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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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. features ? isolated ? low cost ? fixed frequency (350 khz) ? output over - voltage protection ? high efficiency ? over temperature protection ? high power density ? scp/ocp ? input under - voltage protection ? remote on/off ? class 1, category 2, isolated dc/dc converter (refer to ipc - 9592) ? ul60950 - 1 recognized (ul/cul) ( pending ) applications ? networking ? co mputers and peripherals ? telecommunications description the 0rq1 - c5tv8x is an isolated dc / dc converter that operates from a nominal 48 v dc source. this converter provides up to 108 w of output power. features include remote on/off, short circuit protect ion, over current protection, over - temperature protection, output over - voltage protection, input under - voltage protection. this converter is provided in a compact, though - hole package that is easy to use and provides good thermal performance. part selec tion output voltage input voltage max. output current max. output power typical efficiency model number active high model number active low 1. 8 v dc 36 vdc - 75 vdc 60 a 108 w 89 % 0rq1 - c5tv8a 0rq1 - c5 tv 8b 1. 8 v dc 36 vdc - 75 vdc 60 a 108 w 89 % 0rq1 - c5tv80 0rq1 - c5 tv 8l notes : add ?g? suffix at the end of the model number to indicate tray packaging. part number explanation 0 r q1 ? c 5 t v 8 x 1 2 3 4 5 6 7 1 --- through h ole 2 --- rohs 6, change ? r ? to ? 7 ? means rohs 5 3 --- series nam e, 1/4 brick 4 --- series code 5 --- input range 48 v wide (36 - 75v) 6 --- output v oltage ( 1.8 v ) 7 --- suffix , change ? x ? to ? a ? or ? b ? means with emi shield ; change ? x ? to ? 0 ? or ? l ? means without emi s hield . 0rq1 - c5tv8x rohs compliant rev. e
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 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 n on - operating input transient voltage - - 100 v 100 ms maximum remote on/off - 0.3 - 18 v i/o isolation voltage - - 15 00 v ambient temperature - 40 - 85 ? c storage temperature - 55 - 125 ? c note: all specifications are typical at 25 ? c unless otherwise stated. input specifications parameter min typ max unit notes operating input voltage 36 48 75 v input current (full load) - - 4 a input current (no load) - 70 100 ma remote off input current - 5 10 ma input reflected ripple current ( pk - pk ) - 10 20 ma input reflected ripple current ( rms ) - 2 7 ma w ith simulated source impedance of 1 0 uh, 5 hz to 20 mhz; use a 100 uf/100 v electrolytic capacitor with esr = 1 ohm max at 200 k hz i 2 t inrush current transient - - 1 a 2 s turn - on voltage threshold 3 2 3 4 3 5 v turn - off voltage threshold 3 0 3 2 3 4 v caution: this converter is not internally fused. an input line fuse must be used in application . r ecommend a fast - acting fuse with maximum rating of 5 a on system board. refer to the fuse manufacture ? s datasheet for further information. notes : 1. this converter has internal c - l - c (0.47uf - 2.2u h - 6.6 u f) filter. 2. all specificatio ns are typical at 25 ? c unless otherwise stated . output specifications parameter min typ max unit notes output voltage set point 1.764 1.8 1.836 v vin= 48v, half load load regulation - 5 10 mv vin=48 v, iout=0 - 6 0 a line regulation - 2 7 mv vin=36~75v, full load regulation over temperature ( - 40deg.c - 85deg.c) - - 0.01 %vo /c ripple and noise (pk - pk) - 60 100 mv ripple and noise ( rms ) - 15 30 mv vin=48v, full load , 0 - 20mhz bw, with a 1f ceramic capacitor and a 10f tantalum capacitor at output output ripple and noise(pk - pk) under worst case - - 150 mv over all operating input voltage, load and ambient temperature condition output current range 0 - 60 a
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. output specifications (continued) parameter min typ max unit notes output dc current limit 65 75 85 a rise time - - 15 ms turn on time - 30 50 ms overshoot at turn on - 0 3 % output capacitance 0 - 20,000 uf transient response overshoot - 60 100 mv v50 %~ 75 % of max load settling time - 150 200 us overshoot - 60 100 mv v75 %~ 50 % of max load settling time - 150 200 us di/dt=0.1a/us, vin=48 v dc , ta=25 c , with a 1f ceramic capacitor and a 10uf tantalum cap at output note : all specifications are typical at nominal input, full load at 25c unless otherwise stated . general specifications parameter min typ max unit notes efficiency 87 89 - % vin=48v, full load switching frequency 320 3 5 0 380 khz output voltage trim ran ge 80 - 110 %vo over temperature protection - 1 20 130 ? c over voltage protection(static) 2 - 2.5 v this voltage is achieved by trimming up output slowly. over voltage protection (dynamic) - - 2.8 v the transient over voltage is achieved by connecting the trim pin to vout+ pin through a 1k resistor. weight - 70 - g fit tbd - calculated per bell core s r - 332 ( vin=48 v, vo=1.8v, io=48a, ta = 25c, fit=10 9 /mtbf ) dimensions inches (l w h) millimeters (l w h) 2.3 4 x 1.51 x 0. 