rb rb -x -x ls&rb-xld ls&rb-xld series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 4 selection selection guide guide order code input voltage (v) output voltage (v) output current ( m a) input current ( rated load ) ( m a) efficiency (%) isolation capacitance (pf) mttf 1 (khrs) rb0303xls 3.3 3.3 150 210 72 26 1987 rb0305xls 3.3 5 100 204.5 74 26 1979 rb 0505 xls 5 5 100 145 69 28 1847 rb 0505 xld 5 5 100 145 69 28 1847 rb 05 12xls 5 12 41.5 130 77 33 981 rb 05 12xld 5 12 41.5 130 77 33 981 rb 05 15xls 5 15 33.5 126.5 79 40 667 rb 05 15xld 5 15 33.5 126.5 79 40 667 rb 1205xls 12 5 100 60.5 69 36 1485 rb 1205xld 12 5 100 60.5 69 36 1485 rb 1212xls 12 12 41.5 55 76 58 869 rb 1212xld 12 12 41.5 55 76 58 869 rb 1215xls 12 15 33.5 55 76 56 613 rb 1215xld 12 15 33.5 55 76 56 613 rb 1505xls 15 5 100 46.5 69 27 2110 rb 1505xld 15 5 100 46.5 69 27 2110 rb 1512xls 15 12 41.5 42.5 77 58 1790 rb 1512xld 15 12 41.5 42.5 77 58 1790 rb 1515xls 15 15 33.5 42 78 67 1560 rb 1515xld 15 15 33.5 42 78 67 1560 rb 2405xls 24 5 100 30 70 61 1253 rb 2405xld 24 5 100 30 70 61 1253 rb 2412xls 24 12 41.5 26.5 78 98 784 rb 2412xld 24 12 41.5 26.5 78 98 784 rb 2415xls 24 15 33.5 26 80 122 566 rb 2415xld 24 15 33.5 26 80 122 566 model model selection selection rb rb 05 05 05 05 x x ls(d) ls(d) product series input voltage output voltage fixed input package style microdc r eserves the copyright isolated 0.5 w single output dc/dc converters features features rohs compliant i/o isolation voltage 1 000vdc operating temperature: -40 85 high efficiency up to 81% fully encapsulated toroidal magnetics internal smd construction power density up to 0.85 w/cm 3 no electrolytic or tantalum capacitors 5v,12vand 15v output no heatsink required dual output from a single input rail ul 94v-0 package material no external components required industry standard pinout power sharing on output mttf up to 3.4 million hours applications applications the rb -xls(d) series of industrial temperature range dc/dc converters are the standard building blocks for on-board distributed power s ystems.they are ideally suited for providing single rail supplies on primarily digital boards with the added benefit of galvanic isolation to reduce switching noise. surface mount technology and advanced packaging materials produce rugged reliable performance over an extended temperature range from -40 c to 85 c. input input characteristics characteristics parameter conditions min typ max. units voltage range continuous operation, 5 v input types 4.5 5 5.5 v continuous operation, 12 v input types 10.8 12 13.2 continuous operation, 15 v input types 13.5 15 16.5 continuous operation, 24 v input types 21.6 24 26.4 reflected ripple current 5 v &12v input types 1.6 2.0 ma p-p 15 v &24v input types 5 10.0 absolute absolute maximum maximum ratings ratings lead temperature 1.5mm from case for 10 seconds 300 c internal power dissipation 550mw input voltage vin, r b0505 x ls, r b0512 x ls, r b0515 x ls 7v input voltage vin, r b1205 x ls, r b1212 x ls, r b1215 x ls 15v input voltage vin, r b1505 x ls, r b151 x ls, r b1515 x ls 18v input voltage vin, r b2405 x ls, r b2412 x ls, r b2415 x ls 28v 1.calculated using mil-hdbk-217fn2 calculation model with nominal input voltage at full load.
