twin output (balanced load) Vo1
Vo2
±3%
±5%
Minimum load
single output models
0%
Dual output models
Isolated and separated twin output
Isolated triple output
10% (main output)
10% (main output)
10% (main output)
Ripple& noise(p-p)
20MHz Bandwidth
≤100mV (main output)
Continuous, and auto resume
≥110% IO
Short circuit protection
Over current protection
Over output voltage protection
3.3 / 5VDC models
9VDC models
12 / 15VDC models
24VDC models
48VDC models
≤6.5VDC
≤12VDC
≤20VDC
≤30VDC
≤60VDC
COMMON SPECIFICATIONS
Temperature ranges
Operating :
Power derating
-25°C ~ +70 °C
3.75% / °C
above 55°C:
LH20-10B05 above 50°C:
2.25% / °C
Storage:
-25°C ~ +105 °C
+90°C max
Case temperature:
(Vin=230VAC)
Hold-up time
80ms(typ)
85%(max)
Humidity (non condensing)
Temperature coefficient
0.02%/°C (main output)
0.15%/°C (supplement output)
Switching frequency
Efficiency
150kHz max
78% typ
I/O-isolation voltage
Leakage current
EMI/RFI conducted
3000VAC/1Min
0.3mA RMS typ. 230VAC/50Hz
EN55022, level B
EMC compliance
Electrostatic discharge ESD
RF field susceptibility
IEC/EN 61000-4-2 level 3 6KV/8KV
IEC/EN 61000-4-3
Electrical fast transients/bursts on mainsline
Surge
IEC/EN 61000-4-4 level 3 2KV
IEC/EN 61000-4-5 level 3 1KV / 2KV
Safety standards
Safety approvals
Safety Class
Case material
Install
IEC60950,EN60950,UL60950
EN60950, IEC60950,UL60950
CLASS 1 CLASS 2 While LH15)
UL 94V-0
PCB
MTBF
>200,000h @25°C
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
LH**
B/4-2008
Page 3 of 5
TYPICAL APPLICATIONS
LH**-10B**( single Output)
LH**-10A**(Dual output)
NTC
Fuse
Fuse
NTC
RL
C1 C2 TVS1
C1 C2 TVS1 RL
L
L
+Vo
L
L
+Vo
-Vo
N
Com
N
N
N
-Vo
C3
C4 TVS2 RL
TVS1 RL
LH**-10C**(Triple Output)
LH**-10D**(Isolate Twin Output)
Fuse NTC
C1 C2
+Vo1
C2
C1
TVS1 RL
Fuse
NTC
+
L
L
L
L
Vo1
-Vo1
RL
C3 C4 TVS2
-
+
Vo2
+Vo2
N
N
N
N
Com
-Vo2
-
C3 C4 TVS2 RL
EXTERNAL CAPACITORS TYPICAL VALUE(Unit: mF)
C5 C6 TVS3 RL
MODEL
C1
C3
C5
MODEL
C1
C3
C5
LH05-10B03
LH05-10B05
LH05-10B09*
LH05-10B12
LH05-10B15
LH05-10B24
330
330
120
120
68
LH15-10B03
LH15-10B05
LH15-10B09
LH15-10B12
LH15-10B15
LH15-10B24
LH15-10B48
LH15-10A05
LH15-10A12
LH15-10A15
680
680
470
220
220
68
68
33
LH05-10A05
120
68
120
68
47
10
22
22
22
22
22
22
22
22
470
220
120
470
220
120
LH05-10A12
LH05-10A15
47
LH05-10A24
10
LH05-10C0505-01
LH05-10C0512-01
LH05-10C0515-01
LH05-10C0524-01
LH05-10D0505-01
LH05-10D0512-01
LH05-10D0515-01
LH05-10D0524-01
LH10-10B03
220
120
120
120
220
220
120
120
470
330
120
120
120
68
22
22
22
22
LH15-10C0505-05
LH15-10C0512-02
LH15-10C0515-02
LH15-10C0524-01
LH15-10D0505-08
LH15-10D0512-04
LH15-10D0515-03
LH15-10D0524-02
470
470
470
470
470
470
470
470
220
120
120
47
220
120
120
47
470
220
120
47
LH10-10B05
LH20-10B03
330
330
220
220
220
470
120
68
LH10-10B09
LH20-10B05
LH10-10B12
LH20-10B12
LH10-10B15
LH20-10B15
LH10-10B24
LH20-10B24
LH10-10A05
220
120
47
220
120
47
LH20-10A05
470
120
68
LH10-10A12
LH20-10A12
LH10-10A15
LH20-10A15
LH10-10A24
33
33
LH20-10C0505-05
LH20-10C0512-04
LH20-10C0515-03
LH20-10C0524-02
LH20-10D0505-10
LH20-10D0512-06
LH20-10D0515-05
LH20-10D0524-03
LH25-10B05
330
330
330
330
330
330
330
330
330
330
330
120
68
220
120
120
47
220
120
120
47
LH10-10C0505-04
LH10-10C0512-02
LH10-10C0515-02
LH10-10C0524-01
LH10-10D0505-02
LH10-10D0512-02
LH10-10D0515-02
LH10-10D0524-02
220
220
220
220
220
220
220
220
120
68
120
68
47
47
47
47
330
220
220
120
68
68
47
47
LH25-10B12
LH25-10B15
LH25-10B24
LH25-10B48
Remark：
1. Output filtering capacitors C1, C2 and C3 are electrolytic capacitors, It is recommended to use high frequency and low impedance electrolytic capacitors. For
capacitance and current of capacitor please refer to manufacture’s datasheet. Voltage derating of capacitor should be 80% or above. C2,C4,C6 are use to filter
high frequency noise. TVS is recommended component to protect post-circuits (when converter fails).
