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bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs ? isolated ? output over voltage shutdown ? high efficiency ? ocp/scp ? high power density ? over temperature protection ? low cost ? remote on/off ? input under voltage lockout ? output voltage trim ? fixed frequency (330 khz) ? active low/high (option) ? ul60950 recognized (ul/cul) ? positive/negative remote sense ? input over voltage lockout ? basic isolation description the 0rqb-c5t series are isolated dc/dc converters that operate from a nominal 48 vdc source. these units will provide up to 150 w of output power from a nominal 48 vdc input. these units are designed to be highly efficient and low cost. typical efficiency of 12 vdc output at 48 vdc input at full load is 93%. features include remote on/off, over current protection and under-voltage lockout. these converters are provided in an industry standard quarter brick package. part selection output voltage input voltage max. output current max. output power typical efficiency model number active high model number active low 12 v 36 v - 75 v 12 a 144 w 93.0% 0rqb-c5t120 0rqb-c5t12l 5.0 v 36 v - 75 v 30 a 150 w 92.5% 0rqb-c5t050 0rqb-c5t05l 3.3 v 36 v - 75 v 46 a 152 w 91.0% 0rqb-c5t033 0rqb-c5t03l 2.5 v 36 v - 75 v 50 a 125 w 90.5% 0rqb-c5t025 0rqb-c5t02l 1.8 v 36 v - 75 v 50 a 90 w 88.0% 0RQB-C5TV80 0rqb-c5tv8l 1.5 v 36 v - 75 v 50 a 75 w 85.0% 0rqb-c5tv50 0rqb-c5tv5l 1.2 v 36 v - 75 v 50 a 60 w 83.0% 0rqb-c5tv20 0rqb-c5tv2l notes: 1. add ?g? suffix at the end of the model number to indicate 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 - 80 v remote on/off -0.3 v - 18 v i/o isolation voltage - - 2000 v ambient temperature -40 c - 85 c storage temperature -55 c - 125 c note: all specifications are typical at nominal input, full load at 25 c unless noted. 0rqb-c5t series 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 isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs input specifications parameter min typ max notes input voltage 36 v 48 v 75 v input current (full load) v o =12 v v o =5.0 v v o =3.3 v v o =2.5 v v o =1.8 v v o =1.5 v v o =1.2 v - - - - - - - - - - - - - - 4.5 a 4.9 a 4.9 a 4.1 a 3.0 a 2.6 a 2.1 a input current (no load) - 120 ma 180 ma remote off input current 10 ma 15 ma input reflected ripple current (pk-pk) - 10 ma 15 ma input reflected ripple current (rms) - 1.5 ma 3 ma tested with simulated source impedance of 10 uh, 5 hz to 20 mhz; use a 100 uf /100 v electrolytic capacitor with esr = 1 ohm max. at 200 khz at 25 c. i 2 t inrush current transient - 0.05 a 2 s0.1 a 2 s turn-on voltage threshold 32 v 34 v 35 v turn-off voltage threshold 30 v 32 v 34 v input over voltage lockout 76 v 78 v 80 v note: all specifications are typical at nominal input, full load at 25 c unless noted. output specifications parameter min typ max notes output voltage set point v o =12 v v o =5.0 v v o =3.3 v v o =2.5 v v o =1.8 v v o =1.5 v v o =1.2 v 11.790 v 4.925 v 3.260 v 2.450 v 1.770 v 1.477 v 1.176 v 12.030 v 5.004 v 3.308 v 2.503 v 1.808 v 1.500 v 1.200 v 12.270 v 5.075 v 3.360 v 2.550 v 1.844 v 1.523 v 1.224 v vin=48 v, io=50% full load line regulation v o =12 v v o =5.0 v v o =1.2 v-3.3 v - - - 8 mv 5 mv 3 mv 15 mv 15 mv 6 mv load regulation v o =5.0 v-12 v v o =2.5 v-3.3 v v o =1.2 v-1.8 v - - - 10 mv 5 mv 2 mv 20 mv 10 mv 5 mv regulation over temperature (-40 c to +85 c) v o =12 v v o =5.0 v v o =3.3 v v o =2.5 v v o =1.8 v-1.2 v - - - - - 60 mv 40 mv 30 mv 20 mv 15 mv 100 mv 65 mv 50 mv 40 mv 30 mv output current vo=12 v vo=5.0 v vo=3.3 v vo=1.2 v-2.5 v 0 a 0 a 0 a 0 a - - - - 12 a 30 a 46 a 50 a
