WRE_S - 1WR2 & WRF_S-1WR2 Series
1W
，
WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
FEATURES
●
Ultra-Miniature SIP Package
●
2:1 wide input voltage range
●
Operating temperature range: -40°C ~ +85°C
●
3KVDC isolation
●
Short circuit protection(automatic recovery)
●
External On/Off control
●
High Power Density
APPLICATION
The WRE_S-1WR2 & WRF_S-1WR2 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) Input and output isolation
≤3KVDC;
3) Regulated and low ripple noise is required.
Such as: industrial control, telecommunication etc.
Patent Protected RoHS
PART NUMBER SYSTEM
WRF2405S-1WR2
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
SELECTION GUIDE
Input Voltage(VDC)
Model
Nominal
(Range)
Max.
①
Output
Voltage
(VDC)
±5
±12
±15
5
12
15
±5
±12
±15
3.3.
5
9
12
15
±5
±12
±15
3.3
5
12
15
24
±5
±12
Output Current (mA) Input Current (mA)(typ.)
@Max.
Max.
±100
±42
±33
200
83
67
±100
±42
±33
303
200
111
83
67
±100
±42
±33
303
200
83
67
42
±100
±42
±33
303
200
Min.
Load
±5
±2
±2
10
4
3
±5
±2
±2
15
10
6
4
3
±5
±2
±2
15
10
4
3
2
±5
±2
±2
15
10
274
263
267
278
263
267
107
103
104
112
108
106
104
104
52
52
52
56
54
51
53
54
27
26
26
28
27
4
6
12
25
Load
@No
Reflected
Ripple
Current
(mA,typ.)
Max.
Capacitive
②
Load (µF)
1000
470
330
2200
1000
680
1000
470
330
2700
2200
1800
1000
680
1000
470
330
2700
2200
1000
680
470
1000
470
Efficiency
(%, typ.)
@Max.
Load
73
76
75
72
76
75
78
81
80
75
77
79
80
80
80
80
80
75
77
81
79
77
76
80
80
75
76
WRE0505S-1WR2
WRE0512S-1WR2
WRE0515S-1WR2
WRF0505S-1WR2
WRF0512S-1WR2
WRF0515S-1WR2
WRE1205S-1WR2
WRE1212S-1WR2
WRE1215S-1WR2
WRF1203S-1WR2
WRF1205S-1WR2
WRF1209S-1WR2
WRF1212S-1WR2
WRF1215S-1WR2
WRE2405S-1WR2
WRE2412S-1WR2
WRE2415S-1WR2
WRF2403S-1WR2
WRF2405S-1WR2
WRF2412S-1WR2
WRF2415S-1WR2
WRF2424S-1WR2
WRE4805S-1WR2
WRE4812S-1WR2
WRE4815S-1WR2
WRF4803S-1WR2
WRF4805S-1WR2
48
(36-75)
80
24
(18-36)
40
12
(9-18)
20
5
(4.5-9)
11
30
40
55
±15
3.3
5
70
330
2700
2200
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Page 1 of 7
WRF4812S-1WR2
WRF4815S-1WR2
48
(36-75)
80
12
15
83
67
4
3
26
26
4
70
1000
680
81
80
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 *
Noise*
Output Short Circuit Protection
Test Conditions
5% to 100% load
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
Min.
--
--
--
--
--
--
--
--
--
--
Typ.
±1
±1.5
±0.3
±0.2
±0.4
0.5
±2.5
±0.02
30
50
Max.
±3
±5
±0.5
±0.5
±0.75
2
±5
±0.03
50
100
ms
%
%/°C
mVp-p
%
Unit
Continuous, automatic recovery
Note:*Ripple and noise tested with "parallel cable" method. See detailed operation instructions at
DC-DC application notes.
COMMON SPECIFICATIONS
Item
Isolation Voltage
Isolation Resistance
Isolation Capacitance
Test Conditions
Input-Output, Tested for 1 minute, leakage current less than 1 mA
Input-Output, Test at 500VDC
Input-Output,100KHz/0.1V
Min.
3000
1000
--
--
1000
Typ.
--
--
30
200
--
Max.
