datel, inc., 11 cabot boulevard, mansfield, ma 02048 (u.s.a.) tel: (508)339-3000, (800)233-2765 fax: (508)339-6356 email: datellit@mcimail.com packaged in industry-standard dip?s, the 3 watt dual-output models of datel?s xwr series dc/dc converters are fully regulated (0.5% max. line, 1% max. load), fully isolated (1000vdc minimum), extremely efficient (as high as 78% guaranteed) building blocks providing true component-like flexibility and convenience to designers of modern distributed power systems. exploiting high-frequency (170-200khz), flyback topologies and contemporary, highly automated, smt assembly techniques, bwr model dc/dc?s have enough room to include input (pi type) and output filters within their package. offering true "plug-and- play" convenience, these power converters require no external components. they operate over the full ?25 to +75c temperature range with no output power derating. output voltages are either 5, 12 or 15 volts. input voltage ranges are either 4.5-9v ("d5" models), 9-18v ("d12" models) or an ultra-wide 18-72v ("d48" models). transient response time is a quick 200sec. these extremely rugged modules are fully encapsulated with a thermally conductive potting compound. they are moisture and vibration resistant and have established a reputation for outstanding mtbf. for telecommunication, computer and other emi- sensitive applications, these dip-packaged dc/dc converters offer full emi/emc characterization data. industry-standard pinouts make datel?s bwr model 3w dc/dc?s ideal replace- ments for other more costly, less reliable power converters. similarly, they are excellent choices for new design-ins in systems demanding small size, low cost and high reliability. figure 1. simplified schematic dual output bwr models features low-cost, dip-packaged 3 watt, dc/dc converters innovation and ex c ell e n c e ? ? n n n n n n n n n n n n low cost! automated, smt-on-pcb construction no external components required 5, 12 or 15 volt outputs choice of 3 input voltage ranges: 4.5-9 volts 9-18 volts 18-72 volts 1.25" x 0.8" x 0.45" dip form factor industry-standard package and pinout fully isolated, 1000vdc guaranteed guaranteed efficiencies to 78% ?25 to +75c operation with no derating ul 1950, csa 22.2 no. 234 and iec 950 emi/emc characterized modifications and customs for oem?s +v in ? v in +v out ? v out common reference & error amp opto isolation pwm controller
xw r series 3 w, dual o utput dc/dc converters 2 mechanical specifications pin 1 2 3 4 5 6 7 8 i/o connectiions function p2 +input +input ? input ? input common +output common ? output 0.020 0.002 dia. (0.508 0.051) 0.15 min (3.81) 0.45 (11.43) 1.25 (31.75) 0.200 (5.08) 0.10 (2.54) 0.80 (20.32) 0.600 (15.24) 0.100 (2.54) 0.18 (4.57) standoffs 0.025 (0.64) 0.600 (15.24) bottom view 1 2 34 56 8 7 plastic case with an insulated base case c1 bwr-5/250-d12 5 250 75 120 0.5% 1.0% 12 9-18 35/278 75% 77% c1, p2 bwr-5/250-d48 5 250 75 120 0.5% 1.0% 48 18-72 10/76 75% 77% c1, p2 bwr-12/105-d5 12 105 75 150 0.5% 1.0% 5 4.5-9 75/727 70% 72% c1, p2 bwr-12/125-d12 12 125 75 150 0.5% 1.0% 12 9-18 35/346 73% 75% c1, p2 bwr-12/125-d48 12 125 75 150 0.5% 1.0% 48 18-72 10/81 78% 80% c1, p2 bwr-15/85-d5 15 85 75 150 0.5% 0.5% 5 4.5-9 100/736 70% 72% c1, p2 bwr-15/100-d12 15 100 75 150 0.5% 1.0% 12 9-18 35/346 73% 75% c1, p2 bwr-15/100-d48 15 100 75 150 0.5% 1.0% 48 18-72 10/81 78% 80% c1, p2 performance specifications and ordering guide r/n (mvp-p) ? load v out (volts) output package (case, pinout) efficiency regulation (max.) ? line v in nom. (volts) range (volts) model input i in ? (ma) ? max. typ. typ. min. i out (ma, max.) part number structure mechanical specifications nominal output voltages: 5, 12 or 15 volts maximum output current in ma from each output input voltage range: d5 = 4.5-9 volts (5v nominal) d12 = 9-18 volts (12v nominal) d48 = 18-72 volts (48v nominal) wide range input output configuration: b = bipolar 15 b wr 100 d48 -/ - ? typical at t a = +25 c under nominal line voltage and full-load conditions unless otherwise noted. ? ripple/noise (r/n) measured over a 20mhz bandwidth. ? balanced loads, 10% to 100% load. ? nominal line voltage, no-load/full-load conditions.
