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H0503RN-2W Folha de dados(PDF) 2 Page - MORNSUN Science& Technology Ltd.

Nome de Peças H0503RN-2W
Descrição Electrónicos  SINGLE OUTPUT DC-DC CONVERTER
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Fabricante Electrônico  MORNSUN [MORNSUN Science& Technology Ltd.]
Página de início  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

H0503RN-2W Folha de dados(HTML) 2 Page - MORNSUN Science& Technology Ltd.

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The copyright and authority for the interpretation of the products are reserved by MORNSUN
Specifications subject to change without notice.
H_RN-2W & H_LT-2W
C/0-2012
Page 2 of 3
OUTPUT SPECIFICATIONS
TYPICAL CHARACTERISTICS
Item
Test Conditions
Min.
Typ.
Max.
Units
Output power
0.2
2
W
Line regulation
For Vin change of
±1%
±1.2
10% to 100% load (5V output)
12.8
15
10% to 100% load (9V output)
8.3
15
10% to 100% load (12V output)
6.8
15
Load regulation
10% to 100% load (15V output)
6.3
15
%
Output voltage accuracy
See tolerance envelope graph
Temperature drift
100% full load
±0.03
%/
°C
Ripple & Noise*
20MHz Bandwidth
150
200
mVp-p
Switching frequency
Full load, nominal input
50
KHz
*Test ripple and noise by
“parallel cable” method. See detailed operation instructions at Testing of
Power Converter. Section, application notes.
RECOMMENDED REFLOW SOLDERING PROFILE
0
50
1 00
1 50
2 00
2 50
Tim e (s ec .)
2 20
1 0
Max
Se c
P ea k. Te mp 2 60
90
M ax
(>22 0
)
S ec
C
C
C
Remark: The curve applies only to the hot air reflow soldering
Operating Temp.( C)
o
APPLICATION NOTE
RECOMMENDED CIRCUIT
1) Requirement On Output Load
To ensure this module can operate efficiently and reliably, a minimum load is
specified for this kind of DC/DC converter in addition to a maximum load (namely full
load). During operation, make sure the specified range of input voltage is not exceeded,
the minimum output load could not be less than 10% of the full 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.
2) 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).
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 recommended capacitance of its filter capacitor
sees (Table 1).
3) 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).
4) 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.
5) No parallel connection or plug and play
L
Vin
GND
+Vo
0V
DC
Cin
L
DC
Cout
(Figure 1)
Vin
GND
0V
+Vo
DC
DC
REG
Vin
GND
0V
+Vo
DC
DC
REG
(Figure 2)
EXTERNAL CAPACITOR TABLE (TABLE 1)
Vin
(VDC)
Cin
(
µF)
Single Vout
(VDC)
Cout
(
µF)
5
4.7
5
10
12
2.2
9
4.7
24
1
12
2.2
--
--
15
1
It
’s not recommended to connect any external
capacitor in the application field with less than
0.5 watt output.


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