--
--
50
--
--
Unit
VDC
MΩ
pF
KHz
K hours
Switching Frequency(PFM Mode) 100% load, Nominal Input voltage
MTBF
Case Material
Weight
MIL-HDBK-217F@25℃
Plastic（UL94-V0）
--
4.9
--
g
ENVIRONMENTAL SPECIFICATIONS
Item
Storage Humidity
Operating Temperature
Storage Temperature
Temp. rise at full load
Lead Temperature
Cooling
Ta=25°C
1.5mm from case for 10 seconds
Test Conditions
Non condensing
Power derating (above85℃, see Figure 5)
Min.
--
-40
-55
--
--
Typ.
--
--
--
25
--
Max.
95
85
125
--
300
°C
Unit
%
Free air convection
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MORNSUN
WRE_S-1WR2 & WRF_S-1WR2
2013.07.25-A/3
Page 2 of 7
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 B (Recommended Circuit Refer to Figure1-② or Figure 3)
CLASS B (Recommended Refer to Figure1-②or Figure 3)
Contact
±4KV
10V/m
±2KV
(Recommended Circuit Refer to Figure1-①)
±4KV
(Recommended Circuit Refer to Figure 3)
±2KV
(Recommended Circuit Refer to Figure1-① or Figure 3)
3 Vr.m.s
0%-70%
perf. Criteria B
perf. Criteria A
perf. Criteria B
perf. Criteria B
perf. Criteria B
perf. Criteria A
perf. Criteria B
EMC RECOMMENDED CIRCUIT
FUSE
Vi n
+
MO V
G ND
TVS
C1
C0
C2
Cd
G ND
Ctrl
D1
R
Ctrl
LDM1
LDM2
Vi n
+Vo
EUT
-Vo
(0V)
LO AD
①
②
CY
③
(Figure1)
Recommended external circuit param eters:
Model
Vin:5V
FUSE
MOV
LDM1
TVS
C0
C1
LDM2
C2
CY
D1
R
Cd
Follows:
4.7μF/50V
1nF/3KV
RB160M-60/1A
--
--
SMCJ13A
680μF/16V
Vin:12V
Vin:24V
Vin:48V
Choose according to practical input current
--
--
SMCJ28A
680μF/25V
4.7μF/50V
12μH
4.7μF/100V
S14K35
56μH
SMCJ48A
330μF/50V
S14K60
56μH
SMCJ90A
330μF/100V
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
SINGLE
(Figure 2)
Note: The pad space between input and output GND (CY) must≥2mm.
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Page 3 of 7
EMC MODULE APPLICATION CIRCUIT
FU SE
+Vin
+Vin
+Vin
D1
Cd
-Vin
-Vin
-Vo
-Vin
-Vo
GN D
R
C trl
-Vo
(0V )
V in
+Vo
EUT
L oa d
FS- A0 1 D
+Vo
FT- A/B X 1 D
+Vo
C trl
FS-A01D,FT-A/BX1D are MORNSUN’s EFT suppressers
(Figure 3)
EMC MODULE RECOMMENDED CIRCUIT PCB LAYOUT
DUAL
SINGLE
(Figure 4)
EMI TEST WAVEFORM (RECOMMENDED CIRCUIT FINGURE 1-②)
WRE2405S-1WR2 CE(Class B, Positive line)
WRE2405S-1WR2 CE(Class B, Negative line)
WRF2405S-1WR2 CE(Class B, Positive line)
WRF2405S-1WR2 CE(Class B, Negative line)
PRODUCT TYPICAL PERFORMANCE CURVE
Tolerance Envelope Graph
Output Pow er Perce nt(%)
Temperature Derating Graph
12 0
10 0
80
60
Safe Op eratin g Area
40
20
0
-40
0
40
85 105 12 0
Output Curren t Percent(%)
Amb ient Temp.(
℃
)
(Figure 5)
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WRE_S-1WR2 & WRF_S-1WR2
2013.07.25-A/3
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Efficiency VS Input Voltage curve
(Full Load)
WRE2405S-1WR2
100
95
90
85
80
75
70
65
60
55
50
18
21
24
27
30
33
36
Efficiency VS Output Load curve
(Vin=Vin-nominal)
WRE2405S-1WR2
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)
WRF2405S-1WR2
100
95
90
85
80
75
70
65
60
55
50
18
21
24
27
30
33
36
Efficiency VS Output Load curve
(Vin=Vin-nominal)
WRF2405S-1WR2
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 (% )
OUTLINE DIMENSIONS, RECOMMENDED FOOTPRINT & PACKAGING
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2013.07.25-A/3
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