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs output specifications (continued) parameter min typ max notes current limit threshold v o =12 v v o =5.0 v v o =3.3 v v o =1.2 v-2.5 v 14 a 35 a 50 a 55 a 15.5 a 40 a 60 a 60 a 18 a 45 a 65 a 65 a short circuit surge transient - 3 a 2 s 5 a 2 s ripple and noise (rms) v o =12 v v o =5.0 v v o =3.3 v v o =1.2 v-2.5 v - - - - 25 mv 20 mv 20 mv 15 mv 30 mv 25 mv 20 mv 20 mv ripple and noise (pk-pk) v o =12 v v o =5.0 v v o =3.3 v v o =1.8 v vo=2.5 v v o =1.5 v v o =1.2 v - - - - - - 70 mv 60 mv 50 mv 45 mv 40 mv 55 mv 40 mv 90 mv 80 mv 70 mv 60 mv 60 mv 70 mv 60 mv test conditions: 0-20 mhz bw, with a 1 uf ceramic capacitor and a 10 uf tantalum capacitor at the output. turn on time 10 ms - 100 ms overshoot at turn on - 0% 5% output capacitance v o =12.0 v v o =5.0 v v o =1.2 v-3.3 v 0 uf 0 uf 0 uf - - - 2200 uf 10000 uf 20000 uf transient response overshoot - 600 mv 800 mv 50% ~ 75% max load settling time - 200 us 300 us overshoot - 600 mv 800 mv 75% ~ 50% max load settling time v o =12.0 v - 200 us 300 us overshoot - 250 mv 375 mv 50% ~ 75% max load settling time - 100 us 200 us overshoot - 250 mv 375 mv 75% ~ 50% max load settling time v o =5.0 v - 100 us 200 us overshoot - 100 mv 200 mv 50% ~ 75% max load settling time - 200 us 300 us overshoot - 100 mv 200 mv 75% ~ 50% max load settling time v o =3.3 v - 200 us 300 us overshoot - 100 mv 200 mv 50% ~ 75% max load settling time - 300 us 400 us overshoot - 100 mv 200 mv 75% ~ 50% max load settling time v o =2.5 v - 300 us 400 us overshoot - 100 mv 140 mv 50% ~ 75% max load settling time - 200 us 300 us overshoot - 100 mv 140 mv 75% ~ 50% max load settling time vo=1.8 v v o =1.5 v - 200 us 300 us overshoot - 100 mv 120 mv 50% ~ 75% max load settling time - 200 us 300 us overshoot - 100 mv 120 mv 75% ~ 50% max load settling time v o =1.2 v - 200 us 300 us test conditions: di/dt = 0.1 a/us, vin=48 v, with a 1 uf ceramic capacitor and a 10 uf tantalum capacitor at the output. note: all specifications are typical at nominal input, full load at 25 c unless noted.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs general specifications parameter min typ max notes efficiency v o =12 v v o =5.0 v v o =3.3 v v o =2.5 v v o =1.8 v v o =1.5 v v o =1.2 v 90% 89% 88% 87% 85% 82% 80% 93% 92.5% 91% 90.5% 88% 85% 83% - - - - - - - vin=48 v, full load , ta=25 c switching frequency 280 khz 330 khz 380 khz isolation capacitance - 1500 pf - input to output isolation voltage - - 2000 v remote sense compesation - - 10% vo output voltage trim range 80% vo - 110% vo the total voltage increased by trim and remote sense should not exceed 10%vo. over temperature protection - 125 c - over voltage protection - 130% vo - vin=48v, full load, hiccup mode mtbf 1,109,917 hours calculated per bell core sr-332 (i o =80% load, vin=48 v, vo=3.3 v; t a = 25 c) dimensions inches millimeters 2.30 x 1.45 x 0.395 58.42 x 36.83 x 10.03 weight - 41 g - note: all specifications are typical at nominal input, full load at 25 c unless noted. control specifications parameter min typ max notes remote on/off signal low (unit on) -0.3 v - 0.8 v signal high (unit off) active low 2.4 v - 18 v 0rqb-c5txxl. the remote on/off pin open, unit off. signal low (unit off) -0.3 v - 0.8 v signal high (unit on) active high 2.4 v - 18 v 0rqb-c5txx0. the remote on/off pin open, unit on. current sink 0 ma - 0.75 ma
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs output trim equations equations for calculating the trim resistor are shown below (unit: k ? ). the trim down resistor should be connected between the trim pin and ground pin. the trim up resistor should be connected between the trim pin and the vout. only one of the resistors should be used for any given application. 1) for vo=1.5 v ? 12 v: note : vo_req=desired (trimmed) output voltage [v]; vo=output voltage vo=12.004 v for 12 v output; vo=5 v for 5.004 v output; vo=3.308 v for 3.3 v output; vo=2.503 v for 2.5 v output; vo=1.808 v for 1.8 v output; vo=1.503 v for 1.5 v output 2) for vo=1.2 v: note : vo_req=desired (trimmed) output voltage [v]; vo=output voltage vo=1.202 v for 1.2 v output 22 . 10 225 . 1 626 11 . 5 ) 100 ( ? ? ? ? ? + = delta vo delta rtrimup 22 . 10 511 ? = delta rtrimdown () [] % 100 _ ? = vo vo req vo delta module vout trim gnd rtrimdow n module vout trim gnd rtrimup 22 . 10 6125 . 0 313 11 . 5 ) 100 ( ? ? ? ? ? + = delta vo delta rtrimup 22 . 10 511 ? = delta rtrimdown () [] % 100 _ ? = vo vo req vo delta
