ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Test condition
Tested for 1 minute
Test at 500VDC
Min
1000
1000
Typ
Max
Units
VDC
MΩ
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
Min
0.1
Typ
Max
1
±0.25
±1
±3
0.03
10
50
100
20
75
%/°C
mVp-p
KHz
%
Units
W
this product should never be
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Ripple*
Noise*
Switching frequency
For Vin change of 5%
10% to 100% load
100% full load
100% full load
20MHz Bandwidth
20MHz Bandwidth
Full load, nominal input
Test Conditions
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 (IB_LD -W25/IB_LS-W25 series).
Recommended 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).
L
L
*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. See below recommended circuits for more details.
Vin
Cin
+Vo
DC DC
(Figure 1)
Cout
GND
TYPICAL TEMPERATURE CURVE
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
Operating Temp.(
C
)
is ensured, the greatest capacitance of its filter
capacitor sees (Table 1).
OUTLINE DIMENSION & PIN CONNECTIONS
Fi rst Angle Projection
(0.035)
IBXXXXLS-1W
(0.236)
(0.393)
IBXXXXL D-1W
1
14
11
9
7
(0.300)
EXTERNAL CAPACITOR TABLE (TABLE 1)
Vin
Vout
Cout
Cin
(VDC)
(VDC)
(uF)
(uF)
(0.079)
5.08
(0.200)
5
12
15
24
4.7
4.7
2.2
1
5
9
12
15
10
4.7
2.2
1
It’s not recommended to connect any external capacitor
in the application field with less than 0.5 watt output.
(0.374)
(0.256)
4.10
4.10
No parallel connection or plug and play.
(0.020)
RECOMMENDED FOOTPRINT
Top
view,grid:2.54*2.54mm(0.1*0.1inch),
diameter:1.00mm(0.039inch)
14
1 2
4
6
1
11
9
7
FOOTPRINT DETAILS
Pin
1
2
4
6
SIP
Vin
GND
0V
+Vo
FOOTPRINT DETAILS
Pin
1
7
9
11
14
DIP
GND
NC
+Vo
0V
Vin
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin section tol erances: 0.10mm( 0.004inch)
General tolerances: 0.25mm( 0.010inch)
NC:No Connec tion
MORNSUN reserves the copyright
Specifications subject to change without notice.
IB_LD-1W & IB_LS-1W
A/2-2008
Page 2 of 2
MORNSUN [ MORNSUN SCIENCE& TECHNOLOGY LTD. ]
