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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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. features ? isolated ? input under voltage lockout ? high efficiency ? output voltage trim ? excellent thermal performance ? output over-voltage shutdown ? low cost ? ocp/scp ? remote on/off ? basic insulation ? 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 xrlp-10t03x is an isolated dc/dc converter that operates from a nominal 48 vdc source. this unit provides up to 10 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, over voltage shut down, and under voltage lockout. this converter is provided in an industry standard 1x1 package. part selection output voltage input voltage max. output current max. output power typical efficiency model number active low model number active high 3.3 vdc 36 vdc - 80 vdc 3 a 10 w 82% xrlp-10t03l xrlp-10t033 notes: add ?g? suffix at the end of the model number to indicate tray packaging. part number explanation x r lp ? 10 t 03 x 1 2 3 4 5 6 7 1---replace?x? with ?s? to indicate smd package, or ?0? to indicate through hole package 2---rohs 6, change ?r? to ?7? means rohs 5 3---series name 4---series code 5--- input range (36-80v) 6---output voltage (3.3v) 7---suffix xrlp-10t03x rohs com p liant preliminary rev.c
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. absolute maximum ratings parameter min typ max unit notes continuous non-operating input voltage -0.3 - 85 v transient input voltage - - 100 v 100ms 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 80 v input current (full load) - - 0.4 a test at 36vdc input current (no load) - 20 30 ma remote off input current - 5 10 ma input reflected ripple current (rms) - 5 10 ma input reflected ripple current (pk-pk) - 15 30 ma with simulated source impedance of 10uh, 5hz to 20mhz. use a 100uf/100v electrolytic capacitor with esr=1 ohm max, at 200khz@25c. i 2 t inrush current transient - 0.05 0.1 a 2 s turn-on voltage threshold 31 32 33 v turn-off voltage threshold 30 31 32 v other information: input c-l-c filter 0.1uf+10uh+0.47uf recommended input fast-acting fuse on system board 1 a caution: this converter is not internally fused. an input line fuse must be used in application. note: all specifications are typical at 25 c unless otherwise stated. output specifications parameter min typ max unit notes output voltage set point 3.234 3.3 3.366 v vin=48v, io=50% load load regulation - 6 10 mv line regulation - 3 6 mv regulation over temperature (-40deg.c-85deg.c) - 33 60 mv total output voltage variation - 3 5 v% over all line, load & temperature conditions ripple and noise (pk-pk) - 70 120 mv 0-20mhz bw, with a 1f ceramic capacitor and a 10uf tantalum
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. output specifications (continued) parameter min typ max unit notes ripple and noise (rms) - 25 40 mv output current range 0 - 3 a this module is no need minimum load output dc current limit - 4 - a short circuit surge transient - - 3 a 2 s rise time - 10 15 ms - 20 30 ms ton(enable form vin) turn on time - 20 30 ms ton(enable form on/off) overshoot at turn on - 3 5 % output capacitance 0 - 1000 uf transient response overshoot - 150 - mv v 50%~75% of max load settling time - 500 - us overshoot - 150 - mv v 75%~50% of max load settling time vo= 3.3v - 500 - us di/dt=0.1a/us, vin=48vdc, ta=25c, with a 1f ceramic capacitor and a 10uf tantalum cap at 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 - 82 - % vin=48v, full load switching frequency - 300 - khz output voltage trim range 3.0 - 3.6 v over voltage protection(static) - 4.5 - v this voltage is achieved by trimming up output slowly weight - tbd - g fit tbd - calculated per bell core sr-332 (vin=48 v, vo=3.3 v, io=7 a, ta = 25c, fit=10 9 /mtbf) dimensions inches (l w h) millimeters (l w h) 1.10 x 0.96 x 0.335 27.94 x 24.38 x 8.50 - isolation characteristics input to output - - 1500 v isolation resistance 10m - - ohm isolation capacitance - 1500 - 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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. efficiency data efficiency curve 40.00% 45.00% 50.00% 55.00% 60.00% 65.00% 70.00% 75.00% 80.00% 85.00% 0.3a 0.75a 1.5a 2.25a 3a output current (a) efficiency 18v 24v 48v 75v thermal derating curve vin=48v, with maximum j unction tem p erature of semiconductors derated to 120c
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. thermal derating curve (continued) ripple and noise waveforms 36 vdc input, 3.3 vdc/3 a output 48 vdc input, 3.3 vdc/3 a output tem p erature reference p oints on bottom side tem p erature reference p oints on to p side
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. ripple and noise waveforms (continued) 80 vdc input, 3.3 vdc/3 a output note: ripple and noise at full load, 0-20mhz bw, with a 1uf ceramic cap and a 10 uf tantalum cap at output, and ta=25 deg c. transient response waveforms vout=3.3 v, 50% to 75% load transients
