the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2w & b_s-2w b/1-2012 page 1 of 5 a_s-2w & b_s-2w series 2w, fixed input, isolated & unregulated dual/single output dc-dc converter patent protection rohs part number system a0505s-2w product series input voltage output voltage package style rated power features efficiency up to 86% 1kvdc isolation sip package high power density low temperature rise operating temperature range: -40 c ~ +85 c no external component required industry standard pinout applications the a_s-2w & b_s-2w series are designed for application where isolated output is required from a distributed power system. these products apply to where: 1) input voltage variation 10%; 2) 1kvdc input and output isolation; 3) regulated and low ripple noise is not required. such as: digital circuits, low frequency analog circuits, and igbt power device driving circuits. selection guide input voltage(vdc) output current (ma) input current (ma)(typ.) model number nominal (range) output voltage (vdc) max. min. @max. load @no load reflected ripple current (ma,typ.) max. capacitive load # ( f) efficiency (%, typ.) @max. load approval b0303s - 2w 3.3 400 40 -- -- -- 73 b0305s-2w 3.3(2.97-3.63) 5 400 40 749 46 32 220 78 a0505s-2w 5 200 20 491 33 30 82 ul a0509s-2w 9 111 12 466 36 22 85 ul a0512s-2w 12 83 9 464 34 26 86 ul a0515s-2w 15 67 7 459 19 33 82 ul a0524s-2w 24 42 5 453 25 49 100 84 B0503S-2W 3.3 400 40 355 35 43 74 b0505s-2w 5 400 40 490 44 44 81 ul ce b0509s-2w 9 222 23 467 33 19 84 ul ce b0512s-2w 12 167 17 463 33 20 83 ul ce b0515s-2w 15 133 14 466 33 20 84 ul ce b0524s-2w 5 (4.5-5.5) 24 84 10 465 34 59 220 82 a1205s-2w 5 200 20 198 18 23 81 ul a1209s-2w 9 111 12 191 17 30 84 ul a1212s-2w 12 83 9 188 16 20 86 ul a1215s-2w 15 67 7 197 20 21 82 ul a1224s-2w 24 42 5 186 12 19 100 84 b1205s-2w 5 400 40 204 16 31 81 ul ce b1209s-2w 9 222 23 202 24 28 82 ul ce b1212s-2w 12 167 17 190 16 22 85 ul ce b1215s-2w 15 133 14 196 19 16 82 ul ce b1224s-2w 12 (10.8-13.2) 24 84 10 189 15 13 220 84
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2w & b_s-2w b/1-2012 page 2 of 5 input voltage(vdc) output current (ma) input current (ma)(typ.) model number nominal (range) output voltage (vdc) max. min. @max. load @no load reflected ripple current (ma,typ.) max. capacitive load # ( f) efficiency (%, typ.) @max. load approval a1505s-2w 5 200 20 160 15 32 80 a1515s-2w 15 67 7 152 14 17 100 82 b1505s-2w 5 400 40 159 14 30 80 b1515s-2w 15 13.5-16.5 a2405s-2w 5 200 20 100 9 42 80 ul a2409s-2w 9 111 12 98 9 22 84 ul a2412s-2w 12 83 9 93 7 17 84 ul a2415s-2w 15 67 7 98 9 17 84 ul a2424s-2w 24 42 5 99 10 41 100 85 b2403s-2w 3.3 400 40 55 7 26 76 b2405s-2w 5 400 40 102 8 21 80 ul ce b2409s-2w 9 222 23 98 8 28 83 ul ce b2412s-2w 12 167 17 95 7 19 84 ul ce b2415s-2w 15 133 14 95 7 27 84 ul ce b2424s-2w 24 21.6-26.4 note: 1.models listed with strike-through text have been officially discontinued. 2. # for each output. 3. the a_s_1w/b_ls_1w series also are available in our company. input specifications item test conditions min. typ. max. unit 3.3vdc input -0.7 -- 5 5vdc input -0.7 -- 9 12vdc input -0.7 -- 18 15vdc input -0.7 -- 21 input surge voltage (1sec. max.) 24vdc input -0.7 -- 30 vdc input filter capacitance filter output specifications item test conditions min. typ. max. unit output power 0.2 -- 2 w output voltage accuracy see tolerance envelope curve output voltage balance dual output, balanced loads -- 0.5 1.0 line regulation for vin change of 1% -- -- 1.2 3.3vdc output -- 15 20 5vdc output -- 12.8 15 9vdc output -- 8.3 15 12vdc output -- 6.8 15 15vdc output -- 6.3 15 load regulation 10% to 100% load 24vdc output -- 5 15 % temperature drift full load -- -- 0.03 %/ c ripple & noise* 20mhz bandwidth -- 75 150 mvp-p short circuit protection** -- -- 1 s note: 1.dual output models unbalanced load: 5%. 2.* test ripple and noise by parallel cable method. see detailed operation instructions at testing of power converter section, application notes. 3.**supply voltage must be discontinued at the end of short circuit duration.
