the bxa40 series providing up to 40 watts, has been conceived as an applications specific range of dc-dc converters, specifically addressing telecommunications, industrial electronics, test equipment, mobile telecommunications and distributed power applications. the series offers two wide input voltage ranges, 18 vdc to 36 vdc and 36 vdc to 75 vdc, and is available with single outputs from 2.9 v to 12 v. the bxa40 series is designed to meet etsi telecoms interface standards ets300-132-2. together with internal filtering, safety approval to iec950 and basic insulation, the 48 v models are ideal for telecommunications applications. the 24 v models are particularly suited to industrial and test equipment applications, featuring en61000-4-2, -3, -4, -5 and -6 immunity compliance. other features include low output ripple, overvoltage protection, indefinite short circuit protection, remote enable and remote sense. embedded power for business-critical continuity bxa40 series single output special features ? pin-compatible with nfc40 series ? meets telecom power supply interface standard ets300-132-2 ? en60950, csa c22.2 no. 950 and ul1950 safety approvals ? en61000-4-2, -3, -4, -5, -6 immunity compliant ? fixed frequency operation at 350 khz typ. ? mtbf in excess of 500,000 hours ? basic insulation system with 1500 vdc isolation ? remote sense on low voltage logic outputs ? output voltage trim ? available rohs compliant ? 2 year warranty total power: 40w input voltage: 18 - 36vdc 36 - 75vdc # of outputs: single safety vde0805/en60950/iec950 file no. 14501-3336-7009 licence no. 6296 ul1950 file no. e174104 csa c22.2 no. 950 file no. lr41062c rev.03.08.07 bxa40s 1 of 4
rev.03.08.07 bxa40s 2 of 4 embedded power for business-critical continuity all specifications are typical at nominal input, full load at 25 c unless otherwise stated. specifications emc characteristics conducted emissions en55022, fcc part 15, level b (see notes 4 and 13) radiated emissions en55022, fcc part 15 level a esd air en61000-4-2, level 3 perf. criteria 1 esd contact en61000-4-2, level 4 perf. criteria 1 surge en61000-4-5, level 3 perf. criteria 1 fast transients en61000-4-4, level 3 perf. criteria 1 radiated immunity en61000-4-3, level 3 perf. criteria 1 conducted immunity en61000-4-6, level 3 perf. criteria 1 general specifications efficiency see table isolation voltage input/output 1500 vdc input/case 1500 vdc switching frequency fixed 350 khz typ. approvals and en60950, ul1950 standards csa c22.2 no. 950 case material aluminum substrate with plastic case material flammability ul94v-0 weight 85 g (3.0 oz) mtbf mil-hdbk-217f 500,000 hours size 2.2 x 2.2 x 0.5 inches 55.9 x 55.9 x 12.7 mm environmental specifications thermal performance baseplate operating -40 c to +105 c temperature non-operating -55 c to +105 c thermal impedance no air flow, no heatsink 8.5 c/w (see note 6) no air flow, with heatsink 7.2 c/w output specifications voltage adjustability 10% line regulation low line to high line 0.3% load regulation full load to no load 1.0% ripple and noise 2.9 v and 3.3 v 30 mv pk-pk (20 mhz bandwidth) 5 v 50 mv pk-pk 12 v 100 mv pk-pk all models 20 mv rms temperature coefficient 0.02%/c overvoltage protection (see note 9) 135% vout short circuit protection (see note 10) continuous transient response 25% to 100% load 4.0% (see note 11) voltage accuracy 1.0% 5 v, 2.0% 12 v remote sense compensated line drops (see note 8) up to 0.5 v on 5 v models compensated line drop up to 300 mv on 2.9 v and 3.3 v models input specifications input voltage range 24 vin nominal 18-36 vdc 48 vin nominal 36-75 vdc reverse voltage (see note 5) protection max. input rise and 48 v 5 v/ms fall time ets300-132 start-up time 30 ms typ. remote on/off logic compatibility cmos/ttl on open-circuit off <1 vdc
