WRA_D-10W & WRB_D-10W Series
10W, 2:1 WIDE INPUT ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DC-DC CONVERTER
multi-country patent protection
RoHS
FEATURES
Wide (2:1) Input Range
DIP package
Efficiency up to 86%
1.5KVDC Input/Output Isolation
Short Circuit Protection(automatic recovery)
Operating Temperature: -40°C to +85°C
Metal Shielding Package
No Heat Sink Required
Industry Standard Pinout
MTBF>1,000,000 hours
RoHS Compliance
PRODUCT PROGRAM
Part
Number
WRA0505D-10W
WRA0512D-10W
WRA0515D-10W
WRB0505D-10W
WRB0512D-10W
WRB0515D-10W
WRA1205D-10W
WRA1212D-10W
WRA1215D-10W
WRB1203D-10W
WRB1205D-10W
WRB1212D-10W
WRB1215D-10W
WRB1224D-10W
WRA2405D-10W
WRA2412D-10W
WRA2415D-10W
WRB2403D-10W
WRB2405D-10W
WRB2412D-10W
WRB2415D-10W
WRB2424D-10W
WRA4805D-10W
WRA4812D-10W
WRA4815D-10W
WRB4803D-10W
WRB4805D-10W
WRB4812D-10W
WRB4815D-10W
WRB4824D-10W
Input
Voltage (VDC)
Max*
Nominal Range
Voltage
(VDC)
±5
±12
±15
5
12
15
±5
±12
±15
3.3
5
12
15
24
±5
±12
±15
3.3
5
12
15
24
±5
±12
±15
3.3
5
12
15
24
Output
Current
Max
±1000
±416
±333
2000
833
666
±1000
±416
±333
3030
2000
833
666
416
±1000
±416
±333
3030
2000
833
666
416
±1000
±416
±333
3030
2000
833
666
416
(mA)
Min
±100
±42
±33
200
83
66
±100
±42
±33
300
200
83
66
42
±100
±42
±33
300
200
83
66
42
±100
±42
±33
300
200
83
66
42
Efficiency
(%, Typ)
76
80
82
76
80
82
80
82
84
77
80
82
84
85
82
84
86
78
82
84
85
86
82
84
85
78
82
83
85
86
5
4.5-9
11
12
9-18
20
APPLICATIONS
The WRA_D-10W & WRB_D-10W 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.
These products apply to:
1) Where the voltage of the input power supply is
wide range (voltage range≤2:1);
2) Where isolation is necessary between input
and output(Isolation Voltage
≤
1500VDC);
3) Where the regulation of the output voltage and
the output ripple noise are demanded.
24
18-36
40
48
36-72
80
*Input voltage can’t exceed this value, or will cause the permanent damage.
Note: The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
Operation under 10% load will not damage the converter; However, they may not meet all specification
listed.
MODEL SELECTION
WRA0515D-10W
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
OUTPUT SPECIFICATION
Item
Output Power
Positive Voltage Accuracy
Negative Voltage Accuracy
Load Regulation
Line Regulation(at full load)
Temperature Drift(Vout)
Ripple**
Noise**
Switching Frequency
Test conditions
See below products program
Refer to recommended circuit
Refer to recommended circuit
From 10% To 100% load
Input voltage from low to high
Refer to recommended circuit
20MHz bandwidth
20MHz bandwidth
100% load, Input voltage range
Min
1
Typ
±1
±3
±0.5
±0.2
20
85
300
Max
10
±3
±5
±1*
±0.5
±0.03
50
150
Units
W
%
%/°C
mVp-p
KHz
MORNSUN Science & Technology co.,Ltd.
Address: 2th floor 6th building, Huangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax:86-20-38601272
Http://www.mornsun-power.com
*Dual output models unbalanced load:
±5%.
**Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of Power
Converter section, application notes.
Note:
1. All specifications measured at TA=25°C, humidity<75%, nominal input voltage and rated output load unless
otherwise specified.