2. External input NTC is recommended to use 5D-9 ( Only LH10 models and LH15 models)
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
LH** B/4-2008 Page 4 of 5
TYPICAL EFFICIENCY CURVE
Vin=230Vac
Load=100%
90
88
86
84
82
80
78
76
74
72
70
95
90
85
80
75
70
65
60
55
LH05-10B05
LH05-10B24
LH10-10B05
LH10-10B24
LH15-10B05
LH15-10B24
LH20-10B05
LH20-10B24
LH05-10B05
LH05-10B24
LH10-10B05
LH10-10B24
LH15-10B05
LH15-10B24
LH20-10B05
LH20-10B24
50
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
85
120
240
264
Input voltage (Vac)
Load
INPUT VOLTAGE VS LOAD
TEMPERATURE VS LOAD
Load
(%)
Load
(%)
100
100
80
80
60
40
60
20
40
70
100
Input voltage (Vac)
264
85
240
55
70
-25 -10 0
Temperature( C)
*Note: When input DC,
Vdc=1.414Vac-20Vdc.
PARALLEL LINES MEASURE
Copper sheet
Fuse
L
3
2
+Vo
C1
Connect
Oscillograph Probe
C2
Load
AC-DC
-Vo
N
25.4mm
25.4mm
C1:10μF
C2:0.1μF
OUTLINE AND DIMENSIONS
First Angle Projection
OUTLINE AND DIMENSIONS
3
N0.
LH05
12.5
LH10
17.5
LH15
17.5
LH20
20.0
LH25
20.0
A
B
C
D
8
48.5
40.5
4.0
55.0
47.0
5.0
62.0
54.0
5.0
70.0
62.0
5.75
70.0
62.0
5.75
7
6
2
1
(Bottom view)
5
E
F
G
I
16.0
20.0
20.0
23.0
23.0
4
36.0
20.5
4.0
45.0
21.0
4.0
45.0
22.5
4.0
48.0
23.5
4.0
48.0
23.5
4.0
Trim
C
B
I
I
FOOTPRINT DETAILS
Pin
1
LHXX-10B LHXX-10A LHXX-10C LHXX-10D
AC(N)
AC(L)
AC(N)
AC(L)
AC(N)
AC(L)
AC(N)
AC(L)
2
3
4
5
6
7
8
Trim
-Vo
-Vo
No Pin
COM
No Pin
+Vo
No Pin
-Vo1
+Vo1
-Vo2
COM
+Vo2
No Pin
-Vo1
+Vo1
No Pin
-Vo2
+Vo2
No Pin
No Pin
No Pin
No Pin
+Vo
(Side view)
Trim**
There is no Pin 1"
" on LH15-10BXX.
Note:
Trim**:Only For LH20/25-10BXXSeries
Unit:mm(inch)
Pin section:1.00mm(0.039inch)
MODLES WEIGHT
Pin Length(H): 6.00mm( 0.236inch)
Pin tolerances: 0.1mm( 0.004inch)
General tolerances: 0.5mm( 0.020inch)
WEIGHT
(TYP)
LH05
50g
LH10
70g
LH15
80g
LH20
120g
LH25
120g
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
LH** B/4-2008 Page 5 of 5
AC-DC Converter Application Guidelines
1. Foreword
The following guidelines should be carefully read prior to converter use. Improper use may
result in the risk of electric shock, damaging the converter, or fire.
