URB4803YMD-6WR2-DT
6W,ULTRA-WIDE INPUT ISOLATED&
REGULATED SINGLE OUTPUT
DIP PACKAGING, DC-DC CONVERTER
FEATURES
l
4:1 wide input voltage range
l
Operating Temperature range:
-40°C ~ +85°C
l
Low ripple & noise
l
1.5KVDC isolation
l
Reinforced insulation
l
Output over voltage protection, Short circuit
protection
l
Industry standard pinout
l
Meet CISPR22/EN55022 CLASS A
l
UL60950 approved
Patent Protected RoHS
PART NUMBER SYSTEM
URB4803YMD-6WR2-DT
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
APPLICATION
URB4803YMD-6WR2-DT model provide 6 Watt output
power, with 4:1 wide range of 18-75VDC,1.5KVDC isolation,
output over-voltage and short-circuit protection. And it can
meet CISPR22/EN55022 CLASS A without external circuit.
Typical applications for this converter is industrial, electric
power, instrumentation, telecommunication.
SELECTION GUIDE
Input Voltage(VDC)
Model
Nominal
(Range)
URB4803YMD-6WR2-DT
48
(18-75)
Max.
80
①
Output Current (mA) Input Current (mA)(Typ.)
Output
Voltage
(VDC)
3.3
Max.
Min.
@Max.
Load
130
@No
Load
3
Max.
Reflected
Efficiency
Capacitive
Ripple
④
③
(%, Typ.)
Current
Load
@Max. Load
(mA,Typ.)
(µF)
20
1800
79
1500
75
Note：①Absolute maximum rating without damage on the converter,but it isn't recommended.
INPUT SPECIFICATIONS
Item
Input Surge Voltage (1Sec. max.)
Start-up Voltage
Input Filter
Test Conditions
Min.
-0.7
--
Typ.
--
--
Pi Filter
Max.
100
18
Unit
VDC
OUTPUT SPECIFICATIONS
Item
Output Voltage Accuracy
Line Regulation
Load Regulation
Transient Recovery Time
Transient Response Deviation
Temperature coefficient
Ripple & Noise*
Output Over Voltage Protection
Output Short Circuit Protection
100% load
20MHz bandwidth
Input voltage range
Full load, Input voltage from low to high
5% to 100% load
25% load step change
Test Conditions
Min.
--
--
--
--
--
--
--
110
Typ.
±1
±0.2
±0.5
300
±3
--
50
120
Max.
±2
±0.5
±1
500
±5
±0.03
75
140
µs
%
%/°C
mVp-p
%Vo
%
Unit
Continuous, automatic recovery
Note
:* Ripple and noise tested with "parallel cable" method. See detailed operation instructions at
DC-DC Application Notes.
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
URB4803YMD-6WR2-DT
2013.09.22-A/0
Page 1 of 5
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Switching Frequency
MTBF
Case Material
Size
Weight
PCB mounting
PCB mounting
--
Test Conditions
Input-Output, Tested for 1 minute , leakage current
less than 1 mA
Input-Output, Test at 500VDC
Input-Output,100KHz/0.1V
PWM mode
MIL-HDBK-217F@25℃
Min.
1500
1000
--
--
1000
Typ.
--
--
1000
300
--
Aluminum Alloy
25.4x25.4x11.7
15
--
mm
g
Max.
--
--
--
--
--
Unit
VDC
MΩ
pF
KHz
K hours
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
Max. Case Temperature
Lead Temperature
Cooling
Vibration
Operating Temperature curve range
1.5mm from case for 10 seconds
Test Conditions
Non condensing
Power derating (above 71℃, see Figure 5)
Min.
5
-40
-55
--
--
Typ.
--
--
--
--
--
Max.