rev.03.08.07 bxa40s 3 of 4 embedded power for business-critical continuity specifications contd. notes 1 nominal line, at no load. 2 low line to high line at full load. 3 full load to no-load at nominal line. 4 for conducted noise operation of the bxa40 to vde0871, vde0878 and en55022 level b, see bxa40 design note 101. 5 reverse voltage protection can be implemented by putting a slow blow fuse on the positive input rail. rate the fuse at 200 vdc,1.5 a for 48 vdc inputs and 100 v, 4.5 a for 24 vdc input units. 6 the maximum operating ambient temperature, without derating depends on internal power dissipation and hence efficiency and cooling method. download bxa40 design note 101 which provides detailed thermal calculations and design-in hints from the artesyn website. 7 do not exceed a dv/dt rate of 100 v per second at the trim pin input if output current is less than 0.4% lo max. 8 remote sense is offered as standard on the 2.9 v and 3.3 v products. the bxa40-24s05j and bxa40-48s05j come with remote sense as an option. remote sense design is designated by the suffix -s e.g. bxa40-48s05-smj (for units with metric inserts), bxa40-48s05-sj (for units with imperial inserts). for models without remote sense option, pin 5 and pin 6 are absent. 9 overvoltage protection is 118% on 3.3 v output model. 10 for 2.9 v output, no short circuit protection above 90 c baseplate temp. 11 transient response, 25% to 100% load, 10% for 2.9 v and 3.3 v models. 12 units with the suffix -m at the end of the model number are offered as standard with metric threaded inserts (m3). to order units with imperial threaded inserts (4-40 unc) please remove the suffix -m from the model number. these inserts are used for bolting the unit to a pcb and/or fixing heatsinks. 13 an external filter capacitor is necessary for safe operation of the 24 v input models. it is also suggested that an external filter capacitor be used on the 48 v input models. a 4 f (or greater) film capacitor such as: itw paktron capstick series, part number 405k100cs4 4 f/100 v is recommended, if filtering is not used. see bxa40 design note 101. 14 the j suffix indicates that these parts are pb-free (rohs 6/6) compliant. tse rohs 5/6 (non pb-free) compliant versions may be available on special request, please contact your local sales representative for details. 15 notice: some models do not support all options. please contact your local artesyn representative or use the on-line model number search tool at http://www.artesyn.com/powergroup/products.htm to find a suitable alternative. input output output input typical regulation model voltage voltage current (max.) current (1) efficiency line (2) load (3) number (12,14,15) 18-36 vdc 3.3 v 7 a 70 ma 75% 0.3% 1.0% bxa40-24s3v3-smj (8) 18-36 vdc 5 v 8 a 40 ma 81% 0.3% 1.0% bxa40-24s05-mj (8) 36-75 vdc 2.9 v 6.9 a 40 ma 77% 0.3% 1.0% bxa40-48s2v9-smj (8) 36-75 vdc 5 v 8.0 a 30 ma 82% 0.3% 1.0% bxa40-48s05-mj (8) 36-75 vdc 12 v 3.3 a 30 ma 87% 0.3% 1.0% bxa40-48s12-mj pin connections pin number single output 1 + input 2 C input 3 control 4 no connection 5 - sense (8) 6 + sense (8) 7+ output 8 common 9trim 10k trimpot trim down trim up 7 9 8 7 9 8 rt1 or rt2 external output trimming output can be externally trimmed by 10% using either method shown below.
embedded power for business-critical continuity rev.03.08.07 bxa40s 4 of 4 emerson network power and the emerson network power logo are trademarks and service marks of emerson electric co. ?2007 emerson electric co. emerson network power. the global leader in enabling business-critical continuity. emersonnetworkpower. com ac power connectivity dc power embedded power inbound power integrated cabinet solutions outside plant precision cooling site monitoring and services americas 5810 van allen way carlsbad, ca 92008 usa telephone: +1 760 930 4600 facsimile: +1 760 930 0698 europe (uk) waterfront business park merry hill, dudley west midlands, dy5 1lx united kingdom telephone: +44 (0) 1384 842 211 facsimile: +44 (0) 1384 843 355 asia (hk) 16th - 17th floors, lu plaza 2 wing yip street, kwun tong kowloon, hong kong telephone: +852 2176 3333 facsimile: +852 2176 3888 for global contact, visit: www.powerconversion.com technicalsupport@powerconversion.com while every precaution has been taken to ensure accuracy and completeness in this literature, emerson network power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. bottom view all dimensions in inches (mm) 0.3 (7.62) 0.019 (0.50) 0.50 (12.70) 0.15 (3.90) 321 98 76 5 4 2.20 0.02 ( 5 5 . 9 0 0.50 ) 1.90 ( 4 8 . 2 6 ) 1.80 ( 4 5 . 7 2 ) 0.15 ( 3 . 8 2 ) 0.05 ( 1 . 2 7 ) 0.2 (5.08) 0.1 (2.54) 0.6 (15.24) 0.8 (20.32) 0.5 (12.70) 0.2 (5.08) 0.60 (15.24) 1.25 (31.76) 1.90 (48.26) 0.15 (3.82) 0.256 (6.50) diameter stand-off (4 places) metric (suffix '-m'): m3 tap thru. 4 places or imperial (no '-m' suffix) 4- 40 unc (optional) 0.043 0.003(1.02 0.05) diameter typ. tolerance : 0.004 (0.1) (unless otherwise specified) 2.20 0.02 ( 5 5 . 9 0 0.50 )
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