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IE0509KS-1W Datasheet(PDF) 2 Page - MORNSUN Science& Technology Ltd. |
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IE0509KS-1W Datasheet(HTML) 2 Page - MORNSUN Science& Technology Ltd. |
2 / 2 page MORNSUN reserves the copyright Specifications subject to change without notice IE_KS-1W & IE_S-1W A/2-2008 Page 2 of 2 COMMON SPECIFICATIONS Item Test conditions Min Typ Max Units Storage humidity 95 % Operating temp. range -40 85 Storage temp. range -55 125 Temp. rise at full load 20 30 Lead temperature 1.5mm from case for 10 seconds 300 °C Cooling Free air convection Case material Plastic (UL94-V0) IEXXXXS-1W Continuous Short circuit protection IEXXXXKS-1W * 1 s MTBF 3500 K hours Weight 5.2 g *Supply voltage must be discontinued at the end of short circuit duration. TYPICAL CHARACTERISTICS Operating Temp.( ) C Temperature Derating Graph OUTLINE DIMENSIONS 1 2 7 9 10 1 2 7 10 9 GND +Vo 0V -Vo Vin (1.080) 2.32 7 9 10 2 1 2.54 0.50 (0.020) FOOTPRINT DETAILS Pin Function RECO MM ENDED FOOTPRINT Top view,grid:2.54m m(0.1inch) diam ete r:1.00mm (0.039inch) 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) First Angle Projection (Si de View) (Bottom View) 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! Filtering To get an extreme low ripple, an “LC” filtering network may be connected to the input and output ends of the DC/DC converter, which may produce a more 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). Vin GND +Vo 0V DC Cin L L DC L Cout Cout -Vo (Figure 1) In some circuits which are sensitive to noise 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 the safe and reliable operation is ensured, the greatest capacitance of its filter capacitor refer to the external capacitor table (table1). EXTERNAL CAPACITOR TABLE (TABLE1) Vin (VDC) Cin (uF) Vout (VDC) Cout (uF) 5 4.7 ±5 4.7 12 2.2 ±9 2.2 24 1 ±12 1 -- -- ±15 0.47 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. 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. |
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