3) Recommended circuit
If you want to further decrease the input/output ripple, an capacitor filtering network may be connected to the input and output ends of the DC/DC
converter, see (Figure 2).
It should also be noted that the capacitance of 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).
+Vo
Vin
Cin
DC DC
(Figure 2)
Cout
GND
0V
EXTERNAL CAPACITOR TABLE (Table 1)
Vin
Cin
Vo
Cout
(µF)
(VDC)
(µF)
(VDC)
5
4.7
5
10
12
15
24
2.2
2.2
1
9
12
15
4.7
2.2
1
-
--
24
0.47
It’s not recommended to connect any external capacitor in the application field with less than 0.5 watt output.
4) Output Voltage Regulation and Over-voltage Protection Circuit
The simplest device for output voltage regulation, over-voltage and over-current protection is a linear regulator and an capacitor filtering network with
overheat protection that is connected to the input or output end in series (Figure 3), the recommended capacitance of its filter capacitor sees (Table 1),
linear regulator based on the actual voltage and current to reasonable selection.
Vin
GND
REG
REG
+Vo
DC DC
0V
(Figure 3)
5) Cannot use in parallel and hot swap
Note:
1. Operation under minimum load will not damage the converter; However, they may not meet all specification listed.
2. Max. Capacitive Load tested at input voltage range and full load.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on our corporate standards.
5. All characteristics are for listed model only, non-standard models may perform differently, please contact our technical person for more detail.
6. Contact us for your specific requirement.
7. Specifications subject to change without prior notice.
MORNSUN Science & Technology Co.,Ltd.
Address: No. 5, Kehui St. 1, Kehui development center, Science Ave., Guangzhou Science City, Luogang district, Guangzhou,P.R.China.
Tel: 86-20-28203030
Fax:86-20-38601272
The copyright and authority for the interpretation of the products are reserved by MORNSUN
B_XT-1WR2
A/0-2012
Page 5 of 5
MORNSUN [ MORNSUN SCIENCE& TECHNOLOGY LTD. ]
