the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2wr2 & b_s-2wr2 2013.06.18- a/1 page 1 of 5 a_s-2wr2 & b_s-2wr2 series 2w, fixed input, isolated & unregulated dual/single output dc-dc converter patent protected rohs part number system a0505s-2wr2 features miniature sip package efficiency up to 89% high power density 1500vdc isolation operating temperature range: -40 ~+105 no external component required industry standard pinout applications the a_s-2wr2 & b_s-2wr2 series are designed for application where isolated output is required from a distributed power system. these products apply to where: 1) input voltage rang : 10%vin; 2) 1500vdc input and output isolation; 3) regulated and low ripple noise is not required. such as: digital circuits, low frequency analog circuits, and relay drive circuit. selection guide input voltage(vdc) output current (ma) input current (ma)(typ.) model nominal (range) output voltage (vdc) max. max. @max. load @no load reflected ripple current (ma,typ.) max. capacitive load ( f) efficiency (%, typ.) @max. load a0503s-2wr2 3.3 303 30 540 74 a0505s-2wr2 5 200 20 500 80 a0512s-2wr2 12 83 8 476 84 a0515s-2wr2 15 67 7 476 84 a0524s-2wr2 24 42 4 476 100 84 b0503s-2wr2 3.3 400 40 476 84 b0505s-2wr2 5 400 40 450 89 b0512s-2wr2 12 167 17 476 84 b0515s-2wr2 15 133 13 476 84 b0524s-2wr2 5 (4.5-5.5) 24 83 8 476 25 220 84 a1203s-2wr2 3.3 200 20 208 80 a1205s-2wr2 5 200 20 198 84 a1212s-2wr2 12 83 8 196 85 a1215s-2wr2 15 67 7 198 100 84 b1203s-2wr2 3.3 400 40 198 84 b1205s-2wr2 5 400 40 198 84 b1212s-2wr2 12 167 17 198 84 b1215s-2wr2 12 (10.8-13.2) 15 133 13 198 15 220 84 a1515s-2wr2 15 (13.5-16.5) 15 67 7 157 10 85 A2403S-2WR2 3.3 200 20 104 80 a2405s-2wr2 5 200 20 99 84 a2412s-2wr2 12 83 8 99 84 a2415s-2wr2 15 67 7 99 100 84 b2403s-2wr2 3.3 400 40 99 84 b2405s-2wr2 24 (21.6-26.4) 5 400 40 99 8 15 220 84
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2wr2 & b_s-2wr2 2013.06.18- a/1 page 2 of 5 b2412s-2wr2 12 167 17 99 84 b2415s-2wr2 15 133 13 99 84 b2424s-2wr2 24 (21.6-26.4) 24 83 8 98 8 15 220 85 note: for each output. input specifications item test conditions min. typ. max. unit 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 voltage accuracy see tolerance envelope curve 3.3v output -- -- 1.5 line regulation for vin change of 1% others -- -- 1.2 3.3v output -- 18 -- 5v output -- 12 -- 12v output -- 8 -- 15v output -- 7 -- load regulation 10% to 100% load 24v output -- 6 -- % temperature drift full load -- -- 0.03 %/ c output voltage 12v -- 60 -- ripple & noise* 20mhz bandwidth output voltage:15v,24v -- 75 -- mvp-p short circuit protection continuous, automatic recovery note: * ripple and noise tested by parallel cable method. see detailed operation instructions at dc-dc application notes. common specifications item test conditions min. typ. max. unit isolation voltage input-output, tested for 1 minute and leakage current less than 1 ma 1500 -- -- vdc isolation resistance input-output, test at 500vdc 1000 -- -- m isolation capacitance input-output,100khz/0.1v -- 20 -- pf switching frequency 100% load, input voltage range -- 100 300 khz mtbf mil-hdbk-217f@25 3500 -- -- k hours case material plastic (ul94-v0) weight -- 2.4 -- g environmental specifications item test conditions min. typ. max. unit storage humidity non condensing -- -- 95 % operating temperature power derating (above 85 , see figure 2) -40 -- 105 storage temperature -55 -- 125 temp. rise at full load ta=25 c -- 25 -- lead temperature 1.5mm from case for 10 seconds -- -- 300 c cooling free air convection emc specifications ce cispr22/en55022 class b recommended circuit refer to figure1 emi re cispr22/en55022 class b recommended circuit refer to figure1 a_s-2wr2 iec/en61000-4-2 contact 6kv perf. criteria b ems esd b_s-2wr2 iec/en61000-4-2 contact 8kv perf. criteria b
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2wr2 & b_s-2wr2 2013.06.18- a/1 page 3 of 5 emc recommended circuit emi typical recommended circuit (class b): vin gnd +vo -vo () 0v eut load ldm c0 vin gnd (figure1) recommended external circuit parameters: vin(v) 5/12/15/24 c0 4.7 f /50v emi ldm 6.8 h emi test waveform (recommended circuit fingure 1) a0512s-2wr2 ce(class b, positive line) a0512s-2wr2 ce(class b , negative line) b2415s-2wr2 ce(class b, positive line) b2415s-2wr2 ce(class b , negative line) 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 85105 120 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 (figure2) efficiency vs input voltage curve (full load) 50 55 60 65 70 75 80 85 90 95 100 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 input voltage(v) efficiency(%) b0505s-2wr2 efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) b0505s-2wr2
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2wr2 & b_s-2wr2 2013.06.18- a/1 page 4 of 5 efficiency vs input voltage curve (full load) 50 55 60 65 70 75 80 85 90 95 100 11.0 11.2 11.3 11.8 12.0 12.2 12.5 12.8 13.0 13.2 input voltage(v) efficiency(%) b1212s-2wr2 efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 102030405060708090100 total output current (%) efficiency(%) b1212s-2wr2 dimensions, recommended footprint & packaging 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 is not less than 10% o f the full load. if the actual output power is very small, ple ase 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. 2) overload protection under normal operating conditions, the output circuit of these products has no protection against overload. the simplest method is to add a circuit breaker to the circuit.
the copyright and authority for the interpretation of the products are reserved by mornsun a_s-2wr2 & b_s-2wr2 2013.06.18- a/1 page 5 of 5 3) recommended circuit if you want to further decrease the input/output ripple, a 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. i f 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) 5 4.7 3.3/5 10 3.3/ 5 4.7 12 2.2 12 2.2 12 1 15 2.2 15/24 1 15/ 24 0.47 24 1 -- -- -- -- 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) the input and the output of the product are recommended to be connected to ceramic capacitor or electrolytic capacitor. using tantalum capacitor may cause risk of failure 5) it is not recommended to increase the output power capability by connecting two or more converters in parallel. the product is not hot-swappable note: 1. operation under minimum load will not damage the converter; however, they may not meet all specifications. 2. max. capacitive load is tested at nominal input voltage and full load. 3. unless otherwise noted, all specifications are measured at ta=25 c, humidity<75%, nominal input voltage and rated output load. 4. in this datasheet, all test methods are based on our corporate standards. 5. all characteristics are for listed models, and non-standard models may perform differently. please contact our technical support for more detail. 6. please contact our technical support for any specific requirement. 7. specifications of this product are subject to changes 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 e-mail: info@mornsun.cn http://www.mornsun-power.com
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