WRA_(M)P-3W & WRB_(M)P-3W Series
3W, 2:1 WIDE INPUT, ISOLATED & REGULATED
DUAL/SINGLE OUTPUT DIP DC-DC CONVERTER
Patent Protection
FEATURES
●
2:1 wide input voltage range
●
DIP package
●
Efficiency up to 81%
●
1500VDC isolation
●
Short circuit protection
(automatic recovery)
●
Operating temperature: -40°C to +85°C
●
Internal SMD construction
●
No heat sink required
●
MTBF>1,000,000 hours
●
RoHS Compliance
RoHS
PRODUCT PROGRAM
Input
Part
Number
WRA0505(M)P-3W
WRA0509(M)P-3W
WRA0512(M)P-3W
WRA0515(M)P-3W
WRB0505(M)P-3W
WRB0509(M)P-3W
WRB0512(M)P-3W
WRB0515(M)P-3W
★
WRB0524(M)P-3W
Output
Max*
Voltage
(VDC)
±5
±9
±12
±15
Current (mA)
Max.
±300
±167
±125
±100
600
333
250
200
125
±300
±167
±125
±100
600
333
250
200
125
±300
±167
±125
±100
909
600
333
250
200
125
±300
±167
±125
±100
±62
909
600
333
250
200
125
Min.
±30
±16
±12
±10
60
33
25
20
12
±30
±16
±12
±10
60
33
25
20
12
±30
±16
±12
±10
90
60
33
25
20
12
±30
±16
±12
±10
±6
90
60
33
25
20
12
68
70
72
73
68
70
72
73
74
74
76
78
79
74
76
78
77
80
77
78
79
80
74
77
78
79
80
81
77
78
79
80
81
74
77
78
79
80
81
Efficiency
(%, Typ.)
Voltage (VDC)
Nominal
Range
5
4.5-9
11
5
9
12
15
24
±5
±9
±12
±15
APPLICATIONS
The WRA_(M)P-3W & WRB_(M)P-3W 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
≤1500VDC);
3) Where the regulation of the output voltage and
the output ripple noise are dem anded.
WRA1205(M)P-3W
WRA1209(M)P-3W
WRA1212(M)P-3W
WRA1215(M)P-3W
WRB1205(M)P-3W
WRB1209(M)P-3W
WRB1212(M)P-3W
WRB1215(M)P-3W
WRB1224(M)P-3W
WRA2405(M)P-3W
WRA2409(M)P-3W
WRA2412(M)P-3W
WRA2415(M)P-3W
WRB2403(M)P-3W
WRB2405(M)P-3W
WRB2409(M)P-3W
WRB2412(M)P-3W
24
18-36
40
12
9-18
22
5
9
12
15
24
±5
±9
±12
±15
3.3
5
9
12
15
24
±5
±9
±12
±15
±24
MODEL SELECTION
WRB2415(M)P-3W
WRB2424(M)P-3W
WRA4805(M)P-3W
WRA4809(M)P-3W
WRA4812(M)P-3W
WRA4815(M)P-3W
WRA4824(M)P-3W
WRB4803(M)P-3W
WRB4805(M)P-3W
WRB4809(M)P-3W
WRB4812(M)P-3W
WRB4815(M)P-3W
★
WRB4824(M)P-3W
WRA2412MP-3W
Ra ted Po wer
P ackag e S ty le
O utp ut Voltag e
In put Volta ge
P rodu ct Se rie s
48
36-72
80
3.3
5
9
12
15
24
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: 86-20-28203030
Fax:86-20-28203068
Http://www.mornsun-power.com
* Input voltage can’t exceed this value, or will cause the permanent damage.
★
Still not design.
Note: Metal package style’s series is WRA_MP-3W & WRB_MP-3W.
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
WRA_(M)P-3W & WRB_(M)P-3W
A/4-2010
Page 1 of 3
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Isolation capacitance
Test Conditions
Tested for 1 minute and 1mA max
Test at 500VDC
Input/Output, 100KHz/1V
Min.
1500
1000
85
Typ.
Max.
Units
VDC
MΩ
pF
TYPICAL TEMPERATURE CURVE
COMMON SPECIFICATIONS
Item
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
No-load power
Cooling
Short Circuit Protection
Case Material
MTBF
Weight
Free Air Convection
Continuous, Automatic Recovery
P: Plastic (UL94-V0)
MP: Stainless steel
1000
14
K hours
g
1.5mm from case for 10 seconds
0.2
-40
-55
15
300
W
Operating Temp.(
C
)
100
Test Conditions
Min.