95
85
125
105
300
°C
Unit
%
Free air convection
10-55Hz, 10G, 30 Min. along X, Y and Z
EMC SPECIFICATIONS
EMI
CE
RE
ESD
RS
EFT
EMS
Surge
CS
Voltage dips, short
and interruptions
immunity
CISPR22/EN55022
CISPR22/EN55022
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
IEC/EN61000-4-4
IEC/EN61000-4-5
IEC/EN61000-4-6
IEC/EN61000-4-29
CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-② or Figure 3）
CLASS A（Without External Circuit）/ CLASS B（External Circuit Refer to Figure1-② or Figure 3）
Contact
±4KV
10V/m
±2KV
±4KV
±2KV
3 Vr.m.s
0%-70%
perf. Criteria B
perf. Criteria A
perf. Criteria B（External Circuit Refer to Figure1-①）
perf. Criteria B（External Circuit Refer to Figure 3）
perf. Criteria B（External Circuit Refer to Figure1-①or Figure 3）
perf. Criteria A
perf. Criteria B
EMC RECOMMENDED CIRCUIT
FUS E
V in
LDM 1
+
MOV
GND
TVS
C0
C1
CY2
LD M2
Vi n
+Vo
EUT
GN D
- Vo
(0 V)
LOAD
①
②
CY1
(Figure1)
Recommended external circuit parameters:
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
CY1
CY2
Choose according to actual input current
S14K60
56μH
SMCJ90A
330μF/100V
1μF/100V
4.7μH
1nF/2KV
1nF/2KV
Note: In Figure 1,part①is EMS recommended external circuit, part② is EMI recommended external circuit. Choose according to requirements.
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
URB4803YMD-6WR2-DT
2013.09.22-A/0
Page 2 of 5
EMC RECOMMENDED CIRCUIT PCB LAYOUT
Note: The pad space between input and output (CY1/CY2) must≥2mm.
(Figure 2)
EMC MODULE APPLICATION CIRCUIT
FT-BX1D
FUSE
+Vin
+Vin
Vin
+Vo
C
-Vin
+
-Vin
EUT
+Vo
-Vo
GND
0V
Load
C≥330μF/100V
FT-A/BX1D is MORNSUN’s EFT suppresser
(Figure 3)
EMC MODULE RECOMMENDED CIRCUIT PCB LAYOUT
(Figure 4)
EMI TEST WAVEFORM (RECOMMENDED CIRCUIT FIGURE 1-②)
URB4803YMD-6WR2-DT CE（Class B, Positive line）
URB4803YMD-6WR2-DT CE（Class B, Negative line）
PRODUCT TYPICAL PERFORMANCE CURVE
Temperature Derating Graph
Operating Temp.(
℃
)
(Figure 5)
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MORNSUN
URB4803YMD-6WR2-DT
2013.09.22-A/0
Page 3 of 5
Efficiency VS Input Voltage curve
(Full Load)
URB4803YMD-6WR2-DT
100
95
90
85
80
75
70
65
60
55
50
18
26
36
46
56
Input Voltage(V)
66
75
Efficiency VS Output Load curve
(Vin=Vin-nominal)
URB4803YMD-6WR2-DT
100
90
Efficiency(%)
80
70
60
50
40
5
10 20
30 40 50 60 70 80 90 100
Total Output Current (%)
URB4803YMD-6WR2-DT PCB MOUNTING OUTLINE DIMENSIONS,RECOMMENDED FOOTPRINT
TEST CONFIGURATIONS
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate the source impedance.
Efficiency(%)
Oscilloscope
Lin
Cin
Current
Probe
DC DC
Load
Lin(4.7µH)
Cin(220µF, ESR < 1.0Ω at 100 KHz)
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
URB4803YMD-6WR2-DT
2013.09.22-A/0
Page 4 of 5
DESIGN CONSIDERATIONS
1) Recommended circuit
All the Series have been tested according to the following recommended test circuit before leaving the
factory (see Figure 6).
If you want to further decrease the input/output ripple, you can increase a capacitance-values properly or choose capacitors with low ESR, but
the total capacitance of the filter capacitor must not exceed the Max. Capacitive Load.
Cin: 10μF~47μF
Cout: 10μF
单路
Vin
Cin
+Vo
DC
DC
Cou t
GND
(Figure 6)
0V
2) It is not recommended to increase the output power capability by connecting two or more converters in parallel. The product is not
hot-swappable
Note:
1. Min. load shouldn't be less than 5%, otherwise ripple maybe increased dramatically, If the product operates under min. load, it may not be
guaranteed to meet all specifications listed. Operation under minimum load will not damage the converter.
2. Max. Capacitive Load is tested at input voltage range and full load.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
4. In this datasheet, all test methods are based on our corporate standards.
5. All characteristics are for listed models, and non-standard models may perform differently. Please contact our technical support for more details.
6. Please contact our technical support for any specific requirement.
7. Specifications of this product are subject to changes without prior notice.
MORNSUN 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
Fax:86-20-38601272
E-mail: info@mornsun.cn
Http://www.mornsun-power.com
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
URB4803YMD-6WR2-DT
2013.09.22-A/0
Page 5 of 5
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