H0505S-1W Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – DUAL/SINGLE OUTPUT DC-DC CONVERTER

COMMON SPECIFICATIONS
Item
Test conditions
Min Typ Max Units
Storage humidity range
95
%
Operating temperature
-40
85
Storage temperature
Lead temperature
-55
1.5mm from case for 10 seconds
125
°C
300
Temp. rise at full load
15
25
5V input voltage
Short circuit protection*
12V input voltage
1
Continuous
second
Cooling
Free air convection
Case material
Plastic(UL94-V0)
MTBF
3500
K hours
Weigh
4.2
g
*When input voltage (Nominal) is 5V,Supply voltage must be discontinued at the end of short circuit duration.
TYPICAL CHARACTERISTICS
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
Note:
Un it : mm(i nch )
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.
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).
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
-
-
12
2.2 ±12 2.2
-
-
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).
Dual Output
Vin
REG
REG
+Vo
DC DC
0V
GND
REG
-Vo
Single Output
Vin
REG
REG
+Vo
DC DC
GND
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.
No parallel connection or plug and play.
MORNSUN reserves the copyright
Specifications subject to change without notice.
G_S-1W & H_S-1W A/2-2008
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