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. transient response waveforms (continued) vout=12 v, 75% to 50% load transients note: transient response at vin=48v ta=25 deg c,and with a 1uf ceramic cap and a 10 uf tantalum cap at output. startup & shutdown rise time vout= 3.3v full load at vin=48v@ta=25
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. startup & shutdown (continued) startup time shutdown startup from vin ch1: vo ch3: vin vout= 3.3v full load at vin=48v@ta=25 startup from on/off ch1: vo ch3: on/off vout= 3.3v full load at vin=48v@ta=25 vout= 3.3v full load at vin=48v@ta=25
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 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 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 the remote on/off pin open, unit on. current sink 0 - 0.75 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 10 isolated dc/dc converters 36 vdc - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. output trim equations equations for calculating the trim resistor are shown below. the trim down resistor should be connected between the trim pin and vout pin. the trim up resistor should be connected between the trim pin and the gnd pin. only one of the resistors should be used for any given application. minimum trim down voltage is 3.0v maximum trim up voltage is 3.6v. the total voltage increased by trim and remote sense should not exceed 10% of the nominal output voltage. note : vo_req=desired (trimmed) output voltage[v] output voltage vo=3.3 v vout tr im gnd rtrim-dow n module vout trim gnd rtrim-up module [] ? ? ? ? = k req vo req vo rtrimdown 1 _ 3 . 3 ) 24 . 1 _ ( 525 . 20 [] ? ? = k req vo rtrimup 1 3 . 3 _ 451 . 25 3 3.03 3.06 3.09 3.12 3.15 3.18 3.21 3.24 3.27 3.3 0 100 200 300 400 500 600 700 800 900 1000 adjusted output voltage vo,adj(v) trim resistor value,rtrim_down(kohm) 3.3 3.33 3.36 3.39 3.42 3.45 3.48 3.51 3.54 3.57 3.6 0 100 200 300 400 500 600 700 800 900 1000 adjusted output voltage vo,ad j(v) trim resistor value,rtrim_up(kohm)
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. 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 limiting 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. 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 hiccup mode and restart once every 400ms. the module operates normally when the fault is cleared. test setup: waveform: r = 22k ch1: output voltage waveform ch2: output current waveform test condition: 48v input with a rout (0.171ohm) ch1: output voltage waveform ch2: output current waveform test condition: 48v input with a rout (0.171ohm) expansion of on time portion of above figure vo+ vo- trim r k ch1: output voltage waveform
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. input under voltage lockout fundamental circuit diagram input voltage (v) i npu t cu r r en t voltage falling voltage rising v1 v2 under-voltage lockout v1=31v v2=32v vin + vin- control cir cuit feed back protection cir cuit vo+ vo-
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. 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 setup: item designator parameter vendor vendor p/n 1 c1 2.2uf/100v,ceramic murata grf32er72a225ka11l 2 c2 47uf/100v, al cap nichicon uuj2a470mnl1ms 3 c3 100uf/100v, al cap nichicon uvz2a101mpd 4 c4 1000pf/2000v,ceramic johanson 202r18w102kv4e-****-rc 5 c5 1000pf/2000v,ceramic johanson 202r18w102kv4e-****-rc 6 t1 1.3mh, common mode pulse p0402nl conv.positive input conv.negative input c 1 c2 c3 t1 t1 +vin -vin c4 c5
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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. mechanical outline 0rlp-10t03x pin name function dia. 1 vin(+) positive input voltage 0.04?? 2 vin(-) negative input voltage 0.04?? 3 on/off input to turn converter on and off, referenced to vin(-) 0.04?? 4 vout(+) positive output voltage 0.04?? 5 trim output voltage trim 0.04?? 6 vout(-) negative output voltage 0.04?? note: leave pin 6 open for nominal voltage.
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com 15 isolated dc/dc converters 36 vdc - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsidiary of bel fuse inc. srlp-10t03x 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 +/-0.02 in. (x.x +/-0.5mm) x.xxx +/-0.010 in. (x.xx +/-0.25mm). pin name function dia. 1 vin(+) positive input voltage 0.06?? 2 vin(-) negative i nput voltage 0.06?? 3 on/off input to turn converter on and off, referenced to vin(-) 0.06?? 4 vout(+) positive output voltage 0.06?? 5 trim output voltage trim 0.06?? 6 vout(-) negative output voltage 0.06?? note: leave pin 6 open for nominal voltage.
? 2010 bel fuse inc. specifications subject to change without notice. 081310 16 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 - 80 vdc input, 3.3 vdc/3 a output aug. 13, 2010 bel power inc., a subsid iary of bel fuse inc. revision history date revision changes detail approval 2010-04-06 pa first release xf jiang 2010-06-09 pb updated input c-l-c filter, efficiency data, nr, tr, trim, uvlo, md and sch xf jiang 2010-08-13 pc add td, startup&shutdown, ocp, ovp, fundamental circuit diagram, safety&emc and chart of output trim xf jiang 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.

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