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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 1 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. features ? isolated ? output over-voltage shutdown ? high efficiency ? over temperature protection ? high power density ? ocp/scp ? fixed frequency (300 khz) ? remote on/off ? low cost ? basic insulation ? input under-voltage lockout ? input over-voltage lockout ? class 1, category 2, isolated dc/dc converter (refer to ipc-9592) ? ul60950-1 recognized (ul/cul) (pending) applications ? networking ? computers and peripherals ? telecommunications description the 0rqb-q2t06x is an isolated dc/dc converter that operates from a nominal 48 vdc source. this unit will provide up to 390 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 under voltage lockout. the converter is 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 6.5 vdc 36 vdc - 75 vdc 60 a 390 w 93.5% 0rqb-q2t065 0RQB-Q2T06L notes: add ?g? suffix at the end of the model number to indicate tray packaging. part number explanation 0 r qb ? q2 t 06 5 1 2 3 4 5 6 7 1---through hole 2---rohs 6, change ?r? to ?7? means rohs 5 3---series name, 1/4 brick 4---series code 5---input range 48v wide (36-75v) 6---output voltage (6.5v) 7---enable, ?5? means active high, and ?l? means active low 0rqb-q2t06x rohs com p liant rev.g
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 2 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. absolute maximum ratings parameter min typ max unit notes continuous input voltage -0.3 - 80 v input transient voltage - - 100 v 100 ms maximum remote on/off -0.3 - 18 v i/o isolation voltage - - 1500 v ambient temperature -40 - 85 c storage temperature -55 - 125 c note: ratings used beyond the maximum ratings may caus e a reliability degradation of the converter or may permanently damage the device. input specifications parameter min typ max unit notes operating input voltage 36 48 75 v input current (full load) - - 15.3 a input current (no load) - 140 180 ma remote off input current - 15 20 ma input reflected ripple current (rms) - 15 25 ma input reflected ripple current (pk-pk) - 50 80 ma tested with simulated source impedance of 10 uh, 5 hz to 20 mhz; use a 220 uf/100 v electrolytic capacitor with esr = 1 ohm max. at 200 khz at 25 c. i 2 t inrush current transient - - 1 a 2 s turn-on voltage threshold - 34.5 35.8 v turn-off voltage threshold 32 33.5 - v caution: this converter is not internally fused. an input line fuse must be used in application. recommend a fast-acting fuse with maximum rating of 20a on system board. refer to the fuse manufacture?s datasheet for further information. notes: 1. this converter has internal c-l-c (1uf-0.72uh-10.8uf) filter. 2. all specifications are typical at 25 c unless otherwise stated. output specifications parameter min typ max unit notes output voltage set point 6.37 6.50 6.63 v vin=48v, io=50% load load regulation - 15 40 mv line regulation - 15 32 mv regulation over temperature (-40deg.c-85deg.c) - 30 65 mv ripple and noise (pk-pk) - 120 200 mv ripple and noise (rms) - 30 50 mv 0-20 mhz bw, with a 1f ceramic capacitor and a 10uf tantalum cap at output. ripple and noise (pk-pk) under worst case - - 300 mv over all operating input voltage, load and temperature conditions.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 3 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. output specifications (continued) parameter min typ max unit notes output current range 0 - 60 a output dc current limit 64 72 81 a short circuit surge transient - - 6 a 2 s rise time - 20 - ms 60 90 ms enable form vin turn on time - 40 70 ms enable form on/off overshoot at turn on - 0 3 % output capacitance 0 - 10000 uf transient response overshoot - - 400 mv v50%~75% of max load settling time - - 300 us overshoot - - 400 mv v75%~50% of max load settling time - - 300 us di/dt=0.1a/us, vin=48vdc, ta=25c, with a 1f ceramic capacitor and a 10uf tantalum cap at the output. overshoot - - 500 mv v50%~75% of max load settling time - - 300 us overshoot - - 500 mv v75%~50% of max load settling time - - 300 us di/dt=1a/us, vin=48vdc, ta=25c, with a 1f ceramic capacitor and a 470uf tantalum cap at the output. note: all specifications are typical at nominal inpu t, full load at 25c unless otherwise stated. general specifications parameter min typ max unit notes efficiency - 93.5 - % vin=48v, full load switching frequency - 300 - khz over temperature protection - 125 - c over voltage protection(static) - 8 - v this voltage is achieved by trimming up output slowly weight - 71 - g fit 478 - calculated per bell core sr-332 (vin=48v, vo=6.5v, io=30a, 500lfm, t a = 25 c, fit=10 9 /mtbf) dimensions inches (l w h) millimeters (l w h) 2.30 x 1.45 x 0.50 58.42 x 36.83 x 12.70 - isolation characteristics input to output - - 1500 v input to case - - 1500 v output to case - - 500 v isolation resistance 10m - ohm isolation capacitance - 2200 - pf 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 4 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. efficiency data 80.00% 82.00% 84.00% 86.00% 88.00% 90.00% 92.00% 94.00% 96.00% 6a 15a 30a 45a 60a output current(a) efficienc y 36 v 48 v 75 v thermal derating curve derating curve under normal input
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 5 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. ripple and noise waveform 48vdc input, 6.5vdc/60a note: ripple and noise at full load, and with a 1uf ceramic cap and a 10 uf tantalum cap at output. transient response waveforms vout= 6.5v 50%-75% load transients vout= 6.5v 75%-50% load transients note: transient response at di/dt=0.1a/us, with 1uf ceramic cap and 10uf aluminum cap at output.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 6 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. startup & shutdown rise time vout= 6.5v/60a at vin=48v@ta=25 vout= 6.5v/60a at vin=48v@ta=25 cext = 0uf cext = 10000uf startup time startup from vin startup from on/off ch1: vo ch1: vo ch3: vin ch3: on/off vout= 6.5v/60a at vin=48v@ta=25 vout= 6.5v/60a at vin=48v@ta=25 cext = 10000uf cext = 10000uf
