bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 9.0 vdc - 18 vdc input 15 vdc/0.8 a output ? non-isolated ? low profile package ? high efficiency ? fixed frequency (500 khz) ? remote on/off ? active low description the bel xrah-01kx50 is part of the low cost non-isolated dc/dc converter series. the modules use a smd or sip package for ease of layout and space savings. the output is closely regulated and the efficiency of 15 vdc output module is typically 87% at full load. part selection output voltage input voltage max. output current max. output power typical efficiency part number surface mount part number vertical mount 15 v 9 v - 18 v 0.8 a 12 w 87% srah-01kx50 VRAH-01KX50 notes: 1. add ?0? suffix at the end of the model number to indicate ?tube packaging?, and ?r? for ?reel packaging?, and ?g? for ?tray packaging?. 2. all part numbers above indicate rohs 6. change the second letter "r" to "7" for rohs 5 part numbers. absolute maximum ratings parameter min typ max notes input voltage (continuous) -0.3 v - 20 v remote on/off (active low) -0.3 v - 20 v ambient temperature -40 c - 85 c storage temperature -40 c - 125 c input specifications parameter min typ max notes input voltage 9 v 12 v 18 v input current (no load) - 30 ma 45 ma input current (full load) - - 2.6 a remoted off input current 18 ma 25 ma input reflected ripple current (pk-pk) - 75 ma 110 ma input reflected ripple current (rms) - 20 ma 30 ma with simulated source impedance of 500 nh, 5 hz to 20 mhz; use one 100 uf/20 v tantalum capacitor at the input. i 2 t inrush current transient - 0.003 a 2 s 0.01 a 2 s turn-on voltage threshold 8.0 v 8.5 v 8.8 v turn-off voltage threshold 7.2 v 7.6 v 8.2 v note: all specifications are typical at 25 c unless otherwise stated. xrah-01kx50 rohs com p liant rev.a
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 9.0 vdc - 18 vdc input 15 vdc/0.8 a output output specifications parameter min typ max notes output voltage set point 14.7 v 15.0 v 15.3 v vin=12 v, lout=full load line regulation - 50 mv 75 mv load regulation - 20 mv 30 mv regulation over temperature (-40 c to +85 c) - 50 mv 80 mv output current 0.03 a - 0.8 a output dc current limit 1 a - 1.5 a ripple and noise (rms) - 35 mv 50 mv ripple and noise (pk-pk) - 100 mv 150 mv bw = 0-20 mhz; with two 10 uf ceramic capacitors at the output turn on time - 20 ms 40 ms overshoot at turn on - 0% 5% output capacitance 0 uf - 100 uf transient response overshoot - 300 mv 400 mv 50% ~ 75% max load settling time - 150 ms 200 ms overshoot - 300 mv 400 mv 75% ~ 50% max load settling time - 150 ms 200 ms di/dt = 0.5 a/ us; vin = 12 v; and with two 10 uf ceramic capacitors at the output note: all specifications are typical at nominal input, full load at 25 c unless otherwise stated. general specifications parameter min typ max notes efficiency 85% 87% - measured at vin=12 v, full load switching frequency 450 khz 500 khz 550 khz mtbf tbd calculated per bell core sr-332 (i o = nominal; t a = 25 c) dimensions (surface mount) inches (l w h) millimeters (l w h) 0.78 x 0.7 x 0.32 19.81 x 17.78 x 8.13 dimensions (vertical) inches (l w h) millimeters (l w h) 0.7 x 0.308 x 0.65 17.78 x 7.82 x 16.51 weight - 5 g - note: all specifications are typical at 25 c unless otherwise stated. control specifications parameter min typ max notes remote on/off signal low (unit on) -0.3 v - 0.4 v signal high (unit off) 2.8 v - vin xrah-01kx50 remote on/off pin open, unit on. note : all specifications are typical at 25 c unless otherwise stated.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 9.0 vdc - 18 vdc input 15 vdc/0.8 a output efficiency data 0.0% 20.0% 40.0% 60.0% 80.0% 100.0% 0.080 0.200 0.400 0.600 0.800 output current (a) efficienc y 9v 12v 18v thermal derating curve
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com non-isolated dc/dc converters 9.0 vdc - 18 vdc input 15 vdc/0.8 a output ripple and noise waveforms ripple and noise at no load ripple and noise at full load note: ripple and noise at 12 vdc input, 15 vdc output, with two 10 uf ceramic capacitors at the output, ta=25 deg c. transient response waveforms 50% to 75% load at 15 vdc output 75% to 50% load 15 vdc output note: transient response at 12 v input, di/dt=0.5 a/us, with two 10 uf ceramic capacitors at the output, and ta=25 deg c.
? 2007 bel fuse inc. specifications subject to change without notice. 011007 corporate far east europe bel fuse inc. bel fuse ltd. bel fuse europe ltd. 206 van vorst street 8f/ 8 luk hop street preston technology management centre jersey city, nj 07302 san po kong marsh lane, suite g7, preston tel 201-432-0463 kowloon, hong kong lancashire, pr1 8ud, u.k. fax 201-432-9542 tel 852-2328-5515 tel 44-1772-556601 www.belfuse.com fax 852-2352-3706 fax 44-1772-888366 www.belfuse.com www.belfuse.com non-isolated dc/dc converters 9.0 vdc - 18 vdc input 15 vdc/0.8 a output mechanical outline srah-01kx50 VRAH-01KX50 rohs compliance complies with the european dire ctive 2002/95/ec, calling for th e elimination of lead and other hazardous substances from electronic products. these parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240 oc. pin connections pin function 1 remote on/off 2 vin 3 ground 4 vout 5 n/a 6 n/a 7 n/a pin connections pin function 1 remote on/off 2 vin 3 ground 4 vout 5 n/a bel bel bel
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