ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Test conditions
Tested for 1 minute and 1 mA max
Test at 500VDC
Min
3000
1000
Typ
Max
Units
VDC
MΩ
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.
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
For Vin change
of
±1%
(3.3V output)
(others output)
(3.3V output)
(5V output)
Load regulation
10% to 100% load
(9V output)
(12V output)
(15V output)
Output voltage accuracy
Temperature drift
Ripple& Noise*
Switching frequency
100% full load
20MHz Bandwidth
Full load, nominal input
75
70
12
10
8.3
6.8
6.3
Test conditions
Min
0.2
Typ
Max
2
±1.5
±1.2
20
15
10
10
10
0.03
150
%/°C
mVp-p
KHz
%
Units
W
Recommended 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).
Dual Output
L
L
Vin
Cin
+Vo
Cout
DC DC
GND
Single Output
L
L Cout
0V
-Vo
See tolerance envelope graph
L
Vin
Cin
+Vo
Cout
DC DC
(Figure 1)
GND
*Test ripple and noise by
“parallel
cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
Note:
1. All specifications measured at T
A
=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. Dual output models unbalanced load:
±5%.
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
of its filter capacitor sees (Table 1).
EXTERNAL CAPACITOR TABLE (TABLE 1)
Single
Dual
Cin
Vin
Cout
Cout
Vout
Vout
(VDC)
(uF)
(uF)
(uF)
(VDC)
(VDC)
5
4.7
3.3/5
10
±
5
4.7
12
24
2.2
1
9
12
4.7
2.2
TYPICAL CHARACTERISTICS
Operating Temp.(
o
C)
OUTLINE DIMENSIONS & PIN CONNECTIONS
First A n gle P ro je ctio n
RECOMMENDED FOOTPRINT
Top
view,grid:2.54*2.54mm(0.1*0.1inch)
diameter:1.00mm(0.039inch)
Dual Output
Side view
-
-
15
1
1
It’s not recommended to connect any external capacitor in
the application field with less than 0.5 watt output.
±
9
±
12
±
15
2.2
1
1 2
5 6
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
Single Output
1 2
7.00
0.90
(0.035)
Bottom view
5
2).
D ual Output
Vin
REG
REG
+Vout
0V
-Vout
+Vout
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pinsection tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm ( 0.010inch)
FOOTPRINT DETAILS
Single
Dual
Pin
Vin
Vin
1
GND
GND
2
-Vo
5
0V
No pin
6
0V
7
+Vo
+Vo
DC
GND
Single Output
Vin
GND
REG
DC
REG
REG
DC
DC
0V
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 (E_S-1W&F_S-1W).
(Figure 2)
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
E_S-2W & F_S-2W
A/2-2008
Page 2 of 2
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