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs efficiency data 50.0% 55.0% 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 5.00 12.50 25.00 37.50 50.00 output current(a) efficiency 36 v 48 v 75 v 50.0% 55.0% 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 5.00 12.50 25.00 37.50 50.00 output current(a) efficiency 36 v 48 v 75 v 0rqb-c5tv2x 0rqb-c5tv5x 70% 75% 80% 85% 90% 95% 5 13253850 output current (a) efficiency 36 v 48 v 75 v 70% 75% 80% 85% 90% 95% 5 13253850 output current (a) efficiency 36 v 48 v 75 v 0rqb-c5tv8x 0rqb-c5t02x 70% 75% 80% 85% 90% 95% 5 11233446 output current (a) efficiency 36 v 48 v 75 v 70% 75% 80% 85% 90% 95% 3 8 15 23 30 output current (a) efficiency 36 v 48 v 75 v 0rqb-c5t03x 0rqb-c5t05x
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs efficiency data (continued) 70% 75% 80% 85% 90% 95% 136912 output current (a) efficiency 36 v 48 v 75 v 0rqb-c5t12x thermal derating curves vin=48v, with maximum junction temperature of semiconductors derated to 120 degree c. 0rqb-c5txxx 0rqb-c5t12x 0rqb-c5t05x 0rqb-c5t03x
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs thermal derating curves ( continued ) 0rqb-c5t02x 0rqb-c5tv8x 0rqb-c5tv5x 0rqb-c5tv2x thermal reference note: t h1 , t h2 , t h3 and t h4 are hot spots which should not exceed 115 degree c.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs ripple and noise waveforms ripple and noise at full load, 1.2 v/50 a output ripple and noise at full load, 1.5 v/50 a output ripple and noise at full load, 1.8 v/50 a output ripple and noise at full load, 2.5 v/45 a output ripple and noise at full load, 3.3 v/46 a output ripple and noise at full load, 5.0 v/30 a output ripple and noise at full load, 12 v/12 a output note: ripple and noise is tested with a 1 uf ceramic cap and a 10 uf tantalum capat output, ta=25 deg c.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs transient response waveforms vout= 1.2 v 50%-75% load transients vout= 1.2 v 75%-50% load transients vout= 1.5 v 50%-75% load transients vout= 1.5 v 75%-50% load transients vout= 1.8 v 50%-75% load transients vout= 1.8 v 75%-50% load transients vout= 2.5 v 50%-75% load transients vout= 2.5 v 75%-50% load transients
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a outputs transient response waveforms (continued) vout= 3.3 v 50%-75% load transients vout= 3.3 v 75%-50% load transients vout= 5.0 v 50%-75% load transients vout= 5.0 v 75%-50% load transients vout= 12 v 50%-75% load transients vout= 12 v 75%-50% load transients note: transient response at vin=48 v, di/dt = 0.1 a/us, with a 1 uf ceramic capacitor and a 10 uf tantalum capacitor at the output, ta=25 deg c.
? 2007 bel fuse inc. specifications subject to change without notice. 030307 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 isolated dc/dc converters 48 vdc input 12 vdc/12 a, 3.3 vdc/46 a, 5 vdc/30 a, 1.2-2.5 vdc/50 a utputs mechanical outline rohs compliance complies with the european directive 2002/95/ec , calling for the elimin ation of lead and other hazardous substances from electronic products. pin connections pin function pin size 1 vin (+) 0.04" 2 remote on/off 0.04" 3 vin (-) 0.04" 4 vout (-) 0.062" 5 remote sense (-) 0.04" 6 trim 0.04" 7 remote sense (+) 0.04" 8 vout (+) 0.062"

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