5 5 5 9.49 x 38.40 x 13. 8 7 - 0rq1 - c5tv8a & 0rq1 - c5tv8b dimensions inches (l w h) millimeters (l w h) 2. 28 x 1.45 x 0. 402 5 7.88 x 36.83 x 10.21 - 0rq1 - c5tv80 & 0rq1 - c5tv8l isolation characteristics input to output - - 1500 vdc input to case - - 1500 vdc output to case - - 500 vdc isolation resistance 10m - - ohm isolation c apacitance - 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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. efficiency data efficiency curve 82.0% 84.0% 86.0% 88.0% 90.0% 92.0% 15a 30a 45a 60a output current e f f i c i e n c y 36 v 48 v 75 v
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. remote on/off parameter min typ max unit notes signal low (unit o n ) - 0.3 - 0.8 v signal high (unit o ff ) active low 2.4 - 18 v the remote on/off pin open, unit o ff. signal low (unit o ff ) - 0.3 - 0.8 v signal high (unit o n ) active high 2.4 - 18 v the remote on/off pin open, unit o n. current si nk 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 remo te 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 6 isolated dc/dc converters 36 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 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 sense ( - ) pin. the trim up resistor should be connecte d between the trim pin and the sense (+). only one of the resistors should be used for any given application. m inimum trim down voltage is 1.44 v maximum trim up voltage is 1.98 v. the total voltage increased by trim and remote sense should not exceed 10 % o f the nominal output voltage. note: vadj is the desired output voltage vo = 1.804v @iout=0 ? ? ? ? ? k delta rtrimdow n 22 . 10 511 ? ? ? ? ? ? ? ? ? ? k delta vo delta rtrimup 22 . 10 225 . 1 626 11 . 5 ) 100 ( vout +sense -sense gnd trim rtrim_down vout +sense -sense gnd trim rtrim_up ? ? ? ? 100 % vadj vo delta vo ? ? ?
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. remote sense this module has remote sense compensation feature. it can minimize the effects of resistance between mod ule?s output and load in system layout and facilitates accurate voltage regulation at load terminals or other selected point. 1. the remote sense lines carries very little current and hence do not require a large cross - sectional area. 2. this module compe nsates for a maximum drop of 10% of the nominal output voltage. 3. if the unit is already trimmed up, the available remote sense compensation range should be correspondingly reduced. the total voltage increased by trim and remote sense should not exceed 10 % of the nominal output voltage. 4. when using remote sense compensation, all the resistance, parasitic inductance and capacitance of the system are incorporated within the feedback loop of this module. the can make an effect on the module's compensation, affecting the stability and dynamic response. a 0.1uf ceramic capacitor can be connected at the point of load to de - couple noise on the sense wires. 5. recommend the connection of remote sense compensation as below figure. there are a resistor rs+ (10 ohm ) from vo+ to sense+ and a resistor rs - (10 ohm)) from vo - to sense - inside of this module. 6. if not using remote sense compensation, please connect sense directly to output at module's pin, that is, connect sense+ to vo+ and sense - to vo - at module's pin, the shorter the better. s ee below figure. sense + sense - r s - v o - vo + r s + load sense + sense - r s - vo - v o + r s + load
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 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 f or 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 210ms. the module operates normally when the output curr ent goes into specified range. the typical av erage output current is 3a during hiccup. vin=48v expansion of on time portion over voltage protection the output overvoltage protection co nsists of circuitry that monitors the vo ltage 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 350ms. the module operates normal ly when the fault is cleared. test setup: w aveform : r 1k vo + vo - trim r k sense + sense - trim r k vin=48v, iout=5a
