dc/dc converte r a_xt-1wr2 series 2015.04.15- a /2 page 1 of 5 mornsun guangzhou science & technology co., ltd. reserv es the copyright and right of final interpretation 1w, fixed input voltage, isolated & unregulated dual output patent protection rohs features z operating temperature range: -40 to +105 z high efficiency up to 82% z miniature smd package z isolation voltage: 1.5k vdc z internal surface mounted design z no external component required z international standard pin-out a_xt-1wr2 series are specially designed for applications where an isolated voltage is required in a distributed power supply system. they are suitable for 1. where the voltage of the input power supply is stable (voltage variation: 10%vin); 2. where isolation between input and output is necessary (isolation voltage 1500vdc); 3. where the output voltage regulation is not strictly required; 4. typical application: preceding-stage interference isolation condition; ground-interference canceled condition; digit circuit condition; voltage-isolation converting condition; normal low-frequency ar tificial circuit condition; relay drive circuit condition, etc. selection guide certification part no. input voltage (vdc) output efficiency (%,min./typ.) @fullload max. capacitive load ( f) nominal (range) output voltage (vdc) output current (ma)(max./min.) ce a0305xt-1wr2 3.3 (2.97-3.63) 5 100/10 72/76 100 a0312xt-1wr2 12 42/5 73/77 a0315xt-1wr2 15 33/3 74/78 a0505xt-1wr2 5 (4.5-5.5) 5 100/10 76/80 a0509xt-1wr2 9 56/6 76/80 a0512xt-1wr2 12 42/5 75/79 a0515xt-1wr2 15 33/3 77/81 a0524xt-1wr2 24 21/2 77/81 a1205xt-1wr2 12 (10.8-13.2) 5 100/10 76/80 a1209xt-1wr2 9 56/6 76/80 a1212xt-1wr2 12 42/5 77/81 a1215xt-1wr2 15 33/3 77/81 a1224xt-1wr2 24 21/2 77/81 a1515xt-1wr2 15 (13.5-16.5) 15 33/3 77/81 a2405xt-1wr2 24 (21.6-26.4) 5 100/10 76/80 a2409xt-1wr2 9 56/6 76/80 a2412xt-1wr2 12 42/5 77/81 a2415xt-1wr2 15 33/3 78/82 a2424xt-1wr2 24 21/2 74/80 note: *the capacitive loads of positive and negative outputs are identical. input specifications item operating conditions min. t yp. max. unit input current (full load / no-load) 3.3v input -- 389/25 --/70 m a 5v input -- 250/20 --/60 12v input -- 104/15 --/50 15v input -- 83/12 --/35 24v input -- 52/10 --30 reflected ripple current -- 15 -- m a
dc/dc converte r a_xt-1wr2 series 2015.04.15- a /2 page 2 of 5 mornsun guangzhou science & technology co., ltd. reserv es the copyright and right of final interpretation surge v oltage (1sec. max.) 3.3v input -0.7 -- 5 v dc 5v input -0.7 -- 9 12v input -0.7 -- 18 15v input -0.7 -- 21 24v input -0.7 -- 30 input filter filter capacitor hot plug unavailable output specifications item operating conditions min. t yp. max. unit output v oltage a ccuracy see t olerance envelope curve(fig. 1) line regulation input v oltage change: 1% -- -- 1.2 -- load regulation 10%-100% load 5vdc output -- 12 -- % 9vdc output -- 9 -- 12vdc output -- 8 -- 15vdc output -- 7 -- 24vdc output -- 6 -- ripple & noise * 20mhz bandwidth -- 60 150 mvp-p temperature coefficient full load -- -- 0.03 % / short circuit protection ** a 24x x x t-1wr2/a0524xt-1wr2 -- -- 1 s others continuous, self-recovery note: *ripple and noise are measured by ?parallel cable? method, please see dc-dc converter application notes for specific operation; **supply voltage must be discontinued at the end of short circuit duration for a0524xt-1wr2 model and a24xxxt-1wr2 series. general specifications item operating conditions min. t yp. 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 w hen operating t emperature up t o100 ,(see fig. 2) -40 -- 105 storage temperature -55 -- 125 casing temperature rise ta=25 , nominal input, full load output -- 25 -- pin w elding resistance temperature w elding spot is 1.5mm away from t he casing, 10 seconds -- -- 300 storage humidity non-condensing -- -- 95 % rh 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. switching frequency full load, nominal input v oltage -- 100 -- khz mtbf mil-hdfk-217f@25 3500 -- -- k hours physical specifications casing material epoxy resin (ul94-v0) dimensions 15.24*11.20*7.25 mm weight 2.0g (typ.) cooling method free air convection emc specifications emi ce cispr22/en55022 class b (see fig. 5 for recommended circuit) re cispr22/en55022 class b (see fig. 5 for recommended circuit) ems esd iec/en61000-4-2 contact 6kv perf. criteria b
