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H0305S-1WR2 Datasheet(PDF) 4 Page - MORNSUN Science& Technology Ltd.

Part No. H0305S-1WR2
Description  Reinforced insulation
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Maker  MORNSUN [MORNSUN Science& Technology Ltd.]
Homepage  http://www.mornsun-power.com
Logo MORNSUN - MORNSUN Science& Technology Ltd.

H0305S-1WR2 Datasheet(HTML) 4 Page - MORNSUN Science& Technology Ltd.

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DC/DC Converter
G_S-1WR2 & H_S-1WR2 Series
2016.11.02-A/3
Page 4 of 5
MORNSUN Guangzhou Science & Technology Co., Ltd. reserves the copyright and right of final interpretation
Design Reference
1. Typical application
If it is required to further reduce input and output ripple, a filter capacitor can be connected to the input and output terminals, see Fig.3.
Moreover, choosing suitable filter capacitor is very important, start-up problems may be caused by too large capacitance. To ensured the
modules running well, the recommended capacitive load values as shown in Table 1.
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 (see Fig. 4).
S in g l e
V in
G N D
+Vo
0 V
D C
C in
D C
C ou t
D u a l
V in
G N D
+Vo
0 V
D C
C in
D C
C out
C ou t
-Vo
Fig. 3
Single
Vin
GND
0V
+Vo
DC DC
REG
REG
Vin
GND
0V
+Vo
DC DC
-Vo
REG
REG
REG
Dual
Fig. 4
Recommended capacitive load value table (Table 1)
Vin
(VDC)
Cin
(µF)
Single
Vout
(VDC)
Cout
(µF)
Dual
Vout
(VDC)
Cout
(µF)
3.3/5
10
3.3/5
10
±5
4.7
12/15
4.7
12
2.2
±9
2.2
24
2.2
15
1
±12/±15
1
2. EMC typical recommended circuit (CLASS B)
Vin
GND
+Vo
-Vo
(
)
0V
DC/DC
LOAD
LDM
C1
C2
C3
Vin
GND
Fig. 5
Recommended typical circuit parameters:
Input voltage (V)
3.3/5/12/15/24
EMI
C1,C2
4.7µF /50V
C3
Refer to the Cout in Fig.3
LDM
6.8µH
3. Output load requirements
In order to ensure the converter can work reliably with high efficiency, the minimum load should not less than 10% rated load when it is used.
If the needed power is indeed small, please parallel a resistor on the output side ( The sum of the efficient power and resistor consumption
power is not less than 10%).
4. For more information please find the application notes on www.mornsun-power.com


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