bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com sep. 03, 2010 bel power inc., a subsid iary of bel fuse inc. isolated dc/dc converters 48 vdc input 12 vdc / 33 a output ? basic isolation ? low cost ? fixed frequency (300 khz) ? scp/ocp ? high efficiency ? remote on/off ? high power density ? over temperature protection ? input under voltage lockout ? input over voltage lockout ? output over voltage protection ? baseplate description the 0RQB-Q0T12D is an isolated dc/dc converter that op erates from a nominal 48 vdc source. this unit will provide up to 400 w of output power from a nominal 48 vdc input. this unit is designed to be highly efficient and low cost. features include remote on/off, over current protection and over voltage protection. the converter is provided in an industry stan dard quarter brick package. part selection output voltage input voltage max. output current max. output power typical efficiency model number active low 12 vdc 36 vdc - 75 vdc 33 a 400 w 95% 0RQB-Q0T12D notes : 1. add ?g? suffix at the end of the model number to indicate tray packaging. 2. the part number above indicates 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 - 75 v input voltage transient protection - - 100v operating for 100ms remote on/off -0.3 v - 18 v i/o isolation voltage - - 1500 v ambient temperature -40 c - 85 c storage temperature -55 c - 125 c note : all specifications are typical at 25 c unless otherwise stated. input specifications parameter min typ max notes input voltage 36 v 48 v 75 v input current (full load) - - 13 a input current (no load) - 80 ma 150 ma remote off input current - 10 ma 20 ma input reflected ripple current (pk-pk) - 20 ma 30 ma input reflected ripple current (rms) - 5 ma 10 ma 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. i 2 t inrush current transient - - 1 a 2 s turn-on voltage threshold 33 v 34.5 v 35.5 v turn-off voltage threshold 32.5 v 33.5 v 35 v notes: 1. should place at least 220uf/100v electrolytic capacitor directly adjacent to the input pin of the module. 2. all specifications are typical at nominal input, full load at 25 c unless otherwise stated. 0RQB-Q0T12D rohs com p liant rev. f
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com sep. 03, 2010 bel power inc., a subsid iary of bel fuse inc. isolated dc/dc converters 48 vdc input 12 vdc / 33 a output output specifications parameter min typ max notes output voltage set point 11.5 v 12 v 12.5 v v in =48 v, io=50%load. load regulation - 150mv 300mv line regulation - 80mv 130mv regulation over temperature (-40 c to 85 c) - 150 mv 250 mv ripple and noise (pk-pk) - 85 mv 120 mv ripple and noise (rms) - 25 mv 50 mv 0 - 20 mhz bw, with a 1 uf ceramic capacitor and a 10 uf tantalum capacitor at the output. output current range 0 a - 33 a output dc current limit 34 a 38 a 44 a short circuit surge transient - - 5 a 2 s - 30 ms 60 ms enable form vin turn on time - 10 ms 35 ms enable form on/off overshoot at turn on - 0% 3% output capacitance 0 uf - 10000 uf transient response overshoot - 300 mv 600 mv 50% ~ 75% max load settling time - 300 us 500 us overshoot - 300 mv 600 mv 75% ~ 50% max load settling time v o =12 v - 300 us 500 us di/dt=0.1a/us, vin=48 vdc, ta=25 c, 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 otherwise stated. general specifications parameter min typ max notes efficiency 93% 95% - v in =48 v, full load. switching frequency - 300 khz - isolation characteristics input to output - - 1500 v isolation resistance 10m ohm - - isolation capacitance - 2200 pf - over voltage protection 13 v 15.5 v 17 v over temperature protection - 125 c 130 c mtbf 1,745,053 hours calculated per bell core sr-332 (vin=48 v, vo=12 v, io=80%load, t a = 25 c) dimensions inches (l w h) millimeters (l w h) 2.30 x 1.45 x 0.53 58.42 x 36.83 x 13.46 weight - 70 g - 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 sep. 03, 2010 bel power inc., a subsid iary of bel fuse inc. isolated dc/dc converters 48 vdc input 12 vdc / 33 a output 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 the remote on/off pin is open, unit off. current sink 0 ma - 0.75 ma efficiency data 80.00% 82.00% 84.00% 86.00% 88.00% 90.00% 92.00% 94.00% 96.00% 98.00% 3.30 8.25 16.50 24.75 33.00 output current(a) efficienc y 36 v 48 v 60 v thermal derating curve test @vin=48v,with maximum junction temperature of semiconductors derated to 120
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com sep. 03, 2010 bel power inc., a subsid iary of bel fuse inc. isolated dc/dc converters 48 vdc input 12 vdc / 33 a output ripple and noise waveform 48 vdc input, 12 vdc/33 a output note: ripple and noise at full load, with a 1uf ceramic cap and a 10 uf tantalum cap at output, ta=25 deg c. transient response waveforms vout= 12 v 50%-75% load transients vout= 12 v 75%-50% load transients note : transients at di/dt=0.1 a/us, with a 1 uf ceramic capacitor and a 10 uf tantalum capacitor at the output, ta=25 c
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com sep. 03, 2010 bel power inc., a subsid iary of bel fuse inc. isolated dc/dc converters 48 vdc input 12 vdc / 33 a output mechanical outline pin connections pin# function pin size 1 vin (+) 0.04" 2 on/off 0.04" 3 vin (-) 0.04" 4 vout (-) 0.06" 5 vout (+) 0.06"
? 2010 bel fuse inc. specifications subject to change without notice. 090310 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 / 33 a output sep. 03, 2010 bel power inc., a subsid iary of bel fuse inc. revision history date revision changes detail approval 2010-01-21 b add recommended reflow profile. xf jiang 2010-03-19 c update thermal derating curve. xf jiang 2010-04-21 d 1. update load/line regulation; 2. update mechanical outline(pin header standoff height) xf jiang 2010-04-23 e 1. remove the word ?this product can pass through a paste in hole reflow process? from ?description?. 2. remove the page of reflow profile xf jiang 2010-09-03 f 1. update turn-on/turn-off voltage threshold in input specifications; 2. update ripple and noise (pk-pk) and transient response in output specifications; 3. update over voltage protection and mtbf in general specifications; 4. update td, nr, tr and mechanical outline. xf jiang rohs compliance complies with the european directive 2002/95/ec , calling for the elimin ation of lead and other hazardous substances from electronic products.
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