WRE_S - 3WR2 & WRF_S - 3WR2 Series
3W
，
WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
FEATURES
●
Ultra-Miniature SIP Package
●
2:1 wide input voltage range
●
Temperature range: -40°C ~ +85°C
●
3KVDC isolation
●
Short circuit protection(automatic recovery)
●
External On/Off control
●
High power density
APPLICATION
Patent Protected RoHS
PART NUMBER SYSTEM
WRF1205S-3WR2
Rated Pow er
Packag e St yle
Output Vo ltage
Input Volta ge
Product Se ries
The WRE_S-3WR2 & WRF_S-3WR2 Series are
specially designed for applications where a wide range input
voltage power supplies are isolated from the input power
supply in a distributed power supply system on a circuit
board. For these DC-DC converters, You can reduce the
design point of failure and save the development of micro
power supply‘s manpower, material and time costs, also
better ensure product quality stability, protect safety and
reliability of the end of products.
These products apply to where:
1) Input voltage range
≤2:1;
2) 3KVDC input and output isolation;
3) Regulated and low ripple noise is required.
Such as: industrial control, telecommunication etc.
SELECTION GUIDE
Input Voltage(VDC)
Model
Nominal
(Range)
WRE0505S-3WR2
WRE0512S-3WR2
WRE0515S-3WR2
WRF0505S-3WR2
WRF0509S-3WR2
WRF0512S-3WR2
WRF0515S-3WR2
WRE1205S-3WR2
WRE1212S-3WR2
WRE1215S-3WR2
WRF1203S-3WR2
WRF1205S-3WR2
WRF1209S-3WR2
WRF1212S-3WR2
WRF1215S-3WR2
WRF1224S-3WR2
WRE2405S-3WR2
WRE2409S-3WR2
WRE2412S-3WR2
WRE2415S-3WR2
WRF2403S-3WR2
WRF2405S-3WR2
WRF2409S-3WR2
WRF2412S-3WR2
WRF2415S-3WR2
WRF2424S-3WR2
24
(18-36)
40
12
(9-18)
20
5
(4.5-9)
11
Max.
①
Output
Voltage
(VDC)
±5
±12
±15
5
9
12
15
±5
±12
±15
3.3
5
9
12
15
24
±5
±9
±12
±15
3.3
5
9
12
15
24
Output Current (mA) Input Current (mA)(Typ.)
@Max.
Max.
±250
±104
±83
500
278
208
167
±300
±125
±100
758
600
333
250
200
125
±300
±167
±125
±100
758
600
333
250
200
125
Min.
Load
±13
±5
±4
25
14
10
8
±15
±6
±5
38
30
17
13
10
6
±15
±8
±6
±5
38
30
17
13
10
6
676
650
650
685
676
650
676
321
317
313
278
329
317
305
302
309
158
155
151
151
141
155
151
151
151
151
7
20
40
Load
@No
Reflected
Ripple
Current
(mA, Typ.)
Max.
Capacitive
Load
(µF)
470
330
②
Efficiency
(%, Typ.)
@Max.
Load
74
77
77
73
74
77
74
78
79
80
75
76
79
82
83
81
79
81
83
83
74
81
83
83
83
83
1000
30
2200
1000
680
470
1000
470
330
2700
30
2200
1000
680
470
330
1000
680
470
330
110
2700
2200
1000
680
470
330
2013.07.26-A/3
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MORNSUN
WRE_S-3WR2 & WRF_S-3WR2
Page 1 of 7
WRE4805S-3WR2
WRE4812S-3WR2
WRE4815S-3WR2
WRF4803S-3WR2
WRF4805S-3WR2
WRF4812S-3WR2
WRF4815S-3WR2
WRF4824S-3WR2
48
(36-75)
80
±5
±12
±15
3.3
5
12
15
24
±300
±125
±100
758
600
250
200
125
±15
±6
±5
38
30
13
10
6
79
76
76
70
82
78
75
77
7
45
1000
470
330
2700
2200
680
470
330
79
82
82
75
76
80
84
82
Note:①. Absolute maximum rating without damage on the converter, but it isn't recommended;
②.
