2b 2b -x -x (s)d (s)d series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 1 of 5 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) 2b 050 3x s 5 3.3 400 470 85 30 3988 2b 0505 x s 5 5 400 470 81 33 3956 2b 0505 xd 5 5 400 470 81 33 3956 2b 0509 x s 5 9 222 455 84 40 3682 2b 0509 xd 5 9 222 455 84 40 3682 2b 0512 x s 5 12 167 450 84 40 3299 2b 0512 xd 5 12 167 450 84 40 3299 2b 0515 x s 5 15 133 450 84 40 2833 2b 0515 xd 5 15 133 450 84 40 2833 2b 05 24x s 5 24 83 442 82 40 2766 2b 05 24xd 5 24 83 442 84 40 2766 2b 1205 x s 12 5 400 200 81 40 2519 2b 1205 xd 12 5 400 200 81 40 2519 2b 1209 x s 12 9 222 190 83 61 2405 2b 1209 xd 12 9 222 190 83 61 2405 2b 1212 x s 12 12 167 190 85 74 2235 2b 1212 xd 12 12 167 190 85 74 2235 2b 1215 x s 12 15 133 185 85 68 2011 2b 1215 xd 12 15 133 185 85 68 2011 2b 12 24x s 12 24 83 99 84 68 1800 2b 12 24xd 12 24 83 99 83 69 1789 2b 1515x s 15 15 133 185 85 68 2012 2b 1515xd 15 15 133 185 85 70 2015 2b 2405 xs 24 5 400 104 80 60 2000 2b 240 6xs 24 6 333.3 102 82 58 1850 2b 2409 xs 24 9 222 100 83 65 1980 2b 2412 xs 24 12 167 99 84 78 1800 2b 2415 xs 24 15 133 99 84 58 1760 2b 2424 xs 24 24 83 99 84 68 1800 2b 2405 x d 24 5 400 104 80 60 1850 2b 2409 x d 24 9 222 100 83 65 1886 2b 2412 x d 24 12 167 99 84 78 1986 2b 2415 x d 24 15 133 99 84 58 1801 2b 2424 x d 24 24 83 99 84 68 1850 add suffix p for continuous short circuit protection, e.g. 2b 0505xd p model model selection selection 2 2 b b 05 05 05 05 x x s s product series input voltage output voltage fixed input s ip package microdc r eserves the copyright fixed input, isolated 2 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,9v,12v and 15v output no heat sink 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 3.9 million hours applications applications the 2 b - x(s)d 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 2 watt output at 85 . pin compatibility with the b_ x ls series ensures ease of upgradeability. 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, 24 v input types 21.6 24 26.4 reflected ripple current 7.5 15 ma p-p absolute absolute maximum maximum ratings ratings short-circuit protection 2 1 second lead temperature 1.5mm from case for 10 seconds 300 internal power dissipation 550mw input voltage vin,b05 types 7v input voltage vin,b12 types 15v 1.calculated using mil-hdbk-217fn2 calculation model with nominal input voltage at full load. 2.supply voltage must be disconnected at the end of the short circuit duration. all specifications typical at ta=25 c,nominal input voltage and rated output current unless otherwise specified.
2b 2b -x -x (s)d (s)d series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 2 of 5 output output characteristics characteristics parameter conditions min. typ. max. units rated power ta=-40 to 85 0.2 2 w voltage set point accuracy see tolerance envelope line regulation high vin to low vin 1.05 1.2 %% load regulation 10% to 100% load 3.3v output 12 20 % 5v output 12.8 15 % 9v output 8.3 15 % 12v output 6.8 15 % 15v output 6.3 15 % 24v output 6.0 15 % capacitive capacitive loading loading and and start start up up typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10f, are s a w in the table below. the product series will start into a capacitance of 47f with an increased start time, however, the maximum recommended output capacitances 10f typical start-up wave form start-up time 2b 0505 x s 444 2b 0509 x s 1120 2b 0512 x s 1930 2b 0515 x s 3470 2b 1205 x s 409 2b 1209 x s 1320 2b 1212 x s 1320 2b 1215 x s 2270 temperature temperature characteristics characteristics conditions parameter conditions min. typ. max. units specification all output types -40 85 storage -50 125 case temperature above ambient b0505xs output types 30 b1205xs output types 25 all other output types 20 general general characteristics characteristics parameter conditions min. typ. max. units switching frequency 60 khz isolation isolation characteristics characteristics parameter conditions min. typ. max. units isolation voltag e flash tested for 1 secon d 1000 vdc resistanc e v iso= 5 00vd c 1000 m ?
2b 2b -x -x (s)d (s)d series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 3 of 5 temperature temperature derating derating graph graph tolerance tolerance envelope envelope the voltage tolerance envelope shows typical load regulation characteristics for this product series. the tolerance envelope is the maximum output voltage variation due to changes in output 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 all measurement to be taken with the following components connected to the uut as detailed below. 50 ohm coax cable, solder connections one end, bnc plug at the other end. 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 spec ? ed values. differential mode noise test schematic
2b 2b -x -x (s)d (s)d series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 4 of 5 package package specifications specifications mechanical mechanical dimensions dimensions sip sip package package dip dip package package all all dimensions dimensions in in inches inches 0.01(mm 0.01(mm 0.25mm). 0.25mm). all 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: weight: 2.8g(sip) 2.8g(sip) 4.2g(dip) 4.2g(dip) footprint footprint sip sip 7 7 footprint footprint dip14 dip14 pin pin f f unction unction pin pin f f unction unction 1 1 +v in 1 1 gnd 2 2 -v in 7 7 nc 4 4 -v out 8 8 0v 6 6 +v out 9 9 +v0 11 11 no pin nc no connection 14 14 v in 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. 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?" the b_ x( s )d series has been recognized by underwriters laboratory for functional insulation. 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. recommended recommended footprint footprint details details 4 4 pin pin sip sip package package 14 14 pin pin dip dip package package unless otherwise stated all dimensions in inches (mm) 0.5mm
2b 2b -x -x (s)d (s)d series series http://www.microdc.cn technical enquiries-email:tech@microdc.cn tel:0086-20-86000646 page 5 of 5 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. tube tube outline outline dimensions dimensions 4 4 pin pin sip sip tube tube 14 14 pin pin dip dip tube tube unless otherwise stated all dimensions in inches (mm) 0.5mm. tube length (14 pin dip) : 20.47 (520mm 2mm). tube length ( 4 pin sip) : 20.47 (520mm 2mm). tube quantity :25
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