b b -x -x m m 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) b0505 x m 5 5 200 289 69 30 3415 b0509 x m 5 9 111 260 77 37 3078 b0512 x m 5 12 83 256 78 33 2205 b0515 x m 5 15 66 250 80 40 1532 b0524 x m 5 24 42 248 80 48 900 b1205 x m 12 5 200 120 69 33 2493 b1209 x m 12 9 111 116 74 48 2311 b1212 x m 12 12 83 110 76 55 1780 b1215 x m 12 15 66 111 75 52 1313 b12 24 x m 12 24 42 110 80 48 1002 b 2405x m 24 5 200 60 70 40 201 b 2409x m 24 9 111 55 75 59 185 b 2412x m 24 12 83 52 80 78 163 b 2415x m 24 15 66 52 80 79 136 b 24 24 x m 24 24 42 52 80 79 1 25 b 4805x m 48 5 200 30 70 32 213 b 4809x m 48 9 111 28 75 50 194 b 4812x m 48 12 83 26 80 76 164 b 4815x m 48 15 66 26 80 75 140 b 48 24 x m 48 24 42 25 80 75 1 38 1. calculated using mil-hdbk-217f with nominal input voltage at full load. all speci ? cations typical at ta=25 c, nominal input voltage and rated output current unless otherwise speci ? ed. model model selection selection b b 05 05 05 05 x x m m product series input voltage output voltage fixed input mini s ip package microdc r eserves the copyright isolated 1w single output micro sip4 dc/dc converters features features footprint from 0.69cm 2 i/o isolation voltage 1 000vdc operating temperature: -40 85 high efficiency up to 80% fully encapsulated toroidal magnetics internal smd construction power density up to 0.85 w/cm 3 no electrolytic or tantalum capacitors 5v 9v 12v 15v and24v output no heatsink required dual output from a single input rail ul 94v-0 package material no external compo nents required industry standard pinout power sharing on output mttf up to 3.4 million hours applications applications the b -xm series of dc/dc converters is particularly suited to isolating and/or converting dc power rails. the galvanic isolation allows the device to be configured to provide an isolated negative rail in systems where only positive rails exist. the wide temperature range guarantees startup from -40 c and full 1 watt output at 85 c. for lower ripple,refer to output ripple reduction section. input input characteristics characteristics parameter conditions min. typ. max. units voltage range continuous operation, 5 v input 4.5 5 5.5 vdc continuous operation, 12 v input 10.8 12 13.2 vdc continuous operation, 1 5 v input 13.5 15 16.5 vdc continuous operation, 24 v input 21.6 24 26.4 vdc continuous operation, 48 v input 43.2 48 52.8 vdc reflected ripple current 20 40 ma p-p absolute absolute maximum maximum ratings ratings parameter conditions lead temperature 1.5mm from case for 10 second s 300 internal power dissipation 700mw input voltage v , b 0 5 types 7v input voltage v in , b12 types 15v input voltage v in , b 1 5 types 18v input voltage v in , b24 types 28v input voltage v in , b48 types 54v
b b -x -x m m series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 4 isolation isolation characteristics characteristics parameter conditions min. typ. max. units isolation voltag e flash tested for 1 secon d 1000 vdc resistanc e viso= 1000vd c 10 g ? resistanc e(b24 b48) viso= 50 0vd c 10 g ? output output specifications specifications parameter conditions min. typ. max. units rated power ta= - 40 c to 120 c 1.0 w rated power (b24 b48) ta=0 c to 70 c 1.0 w voltage set point accuracy see tolerance envelope line regulation high vin to low vin 1.0 1.2 %% line regulation (b24 b48) high vin to low vin 1.2 %% load regulation (b24 b48) 10% load to rated load, 5v output type s 15 % 10% load to rated load,all other output type s 10 % load regulation (5vinput 12vinput) 10% load to rated load, 5v output type s 10 12.5 % 10% load to rated load, 9 v output type s 9 10 % 10% load to rated load, 12 v output type s 6.5 7.5 % 10% load to rated load, 1 5v output type s 6 7.0 % load regulation (15v input) 10% load to rated load, 5v output type s 5.5 10 % 10% load to rated load, 12 v output type s 2.6 3.0 % 10% load to rated load, 1 5v output type s 2.3 3.0 % ripple noise (b24 b48) bw=dc to 20mhz, all input type s 150 mv p-p ripple noise bw=dc to 20mhz, 5v output type s 10 20 mv p-p bw=dc to 20mhz, 9v output type s 7 15 mv p-p bw=dc to 20mhz, 12v output type s 7.5 15 mv p-p bw=dc to 20mhz, 15v output type s 8 15 mv p-p temperature temperature characteristics characteristics conditions parameter conditions min. typ. max. units specification b05 b12 b15 -40 85 specification b24 b48 0 70 storage b05 b12 b15 -50 130 storage b24 b48 -55 150 case temperature rise above ambient 0505,1205 33 0509,0512,0515,1209,1212,1215 28 1505 26 1512,1515 17 cooling free air convection general general characteristics characteristics parameter conditions min. typ. max. units switching frequency 5v input types 110 khz 12v input types 140 khz 15v input types 90 khz switching frequency(b24 b48) all input type s 100 khz temperature temperature derating derating graph graph tolerance tolerance envelope envelope 85 c 70 c 5v & 12v input 24v & 48v input ambient temperature ( c) o u t p u t p o w e r ( w )
b b -x -x m m 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 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 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 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. technical technical notes notes 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. ripple & noise characterisation 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 r3 50 resistor, carbon film, 1% measured values are multiplied by 10 to obtain the speci ? ed values. differential mode noise test schematic
b b -x -x m m series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 4 of 4 outline outline dimensions dimensions footprint footprint details details mechanical mechanical dimensions dimensions micro micro sip4 sip4 package package all all dimensions dimensions in in inches inches 0.01(mm 0.01(mm 0.25mm).all 0.25mm).all pins pins on on a a 0.1(2.54) 0.1(2.54) pitch pitch and and within within 0.01(0.25)of 0.01(0.25)of true true position. position. weight: 1.30 g (sip) footprint footprint details details -4 -4 pin pin sip sip p p in in f f unction unction 1 1 -v in 2 2 +v in 3 3 -v out 4 4 +v out specifcations can be changed any time without notice. no parallel connection or plug and play. note: 1. the load shouldn't be less than 10%, otherwise ripple will increase dramatically. 2. operation under 10% load will not damage the converter; however, they may not meet all specification listed. 3. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. in this datasheet, all the test methods of indications are based on corporate standards. microdc professional power module,inc. tel:0086-20-86000646 e-mail:tech@microdc.cn website:http://www.microdc.cn microdc professional power module,inc.makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. specifications are subject to change without notice. ? 2010 microdc professional power module, inc. guangzhou rohs compliant information this series is compatible with rohs soldering systems with a peak wave solder temperature of 300 c for 10 seconds. the pin termination finish on the sip package type is tin plate, hot dipped over matte tin with nickel preplate. the dip types are matte tin over nickel preplate. both types in this series are backward compatible with sn/pb soldering systems. reach compliant information this series has proven that this product does not contain harmful chemicals, it also has harmful chemical substances through the registration, inspection and approval. recommended recommended footprint footprint details details 4 4 pin pin sip sip package package tube tube outline outline dimensions dimensions 4 4 pin pin sip sip tube tube unless otherwise stated all dimensions in inches (mm) 0.5mm. tube length ( 4 pin sip) : 20.47 (520mm 2mm). tube quantity :25
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