the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. urb_ld-15w 2013.05.31-a/4 page 1 of 3 urb_ld-15w series 15w, wide input , isolated & regulated single output dc-dc converter rohs features product program input output voltage (vdc) model nominal range max. (1) voltage (vdc) current (2) (ma) efficiency (%, typ.) capacitor load (3) (max, f) urb2403ld-15w 3.3 4000 80 10200 URB2405LD-15W 5 3000 82 4020 urb2412ld-15w 12 1250 85 1035 urb2415ld-15w 24 9-36 40 15 1000 85 705 urb4803ld-15w 3.3 4000 81 10200 urb4805ld-15w 5 3000 83 4020 urb4812ld-15w 12 1250 85 1035 urb4815ld-15w 48 18-75 80 15 1000 85 705 note: add suffix h for heatsink mounted, for example URB2405LD-15Wh. input specifications item test conditions min. typ. max. units 24 vin models -- -- 9 start-up voltage 48 vin models -- -- 18 vdc input filter lc start-up time -- 10 -- ms models on 3.5 - 40vdc or open circuit ctrl (4) models off 0 - 1.2vdc output specifications item test conditions min. typ. max. units output power see product program 1.5 -- 15 w output voltage accuracy refer to recommended circuit -- 1 3 load regulation from 10% to 100% load -- 0.5 1 line regulation input voltage from low to high -- 0.2 0.5 % ripple and noise 20mhz bandwidth 55 75 150 mv transient recovery time -- 200 500 us transient peak deviation 25%~50%~25% load or 50 %~75%~50% load step change -- 2 5 % over current protection input voltage range 120 130 150 % 3.3v output models -- 3.9 -- 5v output models -- 6.2 -- 12v output models -- 15 -- over voltage protection 15v output models -- 18 -- vdc output short circuit input voltage range hiccup, automatics recovery trim -- 10%vo -- vdc temperature drift (vout) refer to recommended circuit -- 0.02 -- %/ c efficiency up to 85% 4:1 wide input voltage range 1.5kvdc input/output isolation short circuit protection (automatic recovery) operating temperature: -40 c ~ +85 c internal smd construction metal shielding package industry standard pinout mtbf>1,000,000 hours rohs compliance application the urb_ld-15w series offer 15w of output, with 4:1 wide input voltage of 9-36vdc, 18-75vdc and features 1500vdc isolation, over current, over voltage and short-circuit protection, as well as six sided shielding. all models are particularly suited to industrial, tele-communications, test equipments power. model selection URB2405LD-15W rated power package output voltage input voltage product series 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
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. urb_ld-15w 2013.05.31-a/4 page 2 of 3 common specifications recommended circuit item test conditions min. typ. max. units operating temperature -40 -- 85 storage temperature -55 -- 125 c storage humidity 5 -- 95 % cooling free air convection maximum case temp. on working temperature -- -- 105 lead temperature 1.5mm from case for 10 seconds -- -- 300 c isolation voltage tested for 1 minute and 1ma max 1500 -- -- vdc isolation resistance test at 500vdc 1000 -- -- m isolation capacitance 100khz /0.1v -- 1000 -- pf switching frequency nominal, full load -- 300 -- khz mtbf m1l-hdbk-217f 1000 -- -- k hours case material aluminum alloy weight -- 28 -- g 1) recommended circuit vin gnd +vo 0v dc dc cin cout (fig.1) in order to obtain better performance for the dc/dc models. it s recommended that use input and output filters as fig.1 shown. 2) recommended capacitance capacitance output voltage cout cin( 24v,48v input) 3.3v,5v 470 f 12v,15v 220 f 100 f 3) no parallel connection or plug and play trim application & trim resistance derating & efficiency curve application circuit for trim (part in broken line is the interior of models) 0v r 2 r 1 r 3 v ref r t trim +vo 0v r 2 r 1 r 3 v ref r t trim +vo trim up trim down formula for resistance of trim up: a= vref vo -vref r 1 r= t ar 2 r-a 2 -r 3 down: a= vref vo -vref r 2 r= t ar 1 r-a 1 -r 3 note: value for r1, r2, r3, and vref refer to the following table. r t : resistance of trim a: user-defined parameter, no actual meanings. vo : the trim up/down voltage vo resistance 3.3(vdc) 5(vdc) 12(vdc) 15(vdc) r1(k ) 4.80 2.88 10.97 14.50 r2(k ) 2.86 2.86 2.86 2.86 r3(k ) 15 10 17.8 17.8 vref(v) 1.24 2.5 2.5 2.5 1) temperature derating curve (output voltage 5v) operating temp( ) c o u t p u t p o w e r ( % ) (output voltage > 5v) operating temp( ) c o u t p u t p o w e r ( % ) 2) efficiency vs nput voltage (rated load) URB2405LD-15W efficiency vs input voltage 70 72 74 76 78 80 82 84 86 88 90 9 12 15 18 21 24 27 30 33 36 input voltage (v) % 3) efficiency vs output load (nominal input) URB2405LD-15W efficiency vs output load 0 10 20 30 40 50 60 70 80 90 10 20 30 40 50 60 70 80 90 100 output load %io %
the copyright and authority for the interpretation of the products are reserved by mornsun specifications subject to change without notice. urb_ld-15w 2013.05.31-a/4 page 3 of 3 outline dimensions & footprint details heatsink assembly& package diagram(with heatsink) note 1. input voltage can t exceed this value, or will cause the permanent damage. 2. minimum operating current is 10% of rated current, if less than 10% rated current, output ripple may increase rapidly, the amplitude 1v. 3. capacitor max load tested at nominal input voltage, full load and constant resistive load. 4. the ctrl control pin voltage is referenced to gnd. 5. only typical model listed. non-standard models will be different from the above, please contact us for more details. 6. all specifications are measured at ta=25 c, humidity<75%, nominal input voltage and rated output load unless otherwise specified. 7. in this datasheet, all the test methods of indications are based on corporate standards.
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