WRB_T-3W Series
WIDE INPUT ISOLATED & REGULATED
3W SINGLE OUTPUT DC/DC CONVERTER
FEATURES
●
Efficiency up to 81%
●
Operating Temperature:
-40°C~+85°C
●
1500VDC Isolation
●
UL94-V0 Package
●
No External Component Required
●
Industry Standard Pinout
●
MTBF>1,000,000 hours
PRODUCT PROGRAM
Part
Number
WRB0503T-2W
WRB0505T-3W
WRB0509T-3W
WRB0512T-3W
WRB0515T-3W
WRB1203T-2W
WRB1205T-3W
WRB1209T-3W
WRB1212T-3W
Input
Voltage (VDC)
Nominal
Range
Max
Max
600
600
Output
Current (mA)
Min
60
60
33
25
20
60
60
33
25
20
90
60
33
25
20
90
60
33
25
20
Voltage
(VDC)
3.3
5
9
12
15
3.3
5
9
12
15
3.3
5
9
12
15
3.3
5
9
12
15
Efficiency
(%, Typ)
66
68
70
70
71
72
75
77
78
79
73
76
78
80
80
73
77
78
80
81
5
4.5~9
11
330
250
200
600
600
12
9~18
22
330
250
200
900
600
APPLICATIONS
The WRB_T-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 Voltage≤1500VDC);
3) Where the regulation of the output voltage
and the output ripple noise are demanded.
WRB1215T-3W
WRB2403T-3W
WRB2405T-3W
WRB2409T-3W
WRB2412T-3W
WRB2415T-3W
WRB4803T-3W
WRB4805T-3W
WRB4809T-3W
WRB4812T-3W
WRB4815T-3W
24
18~36
40
330
250
200
900
600
48
36~72
80
330
250
200
MODEL SELECTION
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Isolation Capacitance
Test conditions
Flash tested for 60 seconds and 1mA
Test at 500VDC
Input/Output
Min
1500
1000
100
Typ
Max
Units
VDC
MΩ
PF
WRB2405T-3W
Rated Power
Package Style
Output Voltage
Input Voltage
Product Series
OUTPUT SPECIFICATIONS
Item
Output Power
Output Voltage Accuracy
Load Regulation
Voltage Regulation
Temperature Drift(Vout)
Ripple
Noise
Switching Frequency
Test Conditions
See Below Products Program
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, Nominal Input Voltage
Min
0.3
Typ
±1
±0.1
±0.2
30
50
300(PFM)
Max
3
±3
±1
±0.5
0.03
50
100
Units
W
%
%/
°C
mVp-p
KHZ
MORNSUN Science& Technology Ltd.
Address: 2th floor 6th building, Huangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
Http://www.mornsun-power.com
Note:
1.All specifications measured at T
A
=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
For any design change and upgrade, we will not make any prior notification
A/1-2007
Page 1 of 2
COMMON SPECIFICATIONS
Output Short Circuit Protection
Temperature Rise at Full Load
Cooling
Operating Temperature Range
Storage Temperature Range
Lead Temperature***
Storage Humidity Range
MTBF
Note: 217
℃
(70 sec)
Continuous ,Automatic Recovery
15°C (TYP) 35°C(max)
Free Air Convection
-40°C~+85°C
-50°C ~+125°C
245°C Max. (10sec)
≤
95%
>1,000,000 hours
Recommended Circuit
All the WRB_T-3W Series have been tested
according to the following recommended testing
circuit before leaving factory. This series should
be tested under load(Figure 1).
Vin
Cin
GND
Vout
DC
DC
0V
TYPICAL CHARECTERISTICS
Temperature Derating Graph
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(Table 1)
External Capacitor Table(Table 1)
Vin
5V&12V
24V&48V
Cin
100uF
22uF
Cout
(0~70
℃
)
100uF
(electrolytic
capacitor)
Cout
(-40~85
℃
)
47uF
(tantalum
capacitor)
Recommended Reflow Soldering Profil
e
Operating Temp.(
C
)
FOOTPRINT DETAILS
242 32 2
16151 4 3
1
P in
22,23
Fu ncti on
Vin
GND
+Vo
0V
NC
(Top Vie w)
2,3
14
16
Input Current
Nominal input voltage range.The input current
of the power supply must be sufficient to the
startup current (Ip) of the DC/DC module (Figure
2)
Input Current(A)
1 2 3
9 101 1 2
1
Oth ers
OUTLINE DIMENSIONS
32.5
[1.28]
27.9
[1.10]
8.0
[0.31]
7.5
[0.30]
Ip
Input Voltage
Range
22.5min
[0.886]
19.2
[0.75]
20.5
[0.81]
26.4
[1.04]
(Top View)
1.5
[0.06]
19.7
[0.78]
R1.5
[R0.06]
Input Voltage (V)
No parallel connection or plug and play.
0.3
[0.01]
2.5
[0.10]
1.5
[0.06]
0.15
Note: Unit: mm(inch); Tolerance:
±
0.25mm.
APPLICATION NOTE
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%
full load,
If the actual load is less than the specified minimum load, the output ripple may
increase sharply. 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
For any design change and upgrade, we will not make any prior notification
A/1-2007
Page 2 of 2
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