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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: -40C to +85C 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 M
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=25C, 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 --
12 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
12
(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 71C, 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

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