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 7 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. startup & shutdown (continued) shutdown vout= 6.5v/60a at vin=48v@ta=25 cext = 10000uf over current protection to provide protection in a fault output overload condition, the module is equipped with internal current-limiting circuitry and can endure current limiti ng for a few mili-seconds. if the over current condition persists beyond a few milliseconds, the module will shut down into hiccup mode and restart once every 400ms. the module operates normally when the output current goes into specified range. the typical average output current is 5a during hiccup. output current waveform expansion of on time portion
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 8 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. over voltage protection the output overvoltage protection consists of circuitry that monitors the voltage on the output terminals. if the voltage on the output terminals exceeds the over voltage protection threshold the module will shutdown into latch off mode. the overvoltage latch can be reset by either cycling the input power or toggling the on/off signal for one second at least. test setup: r is the ohmic value of the resistor used for the overvoltage test ch1: output voltage waveform ch3: output current waveform vo+ vo- trim r k (r=10k)
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 9 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. over temperature protection the otp is achieved by thermistor r60 and the threshold is set at 105c in non-latch mode; the hottest component q2 reaches 120c with 500lfm air flow correspondingly. it will restart automatically when the temperature falls down to 100c. the protecting point will be varied a little under different conditions (air flow, ambient temperature, input voltage, load...). the hottest component on the top side: q2 the thermistor on the bottom side: r60
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 10 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. remote on/off parameter min typ max unit notes signal low (unit on) -0.3 - 0.8 v signal high (unit off) active low 2.4 - 18 v 0RQB-Q2T06L. the remote on/off pin open, unit off. signal low (unit off) -0.3 - 0.8 v signal high (unit on) active high 2.4 - 18 v 0rqb-q2t065. the remote on/off pin open, unit on. current sink 0 - 1 ma recommended remote on/off circuit for active low control with open collector/drain circuit control with photocoupler circuit control with logic circuit permanently on recommended remote on/off circuit for active high control with open collector/drain circuit control with photocoupler circuit control with logic circuit permanently on vin+ vin- on/off vin+ vin- on/off vin+ vin- on/off vcc vin+ vin- on/off vin+ vin- on/off vin+ vin- on/off vin+ vin- on/off vcc vin+ vin- on/off
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 11 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. input under-voltage lockout safety & emc safety 1. material flammability ul94v-0 2. tuv certification en60950-1 3. ul certification ul60950-1 emc 1. surge iec61000-4-5 2. dc-dip iec61000-4-29 3. conductive emi en55022 class a compliance to en55022 class a (both q.peak and average) with the following inductive and capacitive filter item designator parameter 1 c1 c2 c3 c4 c5 100v/1000nf/x7r/1210 2 c6 100v/100nf/10%/x7r/1206 3 c8 c9 c10 c11 0.22u/630v/x7r/2220 4 c7 c12 n/a 5 l1 l2 473uh/25%/14a input voltage (v) i n p u t c u r r e n t voltage falling voltage rising v1 v2 under-voltage lockout v1=32v v2=34v
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 12 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. safety & emc (continued) positive: negative:
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 13 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. layout layout of components on top side layout of components on bottom side
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 14 isolated dc/dc converters 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsidiary of bel fuse inc. mechanical outline note: this module is recommended and compatible with pb-free wave soldering and must be soldered using a peak solder temperature of no more than 26 0 oc for less than 5 seconds. note: 1) all pins: material - copper alloy; finish ? 3 micro inches minimum gold over 50 micro inches minimum nickel plate. 2) undimensioned components are shown for visual reference only. 3) all dimensions in inches (mm); tolerances: x.xx +/-0.0 2 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm). pin connections pin# function pin size 1 vin (+) 0.04" 2 on/off 0.04" 3 vin (-) 0.04" 4 vo (-) 0.06" 5 vo (+) 0.06"
? 2010 bel fuse inc. specifications subject to change without notice. 080910 15 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 36 vdc - 75 vdc input 6.5 vdc /60 a output, 1/4 brick aug. 09, 2010 bel power inc., a subsid iary of bel fuse inc. revision history date revision changes detail approval 2009-06-16 a first release joe wei 2009-06-23 b delete output trim and remote sense function, update mechanical drawing joe wei 2009-06-30 c 1. update input c-l-c filter; 2. change max output cap form 5600uf to 10000uf; 3. add transient response of di/dt=1a/us; 4. change output current from 65a to 60a. joe wei 2009-09-25 d 1.changge switching frequency from 250k to 300k, 2.no load input current. 3.remote off input current. 4.load regulation. 5.line regulation. 6.regulation over temperature. 7.output dc current limit. 8.turn on time. 9.rise time. 10.add efficiency, td,nr,tr yp zhou 2009-10-19 e 1.add i 2 t inrush current transient; 2.add short circuit surge transient; 3.add mtbf data; 4.update derating curve under normal input; 5. add ocp,ovp, otp, safety&emc yp zhou 2009-10-23 f 1. update test condition of mtbf; 2. update waveform for ovp yp zhou 2010-03-02 g update mechanical drawing. jz wang 2010-08-09 h 1. update operating input current, turn on voltage threshold, turn off voltage threshold and input c-l-c filter in input specifications. 2. update load regulation, output dc current limit and turn on time in output specifications. 3. add layout. jz wang 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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