2. See below recommended circuits for more details.
MORNSUN reserves the copyright
Specifications subject to change without notice.
WRA_D-10W & WRB_D_10W
A/2-2008
Page 1 of 2
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Isolation capacitance
Test conditions
Tested for 1 minute and 1 mA max
Test at 500VDC
Input/Output
Min
1500
1000
Typ
Max
Units
VDC
MΩ
pF
Recommended Circuit
All the WRA_D-10W & WRB_D-10W Series
have been tested according to the following
recommended
testing
circuit
before
leaving
factory. This series should be tested under load.
Never be tested under no load (see Figure 1).
1000
COMMON SPECIFICATIONS
Item
Test Conditions
Storage Humidity
Operating Temperature
Storage Temperature
Temp. Rise at Full Load
Lead Temperature
1.5mm from case for 10 seconds
No-load power consumption
Cooling
Short Circuit Protection
Case Material
MTBF
Weight
Min
-40
-55
40
300
500
mW
Free Air Convection
Continuous, automatic recovery
Aluminium alloy
1000
K hours
23.5
g
GND
Typ
Max
95
85
125
Units
%
°C
Vin
C in
+Vout
DC
DC
0V
-Vout
GND
Single Output
Vin
Cin
+Vout
DC
DC
0V
(Figure 1)
If you want to further decrease the input/output
ripple, you can increase capacitance properly or
choose capacitors with low ESR. However, the
capacitance of the output filter capacitor must be
proper. If the capacitance is too big, a startup
problem might arise. For every channel of output,
provided the safe and reliable operation is
ensured, the greatest capacitance of its filter
capacitor sees (Table 1). General:
Cin:
5V&12V
24V&48V
Cout: 10μF/100mA
Output Extemal Capacitor Table(Table 1)
Single Vout
Cout
Dual Vout
Cout
(VDC)
(uF)
(VDC)
(uF)
3.3
2200
±5
680
5
1000
±12
330
12
470
±15
220
15
330
-
-
24
220
-
-
Input Current
When it is used in unregulated power supply,
be sure that the fluctuating range of the power
supply and the rippled voltage do not exceed the
module standard. Input current of power supply
should afford the startup current of this kind of
DC/DC module (See figure 2), General:
100μF
10μF-47μF
TYPICAL CHARECTERISTICS
Temperature Derating Graph
Safe Operating Area
Operating Temp.(
C
)
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
First Angle Projection
7.62
5.08
(0.200) (0.300)
10.16 10.16
(0.400)(0.400)
25.40(1.000)
3
2 Bottom
4
1 View
5
RECOMMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch),
diameter:1.20mm(0.047inch)
Dual Output
5
1
2
4
3
50.80(2.000)
11.20
(0.441)
4.10
Single Output
5
1
2
3
Input Current(A)
Side View
Ip
≤1.4*Iin-max
Ip
20.32(0.800)
FOOTPRINT DETAILS
Pin
1
Note:
Unit:mm(inch)
Pin diameter:0.80mm(0.031inch)
Pin diameter tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
2
3
4
5
Single
GND
Vin
+Vo
No Pin
0V
Dual
GND
Vin
+Vo
COM
-Vo
Input Voltage
Range
Input Voltage (V)
No parallel connection or plug and play.
APPLICATION NOTE
Requirement on Output Load
In order to ensure the product operate efficiently and reliably, in addition to a max load (namely
full load), a minimum load is specified for this kind of DC/DC converter. Make sure the specified
range of input voltage is not exceeded, the minimum output load no less than 10% load. If the
actual load is less than the specified minimum load, the output ripple may increase sharply while
its efficiency and reliability will reduce greatly. If the actual output power is very small, please add
an appropriate resistor as extra loading, or contact our company for other lower output power
products.
MORNSUN reserves the copyright
Specifications subject to change without notice.
WRA_D-10W & WRB_D_10W
A/2-2008
Page 2 of 2
Analog electronics
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