EA0505S-1W Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – DUAL/SINGLE OUTPUT DC-DC CONVERTER

OUTPUT SPECIFICATIONS
Item
Test conditions
Min Typ Max Units
Output power
Line regulation
For Vin change of 1%
0.1
1
W
±1.2
10% to 100% load(5V output)
12.8 15
Load regulation
10% to 100% load (9V output)
10% to 100% load (12V output)
8.3
15
%
6.8
15
10% to 100% load (15V output)
6.3
15
Output voltage accuracy
Temperature drift 100% full load
See tolerance envelope graph
0.03 %/°C
Ripple & Noise*
20MHz Bandwidth
150 200 mVp-p
Switching frequency
Full load,
nominal input
(5V input)
(others input)
250
42
KHz
*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 TA=25°C, humidity<75%, nominal input voltage and rated output load
unless otherwise specified.
2. Dual output models unbalanced load: ±5%.
TYPICAL CHARACTERISTICS
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).
Dual Output
L
Vin
Cin
GND
DC DC
L
+Vo
Cout
0V
L ^Cout
-Vo
Single Output
L
Vin
L
+Vo
Cin
DC DC
Cout
GND
0V
(Figure 1)
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
greatest capacitance of its filter capacitor sees
(Table 1).
Ambient Temperature ( C )
OUTLINE DIMENSIONS & PIN CONNECTIONS
12 56
First Angle Projection
RECOMMENDED FOOTPRINT
Top view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
Dual Output
12
56 7
Single Output
12
57
EXTERNAL CAPACITOR TABLE (TABLE 1)
Vin Cin Single Cout Dual Cout
(VDC) (uF) Vout (uF) Vout (uF)
(VDC)
(VDC)
5
4.7 5
10 ±5 4.7
12 2.2
9
4.7 ±9 2.2
24
1
12 2.2 ±12 1
-
-
15
1 ±15 1
It’s not recommended to connect any external
capacitor in the application field with less than 0.5
watt output.
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).
Note:
Un it : mm( i nc h )
Pin section: 0. 50*0.30mm(0.020*0.012inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
FOOTPRINT DETAILS
Pin Singles Duals
1
2
5
6
7
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.
Dual Output
Vin
REG
REG
GND
DC DC
REG
Single Output
Vin
REG
REG
GND
DC DC
(Figure 2)
+Vout
0V
-Vout
+Vout
0V
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.
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
EA_S-1W & FB_S-1W A/1-2008 Page 2 of 2