IA0512WS-1W5 Datasheet, PDF (2/2 Pages) MORNSUN Science& Technology Ltd. – 1.5W, FIXED INPUT, ISOLATED& REGULATED DUAL OUTPUT DC-DC CONVERTER

COMMON SPECIFICATIONS
Item
Test conditions
Min Typ Max Units
Storage humidity
95
%
Operating temperature
-25
75
Storage temperature
Temp. rise at full load
-45
105
°C
25
Lead temperature
1.5mm from case for 10 seconds
300
Cooling
Free air convection
Case material
Plastic (UL94-V0)
Short circuit protection*
1
s
MTBF
Weight
3500
6.3
K hours
g
*Supply voltage must be discontinued at the end of short circuit duration.
TYPICAL CHARACTERISTICS
Temperature Derating Graph
Operating Temp.( C )
OUTLINE DIMENSIONS & PIN CONNECTIONS
Recommended circuit
If you want to further decrease the
input/output ripple, an capacitor filtering network
may be connected to the input and output ends
of the DC/DC converter, see (Figure 1).
Vin
Cin
GND
+Vo
DC DC
Cout
0V
(Figure 1)
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
Vo
Cout
(VDC)
(μF)
(VDC)
(μF)
5
4.7
±12
1
12
2.2
±15
0.47
It’s not recommended to connect any external
capacitor in the application field with less than 0.5
watt output.
Overload Protection
Under normal operating conditions, the output
circuit of these products has no protection
against over-current and short-circuits. The
simplest method is to connect a self-recovery
fuse in series at the input end or add a circuit
breaker to the circuit.
Input Over-voltage Protection Circuit
The simplest device for input over-voltage
protection is a linear voltage regulator with
overheat protection that is connected to the
input end in series (Figure 2).
Vin
REG
+Vo
DC DC
0V
GND
-Vo
(Figure 2)
When the environment temperature is higher
than 71°C, the product working should be
see temperature derating graph.
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 could not be less than 10% of the full 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.
MORNSUN reserves the copyright
Specifications subject to change without notice.
IA_WS-1W5
A/3-2012
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