Typ.
Max.
95
85
125
Units
%
°C
OUTPUT SPECIFICATIONS
Item
Output power
Positive voltage accuracy
Refer To Recommended Circuit
10% to 100% load WRB_(M)P-3W
10% to 100% load WRA_(M)P-3W*
Input voltage from low to high
Refer to recommended circuit
20MHz Bandwidth
100% load, input voltage range
50
300
Negative voltage accuracy Refer To Recommended Circuit
Load regulation
Line regulation
Temperature drift(Vout)
Noise & Ripple**
Switching Frequency
Test Conditions
Min.
0.3
±1
±3
±0.5
±0.5
±0.2
Typ.
Max.
3
±3
±5
±0.75
±1.0
±0.5
±0.03
100
%/°C
mVp-p
KHz
%
Units
W
RECOMMENDED CIRCUIT
Vin
Cin
+Vo
Cout
DC
DC
Cout
0V
- Vo
G ND
S ing le Ou tp ut
Vin
Cin
+Vo
DC
DC
Cout
G ND
0V
* 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.
(Figure 1)
Input Current(A)
APPLICATION NOTE
1) 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.
2) Recommended circuit
All the WRA_(M)P-3W & WRB_(M)P-3W 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).
If you want to further decrease the input/output ripple, you can increase capacitance properly
or choose capacitors with low ESR. However, the capacitance should not be too high, or may
cause start-up problem. If you want to use the products in high EMI, please choose our metal
packaged products (WRA_MP-3W/WRB_MP-3W). 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
100μF
24V&48V
10μF~47μF
Cout: 10μF/100mA
3) Input current
While using unstable power source, please ensure the output voltage and ripple voltage do
not excced indexes of the converter. The preceding power source must be able to provide for
converter sufficient starting current Ip (Figure 2).
General: Ip
≤1.4*Iin-max
4) No parallel connection or plug and play
Ip
Input Voltage
Range
Input Voltage (V)
(Figure 2)
External Capacitor Table (Table 1)
Dual Vout
Cout
Single Vout
Cout
(VDC)
(uF)
(VDC)
(uF)
3.3
2200
±5
680
5
9
12
15
24
1000
680
470
330
220
±9
±12
±15
±24
-
470
330
220
100
-
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
WRA_(M)P-3W & WRB_(M)P-3W
A/4-2010
Page 2 of 3
OUTLINE DIMENSIONS & PIN CONNECTIONS
MECHANICAL DIMENSIONS
31.80 [1.252]
∅
1.00 [0.039]
2
3
9 10 11
23 22
16 15 14
RECOMMENDED FOOTPRINT(TOP VIEW)
20.30 [0.800]
20.00 [0.787]
15.24 [0.600]
(Bottom View)
23 22
16 15 14
15.24 [0.600]
2.54 [0.100]
2
3
9 10 11
WR_MP-3W
WR_P-3W
2.54 [0.100]
22.86 [0.900]
2.54 [0.100]
22.86 [0.900]
4.47 [0.176]
4.10 [0.161]
(Side View)
9.50
[0.374]
10.00
[0.394]
0.50 [0.020]
WR_MP-3W
TUBE OUTLINE DIMENSIONS
22.70 [0.894]
11.60 [0.457]
FOOTPRINT DETAILS
Single
Dual
Pin
2,3
GND
GND
NC
9
0V
NC
10,15
NC
-Vo
NC
11
14
+Vo
+Vo
16
0V
0V
22,23
Vin
Vin
NC: No connection
0.60 [0.024]
18.20 [0.717]
Note:
Unit:mm[inch]
Pin section tolerances: 0.10mm[ 0.004inch]
General tolerances: 0.25mm[ 0.010inch]
WR_P-3W
11.30 [0.445]
Note:
Unit :mm[inch]
General tolerances:
0.50mm[ 0.020inch]
L=530mm[20.866inch] Tube Quantity: 15pcs
L=220mm[8.661inch] Tube Quantity: 6pcs
Note:
1. The load shouldn't be less than 10%, otherwise ripple will increase dramatically.
2. Operation under 10% load will not damage the converter; However, they may not meet all specification listed.
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 the test methods of indications are based on corporate standards.
5. Only typical models listed, other models may be different, please contact our technical person for more details.
The copyright and authority for the interpretation of the products are reserved by
MORNSUN
Specifications subject to change without notice.
WRA_(M)P-3W & WRB_(M)P-3W
A/4-2010
Page 3 of 3
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