the copyright and authority for the interpretation of the products are reserved by mornsun ura_ld-15w&ura_ld-20w 2013.06.13-b/1 page 1 of 6 ura_ld-15w & ura_ld-20w series 15/20w, 4:1ultra wide input isolated & regulateddual output dc-dc converter patent protection rohs part number system ura2405ld-20w ratedpower ackage p outputvoltage inputvoltage productseries features efficiency up to 88% ultra wide input range (4:1) high and low temperature characteristics output short circuit protection 1500vdc isolation operating temperature range: -40 ~+85 six-sided metal shield industry standard pinout mtbf>1,000,000 hours industrial level specifications emc application applications ura_ld-15w & ura_ld-20w series offer 15w & 20w of output, ultra wide input voltage: 9-36vdc, 18-75vdc, dual output, and features 1500 vdc isolation, u nder voltage lockout, over current, over voltage and short circuit protection. all models are particularly suitable for industrial, telecommunication, electric power, test equipments applications. selection guide input voltage(vdc) output current (ma) input current (ma)(typ.) model nominal (range) max* output voltage (vdc) max. min. @max. load @no load reflected ripple current (ma,typ.) max. capacitive load # ( f) efficiency (%, typ.) @max. load URA2405LD-15W 5 1500 150 719 7 4800 86 ura2412ld-15w 12 625 62.5 700 17 800 87 ura2415ld-15w 15 500 50 715 29 500 87 ura2405ld-20w 5 2000 200 953 7 4800 84 ura2412ld-20w 12 833 83.3 933 11 800 87 ura2415ld-20w 24 (9-36) 40 15 667 66.7 932 29 30 500 87 ura4805ld-15w 5 1500 150 364 6 4800 84 ura4812ld-15w 12 625 62.5 350 11 800 87 ura4815ld-15w 15 500 50 352 15 500 87 ura4805ld-20w 5 2000 200 481 7 4800 85 ura4812ld-20w 12 833 83.3 470 8 800 87 ura4815ld-20w 48 (18-75) 80 15 667 66.7 480 8 200 500 88 note:1.*input voltage can t exceed this value, or will cause the permanent damage. 2. # for each output. input specifications item test conditions min. typ. max. unit 24vdc input models -0.7 -- 50 input surge voltage (1000 ms) 48vdc input models -0.7 -- 100 24vdc input models -- 8.7 9 start-up voltage 48vdc input models -- 17.6 18 24vdc input models -- -- 9 under voltage shutdown 48vdc input models -- -- 18 vdc start-up time nominal input& constant resistance load -- 10 -- ms models on 3.5 -12vdc or open circuit models off 0-1. 2vdc ctrl * input current (models off) -- -- 1 ma
the copyright and authority for the interpretation of the products are reserved by mornsun ura_ld-15w&ura_ld-20w 2013.06.13-b/1 page 2 of 6 short circuit input power -- -- 3.5 w input filter pi filter note: *the ctrl pin voltage is referenced to gnd. output specifications item test conditions min. typ. max. unit ura_ld-15w series 1.5 -- 15 output power ura_ld-20w series 2 -- 20 w voltage accuracy refer to recommended circuit -- 1 3 output voltage balance dual output, balanced loads -- 0.5 -- line regulation full load, input voltage from low to high -- 0.2 0.5 load regulation 10% to 100% load -- 0.5 1 cross regulation main output 50% supplement output from 25% to 100% load -- -- 5 % transient recovery time -- 200 500 s transient response deviation 25%~ 50%~25% load or 50%~75%~50% load step change -- 3 5 % temperature drift 100% full load -- 0.02 -- %/ c ripple* -- 40 50 noise* 20mhz bandwidth -- 75 100 mvp-p trim -- 10% -- vdc over current protection full input voltage 120 140 150 % 5v output -- 6.1 -- 12v output -- 15 -- over voltage protection 15v output -- 18 -- vdc short circuit protection hiccup, continuous, automatic recovery note: dual output models unbalanced load: 5%. *test ripple and noise by parallel cable method. see detailed operation instructions at dc-dc application notes . common specifications item test conditions min. typ. max. unit isolation voltage tested for 1 minute and leakage current less than 1 ma 1500 -- -- vdc isolation resistance test at 500vdc 1000 -- -- m isolation capacitance input/output,100khz/0.1v -- 2000 -- pf switching frequency full load, nominal input -- 400 -- khz mtbf mil-hdbk-217f@25 1000 -- -- k hours case material aluminum alloy without heatsink -- 28 -- weight with heatsink -- 36 -- g environmental specifications item test conditions min. typ. max. unit storage humidity non condensing 5 -- 95 % operating temperature see temperature derating curve -40 -- 85 storage temperature -55 -- 125 the max. case temperature operating temperature curve range -- -- 105 lead temperature 1.5mm from case for 10 seconds -- -- 300 c cooling free air convection emc specifications ce cispr22/en55022 class b (external circuit refer to figure1- ) emi re cispr22/en55022 class b (external circuit refer to figure1- ) esd iec/en61000-4-2 contact 4kv perf. criteria b eft iec/en61000-4-4 2kv perf. criteria b (external circuit refer to figure1- ) ems surge iec/en61000-4-5 2kv perf. criteria b (external circuit refer to figure1- )