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 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 120c in non - latch mode; the hottest component q1 reaches 120c with 1 00lfm 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 temper ature, input voltage, load...). input u nder - voltage l ockout v1=3 2 v v2=34v input voltage ( v ) i n p u t c u r r e n t voltage falling voltage rising v 1 v 2 under - voltage lockout
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. ripple and noise waveforms 48vdc input, 1.8vdc/60a output note: ripple and noise at full load, with a 1uf ceramic cap and a 10 uf tanta lum cap at output and ta=25 deg c. transient response waveforms vout=1.8v 50% - 75% load transients at vin=48v vout=1.8v 75% - 50% load transients at vin=48v note: t ransient response at di/dt=0.1a/us, 1uf ceramic cap and 10uf alu minum cap at output and 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 11 isolated dc/dc converters 36 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. startup & shutdown rise time s hutdown vin=48v, vo= 1.8 v, io= 60 a vin=48v, vo= 1.2 v, io= 60 a s tartup time startup from vin startup from on/off ch1: vo ch1: vo ch3: vin ch3: on/off vin=48v, vo= 1.2 v, io= 60 a vin=48v, vo= 1.2 v, io= 60 a
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. thermal derating curve maximum junction temperature of semiconductors derated to 120 degree c. derating curve under normal input temperature reference points on top side temperature reference points 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 13 isolated dc/dc converters 36 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 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 filte r setup: item designator parameter vendor vendor p/n 1 c1 1uf/100v,ceramic murata grm32er72a105ka01l 2 c2 0.1uf/100v, ceramic tdk c3216x7r2a104k 3 c3 100uf/100v, al cap nichicon uvz2a101mpd 4 c4 22 00p f/ 2 000v,ceramic johanson 631r15w222k v4te 5 c5 22 00p f/ 2 000v,ceramic johanson 631r15w222kv4te 6 t1 1.3mh, common mode pulse p0402nl conv.positive input conv.negative input c 1 c2 c3 t1 t1 +vin - vin c 4 c 5
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. safety & emc (continued) positive negative layout layout of components on bottom side layout of components on top side
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 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. m echanical outline 0rq1 - c5tv8a and 0rq1 - c5tv8b pin connections pin function pin size 1 v in ( - ) 0.040 ?? 2 on/o ff 0.040 ?? 3 vin (+) 0.040 ?? 4 v o (+ ) 0.0 6 0 ?? 5 sense( + ) 0.0 40 ?? 6 trim 0.0 40 ?? 7 sense( - ) 0.040 ?? 8 vo ( - ) 0.0 60 ?? notes: 1. pin 5 must be connected to vo( + ) . 2. pin 7 must be connected to vo( - ) .
bel fuse inc . 206 van vorst street, jersey city, nj 07302 ? tel 201 - 432 - 0463 ? fax 201 - 432 - 9542 ? www.belfuse.com 16 isolated dc/dc converters 36 - 75 v dc input 1. 8 vdc /60 a output converter f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. mechanical outline 0rq1 - c5tv80 and 0rq1 - c5tv8l note: this module is recommended and compatible with pb - free wave solderin g and must be soldered using a peak solder temperature of no more than 26 0 oc for less th a n 5 seconds . note : 1 ) all pins: material - copper alloy ; finish ? 3 micro inches minimum gold over 50 micro inches minimum nickel plate . 2 ) undimensioned component s 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 connections pin function pin size 1 v in ( - ) 0.040 ? ? 2 on/off 0.040 ?? 3 vin (+) 0.040 ?? 4 v o (+ ) 0.0 6 0 ?? 5 sense( + ) 0.0 40 ?? 6 trim 0.0 40 ?? 7 sense( - ) 0.040 ?? 8 vo ( - ) 0.0 60 ?? notes: 1. pin 5 must be connected to vo( + ) . 2. pin 7 must be connected to vo( - ) .
? 20 1 1 bel fuse inc. specifications subject to change without notice. 0 22111 17 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 kow loon, 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 - 75 v dc input 1. 8 vdc /60 a output f eb . 2 1 , 20 1 1 bel power inc. , a subsidiary of bel fuse inc. revision history date revi sion changes detail approval 200 8 - 0 9 - 19 p a first release yp zh ou 200 8 - 1 2 - 02 p b update mechanical drawing. yp zhou 2009 - 05 - 06 pc 1. update efficiency . 2. add mechanical drawing , efficiency data , ripple and transients? wave and the derating curve . yp zhou 20 10 - 0 1 - 2 7 d 1. update the max value of continuous input volt age from 75v to 80v. 2 . upda t e the no load input current from 180ma to 100ma . 3 . update the max value of l ine regulation from 5mv to 7mv. jz wang 20 1 1 - 0 2 - 2 1 e change the max height of 0rq1 - c5tv8a & 0rq1 - c5tv8b from 0.53 inch to 0.55 inch . jz wang rohs com p liance complies with the european directive 2002/95/ec, calling fo r the elimination of lead and other hazardous substances from electronic products.

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