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2w & b_s-2w b/1-2012 page 3 of 5 common specifications item test conditions min. typ. max. unit isolation voltage tested for 1 minute and leakage current less than 1 ma 1000 -- -- vdc isolation resistance test at 500vdc 1000 -- -- m a2424s-2w, b2424s-2w -- 100 -- isolation capacitance input/output, 100khz/0.1v others -- 30 -- pf switching frequency full load, nominal input -- 75 -- khz mtbf mil-hdbk-217f@25 3500 -- -- k hours case material plastic (ul94-v0) weight -- 2.8 -- g environmental specifications item test conditions min. typ. max. unit storage humidity non condensing -- -- 95 % operating temperature power derating (above 85 ) -40 -- 85 storage temperature -55 -- 125 temp. rise at full load -- 25 -- lead temperature 1.5mm from case for 10 seconds -- -- 300 c cooling free air convection emc specifications emi ce cispr22/en55022 class a external circuit refer to figure1 2 ems esd iec/en61000-4-2 contact 8kv perf. criteria b emc recommended circuit b_s-2w series emi recommended external circuit: vin gnd +vo 0v eut load c1 vin gnd (figure 1) recommended external circuit parameters: vin 5v/15v c1 2.2 f/50v note: product bare input of 12v 24v already meet class a. a_s-2w series emi recommended external circuit: vin gnd +vo -vo eut load ldm c1 vin gnd (figure 2) recommended external circuit parameters: vin 5v c1 4.7 f/50v ldm 4.7 h vin 12v c1 4.7 f/50v vin 15v c1 2.2 f/50v note: product bare input of 3.3v 24v already meet class a. product typical curve tolerance envelope curve +10% +5% 50 100 +2.5% -2.5% -7.5% rated output voltage o u t p u t v o l t a g e ( % ) a c c u r a c y output current percent(%) t y p i c a l l o a d l i n e 70 (nominal input voltage) 120 100 80 60 40 20 0 -40 0 40 85 105120 o u t p u t p o w e r p e r c e n t ( % ) ambient temp.() temperature derating curve safe operating area
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2w & b_s-2w b/1-2012 page 4 of 5 efficiency vs input voltage curve (full load) 0 10 20 30 40 50 60 70 80 90 100 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 input voltage(v) efficiency(%) a0505s-2w b0505s-2w efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) a0505s-2w b0505s-2w efficiency vs input voltage curve (full load) 0 10 20 30 40 50 60 70 80 90 100 22.1 22.6 23.0 23.5 24.0 24.5 25.0 25.4 25.9 26.4 input voltage(v) efficiency(%) a2405s-2w b2405s-2w efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) a2405s-2w b2405s-2w outline dimensions, recommended footprint & packaging dual single ? 1.00 [0.039] 1 5 2 6 vin gnd 0v +vo 4 no pin vin gnd 0v +vo -vo pin single dual footprint details note: unit:mm[inch] pin section tolerances: 0.10mm[ 0.004inch] general tolerances: 0.25mm[ 0.010inch] mechanical dimensions recommended footprint tube outline dimensions note: unit :mm[inch] general tolerances: 0.50mm[ 0.020inch] l=530mm[20.866inch] tube quantity: 25pcs l=220mm[8.661inch] tube quantity: 10pcs (front view) (bottom view) 1 2 5 6 4 1 2 6 4 shorttubeinnerpackagingdimensions: l*w*h=255*170*80mm; shorttubeouterpackaging dimensions (withsixinnerpackagingboxes): l*w*h=375*280*270mm; long tubeinnerpackagingdimensions: l*w*h=580*200*100mm; long tubeouterpackagingdimensions(withtwoinnerpackagingboxes) l*w*h=600*215*220mm; long tubeouterpackagingdimensions(with threeinnerpackagingboxes) l*w*h=600*215*325mm. note: grid 2.54*2.54mm. 9.60 [0.378] 1 2 . 4 0 [ 0 . 4 8 8 ] 1 6 . 9 0 [ 0 . 6 6 5 ] 4.90 [0.193] 19.60 [0.772] 10.00 [0.394] 4.10 [0.161] 2.54 [0.100] 0.30 [0.012] 4 5 1 7.00 [0.276] 0.50 [0.020] 2 0.50 [0.020] 0.90 [0.035] 6 10.16 [0.400]