1．1 Risk of Injury
A. To avoid the risk of burns, do not touch the heat sink or the converter’s case.
B. Do not touch the input terminals or open the case and touch internal components,
which cold result in electric shock or burns.
C. When the converter is in operation, keep hands and face at a distance to avoid
potential injury during improper operation.
1．2 Installation Advice
A. Please make sure the input terminals and signal terminals are properly connected in
accordance with the stated datasheet requirements.
B. To ensure safe operation and meet safety standard requirements, install a slow
blow fuse at input of the converter.
C. Installation and use of AC/DC converters should be handled by a qualified
professional.
D. AC/DC converters are used in the primary transmission stage of a design and thus,
should be installed in compliance with certain safety standards.
E. Please ensure that the input and output of the converter are incorporated into the
design out of the reach of the end user. The end product manufacturer should also
ensure that the converter is protected from being shorted by any service engineer or
any metal filings.
F. The application circuits and parameters shown are for reference only. All parameters
and circuits are to be verified before completing the circuit design.
G. These guidelines are subject to change without notice; please check our website for
updates.
2. General AC-DC Converter Applications
2.1 Basic Application Circuit
In Figure 1, F1 refers to the input fuse. Proper fuse selection should be a safety agency
approved, slow blow fuse. Selection of the proper fuse rating is necessary to ensure power
converter and system protection (potential failure if the rating is too high) and prevent false
fuse blowing (which could happen if the rating is too low). Below is the formula to calculate
the proper rating:
I = 3 x Vo1 x Io1 / η / Vin(min.)
Vo1 = output voltage
Io1 = output current;
η = the converter’s efficiency;
Vin(min) = the minimum input voltage
Futher circuit notations:
¨
¨
¨
¨
NTC is a thermistor.
CY and CX are safety capacitors.
C1 is a high frequency ceramic capacitor or polyester capacitor, 0.1μF/50V.
C2 is output filtering high frequency aluminum electrolytic capacitor. Select a 220μF
rating if the output current is greater than 5A, or a 100μF rating if the output current is less
than 5A. The insulation voltage should be derated to less than 80% of rated value.
For dual or triple output converters, the circuit of input side remains the same and the outputs
should be considered independently in component selection (see Figure 3).
The application circuit shown in Figure 1 is typical application circuit, whereby all MORNSUN
products will meet EMI Class B, and Class 3 lightening strike and surge testing (see component
datasheets for more details). To comply with more stringent EMC testing, additional filtering
should be incorporated. See Figure 2 for a suggested filtering circuit.
For multi-output converters, the main output is typically a fully regulated output. If the end
application requires critical regulation on the auxiliary output(s), a linear regulator or other
regular should be added after the converter. (Note: Some MORNSUN converters have built in
linear regulators; please contact our Technical Department for details).
3. AC-DC Converter Safety Related Design Notes
3.1 Marking Requirements
Wherever, there are fuses, protective grounds, or switches, clear symbols should be indicated
according safety standards. Touchable dangerous high voltage and energy sources should be
marked with “Caution!” indications.
3.2 Input Cable Requirements:
Input cables of L, N and E should be brown, blue and yellow/green cables, respectively.
Ensure that the ground cable (yellow & green cable) of Type I devices (those that rely on
basic insulation and protection ground to avoid electric shock) are securely connected to the
ground, and the earth resistance is lower than 0.1Ω
3.3 Clearance and Creepage
For Type I devices, ensure:
¨
¨
L and N are in front of the fuse.
The clearance distance between the input and the metal case is above 2mm and
creepage is above 2.5mm.
For Type II devices (those that rely on strengthened insulation or double insulation to avoid
electric shock) ensure:
¨
¨
L and N are in front of the fuse
The clearance distance between the input and the metal case is above 2mm and
creepage is above 2.5mm.
¨
The clearance between the input and the metal case or SELV is above 4mm, and
creepage of that is above 5mm.
3.4 Input energy
If the input capacitor is large, a discharge resistor may be added to ensure that, after
disconnect, the voltage held between Input L, N, and the protective ground will be discharged to
37% of its maximum value or below. In Figure 2, R1 is the discharge resistor.
4. Heat Dissipation in AC/DC Converter Module Applications
Trends toward higher density in AC/DC module designs make heat dissipation an important
concern. The effect of heat on the electrolytic capacitor is of particular concern, as the life of
such capacitors can be drastically reduced when operated in a constant high temperature
environment, leading to a higher potential for failure. Proper handling of heat will increase the
life of the converter and surrounding components, thus lowering risk of failures. Some
suggestions for handling dissipated heat are summarized, below:
(1) Ambient Air Cooling
For miniature and high power density converters, free air cooling is recommended, mainly due
to cost and space concerns.
