WRA0505D-10W Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – DUAL/SINGLE OUTPUT DC-DC CONVERTER

ISOLATION SPECIFICATIONS
Item
Test conditions
Min Typ Max Units
Isolation voltage
Isolation resistance
Tested for 1 minute and 1 mA max 1500
Test at 500VDC
1000
VDC
MΩ
Isolation capacitance
Input/Output
1000
pF
COMMON SPECIFICATIONS
Item
Storage Humidity
Test Conditions
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 Typ Max Units
95
%
-40
85
-55
125
°C
40
300
500
mW
Free Air Convection
Continuous, automatic recovery
Aluminium alloy
1000
K hours
23.5
g
TYPICAL CHARECTERISTICS
Temperature Derating Graph
Safe Operating Area
Operating Temp.( C )
OUTLINE DIMENSIONS & FOOTPRINT DETAILS
First Angle Projection
3
2
1
Bottom
View
4
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch),
diameter:1.20mm(0.047inch)
Dual Output
5
5
1
2
4
3
50.80(2.000)
Single Output
Side View
20.32(0.800)
5
1
2
3
Note:
Unit:mm(inch)
Pin diameter:0.80mm(0.031inch)
Pin diameter tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
FOOTPRINT DETAILS
Pin Single
Dual
1
GND
GND
2
Vin
Vin
3
+Vo
+Vo
4
No Pin
COM
5
0V
-Vo
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.
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).
Vin
+Vout
Cin
DC DC
0V
GND
-Vout
Single Output
Vin
Cin
DC DC
+Vout
GND
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 100μF
24V&48V 10μF-47μF
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:
Ip ≤1.4*Iin-max
Ip
Input Voltage
R an g e
Input Voltage (V)
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice. WRA_D-10W & WRB_D_10W
A/2-2008 Page 2 of 2