dc/dc converte r b_xt-w2r2 series 201 4 .05.22- a /1 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 continuous short circuit protection z efficiency up to 79% z operating t emperature range: -40 t o+105 z isolation voltage: 1.5k vdc z ultra-low ripple & noise z miniature smd package z internal surface mounted design z international standard pin-out b_xt-w2r2 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 1500vdc); 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 relay-driven 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.) b0503xt-w2r2 5 (4.5-5.5) 3.3 76/8 69/74 220 b0505xt-w2r2 5 50/5 74/79 b1205xt- w2r2 12 (10.8-13.2) 5 50/5 74/79 b1212xt- w2r2 12 21/2 74/79 b2405xt- w2r2 24 (21.6-26.4) 5 50/5 66/71 input specifications item operating conditions min. typ. max. unit input current (full load / no-load) 5v input -- 68/15 -- m a 12v input -- 27/10 -- 24 v input -- 15/8 -- surge v oltage (1sec. max.) 5v input -0.7 -- 9 v dc 12v input -0.7 -- 18 24 v input -0.7 -- 30 reflected ripple current 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 v oltage change: 1% 3.3v output -- -- 1.5 -- 5v/12v output -- -- 1.2 load regulation 10%-100% load 3.3 v output -- 15 20 % 5v output -- 12 15 12v output -- 7 10 ripple & noise* 20mhz bandwidth -- 10&20 -- mvp-p temperature drift coefficient 100% load -- -- 0.03 % / output short circuit protection continuous, self-recovery note: * ripple and noise tested with ?parallel cable? method, please see dc-dc converter application notes for specific operation methods.
dc/dc converte r b_xt-w2r2 series 201 4 .05.22- a /1 page 2 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 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 1500 -- -- v dc isolation resistance input-output, isolation v oltage 500vdc 1000 -- -- m ? isolation capacitance input-output, 100khz/0.1v -- 20 -- pf operating temperature derating i f t he t emperature 100 (see fig. 2) -40 -- 105 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 -- 100 300 khz 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*7.25 mm weight 1.5 g (typ.) cooling method free air convection emc specifications emi conducted disturbance cispr22/en55022 cl ass b (see fig. 5 for recommended circuit) radiated emission cispr22/en55022 clas s b (see fig. 5 for recommended circuit) ems electrostatic discharge iec/en61000-4-2 contac t 6kv perf. criteria b product characteristic curve tolerance env elope 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 40 100 105 output power percent(%) en vi ron ment te mp.( ) temperature derating curve safe operating area fig. 2 b0505xt-w2r2 50 55 60 65 70 75 80 85 90 95 100 4.6 4.7 4.8 4.9 5 5.1 5.2 5.3 5.4 5.5 efficiency(%) input voltage(v) efficiency vs input voltage (full load) b0505xt-w2r2 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 efficiency(%) output current percentage (%) efficiency vs output load(vin=5 v )
dc/dc converte r b_xt-w2r2 series 201 4 .05.22- a /1 page 3 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation B1205XT-W2R2 50 55 60 65 70 75 80 85 90 95 100 11.0 11.4 11.6 11.8 12.0 12.2 12.4 12.6 12.8 13.2 efficiency(%) input voltage(v) efficiency vs input voltage (full load) B1205XT-W2R2 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 efficiency(%) output current percentage (%) efficiency vs output load(vin=12 v ) 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 voltage regulator 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) 5 4.7 3.3/5 10 12 2.2 12 2.2 24 1 -- -- 2. emc typical recommended circuit vin gnd +vo 0v dc/dc load ldm c1 vin gnd c2 fig. 5 input voltage (vdc) 5/12/24 emi c1 4.7 f /50v c2 refer to the cout in fig.3 ldm 6.8 h 3. 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. 4. for more information please find the application notes on www.mornsun-power.com
dc/dc converte r b_xt-w2r2 series 201 4 .05.22- a /1 page 4 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation dimensions and recommended layout notes: 1. packing information please refer to 'product packing information'. packing bag number: 58210023; 2. if t he product is operated under t he min. required load, t he product performance cannot be guaranteed t ocomply w ith 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
|