rb rb -x -x ls&rb-xld ls&rb-xld series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 4 output output characteristics characteristics parameter conditions min. typ. max. units rated power ta=-40 c to 120 c 0.5 w voltage set point accuracy see tolerance envelope line regulation high vin to low vin 1.0 1.2 %% temperature temperature characteristics characteristics parameter conditions min. typ. max. units specification all output types -40 85 storage -50 130 case temperature above ambient 5v output types 23 all other output types 28 tolerance tolerance envelope envelope r b2405 x ls r b1512 x ls, r b1515 x ls, r b2412 x ls, r b2415 x ls all other types all specifications typical at ta=25 c, nominal input voltage and rated output current unless otherwise specified.another 24v& 48v products, please inquire our technical department! general general characteristics characteristics parameter conditions min. typ. max. units switching frequency 5v input types 110 khz 12v input types 160 15v input types 90 24v input types 80 isolation isolation characteristics characteristics parameter conditions min. typ. max. units isolation test voltag e flash tested for 1 secon d 1000 vdc resistanc e viso= 1000vd c 10 g ?
rb rb -x -x ls&rb-xld ls&rb-xld series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3 of 4 technical technical notes notes isolation voltage "hi pot test","flash tested","withstand voltage","dielectric withstand voltage"& isolation test voltage" are all terms that relate to the same thing, a test voltage. applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation. professional power module b_ x ls series of dc/dc converters are all 100% production tested at their stated isolation voltage. this is 1kvdc for 1 second. a question commonly asked is,"what is the continuous voltage that can be applied across the part in normal operation?" for a part holding no specific agency approvals, such as the b_ x ls series ,both input and output should normally be maintained within selv limits i.e. less than 42.4v peak, or 60vdc.the isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. the part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier, but then the circuitry on both sides of the barrier must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-acssible circuitry according to safety standard requirements. repeated high-voltage isolation testing it is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials. construction and environment. the b_ x ls series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled wire. while parts can be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. any material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. we therefore strongly advise against repeated high voltage isolation testing. but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage. this consideration equally applies to agency recognized parts for better than functional isolation where the wire enamel insulation is always supplemented by a further insulation system of physical spacing or barriers. output output ripple ripple reduction reduction output ripple reduction by using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mv p-p max. component selection capacitor: ceramic chip capacitors are recommended. it is required that the esr(equivalent series resistance)should be as low as possible.x7r types are recommended. the voltage rating should be at least twice(except for 15v output),the rated output voltage of the dc/dc converter. inductor: the rated current of the inductor should not be less than of the output of the dc/dc converter. at the rated current, the dc resistance of the inductor should be such that the voltage drop across the inductor is <2% of the rated voltage of the dc/dc converter. the srf(self resonant frequency) should be >20mhz. characterisation test methods ripple & noise characterization method ripple and noise measurements are performed with the following test con ? guration. c1 1 f x7r multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the dc/dc converter c2 10 f tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the dc/dc converter with an esr of less than 100m at 100 khz c3 100nf multilayer ceramic capacitor, general purpose r1 450 resistor, carbon ? lm, 1% tolerance r2 50 bnc termination t1 3t of the coax cable through a ferrite toroid rload resistive load to the maximum power rating of the dc/dc converter. connections should be made via twisted wires measured values are multiplied by 10 to obtain the specif ? ed values. differential mode noise test schematic
rb rb -x -x ls&rb-xld ls&rb-xld series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 4 of 4 package package specifications specifications mechanical mechanical dimensions dimensions 7 7 pin pin sip sip package package 14 14 pin pin dip dip package package all dimensions in inches 0.01(mm 0.25mm). all pins on a 0.1(2.54) pitch and within 0.01(0.25)of true position. recommended recommended footprint footprint details details recommended recommended footprint footprint details details 7 7 pin pin sip sip package package 14 14 pin pin sip sip package package all dimensions in inches 0.01 (mm 0.25mm). all dimensions in inches 0.01 (mm 0.25mm). tube tube outline outline dimensions dimensions 7 7 pin pin sip sip tube tube 14 14 pin pin sip sip tube tube unless otherwise stated all dimensions in inches (mm) 0.5mm. tube length (14 pin dip) : 20.47 (520mm 2mm). tube length (7 pin sip) : 20.47 (520mm 2mm). tube quantity :25 footprint footprint details details -7 -7 pin pin sip sip -14 -14 pin pin dip dip p p in in function function p p in in f f unction unction 1 1 +v in 1 1 -v in 2 2 -v in 7 7 nc 4 4 -v out 8 8 -v out 6 6 +v out 9 9 +v out 11 11 no pin 14 14 +v in temperature temperature derating derating graphs graphs
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