IB0505LS-W25 Datasheet, PDF (2/3 Pages) MORNSUN Science& Technology Ltd. – SINGLE OUTPUT DC-DC CONVERTER

COMMON SPECIFICATIONS
Item
Test condition
Storage humidity
Operating temperature
Storage temperature
Temp. rise at full load
Lead temperature
1.5mm from case for 10 seconds
Cooling
Short circuit protection
Case material
MTBF
Weight
IB_LS-W25 series
IB_LD-W25 series
Min. Typ. Max. Units
95
%
-40
85
-55
125
°C
15
25
300
Free air convection
Continuous
Plastic(UL94-V0)
3500
k hours
2.1
g
2.4
TYPICAL TEMPERATURE CURVE
Operating Temp.( C )
APPLICATION NOTE
RECOMMENDED CIRCUIT
1) 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, or use our company’s products with a lower rated output power.
2) 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)
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. It’s not recommended to connect any external capacitor in the
application field.
L
Vin
Cin
GND
DC DC
L
+Vo
Cout
0V
(Figure 1)
Vin REG
+Vo
DC DC
GND
0V
(Figure 2)
3) Overload Protection
Under normal operating conditions, the output circuit of these products has no protection
against over-current. The simplest method is to connect a self-recovery fuse in series at the
input end or add a circuit breaker to the circuit.
4) 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).
5) No parallel connection or plug and play
The copyright and authority for the interpretation of the products are reserved by Mornsun
Specifications subject to change without notice.
IB_LS-W25 & IB_LD-W25 A/1-2012 Page 2 of 3