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2w & b_s-2w b/1-2012 page 5 of 5 test configurations input reflected-ripple current test setup input reflected-ripple current is measured with an inductor lin and capacitor cin to simulate source impedance. dc cin lin dc load oscilloscope current probe lin(4.7 h) cin(220 f, esr < 1.0 at 100 khz) design considerations 1) requirement on output load to ensure this module can operate efficiently and reliably, during operation, the minimum output load could not be less than 10% of the full load. if the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company s products with a lower rated output power (a_s-1w / b_ls-1w series). 2) overload protection under normal operating conditions, the output circuit of these products has no protection against overload. the simplest method is add a circuit breaker to the circuit. 3) recommended circuit if you want to further decrease the input/output ripple, an capacitor filtering network may be connected to the input and output ends of the dc/dc converter, see (figure 3). it should also be noted that the capacitance of filter capacitor must be proper. if the capacitance is too big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the recommended capacitance of its filter capacitor sees (table 1). vin gnd +vo 0v dc cin dc cout cout -vo dual output single output vin gnd +vo 0v dc cin dc cout (figure 3) external capacitor table (table 1) vin (vdc) cin ( f) single vout (vdc) cout ( f) dual vout (vdc) cout # ( f) 3.3/5 4.7 3.3/5 10 5 4.7 12 2.2 9 4.7 9 2.2 15 2.2 12 2.2 12 1 24 1 15 1 15 0.47 -- -- 24 1 24 0.47 note: # for each output. it s not recommended to connect any external capacitor in the application field with less than 0.5 watt output. 4) output voltage regulation and over-voltage protection circuit the simplest device for output voltage regulation, over-voltage and over-current protection is a linear regulator and an capacitor filtering network with overheat protection that is connected to the input or output end in series (figure 4), the recommended capacitance of its filter capacitor sees (table 1), linear regulator based on the actual voltage and current to reasonable selection. vin gnd 0v +vo dc dc -vo reg reg reg vin gnd 0v +vo dc dc reg reg dual output single output (figure 4) 5) cannot use in parallel and hot swap note: 1. operation under minimum load will not damage the converter; however, they may not meet all specification listed. 2. max. capacitive load tested at input voltage range and full load. 3. all date in the datasheet are measured according to nominal input voltage, rated output load, ta=25, humidity<75%, unless otherwise specified . 4. in this datasheet, all the test methods of indications are based on our corporate standards. 5. the performance in the datasheet is just fit for the part number in the selection guide, and may be different from the customer-designed product, you can get more details from mornsun fae. 6. contact us for your specific requirement. 7. specifications subject to change without prior notice. mornsun science & technology co.,ltd. address: no. 5, kehui st. 1, kehui development center, science ave., guangzhou science city, luogang district, guangzhou,p.r.china. tel: 86-20-38601850 fax:86-20-38601272 http://www.mornsun-power.com
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