ISOLATION CHARACTERISTICS
Item
Isolation voltage
Isolation resistance
Isolation capacitance
Test Conditions
Tested for 1 minute and 1mA max
Test at 500VDC
Min
6000
1000
10
Typ
Max
Units
VDC
MΩ
pF
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).
L
Vin
Cin
G ND
L
+Vo
TYPICAL CHARACTERISTICS
DC DC
(Figure 1)
Cout
0V
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
Operating Temp.( C)
o
of its filter capacitor sees (Table 1).
EXTERNAL CAPACITOR TABLE (Table 1)
OUTLINE DIMENSIONS & PIN CONNECTIONS
Vin
(VDC)
5
12
24
Cin
(uF)
4.7
2.2
1
Single Vout
(VDC)
5
12
15
Cout
(uF)
10
2.2
1
23.86 (0.940)
8.00
(0.315)
7.50
(0.295)
(Side View)
3.00
(0.118)
First Angle Projection
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
It’s not recommend to connect any external capacitor in the
application field with less than 0.5 watt output.
2.54
(0.100)
15.24 (0.600)
16
10 9
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).
(0.540)
16
(Top View)
10 9
13.70
1
15.24 (0.600)
15.24(0.600)
7 8
1
7 8
Vin
GND
REG
+Vout
DC DC
0V
REG
13.70(0.540)
FOOTPRINT DETAILS
Pin
Function
1
GND
7
NC
8
NC
+Vo
9
10
-Vo
16
Vin
NC:No Connection
Vin
GND
+Vout
DC DC
0V
(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.
Note:
Unit:mm(inch)
Pin section:0.60*0.25mm(0.024*0.010inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
APPLICATION NOTE
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 (nam ely full
load). During operation, make sure the specified range of input voltage is not
exceeded, 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.
No parallel connection or plug and play.
Note:
1. All specifications measured at Ta=25°C, humidity<75%,
nominal input voltage and rated output load unless
otherwise specified.
2. Only typical models listed, other models may be different,
please contact our technical person for more details.
3. Operation under minimum load will not damage the
converter; However, they may not meet all specification
listed.
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
H_RN-2W
A/0-2009
Page 2 of 2
MORNSUN [ MORNSUN SCIENCE& TECHNOLOGY LTD. ]
