COMMON SPECIFICATIONS
Item
Storage humidity range
Operating temperature
Storage temperature
Lead temperature
Temp. rise at full load
Short circuit protection*
Cooling
Case material
MTBF
Weigh
3500
4.2
5V input voltage
12V input voltage
1.5mm from case for 10 seconds
15
-40
-55
Test conditions
Min
Typ
Max
95
85
125
300
25
1
Continuous
Free air convection
Plastic(UL94-V0)
K hours
g
second
°C
Units
%
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
L
Vin
Cin
+Vo
Cout
DC DC
GND
Single Output
L
L Cout
0V
-Vo
L
Vin
Cin
+Vo
Cout
DC DC
(Figure 1)
GND
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
greatest capacitance of its filter capacitor sees
(Table 1).
EXTERNAL CAPACITOR TABLE (TABLE 1)
Cin
Single Cout
Dual
Cout
Vin
(VDC) (uF)
Vout
(uF)
Vout
(uF)
(VDC)
(VDC)
5
4.7
5
10
4.7
±
5
*When input voltage (N
ominal
) is 5V,Supply voltage must be discontinued at the end of short circuit duration.
TYPICAL CHARACTERISTICS
Ambient Temperature
( C )
12
-
-
2.2
-
-
9
12
15
4.7
2.2
1
OUTLINE DIMENSIONS & PIN CONNECTIONS
First Angle Projection
RECOMMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch)
diameter:1.00mm(0.039inch)
1 2
5 6
±
9
±
12
±
15
2.2
2.2
1
It’s not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
Dual Output
Output Voltage Regulation and Over-voltage
Protection Circuit
The
simplest
device
for
output
voltage
regulation,
over-voltage
and
over-current
1
2
5 6
7
protection is a linear voltage regulator with
overheat protection that is connected to the input
or output end in series (Figure 2).
Single Output
D ual Output
Vin
REG
REG
+Vo
0V
1
2
5
7
DC DC
GND
Single Output
REG
-Vo
FOOTPRINT DETAILS
Pin
1
2
5
6
7
Singles
Duals
Vin
GND
REG
REG
+Vo
DC DC
0V
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin tolerances: 0.10mm( 0.004inch)
General tolerances: 0.25mm ( 0.010inch)
(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.
No parallel connection or plug and play.
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.
MORNSUN reserves the copyright
Specifications subject to change without notice.
G_S-1W & H_S-1W
A/2-2008
Page 2 of 2
MORNSUN [ MORNSUN SCIENCE& TECHNOLOGY LTD. ]
