dc/dc converte r b_(x)t-w2 series 201 4 .05.22-b/2 page 1 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 0.25w, fixed input voltage, isolated & unregulated single output patent protection rohs features z t emperature range: -40 +85 z good temperature characteristic z isolation v oltage: 1k v dc z smd package z internal surface mounted design z international standard pin-out b_(x)t-w2 series is specially designed for applications where an isolated voltage is required in a distributed power supply system. it is suitable for 1.where the voltage of the input power supply is stable (voltage variation: 10%vin); 2.where isolation is necessary between input and output (isolation voltage 1000vdc); 3.where do not has high requirement of line regulation , load regulation and the ripple & noise of the output voltage; such as: pure digital circuits, low frequency analog circuits, and igbt power device driving circuits. selection guide part no. input voltage (vdc) output efficiency (%, min./t yp.) @fullload max. capacitive load ( f) nominal (range) output voltage (vdc) output current (ma) (max./min.) b0303(x)t-w2 3.3 (2.97-3.63) 3.3 76/8 57/61 220 b0305t-w2 5 50/5 58/62 b0312t-w2 12 21/3 59/63 b0503(x)t-w2 5 (4.5-5.5) 3.3 76/8 58/62 b0505(x)t-w2 5 50/5 60/64 b0509(x)t-w2 9 28/3 61/65 b0512t-w2 12 21/3 63/67 b0515t-w2 15 17/2 61/65 b0524t-w2 24 10/1 62/66 B1203T-W2 12 (10.8-13.2) 3.3 76/8 56/60 b1205t-w2 5 50/5 60/64 b1209t-w2 9 28/3 60/64 b1212t-w2 12 21/3 59/63 b2403t-w2 24 (21.6-26.4) 3.3 76/8 56/60 b2405t-w2 5 50/5 56/60 b2409t-w2 9 28/3 57/61 b2412t-w2 12 21/3 59/63 b2415t-w2 15 17/2 61/65 input specifications item operating conditions min. typ. max. unit input current (full load / no-load) 3.3 v input -- 125/50 -- m a 5v input -- 81/25 -- 12v input -- 35/10 -- 24 v input -- 18/8 -- surge v oltage (1sec. max.) 3.3 v input -0.7 -- 6 v dc 5v input -0.7 -- 9 12v input -0.7 -- 18 24 v input -0.7 -- 30
dc/dc converte r b_(x)t-w2 series 201 4 .05.22-b/2 page 2 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation reflected ripple current 3.3v/5v input -- 20 -- m a 12v/24v input -- 5 -- input filter capacitor filter output specifications item operating conditions min. typ. max. unit output v oltage a ccuracy see t olerance envelope graph (fig. 1) line regulation input voltage change: 1% 3.3v output -- -- 1.5 -- other output -- -- 1.2 load regulation 10%-100% load 3.3 v output -- 15 20 % 5v output -- 12 15 9 v output -- 9 12 v output -- 8 15 v output -- 7 24 v output -- 6 ripple & noise* 20mhz bandwidth -- 50 75 mvp-p temperature drift coefficient 100% load -- -- 0.03 % / output short circuit protection** -- -- 1 s note: * ripple and noise tested with ?parallel cable? method, please see dc-dc converter application notes for specific operation methods. ** supply voltage must be discontinue d at the end of short circuit duration. general specifications item operating conditions min. typ. max. unit isolation v oltage input-output, w ith t he t est t ime of 1 minute and t he leak current lower t han 1ma 1000 -- -- v dc isolation resistance input-output, isolation v oltage 500vdc 1000 -- -- m ? operating temperature derating i f t he t emperature 85 , (see fig. 2) -40 -- 85 storage temperature -55 -- 125 casing temperature rise ta=25 -- 15 -- pin w elding resistance temperature w elding spot is 1.5mm away from t he casing, 10 seconds -- -- 300 reflow soldering temperature peak t emp. 245 ,maximumduration t ime 60s at 217 . for actual application, please refer t o ipc/jedec j -std-020d.1. storage humidity non-condensing -- -- 95 % switching frequency 100% load, nominal input v oltage 24v input -- 500 -- khz other input -- 110 -- mtbf mil-hdfk-217f@25 3500 -- -- k hours physical specifications casing material black flame-retardant heat-proof epoxy resin (ul94-v0) package dimensions 12.70*11.20*6.25 mm weight 1.4 g (typ.) cooling method free air convection product characteristic curve t olerance envelope graph +10% +5% 50 100 +2.5% -2.5% -7.5% rated output voltage output voltage (%) accuracy output current percentage(%) t y p i c a l l o a d c u r v e 70 (nominal input voltage) fig. 1 120 100 80 60 40 20 0 -40 0 40 85 105 120 output power percentage(%) am bi ent temperature( ) safe operating area temperature derating graph fig. 2
dc/dc converte r b_(x)t-w2 series 201 4 .05.22-b/2 page 3 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation desi g n reference 1. typical application if it is required to further reduce input and output ripple, a filter capacitor can be connected to the input and output terminals, see fig.3. moreover, choosing suitable filter capacitor is very important, sta rt-up problems may be caused by too large capacitance. to ensured the modules running well, the recommended capacitive load values as shown in table 1. 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 (see fig.4) vin gnd +vo 0v dc cin dc cout fig.3 vin gnd 0v +vo dc dc reg reg fig.4 recommended capacitive load value table (table 1) vin(vdc) cin( f) vo (vdc) cout( f) 3.3/5 4.7 3.3/5 10 12 2.2 9 4.7 24 1 12 2.2 -- -- 15 1 -- -- 24 0.47 2. output load requirements to ensure the module work efficiently and reliably, during the operation, the min. output load should be no less than 10% of the full load. if the actual output power is low, please connect a resister to the output terminal in parallel, with a recommenced resistance which is 10% of the rated power, and derating is required during operation. 3. for more information please find the application notes on www.mornsun-power.com dimensions and recommended layout
dc/dc converte r b_(x)t-w2 series 201 4 .05.22-b/2 page 4 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation notes: 1. packing information please refer to 'product packing information'. packing bag number: 58200021; 2. if the product is operated under the min. required load, the product performance cannot be guaranteed to comply with all performance indexes in this datasheet; 3. the max. capacitive load should be tested within the input voltage range and under full load conditions; 4. unless otherwise specified, data in this datasheet should be tested under the conditions of ta=25 c, humidity<75% when inputting nominal voltage and outputting rated load; 5. all index testing methods in this datasheet are based on our company?s corporate standards; 6. the performance indexes of the product models listed in this manual are as above, but some indexes of non-standard model products will exceed the above-mentioned requirements, and please directly contact our technicians for specific information; 7. we can provide product customization service; 8. specifications of this product are subject to changes without prior notice. mornsun guangzhou 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: 86-20-38601850-8801 fax: 86-20-38601272 e-mail: info@mornsun.cn
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