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IB0505S-2W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd.

Part # IB0505S-2W
Description  SINGLE OUTPUT DC-DC CONVERTER
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Manufacturer  MORNSUN [MORNSUN Science& Technology Ltd.]
Direct Link  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

IB0505S-2W Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd.

  IB0505S-2W Datasheet HTML 1Page - MORNSUN Science& Technology Ltd. IB0505S-2W Datasheet HTML 2Page - MORNSUN Science& Technology Ltd.  
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MORNSUN reserves the copyright
Specifications subject to change without notice.
IB_S-2W
A/2-2008
Page 2 of 2
OUTPUT SPECIFICATIONS
Item
Test Conditions
Min
Typ
Max
Units
Storage humidity
95
%
Operating temperature
-40
85
Storage temperature
-55
125
Temp. rise at full load
40
58
Lead temperature
1.5mm from case for 10 seconds
300
°C
Short circuit protection
Continuous
Cooling
Free air convection
Case material
Plastic(UL94-V0)
MTBF
3500
K hours
Weight
2.8
g
TYPICAL TEMPERATURE CURVE
Operating Temp.(
)
C
OUTLINE DIMENSION & PIN CONNECTIONS
FOOTPRINT DETAILS
Pin
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch),
diameter:1.00mm(0.039inch)
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin section tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
First Angle Projection
1 2
4
6
(0.079)
(0.200)
1
2
4
6
Vin
GND
0V
+Vo
Function
5.08
(Bottom View)
(Side View)
APPLICATION NOTE
Requirement on output load
To ensure this module can operate efficiently and reliably, During operation, the minimum
output load is not less than 10% of the full load, and that this product should never be
operated under no load! If the actual output power is very small, please connect a resistor
with proper resistance at the output end in parallel to increase the load, or use our
company
’s products with a lower rated output power.
Recommended circuit
If
you
want
to
further
decrease
the
input/output ripple, an
“LC” filtering network may
be connected to the input and output ends of the
DC/DC converter, see (Figure 1).
L
Vin
GND
+Vo
0V
DC
Cin
L
DC
Cout
(Figure 1)
It should also be noted that the inductance
and the frequency of the
“LC” filtering network
should be staggered with the DC/DC frequency
to avoid mutual interference.
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).
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
(VDC)
Cin
(uF)
Vout
(VDC)
Cou
(uF)
5
4.7
5
4.7
12
2.2
-
-
15
1
-
-
24
0.47
-
-
It
’s not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
Overload Protection
Under
normal
operating
conditions,
the
output
circuit
of
these
products
has
no
protection against over-current. The simplest
method is to connect a self-recovery fuse in
series at the input end or add a circuit breaker
to the circuit.
Input Over-voltage Protection Circuit
The simplest device for input over-voltage
protection is a linear voltage regulator with
overheat protection that is connected to the
input end in series (Figure 2).
Vin
GND
REG
+Vo
DC
DC
0V
(Figure 2)
When the environment temperature is higher
than 71
°C, the product output power should
be less then 60% of the rated power.
No parallel connection or plug and play.


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