features industry standard pinout pin compatible with nmxso 1kvdc isolation single or dual output low profile package efficiency to 85% power density 0.85w/cm 3 5v & 12v input 5v, 12v and 15v output footprint 5.88 cm 2 ul 94v-0 package material no heatsink required internal smd construction toroidal magnetics fully encapsulated no external components required mttf up to 900 thousand hours pcb mounting custom solutions available description t he nmxu ultra-miniature 5w dc-dc converters offer an extremely small package whilst maintaining an industry-standard footprint. the four-fold increase in power density over 2 ?? square devices releases over 19cm 2 of board area when upgrading. the devices are particularly suited for use in distributed power systems where there is low variation in the bus voltage levels. nmxu series isolated 5w single and dual output dual output type (top view) single output type (top view) -- v 0v +v 5 4 3 1 2 gnd v in 0v +v 5 3 1 2 gnd v in pin connections 2 - n m x u s e r i e s dc-dc converters 2-113
absolute maximum ratings over operating free air* temperature range input voltage v in nmx05 types . . . . . . . . . . . . . . . . . . . . . . . . . . . 7v input voltage v in nmx12 types . . . . . . . . . . . . . . . . . . . . . . . . . . 15v output power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5w isolation voltage (flash tested for 1 second) . . . . . . . . . . . . . . . . . 1000vdc operating free air temperature range . . . . . . . . . . . . . . . . . . . 0c to 70c storage temperature range . . . . . . . . . . . . . . . . . . . . . . -- 55c to 100c lead temperature 1.5mm from case for 10 seconds . . . . . . . . . . . . . . . 300c short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . 1 second max. electrical specifications (measured at t a =25c, at nominal input voltage) input voltage range nmx05 types . . . . . . . . . . . . . . . . . . . . . . 5v 10% input voltage range nmx12 types . . . . . . . . . . . . . . . . . . . . . 12v 10% load voltage regulation (10% to 100% full load) 5v output types . . . . . . . . . . . . . . . . . . . . . . . . . . 7% typ. 12% max. 12v and 15v output types . . . . . . . . . . . . . . . . . . . . . 5% typ. 7.5% max. line voltage regulation (10% to 100% full load) . . . . . . . . . . . . . . . . . . 1.1% output voltage accuracy . . . . . . . . . . . . . . . . . see tolerance envelope graph input reflected ripple (20mhz band limited) . . . . . . . . . . . . . . 200mv p-p max. output ripple (20 mhz band limited) . . . . . . . . . . . . . . . . . 125mv p-p max. insulation resistance at 1000vdc . . . . . . . . . . . . . . . . . . . . 1000m min. efficiency at full load . . . . . . . . . . . . . . . . . . . . . . . . 85% typ. 75% min. temperature rise above ambient at full load 5v output types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30c typ. 12v and 15v output types . . . . . . . . . . . . . . . . . . . . . . . . . . 20c typ. weight (typical) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 grams switching frequency at full load (typical) . . . . . . . . . . . . . . . . . . . . . 70khz no load power consumption (typical) . . . . . . . . . . . . . . . . . . . . . 500mw * free air -- requires a minimum of 10mm air space around the component. nmxu series isolated 5w single and dual output 2-114
selection guide single output types - 5v and 12v input types part number output voltage (v) output current each output (ma) package style nmxsxx05u 5 1000 1 nmxsxx12u 12 417 nmxsxx15u 15 333 dual output types - 5v and 12v input types part number output voltage (v) output current each output (ma) package style nmxdxx05u 5 500 2 nmxdxx12u 12 208 nmxdxx15u 15 167 typical isolation capacitance (pf) part number output voltage (v) 05 12 15 nmxs05xxu 30.6 31.2 32.6 nmxd05xxu 31.5 33.0 34.2 nmxs12xxu 32.5 51.9 54.1 nmxd12xxu 34.7 52.9 59.9 note : all data taken at t a =25c. nmxu series isolated 5w single and dual output 2 - n m x u s e r i e s dc-dc converters 2-115
typical characteristics note : all data taken at t a =25c. mean time to failure (mttf) in thousands of hours part number -- 25c 25c 70c nmxs0505u 913 792 694 nmxd0505u 907 779 673 nmxs0512u 179 158 140 nmxd0512u 179 158 140 nmxs0515u 98 86 77 NMXD0515U 98 86 77 nmxs1205u 269 233 205 nmxd1205u 269 233 205 nmxs1212u 122 107 94 nmxd1212u 122 107 94 nmxs1215u 78 68 61 nmxd1215u 78 68 61 note : mttf figures derived from hybrid model of mil-hdbk-217f. nmxu series isolated 5w single and dual output
outline dimensions single output types dual output types recommended footprint details all pins on a 2.54mm pitch. all dimensions in mm xx.x 0.50, xx.xx 0.25 nmxu series isolated 5w single and dual output 1 2
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