dc/dc converter a_(x)t-1w series 201 4 .05.20-b/4 page 1 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation selection guide part no. input voltage (vdc) output efficiency (%, min./t yp.) @ full load max. capacitive load ( f) certification nominal (range) output voltage (vdc) output current (ma)(max./min.) A0305XT-1W 3.3 (2.97-3.63) 5 100/10 67/71 100 a0312t-1w 12 42/4.2 75/79 a0315t-1w 15 33/3.3 75/79 a0505(x)t-1w 5 (4.5-5.5) 5 100/10 67/71 ul a0509(x)t-1w 9 56/5.6 73/77 ul a0512(x)t-1w 12 42/4.2 74/78 ul a0515(x)t-1w 15 33/3.3 74/78 ul a1205(x)t-1w 12 (10.8-13.2) 5 100/10 67/71 ul a1209(x)t-1w 9 56/5.6 69/73 ul a1212(x)t-1w 12 42/4.2 70/74 ul a1215(x)t-1w 15 33/3.3 70/74 ul a1515(x)t-1w 15 (13.5-16.5) 15 33/3.3 75/79 a2405(x)t-1w 24 (21.6-26.4) 5 100/10 68/72 ul a2409t-1w 9 56/5.6 70/74 a2412(x)t-1w 12 42/4.2 72/76 a2415(x)t-1w 15 33/3.3 73/77 a2424(x)t-1w 24 21/2.1 74/78 notes: 1. the a_xt-1w series have no 3,6,8,9 pin. for example a0505xt-1w. 2.thecapacitiveloadsofpositiveandnegativeoutputsareidentical. input specifications item operating conditions min. typ. max. unit input current (full load / no-load) 3.3vinput -- 4 20/40 -- m a 5v input -- 250/30 -- 12v input -- 110/20 -- 15v input -- 80/11 -- 24v input -- 57/7 -- surge v oltage (1sec. max.) 3.3v input -0.7 -- 5 v dc 5v input -0.7 -- 9 12v input -0.7 -- 18 1w, fixed input, isolated & unregulated dual output patent protection rohs features z efficiency up to 79% z operating temperature range: -40 ~+85 z isolation v oltage: 1k v dc z smd package z internal surface mounted design z international standard pin-out a_(x)t-1w 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.
dc/dc converter a_(x)t-1w series 201 4 .05.20-b/4 page 2 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation surge v oltage (1sec. max.) 15v input -0.7 -- 21 v dc 24v input -0.7 -- 30 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% -- -- 1.2 -- load regulation 10%-100% load 5vdc output -- 12 -- % 9vdc output -- 8 -- 12vdc output -- 7 -- 15vdc output -- 6 -- 24vdc output -- 5 -- ripple & noise* 20mhz bandwidth -- 50 75 mvp-p temperature drift coefficient 100% load -- -- 0.03 % / output short circuit protection -- -- 1 s note: 1.dual output models unbalanced load: 5%. 2.ripple and noise tested with ?parallel cable? method, please see dc-dc converter application notes for specific operation methods. 3.supply voltage must be discontinued 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 isolation capacitance input-output, 100khz/0.1v a 2424(x)t-1w -- 100 -- pf other models -- 30 -- operating temperature derating i f t he t emperature 85 (see fig. 2) -40 -- 85 storage temperature -55 -- 125 casing temperature rise ta=25 -- 25 -- 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(3.3v/5v/12v) -- 100 -- khz 100% load, nominal input v oltage(15v/24v) -- 500 -- mtbf mil-hdfk-217f@25 3500 -- -- k hours physical specifications casing material black flame-retardant heat-proof epoxy resin (ul94-v0) package dimensions 15.24*11.20*6.50 mm weight 1.7 g(typ.) cooling method free air convection emc specifications emi conducted disturbance cispr22/en55022 class a (see fig. 5 for recommended circuit) ems electrostatic discharge iec/en61000-4-2 contact 6kv perf. criteria b
dc/dc converter a_(x)t-1w series 201 4 .05.20-b/4 page 3 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation product characteristic curve t olerance envelope curve +10% +5% 50 100 +2.5% -2.5% -7.5% rated output vo ltag e output voltage (%) accuracy output current percent(%) t y p i c a l l o a d l i n 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 te mperat ure ( ) safe operating area temperature derating graph fig. 2 a0505(x)t-1w 50 55 60 65 70 75 80 85 90 95 100 4.60 4.70 4.80 4.90 5.00 5.10 5.20 5.30 5.40 5.50 efficiency(%) input voltage (v) efficiency vs input voltage (full load) a0505(x)t-1w 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=vin-nominal) a2405(x)t-1w 50 55 60 65 70 75 80 85 90 95 100 22.00 22.50 23.00 23.50 24.00 24.50 25.00 25.50 26.00 26.50 efficiency(%) input voltage (v) efficiency vs input voltage (full load) a2405(x)t-1w 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=vin-nominal) 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 , start-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. vin gnd +vo 0v dc cin dc cout cout -vo fig. 3 vin gnd 0v +vo dc dc -vo reg reg reg fig.4 recommended capacitive load v alue t able (table 1) vin (vdc) cin ( f) vout (vdc) cout ( f) 3.3 4.7 5 4.7 54.792.2 12 2.2 12 2.2 15 2.2 15 1 24 1 24 0.47 it is not recommended to connect any external c apacitor when output power is less than 0.5w.
dc/dc converter a_(x)t-1w series 201 4 .05.20-b/4 page 4 of 4 mornsun guangzhou science & technology co., ltd. reserves the copyright and right of final interpretation 2.emc typical recommended circuit v in gnd +vo 0v eut load c1 cy vin gnd -vo fig.5 input voltage (vdc) 15 24 emi c1 2.2 f /50v 4.7 f /50v cy 100pf/2000v 100pf/2000v note: product bare input of 3.3v,5v,12v already meet class a. 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 t h e actual output power is low, please connect a resister to the output terminal in parallel, with a recommenced resistance which is 10% of t h e rated power, and derating is required during operation, or use our company?s products with a lower rated output power (a_(x)t-w2 series). 4. for more information please find the application notes on www.mornsun-power.com dimensions and recommended layout notes: 1. packing information please refer to 'product packing information'. packing bag number: 58200019; 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
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