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G0512S-1W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd.

Part No. G0512S-1W
Description  DUAL/SINGLE OUTPUT DC-DC CONVERTER
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Maker  MORNSUN [MORNSUN Science& Technology Ltd.]
Homepage  http://www.mornsun-power.com
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 2 page
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MORNSUN reserves the copyright
Specifications subject to change without notice.
G_S-1W & H_S-1W
A/2-2008
Page 2 of 2
COMMON SPECIFICATIONS
Item
Test conditions
Min
Typ
Max
Units
Storage humidity range
95
%
Operating temperature
-40
85
Storage temperature
-55
125
Lead temperature
1.5mm from case for 10 seconds
300
Temp. rise at full load
15
25
°C
5V input voltage
1
second
Short circuit protection*
12V input voltage
Continuous
Cooling
Free air convection
Case material
Plastic(UL94-V0)
MTBF
3500
K hours
Weigh
4.2
g
*When input voltage (N
ominal) is 5V,Supply voltage must be discontinued at the end of short circuit duration.
TYPICAL CHARACTERISTICS
Ambient Temperature C
(
)
OUTLINE DIMENSIONS & PIN CONNECTIONS
Dual Output
Single Output
Pin
Singles
Duals
FOOTPRINT DETAILS
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 tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm ( 0.010inch)
First Angle Projection
1
2
5
7
6
5
1 2
6
1
2
5
7
6
1
2
5
7
1
2
5
7
1
2
5
7
6
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 testing and application 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).
Vin
GND
+Vo
0V
DC
Cin
L
L
DC
L Cout
Cout
-Vo
Dual Output
L
Single Output
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)
Single
Vout
(VDC)
Cout
(uF)
Dual
Vout
(VDC)
Cout
(uF)
5
4.7
5
10
±5
4.7
12
2.2
9
4.7
±9
2.2
-
-
12
2.2
±12
2.2
-
-
15
1
±15
1
It
’s not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
Output Voltage Regulation and Over-voltage
Protection Circuit
The
simplest
device
for
output
voltage
regulation,
over-voltage
and
over-current
protection is a linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure 2).
Vin
GND
0V
+Vo
DC DC
-Vo
REG
REG
REG
D ual Output
Single Output
Vin
GND
0V
+Vo
DC DC
REG
REG
(Figure 2)
Overload Protection
Under
normal
operating
conditions,
the
output circuit of these products has no protection
against overload. The simplest method is to
connect a self-recovery fuse in series at the input
end or add a circuit breaker to the circuit.
No parallel connection or plug and play.




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