bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output ? isolated ? fixed switching frequency (110 khz) ? high efficiency ? basic insulation ? output short circuit protection ? input under/over voltage protection ? low cost ? over temperature protection ? low thd sine wave output ? excellent thermal performance ? cnt on/off logic ? external output voltage control 65 vrms - 95 vrms ? external digital frequency selection 17.5 hz, 20 hz, 25 hz and 50 hz ? overload protection with advanced output power control description the 0rhb-40trxx is an isolated dc/ac ring generator that operates from a nominal 48 vdc source. this unit provides up to 40 w output power. it is designed to be highly efficient and low cost in a half-brick package. part selection output voltage input voltage max. output power typical efficiency model number active high model number active low 65 vac - 95 vac 36 vdc - 75 vdc 40 w 85% 0rhb-40trg0 0rhb-40trgl 65 vac - 95 vac 36 vdc - 75 vdc 40 w 85% 0rhb-40trh0 0rhb-40trhl notes : 1. 0rhb-40trgx i ndicates application 1, 0rhb-40trhx i ndicates application 2, details please see page 5. 2. add ?g? suffix at the end of the model number to indicate tray packaging. 3. 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 i/o isolation voltage - - 1500 vac ambient temperature -40 c - 85 c storage temperature -50 c - 115 c input specifications parameter min typ max notes input voltage 36 v 48 v 75 v input current (full load) - - 1.5 a input current (no load) - - 60 ma input reflected ripple current (pk-pk) - - 150 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. turn-on voltage threshold - 33 v - under voltage threshold - - 32 v over voltage threshold - - 90 v note : all specifications are typical at 25 c unless otherwise stated. 0rhb-40trxx rohs com p liant rev.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/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output output specifications parameter min typ max notes output voltage set point 92 v 95 v 98 v vin=48 v, io=50% load. trim pin is connected to gnd. output frequency f-1.0 hz f hz f+1.0 hz load regulation - 1%vo 2%vo line regulation - 0.5%vo 1%vo regulation over temperature (-40deg.c - 85deg.c) - - 0.05%vo/c voltage accuracy - 3%vo 5%vo frequency accuracy - - 3%vo thd - - 5% output current range(95 vac) 0 ma - 420 ma output power limit - 50 w - hiccup mode turn on time - - 1000 ms note: all specifications are typical at nominal input, full load at 25 c unless noted. general specifications parameter min typ max notes efficiency 83% 85% - vin=48 v, full load , ta=25 c switching frequency 100 khz 110 khz 120 khz isolation capacitance - 1500 pf - output voltage trim range 65 vac - 95 vac over temperature protection - 125 c - mtbf 2,062,694 hours calculated per bell core sr-332 (i o = 80%load; t a = 25 c) dimensions inches millimeters 2.28 x 2.40 x 0.50 57.91 x 60.96 x 12.70 weight - 66 g - note : all specifications are typical at 25 c unless otherwise stated. control specifications parameter min typ max notes cnt on/off signal high (unit on) 36 v - 75 v signal low (unit off) active high -0.7 v - 30 v the cnt pin open, unit on. signal high (unit off) 36 v - 75 v signal low (unit on) active low -0.7 v - 30 v the cnt pin open, unit off. current source/sink 0 ma - 2 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/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output output trim equations equations for calculating the trim resistor is shown below. the roac resistor should be connected between the trim pin and gnd pin. 56 v 65 v 70 v 75 v 80 v 85 v 90 v 95 v roac(k ? ) open 23.113 12.296 7.224 4.281 2.359 1.005 0 efficiency data efficiency curve 60.0% 65.0% 70.0% 75.0% 80.0% 85.0% 90.0% 95.0% 10 20 30 40 output power(w) efficiency 36 v 48 v 75 v module vout trim gnd roac ) ( 8 . 6 7 . 4 23 / 1292 23 / 1292 ? ? = k vo r oac
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output thermal derating curves with maximum junction temperature of semiconductors derated to 120 degree c. vin=48 v frequency setting output frequency hz optf1 optf2 17.5 0 0 20 0 1 25 1 0 50 1 1 optf1 and optf2: 0: connected to gnd 1: open
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output typical application typical application 1 (0rhb-40trgx) output ac is superimposed on dc bias ? a single dc power supply is used for the ring generator feeding and for the output biasing. typical application 2 (0rhb-40trhx) output ac is superimposed on dc bias ? two dc power supplies are used, one for the ring generator feeding and another for the output biasing. 1 v(+) 4 v(-) 2 cnt 0rhb -40trgx 3 case vo2(~) 5 gnd 6 optf2 7 optf 1 8 trim 9 vo1(~) 10 -48v -48v rtn 220 uf/100 v 220uf/100 v 220 uf /100v 12uh /3a telephone ports + - -48v 0v 1 v(+) 4 v(-) 2 cnt 0rhb-40trhx 3 case vo2(~) 5 gnd 6 optf2 7 optf1 8 trim 9 vo1(~) 10 -48v -48v rtn 220 uf/100v 220 uf/100 v 220uf/100v 12uh/3 a telephone ports + - -48v 0v dc bias 48v
bel fuse inc. 206 van vorst street, jersey city, nj 07302 ? tel 201-432-0463 ? fax 201-432-9542 ? www.belfuse.com isolated dc/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output mechanical outline pin connections pin function pin function pin function 1 vin(+) 5 vo2(~) 8 optf1 2 cnt 6 gnd 9 trim 3 case 7 optf2 10 vo1(~) 4 vin(-)
? 2008 bel fuse inc. specifications subject to change without notice. 090508 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/ac converter 36 vdc - 75 vdc input, 65 vac - 95 vac 17.5, 20, 25, 50 hz/40 w output installation instruction 1) the dc-ac converter can be operated at an ambient temperature up to 85c maximum. 2) the dc-ac converter is a built-in component. during installation into certain equipment the relevant requirements of en 60950-1:2001 + a11 and iec 60950-1:2001 shall be maintained. 3) the creepage distances, clearances and thickness of insulation between unearthed hazardous voltage input and hazardous voltage output circuits have complied with basic insulation requirements according to en 60950-1:2001 + a11 and iec 60950-1:2001. 4) the output ratings as shown on the label must not be exceeded. 5) the equipment is to be supplied from a dc source which is separated from ac mains by double or reinforced insulation, or by basic insulation and suitab le earthing providing equivalent protection. 6) the equipment is intended to be installed into a class i or class ii system, when installed into class i system, protective earth has to be reliably identified and suitable external protection devices have to be provided in the final system. 7) the equipment shall be installed with an external forced air-cooling according to installation instruction accompanied with the unit. the airflow dire ction is towards the side of the equipment. rohs compliance complies with the european directive 2002/95/ec, calling for the elimination of lead and other hazardous substances from electronic products.
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