For dual output converter, the given value is the same for each output.
INPUT SPECIFICATIONS
Item
Test Conditions
5V input
Input Surge Voltage (1sec. max.)
12V input
24V input
48V input
5V input
Start-up Voltage
12V input
24V input
48V input
Input Filter
Ctrl*
Models ON
Models OFF
Min.
-0.7
-0.7
-0.7
-0.7
3.5
4.5
11
24
Typ.
--
--
--
--
4
8
16
33
C Filter
Ctrl open or be insulated
Connect high level voltage, and ensure the current into Ctrl to be 5-10mA
Max.
12
25
50
100
4.5
9
18
36
VDC
Unit
Note: *Please refer to "DESIGN CONSIDERATIONS" as the direction for use of Ctrl.
OUTPUT SPECIFICATIONS
Item
Output Voltage Accuracy
No-load Output Voltage Accuracy
Output Voltage Balance
Line Regulation
Load Regulation
Transient Recovery Time
Transient Response Deviation
Temperature coefficient
Ripple
②
②
Test Conditions
5% to 100% load
①
Min.
--
--
--
--
--
--
--
--
--
--
Typ.
±1
±1.5
±0.5
±0.2
±0.6
0.5
±2.5
±0.02
30
50
Max.
±3
±5
±1
±0.5
±1
3
±5
±0.03
45
100
Unit
Input voltage range
Dual output, balanced loads
Full load, Input voltage from low to high
5% to 100% load
25% load step change
100% load
20MHz Bandwidth
%
ms
%
%/°C
mVp-p
Noise
Output Short Circuit Protection
Continuous, automatic recovery
Note:
①.The
max. no-load output voltage accuracy for WRF1203S-3WR2 and WRF4803S-3WR2 is
±8%;
②.
Ripple and noise tested with "parallel cable" method. See detailed operation instructions at
DC-DC application notes;
The max. output ripple for WRE2405S-3W R2 is 65mVp-p.
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
MTBF
Case Material
Weight
--
Test Conditions
Input-Output, Tested for 1 minute, leakage current less than 1 mA
Input-Output, Test at 500VDC
Input-Output, 100KHz/0.1V
MIL-HDBK-217F@25℃
Min.
3000
1000
--
--
1000
Typ.
--
--
30
250
--
Max.
--
--
50
--
--
Unit
VDC
MΩ
pF
KHz
K hours
Switching Frequency(PFM Mode) 100% load, nominal input voltage
Plastic（UL94-V0）
4.9
--
g
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Test Conditions
Non condensing
Power derating (above85℃, see Figure 5)
Min.
--
-40
Typ.
--
--
Max.
95
85
Unit
%
°C
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
WRE_S-3WR2 & WRF_S-3WR2
2013.07.26-A/3
Page 2 of 7
Storage Temperature
Temp. rise at full load
Lead Temperature
Cooling
Ta=25°C
1.5mm from case for 10 seconds
-55
--
--
--
25
--
125
--
300
°C
Free air convection
EMC SPECIFICATIONS
EMI
CE
RE
ESD
RS
EFT
EMS
Surge
CS
Voltage dips, short and
interruptions immunity
CISPR22/EN55022 CLASS B（Recommended Circuit Refer to Figure1-
②
or Figure 3
）
CISPR22/EN55022 CLASS B (Recommended Circuit Refer to Figure1-
②
or Figure 3)
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
Contact
±4KV/
Air
±8KV
10V/m
±2KV
±4KV
±2KV
3 Vr.m.s
0%-70%
（Recommended
Circuit Refer to Figure1-①）
（Recommended
Circuit Refer to Figure 3）
perf. Criteria B
perf. Criteria A
perf. Criteria B
perf. Criteria B
（Recommended
Circuit Refer to Figure1-① or Figure 3） perf. Criteria B
perf. Criteria A
perf. Criteria B
EMC RECOMMENDED CIRCUIT
