IE_KS-1W & IE_S-1W Series
1W FIXED INPUT ISOLATED & REGULATED
DUAL OUTPUT DC-DC CONVERTER
multi-country patent protection
RoHS
FEATURES
Low ripple and good EMC features
Good dynamic feature
3KVDC Isolation
SIP Package
Temperature Range: -40°C to +85°C
Internal SMD construction
No Heat sink Required
No External Component Required
RoHS Compliance
PRODUCT PROGRAM
Input
Part
Number
IE0505S-1W
IE0505KS-1W*
IE0509KS-1W*
IE0512KS-1W
IE0515KS-1W
IE1205S-1W
IE1205KS-1W*
IE1209KS-1W*
12
11.4-12.6
5
4.75-5.25
Voltage (VDC)
Nominal
Range
Voltage
(VDC)
±5
±5
±9
±12
±15
±5
±5
±9
±12
±15
±5
±5
24
22.8-25.2
±9
±12
±15
Output
Current (mA)
Max
±100
±100
±56
±42
±33
±100
±100
±56
±42
±33
±100
±100
±56
±42
±33
Min
±10
±10
±6
±5
±4
±10
±10
±6
±5
±4
±10
±10
±6
±5
±4
Switching
Efficiency
frequency
(%, Typ)
(KHz,Typ.)
69
54
61
62
64
72
54
61
63
64
72
54
60
63
64
83
83
83
83
250
100
83
83
83
83
83
83
83
83
300
APPLICATIONS
The IE_KS-1W&IE_S-1W
Series
are
specially designed for applications where a
group of polar power supplies are isolated
from the input power supply in a distributed
power supply system on a circuit board.
These products apply to:
1) Where the voltage of the input power
supply is fixed (voltage variation
≤±5%);
2) Where isolation is necessary between
input
and
output
(isolation
voltage
≤3000VDC);
3) Where the regulation of the output
voltage and the output ripple noise are
demanded.
IE1212KS-1W*
IE1215KS-1W*
IE2405S-1W
IE2405KS-1W
IE2409KS-1W*
IE2412KS-1W
IE2415KS-1W
* Designing.
ISOLATION SPECIFICATIONS
Item
Isolation voltage
Isolation resistance
Test conditions
Tested for 1 minute and 1 mA max
Test at 500VDC
Min
3000
1000
Typ
Max
Units
VDC
MΩ
MODEL SELECTION
IE0505KS-1W
Rated Power
Package Style
Outp ut Vo ltage
In put Volta ge
Produ ct Se ries
OUTPUT SPECIFICATIONS
Item
Output power
Line regulation
Load regulation
Output voltage accuracy
Temperature drift
Output ripple*
For Vin change of
±5%
10% to 100% full load
100% full load
100% full load
20MHz Bandwidth
20MHz Bandwidth
10
50
Test conditions
Min
0.1
Typ
Max
1
±0.25
±1
±3
0.03
20
100
%/°C
mVp-p
%
Units
W
MORNSUN Science & Technology co.,Ltd.
Address:
2th floor 6th building, Hangzhou
Industrial District, Guangzhou, China
Tel: 86-20-38601850
Fax: 86-20-38601272
http://www.mornsun-power.com
Output noise*
*
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.
MORNSUN reserves the copyright
Specifications subject to change without notice
IE_KS-1W & IE_S-1W
A/2-2008
Page 1 of 2
COMMON SPECIFICATIONS
Item
Storage humidity
Operating temp. range
Storage temp. range
Temp. rise at full load
Lead temperature
Cooling
Case material
Short circuit protection
MTBF
Weight
*Supply voltage must be discontinued at the end of short circuit duration.
Test conditions
Min
Typ
Max
95
Units
%
Filtering
To get an extreme low ripple, an
“LC”
filtering network may be connected to the
input
and
output
which
ends
may
of
the
a
DC/DC
more
converter,
produce
-40
-55
20
1.5mm from case for 10 seconds
85
125
30
300
Free air convection
Plastic (UL94-V0)
°C
significant filtering effect. 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 see (figure 1).
L
L
IEXXXXS-1W
IEXXXXKS-1W *
3500
Continuous
1
s
K hours
GND
Vin
Cin
+Vo
Cout
DC DC
(Figure 1)
L Cout
0V
-Vo
5.2
g
In some circuits which are sensitive to noise
TYPICAL CHARACTERISTICS
Temperature Derating Graph
and ripple, a filtering capacitor may be added
to the DC/DC output end and input end to
reduce the noise and ripple. However, the
capacitance of the output filter capacitor must
proper. If the capacitance is too big, a startup
problem might arise. For every channel of
output,
providing
is
the
safe
and
the
reliable
greatest
operation
ensured,
capacitance of its filter capacitor refer to the
external capacitor table (table1).
Operating Temp.(
C
)
EXTERNAL CAPACITOR TABLE (TABLE1)
Vin
Vout
Cout
Cin
(VDC)
(VDC)
(uF)
(uF)
5
4.7
2.2
1
--
±5
±9
±12
±15
4.7
2.2
1
0.47
OUTLINE DIMENSIONS
0 .90
(0 .035 )
First Angle Projection
9.50
(Bottom View)
12
24
--
1 2
2.32
7
9 10
2.54
RECO MMENDED FOOTPRINT
Top
view,grid:2.54mm(0.1inch)
diamete r:1.00mm(0.039inch)
Overload Protection
Under normal operating conditions, the
1 2
(1.080)
7
9 10
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.
12.00
(0.472)
4.10
(Si de View)
FOOTPRINT DETAILS
Pin
1
2
7
9
10
Function
Vin
GND
+Vo
-Vo
0V
0.50
(0.020)
Note:
Unit:mm(inch)
Pin section:0.50*0.30mm(0.020*0.012inch)
Pin section toleranc es: 0.10mm( 0.004inch)
General tolera nces: 0.25 mm( 0.010inch)
When the environment temperature is
higher than 71°C, the product output
power should be less then 60% of the
rated power.
No parallel connection or plug and play.
Use dual output simultaneously, forbid
opening output pin(0V) to use as single
output.
APPLICATION NOTE
Requirement on output load
To ensure this module can operate efficiently and reliably, a minimum load is specified for
this kind of DC/DC converter in addition to a maximum load (namely full load). During
operation, make sure the specified range of input voltage is not exceeded, the minimum
output load is
not less than 10%
of the full load, that this product should
never be
operated under no load!
MORNSUN reserves the copyright
Specifications subject to change without notice
IE_KS-1W & IE_S-1W
A/2-2008
Page 2 of 2
Embedded System
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