dc/dc converte r a_xt-1wr2 series 2015.04.15- a /2 page 3 of 5 mornsun guangzhou science & technology co., ltd. reserv es the copyright and right of final interpretation product characteristic curve -10% 80% 20% 10% 40% 60% -5% 0 +5% +10% +15% 100% t y p . m i n . m a x . -7.5% -2.5% +2.5% output current percent(%) (nominal input voltage) output voltage (%) accuracy tolerance envelope curve fig. 1 120 100 80 60 40 20 0 -40 0 40 80 100 105 output power percentage(%) am bi ent te mperat ure( ) safe operating area te m p e r a tu r e d e r a ti ng c ur v e fig. 2 a0505xt-1wr2 50 55 60 65 70 75 80 85 90 95 100 4.5 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) a0505xt-1wr2 0 10 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=5v) a1205xt-1wr2 50 55 60 65 70 75 80 85 90 95 100 10.8 11.1 11.4 11.7 12.0 12.3 12.6 12.9 13.2 efficiency(%) input voltage(v) efficiency vs input voltage (full load) a1205xt-1wr2 0 10 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=12v) desi g n reference 1. typical application circuit if it is required to further reduce input and output ripple, a filter ca pacitor may be connected to the input and output terminals, see fig.3. moreover, choosing a suitable filter capacitor is very important, start-up problems may be caused if the capacitance is too large. under the condition of safe and reliable operation, the recommended capacitive load values are 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 cout -vo fig.3 vin gnd 0v +vo dc dc -vo reg reg reg fig.4
dc/dc converte r a_xt-1wr2 series 2015.04.15- a /2 page 4 of 5 mornsun guangzhou science & technology co., ltd. reserv es the copyright and right of final interpretation recommended capacitive load value table (table 1) vin(vdc) cin( f) vo (vdc) cout( f) 3.3 4.7 5 4.7 5 4.7 9 2.2 12 2.2 12 1 15 2.2 15 1 24 1 24 0.47 2. emc solution-re commended circuit vin gnd +vo -vo dc/dc load ldm c1 vin gnd c2 cy fig. 4 input voltage (vdc) 3.3/5/12 15/24 emi c1 4.7 f /50v c2 refer to the cout in fig.3 ldm 6.8 h cy -- 1nf /2kv note: 1. 24v input series, 24v output series is subject to cy (cy : 1nf/2kv). 2. it is not needed to add the component in the peripheral circuit when parameter with the symbol of "--". 3. output load requirements when using, the minimum load of the module output should not be less than 10% of the nominal load. in order to meet the performance parameters of this datasheet, please connect a 10% dummy load in parallel at the output end, the dummy load is generally a resistor, please note that the resistor needs to be used in derating. 4. for more information please find dc-dc converter application notes on www.mornsun-power.com dimensions and recommended layout 2ext1war201-a0 note:grid2.54*2.54mm note: unit:mm[inch] pinsectiontolerances:0.10[0.004] generaltolerances:0.25[0.010 ] nc:noconnection a 15.240.50[0.6000.020] 7.25[0.285] 7.00[0.276] 0.88[0.035] 15 7 10 0 ~ 5 0.25[0.010] 4 2 8.30[0.327] topview frontview rightview 15 7 10 24 function pin pin-out topview 1 4 -vo 5 0v vin 2 10 7 gnd +vo nc 1.00[0.039] 2.54[0.100] 2.10[0.083] 11.200.30[0.4410.012] 12.20[0.480] 0.60[0.024] 2.54[0.100] 10.16[0.400] 10.16[0.400] a 0.10 thirdangleprojection
dc/dc converte r a_xt-1wr2 series 2015.04.15- a /2 page 5 of 5 mornsun guangzhou science & technology co., ltd. reserv es the copyright and right of final interpretation notes: 1. packing information please refer to product packing information which can be downloaded from www.mornsun-power.com .packing bag number: 58210024; 2. if the product is not operated within the required load range, the product performance cannot be guaranteed to comply with all parameters in the datasheet; 3. the maximum capacitive load offered w ere t ested at nominal input v oltage and full load; 4. unless otherwise specified, parameters in this datasheet were measured under the conditions of ta=25 , humidity<75% with nominal input voltage and rated output load; 5. a ll inde x t esting methods in t his datasheet are based on our company?s corporate standards; 6. the performance parameters of the product models listed in this manual are as above, but some parameters of non-standard model products may exceed the requirements mentioned above. please contact our technicians directly for specific information; 7. w e can provide product customization service; 8. specifications are subject to change 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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