FU S E
Vin
+
MO V
GND
TV S
C1
C0
C2
Cd
GND
C trl
D1
R
C tr l
LDM1
LDM2
Vin
+ Vo
EUT
-Vo
(0V)
LO AD
①
②
(Figure1)
CY
③
Recommended external circuit parameters:
Model
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
C2
CY
D1
R
Cd
Vin：5V
--
--
SMCJ13A
680μF/16V
Vin:12V
Vin:24V
Vin:48V
S14K60
56μH
SMCJ90A
330μF/100V
4.7μF/100V
Choose according to practical input current
--
S14K35
--
SMCJ28A
680μF/25V
4.7μF/50V
12μH
4.7μF/50V
1nF/3KV
RB160M-60/1A
Follows:
56μH
SMCJ48A
330μF/50V
4.7μF/100V
R
=
V
C
-
V
D
- 1.0
- 300
I
C
47nF/100V
Note: 1.In Figure 1, part
①
is EMS recommended external circuit, part
②
is EMI recommended external circuit. Choose according to requirements;
2. V
C
is the voltage to GND from Ctrl, V
D
is the forward conduction voltage drop of D1,I
C
is the current through Ctrl pin which is normally 5-10mA, the external
circuit of Ctrl is as shown in figure1-③;
3. If there is no recommended parameters, the model no require the external component.
EMC RECOMMENDED CIRCUIT PCB LAYOUT
DUAL
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WRE_S-3WR2 & WRF_S-3WR2
2013.07.26-A/3
Page 3 of 7
SINGLE
(Figure 2)
Note: The pad space between input and output GND (CY) must≥2mm.
EMC MODULE APPLICATION CIRCUIT
FU SE
+Vin
+Vin
C t rl
D1
Cd
-Vin
-Vin
-Vo
GN D
R
C trl
-Vo
(0V)
Vin
+Vo
EUT
Lo ad
+
C
FT- A/B X1 D
+Vo
FT-A/BX1D is MORNSUN’s EFT suppresser
For Nominal Voltage<48V, C≥330uF/50V
For Nominal Voltage =48V, C≥330uF/100V
(Figure 3)
EMC MODULE RECOMMENDED CIRCUIT PCB LAYOUT
DUAL
SINGLE
(Figure 4)
EMI TEST WAVEFORM (RECOMMENDED CIRCUIT REFER TO FIGURE 1-②)
WRE2415S-3WR2 CE(Class B, Positive line)
WRE2415S-3WR2 CE(Class B, Negative line)
The copyright and authority for the interpretation of the products are reserved by
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WRE_S-3WR2 & WRF_S-3WR2
2013.07.26-A/3
Page 4 of 7
WRF1205S-3WR2 CE(Class B, Positive line)
WRF1205S-3WR2 CE(Class B, Negative line)
PRODUCT TYPICAL PERFORMANCE CURVE
Tolerance Envelope Graph
O ut put Pow er P e rce nt(% )
120
100
80
60
Safe Operating Area
40
20
0
-40
0
40
85 105 120
Temperature Derating Graph
Output Current Percent(%)
Ambient Temp.(
℃
)
(Figure 5)
Efficiency VS Input Voltage curve
(Full Load)
WRE2415S-3WR2
100
95
90
85
80
75
70
65
60
55
50
18
20
22
24
26
28
30
32
34
36
Efficiency VS Output Load curve
WRE2415S-3WR2
(Vin=Vin-nominal)
100
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90
100
Efficiency(%)
Efficiency(%)
Input Voltage(V)
Total Output Current (%)
Efficiency VS Input Voltage curve
(Full Load)
WRF1205S-3WR2
100
95
Efficiency VS Output Load curve
WRF1205S-3WR2
(Vin=Vin-nominal)
100
90
80
70
60
50
40
30
20
10
0
10
20
30
40
50
60
70
80
90 100
75
70
65
60
55
50
9
10
11
12
13
14
15
16
17
18
Input Voltage(V)
Efficiency(%)
Efficiency(%)
90
85
80
Total Output Current (% )
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
WRE_S-3WR2 & WRF_S-3WR2
2013.07.26-A/3
Page 5 of 7
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