WRB0503T-2W Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – 3W SINGLE OUTPUT DC/DC CONVERTER

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
TYPICAL CHARECTERISTICS
Temperature Derating Graph
FOOTPRINT DETAILS
Operating Temp.( C )
242 32 2
16151 41 3
(Top Vie w)
123
9 101 11 2
P in
22 , 2 3
2,3
14
16
Oth ers
OUTLINE DIMENSIONS
32.5
[1.28]
27.9
[1.10]
Fu ncti on
Vin
GND
+Vo
0V
NC
8.0
[0.31]
7.5
[0.30]
R1.5
[R0.06]
(Top View)
2.5
[0.10]
1.5
[0.06]
0.3
[0.01]
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
Vout
Cin
DC DC
GND
0V
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
Cin
Cout
(0~70℃ )
Cout
(-40~85℃)
5V&12V
24V&48V
100uF
100uF
(electrolytic
22uF _capacitor)
47uF
(tantalum
capacitor)
Recommended Reflow Soldering Profil
e
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)
Ip
Input Voltage
Range
Input Voltage (V)
No parallel connection or plug and play.
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