the copyright and authority for the interpretation of the products are reserved by mornsun ura_ld-15w&ura_ld-20w 2013.06.13-b/1 page 3 of 6 emc recommended circuit vin gnd +vo -vo (0v) eut load c2 lcm c0 tvs ldm mov fuse c1 c4 vin gnd c3 (figure1) ura_ld-15w recommended external circuit parameters: model ura24_ld-15w ura48_ld-15w fuse choose according to load mov s10k35 s10k60 ldm 56 h 56 h tvs smcj48a smcj90a ems c0 120 f/50v 120 f/100v c1 4.7 f/50v 1 f/100v lcm 1250 h 1250 h c2 4.7 f/50v 1 f/100v c3 1000pf/2kv 1000pf/2kv emi c4 1000pf/2kv 1000pf/2kv ura_ld-20w recommended external circuit parameters: model ura24_ld-20w ura48_ld-20w fuse choose according to load mov s10k35 s10k60 ldm 56 h 56 h tvs smcj48a smcj90a ems c0 120 f/50v 120 f/100v c1 4.7 f/50v 4.7 f/100v emi c2 -- 4.7 f/100v this common choke lcm has been defined as follow (can be assembled by hand): u core:p5t,14*8*7,base(optical) l:1250 h 25%,dcr:250m ? (max.) u wire: diameter 0.4mm ? a height:11.2mm(max.) ? b terminal length: 4.0mm(max.) ? c terminal pitch: 7.5mm(max.) ? d terminal pitch: 7.5mm(max.) u test condition: 100khz/100mv u recommended through hole: ? 0.9mm u all dimensions in millimeters note: 1. in figure 1,part is ems recommended external circuit, part is emi recommended external circuit. choose according to requirements. 2. if there is no recommended parameters, the model no require the external component. emc recommended circuit pcb layout
the copyright and authority for the interpretation of the products are reserved by mornsun ura_ld-15w&ura_ld-20w 2013.06.13-b/1 page 4 of 6 (figure 2) emi test waveform (class b apply circuit) ura2415ld-20w ura4815ld-20w product typical curve (output voltage 5v) (output voltage>5v) operating temp( c) o u t p u t p o w e r p e r c e n t ( % ) 0 20 40 60 80 100 120 -40 0 40 85 120 65 55 withoutheatsink with heatsink safe operating area 0 20 40 60 80 100 120 -40 0 40 85 120 safe operating area operating temp( ) c o u t p u t p o w e r p e r c e n t ( % ) 75 with heatsink without heatsink 65 efficiency vs input voltage curve (full load) 70 72 74 76 78 80 82 84 86 88 90 9 12 15 18 21 24 27 30 33 36 input voltage(v) efficiency(%) URA2405LD-15W efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 output current percent(%) efficiency(%) URA2405LD-15W efficiency vs input voltage curve (full load) 70 72 74 76 78 80 82 84 86 88 90 18 25 32 39 46 51 58 65 72 75 input voltage(v) efficiency(%) ura4805ld-15w efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 output current percent(%) efficiency(%) ura4805ld-15w
the copyright and authority for the interpretation of the products are reserved by mornsun ura_ld-15w&ura_ld-20w 2013.06.13-b/1 page 5 of 6 efficiency vs output load curve (full load) 70 72 74 76 78 80 82 84 86 88 90 9 12 15 18 21 24 27 30 33 36 input voltage(v) efficiency(%) ura2405ld-20w efficiency vs input voltage curve (full load) 70 72 74 76 78 80 82 84 86 88 90 18 25 32 39 46 51 58 65 72 75 input voltage(v) efficiency(%) ura4805ld-20w efficiency vs output load curve (vin=vin-nominal) 68 70 72 74 76 78 80 82 84 86 88 10 20 30 40 50 60 70 80 90 100 output current percent(%) efficiency(%) ura2405ld-20w efficiency vs output load curve (vin=vin-nominal) 0 10 20 30 40 50 60 70 80 90 100 10 20 30 40 50 60 70 80 90 100 output current percent(%) efficiency(%) ura4805ld-20w outline dimensions, recommended footprint & packaging
the copyright and authority for the interpretation of the products are reserved by mornsun ura_ld-15w&ura_ld-20w 2013.06.13-b/1 page 6 of 6 heatsink assembly & package diagram 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 could not be less than 10% of the full load. if the actual output power is very small, please 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) recommended circuit all the ura_ld-15w&ura_ld-20w series have b een tested according to the following recommended testing circuit before leaving factory. this series should be tested under load. never be tested under no load (see figure 3). if you want to further decrease the output ripple, you can increase capacitance properly or choose capacitors with low esr. however, th e capacitance can t exceed the maximum capacitor load in the list (table 1). vin gnd +vo 0v cin cout dc dc -vo cout dualoutput (figure 3) 3) cannot use in parallel and hot swap external capacitor table (table 1) capacitance vout(vdc) cout # ( f) cin( f) 5 220 12 100 15 100 100 note: # for each output. note: 1. operation under minimum load will not damage the converter; however, they may not meet all specification listed. 2. max. capacitive load tested at input voltage range and full load. 3. all specifications measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 4. in this datasheet, all the test methods of indications are based on our corporate standards. 5. all characteristics are for listed model only, non-standard models may perform differently, please contact our technical person for more detail. 6. contact us for your specific requirement. 7. specifications subject to change 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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