bwr models 3w, dual output dc/dc converters 3 input voltage: "d5" models 12 volts "d12" models 20 volts "d48" models 80 volts input reverse-polarity protection current must be <2a. brief duration only. fusing recommended. output overvoltage protection none output current current limited. max. current and short-circuit duration are model dependent. "d12" and "d48" models can withstand sustained output short circuits. storage temperature ? 40 to +100 c lead temperature (soldering, 10 sec.) +300 c performance/functional specifications typical @ t a = +25 c under nominal line voltage and full-load conditions, unless noted. ? input input voltage range: "d5" models 4.5-9 volts (5v nominal) "d12" models 9-18 volts (12v nominal) "d48" models 18-72 volts (48v nominal) input current see ordering guide input filter type ? pi reverse-polarity protection yes (instantaneous, 2a maximum) output v out accuracy (50% load) 1%, maximum temperature coefficient 0.02% per c ripple/noise (20mhz bw) ? see ordering guide line/load regulation see ordering guide efficiency see ordering guide isolation voltage ? 1000vdc, minimum current limiting: "d5" models power-limiting technique, auto-recovery "d12" and "d48" models hiccup technique, auto-recovery dynamic characteristics transient response (50% load step) 200sec to 1% of final value switching frequency: "d5" models 200khz "d12" and "d48" models 170khz environmental operating temperature ? (ambient, no derating) ? 25 to +75 c storage temperature ? 40 to +100 c physical dimensions 1.25" x 0.8" x 0.45" (31.8 x 20.3 x 11.4mm) case material diallyl phthalate, ul94v-0-rated pin material brass, solder coated weight 0.5 ounces (14.2 grams) ? these power converters require a minimum 10% loading to maintain specified regulation. operation under no-load conditions will not damage these devices; however they may not meet all listed specifications. ? application-specific internal input/output filtering can be recommended and perhaps added internally upon request. contact datel applications engineering for details. ? devices can be screened or modified for higher guaranteed isolation voltages. contact datel applications engineering for details. ? devices can be warranted or screened for lower-temperature operation. contact datel applications engineering for details. see datel's new bst 3w models for guaranteed operation to ? 40 c. these are stress ratings. exposure of devices to any of these conditions may adversely affect long-term reliability. proper operation under conditions other than those listed in the performance/functional specifications table is not implied. absolute maximum ratings technical notes floating outputs since these are isolated dc/dc converters, their outputs are "floating." any bwr model may be configured to produce an output of 10v, 24v or 30v (for 5v, 12v or 15v models, respectively) by applying the load across the +output and ? output pins (pins 6 and 8), with either output grounded. the common (pins 5 and 7) should be left open. minimum 20% loading is recommended under these conditions. filtering and noise reduction all bwr 3 watt dc/dc converters achieve their rated ripple and noise specifications without the use of external input/output capacitors. in critical applications, input/output ripple and noise may be further reduced by installing electrolytic capacitors across the input terminals and/or low-esr tantalum or electrolytic capacitors across the output terminals. output capacitors should be connected between their respective output pin (pin 6 or 8) and common (pins 5 and 7) as shown in figure 2. the caps should be located as close to the power converters as possible. typical values are listed in the tables below. in many applications, using values greater than those listed will yield better results. to reduce input ripple "d5" models 47f, 15v "d12" models 10f, 35v "d48" models 4.7f, 100v to reduce output ripple 5v outputs 47f, 10v, low esr 12/15v outputs 22f, 20v, low esr in critical, space-sensitive applications, datel may be able to tailor the internal input/output filtering of these units to meet your specific requirements. contact our applications engineering group for additional details.
if you ? re designing with emc in mind, note that all of datel ? s bwr 3 watt dc/dc converters have been characterized for radiated and conducted emissions in our new emi/emc laboratory. testing is conducted in an emco 5305 gtem test cell utilizing emco automated emc test software. radiated emissions are tested to the limits of fcc part 15, class b and cispr 22 (en 55022), class b. correlation to other specifications can be supplied upon request. radiated emissions plots to fcc and cispr 22 for model bwr-5/250-d12 appear below. published emc test reports are available for each model number. contact datel ? s applications engineering department for more details. datel ? s world-class design, development and manufacturing team stands ready to work with you to deliver the exact power converter you need for your demanding, large volume, oem applications. and ... we ? ll do it on time and within budget! our experienced applications and design staffs; quick-turn prototype capability; highly automated, smt assembly facilities; and in-line spc quality-control techniques combine to give us the unique ability to design and deliver any quantity of power converters to the highest standards of quality and reliability. we have compiled a large library of dc/dc designs that are currently used in a variety of telecom, medical, computer, railway, aerospace and industrial applications. we may already have the converter you need. contact us. our goal is to provide you the highest-quality, most cost- effective power converters available. ds0317 8/99 emi radiated emissions innovation and ex c ell e n c e ? ? datel makes no representation that the use of its products in the circuits described herein, or the use of other technical info rmation contained herein, will not infringe upon existing or future patent rights. the descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. specifications are s ubject to change without notice. the datel logo is a registered datel, inc. trademark. datel (uk) ltd. tadley, england tel: (01256)-880444 datel s.a.r.l. montigny le bretonneux, france tel: 01-34-60-01-01 datel gmbh m nchen, germany tel: 89-544334-0 datel kk tokyo, japan tel: 3-3779-1031, osaka tel: 6-354-2025 datel, inc. 11 cabot boulevard, mansfield, ma 02048-1151 tel: (508) 339-3000 (800) 233-2765 fax: (508) 339-6356 internet: www.datel.com email: sales@datel.com data sheet fax back: (508) 261-2857 custom capabilities xw r series 3w, dual output dc/dc converters 80 70 60 50 40 30 20 10 0 ? 10 ? 20 frequency (mhz) 100 1000 radiated emissions fcc class b limit bwr-5/250-d12 radiated emissions fcc part 15 class b, 3 meters converter output = 5vdc @ 203ma radiated emissions (dbv/m) bwr-5/250-d12 radiated emissions en 55022 class b, 10 meters converter output = 5vdc @ 203ma 80 70 60 50 40 30 20 10 0 ? 10 ? 20 fre q uenc y ( mhz ) 100 1000 radiated emissions en 55022 class b limit radiated emissions (dbv/m) input fusing certain applications and/or safety agencies may require the installation of fuses at the inputs of power conversion components. for datel bwr 3 watt dc/dc converters, you should use slow-blow type fuses with values no greater than the following: v in range fuse value "d5" 1.5a "d12" 1a "d48" 0.5a figure 2. using external capacitors to reduce input/output ripple/noise 1, 2 3, 4 6 8 5, 7 c in c out c out + + + ? output +input ? input +output common iso-9001 registered
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