e1212s-2w MORNSUN Science& Technology Ltd., e1212s-2w Datasheet - Page 2

• Manufacturer Part Number: e1212s-2w
• Description: 2w, Fixed Input, Isolated
• Manufacturer: MORNSUN Science& Technology Ltd.

1. All specifications measured at T
2. Dual output models unbalanced load: ±5%.
Note:
Requirement on output load
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).
Item
Isolation voltage
Isolation resistance
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple& Noise*
Switching frequency
*Test ripple and noise by “parallel cable” method. See detailed operation instructions at Testing of
Power Converter section, application notes.
ISOLATION SPECIFICATIONS
OUTPUT SPECIFICATIONS
unless otherwise specified.
TYPICAL CHARACTERISTICS
OUTLINE DIMENSIONS & PIN CONNECTIONS
APPLICATION NOTE
To ensure this module can operate efficiently and reliably, During operation, the
MORNSUN reserves the copyright
(0.035)
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)
0.90
Test conditions
Tested for 1 minute and 1 mA max
Test at 500VDC
Test conditions
For Vin change
of ±1%
10% to 100% load
100% full load
20MHz Bandwidth
Full load, nominal input
A
=25°C, humidity<75%, nominal input voltage and rated output load
Side view
Bottom view
Specifications subject to change without notice.
(3.3V output)
(others output)
(3.3V output)
(5V output)
(9V output)
(12V output)
(15V output)
FOOTPRINT DETAILS
RECOMMENDED FOOTPRINT
Top
diameter:1.00mm(0.039inch)
Pin
First A n gle P ro je ctio n
2
5
6
7
1
Single Output
Dual Output
view,grid:2.54*2.54mm(0.1*0.1inch)
1 2
1 2
Single
No pin
GND
+Vo
0V
Vin
Operating Temp.( C)
See tolerance envelope graph
3000
1000
Min
Min
0.2
5 6
5
GND
Dual
+Vo
-Vo
Vin
0V
Typ
Typ
8.3
6.8
6.3
12
10
75
70
o
Max
Max
±1.5
±1.2
0.03
150
20
15
10
10
10
2
mVp-p
Units
Units
%/°C
VDC
KHz
MΩ
W
%
E_S-2W & F_S-2W
Overload Protection
It’s not recommended to connect any external capacitor in
the application field with less than 0.5 watt output.
Output
Protection Circuit
No parallel connection or plug and play.
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.
Recommended circuit
ripple, an “LC” filtering network may be connected to
the input and output ends of the DC/DC converter,
see (Figure 1).
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).
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).
Under normal operating conditions, the output
If you want to further decrease the input/output
It should also be noted that the inductance and the
The simplest device for output voltage regulation,
D ual Output
GND
Single Output
GND
(VDC)
Vin
Vin
Dual Output
GND
Single Output
GND
Vin
EXTERNAL CAPACITOR TABLE (TABLE 1)
12
24
Vin
Vin
5
-
Voltage
Cin
Cin
REG
REG
(uF)
Cin
4.7
2.2
1
-
L
L
DC
DC
Regulation
Single
(VDC)
Vout
3.3/5
A/2-2008
(Figure 1)
12
15
(Figure 2)
9
DC
DC
DC
DC
DC
DC
Cout
(uF)
4.7
2.2
10
1
REG
REG
REG
and
L
L Cout
L
(VDC)
Page 2 of 2
Dual
Vout
±
±
Cout
Cout
±
±
12
15
5
9
Over-voltage
+Vout
-Vout
+Vout
0V
0V
Cout
(uF)
+Vo
+Vo
4.7
2.2
-Vo
0V
0V
1
1