¨
Heat dissipates to the ambient air through the converter case or exposed surfaces. Heat
may also dissipate to ambient air if there is a gap between the converter and the PCB.
Heat dissipates from the converter case and exposed surfaces to PCB by radiation.
Heat conducts through terminals (pins) to PCB.
¨
¨
In such applications, please pay particular attention to:
A. Air Flow - Because the heat dissipation is mainly through convection and radiation, the
converter needs an environment with good air flow. It may be helpful to design heat
dissipation venting holes throughout the end product, near the converter’s location. For
best convection cooling, ensure that air flow is not blocked by large components
B. Layout of Heat Generating Components - In most applications, the AC/DC converter is
usually not the only heat generating component.
It is recommended to keep a good
distance between each heat generating component to minimize heat dissipating clusters.
C. PCB Design - The PCB, which the power converter is assembled on, is not only a base to
mount the converter, but also acts as a heat sink for it, therefore heat dissipation should be
considered in PCB layout. We recommend extended the area of the main copper loop
and decrease the component density on the PCB to improve the ambient environment.
(2) Heat Sinks
When free air convection is not sufficient enough, we recommend the use of a heat sink for
further cooling. As the converters are filled with heat conductive silicon or epoxy, the heat
distribution in converter is even and it radiates from the converter to the air. The efficiency of
this convection is dependent on the size of the surface area of the converter. The use of heat
sinks is a practical method to add surface area and improve the convection. There are many
kinds of heat sinks available in the market. MORNSUN recommends considering the following
factors in selecting a heat sink:
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¨
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The heat sink should be made of a good heat conducting material, such as aluminum and
copper.
The larger the surface area, the better the radiation. Therefore, heat sinks usually have a
ridged surface or special coatings to make a larger surface area.
Use the longest and thickest possible heat sink for best convection.
Heat sinks are best attached to the converter’s surface, where the difference in temperature
between the surface and the ambient is largest. The use of heat conductive material between
the heat sink and the converter’s surface to make a better contact and to improve heat
conductance is suggested. To avoid case distortion, please do not affix the heat sink too firmly to
the converter case.
(3) Forced Air Cooling
In some systems, where a heat sink does not effectively reduce the ambient temperature, a fan
is used to improve the heat radiation. Fans can lower the surface temperature of the converter,
but large fans also occupy extra space in the system. It is important to select a suitable fan size,
where the speed of the fan will determines how effective it is. The faster the speed, the better
the effect on reducing radiated heat. As high speed will also cause increased noise, there is a
need to balance the choice between the how effective the fan is against how much audible noise
it generates.
A long, rectangular shaped AC/DC converter should use a horizontal fan, and channeled heat
sinks should use vertical fans, in order to encourage air flow through the channels.
5. Input Under Voltage Impact
5.1 Block Diagram of AC/DC Converter
5.2 Impact to Converter Reliability
The input voltage range of MORNSUN’s AC/DC converters is 85~264VAC or 120~370VDC.
When the converter is operated within the rated input voltage range, the output current can be
used up to the maximum rated specification. The total output power is Io x Vo.
If the converter is operated with an input voltage that is under the rated voltage, offering the
same output power of Io x Vo , causes the current (Is) at the transistor (S) to be increased.
Long term operation under this condition will damage the transistor (S).
5.3 Input Voltage vs Load Capability (LD03-00B24)
30
25
20
15
10
5
85VAC
80VAC
75VAC
70VAC
65VAC
60VAC
Load( %)
0
0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 110% 120% 130% 140%
Load
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
23.58 23.57
23.8 21
100%
110%
23.19
18.5
120%
19.2
15
130% 140%
85VAC
80VAC
75VAC
70VAC
65VAC
60VAC
23.85 23.82 23.79 23.77 23.74 23.71 23.68 23.65 23.61
23.83 23.82 23.82 23.83 23.82 23.82 23.81 23.81 23.81
23.83 23.83 23.83 23.83 23.82 23.82 23.82 23.81 23.77
23.83 23.83 23.83 23.83 23.82 23.82 23.81 23.79 19.96
14.7
13
11
10.5
7.04
20.29 16.65
16.44 13.32
15.67 12.46
14.02
11.14
9.57
10.98
8.79
7.65
9.39
23.83 23.83 23.83 23.83 23.82 23.82 23.82
23.8
19.6
23.83 23.83 23.83 23.83 23.82 23.51 17.86 14.13 10.52
8.28
0
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