features output regulation <1.5% controllable output 1kvdc isolation single isolated output sip & dip package styles efficiency to 62% power density 0.85w/cm 3 5v, 12v, 24v & 48v input 5v, 9v, 12v, 12.75v & 15v output footprint from 1.17cm 2 ul 94v-0 package material no heatsink required smd construction toroidal magnetics fully encapsulated no external components mttf up to 2.4 million hours pcb mounting custom solutions available description the nmf series of dc-dc converters is used where a tightly regulated supply is required. they are ideal for situations where the input voltage is not tightly controlled. the output control pin makes the device par - ticularly suitable for flash prom applications where an on/off controlled voltage source is required. nmf series isolated 1w regulated single output 14 pin dip (top view) v in 0v ctrl +v reg 14 11 10 9 1 gnd 1 2 4 5 6 v in gnd 0v ctrl +v reg 7 pin sip pin connections 2 - n m f s e r i e s dc-dc converters 2-59
absolute maximum ratings over operating free air* temperature range input voltage v in nmf05 types . . . . . . . . . . . . . . . . . . . . . . . . . . . 7v input voltage v in nmf12 types . . . . . . . . . . . . . . . . . . . . . . . . . . 15v input voltage v in nmf24 types . . . . . . . . . . . . . . . . . . . . . . . . . . 28v input voltage v in nmf48 types . . . . . . . . . . . . . . . . . . . . . . . . . . 54v output power total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1w short-circuit duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s maximum output voltage rise time after control pin high . . . . . . . . . . . . . . 35 s isolation voltage (flash tested for 1 second) . . . . . . . . . . . . . . . . . 1000vdc operating free air temperature range . . . . . . . . . . . . . . . . . . . 0c to 70c 1 storage temperature range . . . . . . . . . . . . . . . . . . . . . . -- 55c to 150c lead temperature 1.5mm from case for 10 seconds . . . . . . . . . . . . . . . 300c electrical specifications (measured at t a =25c, at nominal input voltage) input voltage range nmf05 types . . . . . . . . . . . . . . . . . . . . . . . . 5v 5% input voltage range nmf12 types . . . . . . . . . . . . . . . . . . . . . . . 12v 5% input voltage range nmf24 types . . . . . . . . . . . . . . . . . . . . . . . 24v 5% input voltage range nmf48 types . . . . . . . . . . . . . . . . . . . . . . . 48v 5% load voltage regulation (10% to 100% full load) . . . . . . . . 0.9% typical 1.5% max. line voltage regulation (10% to 100% full load) . . . . . . . . . . . . . 0.25%/1% v in output voltage accuracy (control pin open circuit) . . . . . . . . . . . . . . . . . 5% input reflected ripple (20mhz band limited) . . . . . . . . . . . . . . . 40mv p-p max. output ripple (20mhz band limited) . . . . . . . . . . . . . . . . . . 60mv p-p max. insulation resistance at 500vdc . . . . . . . . . . . . . . . . . . . . . 100m min. efficiency at full load, 5v output type . . . . . . . . . . . . . . . 50% typical 45% min. efficiency at full load, 9v, 12v & 15v output types . . . . . . . . . 62% typical 55% min. temperature drift (v out ) . . . . . . . . . . . . . . . . . . . . . . 0.03% per c max. temperature rise above ambient at full load . . . . . . . . . . . . . . . . . . . . 8c weight nmf05/12/24 dip and sip types (typical) . . . . . . . . . . . . . . 2.3 grams weight nmf48 dip and sip types (typical) . . . . . . . . . . . . . . . . . . 2.9 grams switching frequency at full load (typical) . . . . . . . . . . . . . . . . . . . . . 80khz no load power consumption (typical) . . . . . . . . . . . . . . . . . . . . . 100mw * free air -- requires a minimum of 10mm air space around the component. 1 see derating curve. nmf series isolated 1w regulated single output 2-60
selection guide 5v and 12v input types part number output voltage (v) output current (ma) power out (mw) package style nmfxx05d 5 100 500 1 nmfxx09d 9 100 900 nmfxx12d 12 83 1000 nmfxx15d 15 67 1000 nmfxx05s 5 100 500 3 nmfxx09s 9 100 900 nmfxx12s 12 83 1000 nmfxx15s 15 67 1000 flash prom types part number output voltage (v) output current (ma) power out (mw) package style nmf0512d 12 83 1000 1 nmf0512s 12 83 1000 3 NMF0513D 12.75 78 1000 1 nmf0513s 12.75 78 1000 3 nmf series isolated 1w regulated single output 2 - n m f s e r i e s dc-dc converters 2-61
selection guide 24v and 48v input types part number output voltage (v) output current (ma) power out (mw) package style nmfxx05d 5 100 500 2 nmfxx09d 9 100 900 nmfxx12d 12 83 1000 nmfxx15d 15 67 1000 nmfxx05s 5 100 500 4 nmfxx09s 9 100 900 nmfxx12s 12 83 1000 nmfxx15s 15 67 1000 typical isolation capacitance (pf) part number output voltage (v) 05 09 12 13 15 nmf05xxx 28 32 33 31 39 nmf12xxx 48 63 68 - 69 nmf24xxx 84 106 132 - 152 nmf48xxx 54 75 92 - 109 nmf series isolated 1w regulated single output 2-62
typical characteristics note : all data taken at t a =25c. nmf series isolated 1w regulated single output
typical applications nmf series isolated 1w regulated single output 6 ctrl 4 5 1 2 vout nc 0v vcc gnd nmf0512s normal isolated regulated output 6 ctrl 4 5 1k ttl input 2n2219, bc107, ztx451 or similar transistor capable of sinking 50ma continuous current 1 2 vout = 12v, ttl=0 vout = 1.2v, ttl=1 0v 0v vcc gnd nmf0512s flash prom programming voltage control 2-64
mean time to failure (mttf) in thousands of hours part number -- 25c 25c 70c nmf0505 2406 1307 144 nmf0509 1243 825 134 nmf0512/13 691 512 121 nmf0515 399 316 103 nmf1205 604 456 117 nmf1209 489 379 110 nmf1212 372 290 101 nmf1215 267 218 89 nmf2405 1281 843 135 nmf2409 856 613 126 nmf2412 552 422 114 nmf2415 348 279 98 nmf4805 244 200 85 nmf4809 223 283 82 nmf4812 195 162 76 nmf4815 165 135 69 note : mttf figures derived from hybrid model of mil-hdbk-217f. nmf series isolated 1w regulated single output 2 - n m f s e r i e s dc-dc converters 2-65
outline dimensions 14 pin dip package styles recommended footprint details all pins on a 2.54mm pitch. all dimensions in mm xx.x 0.50, xx.xx 0.25 nmf series isolated 1w regulated single output 2 1
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