$ features datels bmp models are fully potted, 25-40 watt, dual-output dc/dc convert- ers designed to meet ul1950 and en60950-1 safety standards. the combination the bmps higher ef? ciencies and thermally conductive potting com- pound enables these devices to achieve higher operating temperatures without derating. the 2" x 3" bmp "footprint" conforms to the standard pinout and pin geometries of most 3" x 3" devices (a 33% space savings) while delivering 60% more power (40w vs. 25w). applicable to a wide range of telecom, computer and other oem applications, bmp model dc/dcs offer 5v, 12v and 15v outputs. they operate from four different input voltage ranges with total available output being a function of the selected range. "q12" models operate from 10-36v and deliver 25w. "q48" models operate from 18-75v and deliver 30w. for "d24" and "d48" models, the input ranges and output powers are 18-36v at 35w and 36-75v at 40w, respectively. these devices employ corrosion-resistant metal cases with plastic headers. heat-generating transformer cores and power semiconductors are mounted directly to the cases, which have threaded inserts for optional add-on heat sinks or pcb mounting. temperature derating information is provided for operation with and with- out heat sinks and forced air ? ow. all devices feature input pi ? lters, input overvoltage shutdown, output overvolt- age protection, output current limiting, and thermal shutdown. ul, csa, en and iec compliance testing is currently in progress (75v-input devices will be ce marked) as are full emi/emc characterizations. contact datel for the latest available informa- tion. figure 1. simpli? ed schematic opto isolation reference & error amplifier pwm controller +v in C v in on/off control trim common +v out C v out case C v in pwm higher operating temperatures fully potted designed to meet ul1950 and en60950-1 (basic insulation) mark available (75v-input models) fully isolated, 1500vdc guaranteed 25/30/35/40w output power standard pinout! smaller size! new 2" x 3" package ? ts 3" x 3" footprint 5v, 12v or 15v outputs four input voltage ranges: 10-36v, 18-36v 18-75v, 36-75v high ef? ciencies (to 88%) fully i/o protected v out trim and on/off control modi? cations and customs for oems typical topology is shown bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 1 of 6 for full details go to www.murata-ps.com/rohs www.murata-ps.com www.murata-ps.com/support
as shown below, bmp model dc/dc converters are classi? ed by output power. for dual-output devices, the total output power from the two outputs can not exceed the rated power. for example, "q48" models have a maxi- mum output power of 30w. therefore, if the +output is sourcing 20 watts, the Coutput is limited to sourcing 10 watts ensuring the total output power does not exceed 30 watts. output con? guration: b = bipolar nominal output voltages: 5, 12 or 15 volts 5 b mp 4 - / d48 - input voltage range: q12 = 10-36 volts (24v nominal) d24 = 18-36 volts (24v nominal) q48 = 18-75 volts (48v nominal) d48 = 36-75 volts (48v nominal) maximum output current in amps from each output fully potted metal package ? typical at t a = +25c under nominal line voltage and balanced "full-load" conditions unless otherwise noted. for bmp devices, "full load" is a function of each device's input voltage range. see output power considerations and technical notes for more details. ? ripple/noise (r/n) measured over a 20mhz bandwidth. ? balanced loads, 10% to 100% load. ? nominal line voltage, no-load/full-load conditions. performance speci? cations and ordering guide r/n (mvp-p) ? load ? v out (volts) package (case, pinout) ef? ciency regulation (max.) line v in nom. (volts) range (volts) model i in ? (ma) ? max. typ. typ. min. bmp-5/4-q12 5 4 60 120 0.5% 1% 24 10-36 15/1225 82% 85% c11, p15 bmp-5/4-d24 5 4 75 125 0.5% 1% 24 18-36 15/1696 84% 86% c11, p15 bmp-5/4-q48 5 4 75 125 0.5% 1% 48 18-75 25/735 82% 85% c11, p15 bmp-5/4-d48 5 4 75 125 0.5% 1% 48 36-75 20/980 83% 85% c11, p15 bmp-12/1.65-q12 12 1.65 60 100 0.5% 1% 24 10-36 20/1224 83% 85% c11, p15 bmp-12/1.65-d24 12 1.65 60 100 0.5% 1% 24 18-36 15/1667 85% 87% c11, p15 bmp-12/1.65-q48 12 1.65 75 120 0.5% 1% 48 18-75 15/727 84% 86% c11, p15 bmp-12/1.65-d48 12 1.65 75 125 0.5% 1% 48 36-75 15/948 85% 87% c11, p15 bmp-15/1.3-q12 15 1.3 60 125 0.5% 1% 24 10-36 20/1225 83% 85% c11, p15 bmp-15/1.3-d24 15 1.3 60 125 0.5% 1% 24 18-36 15/1648 85% 88% c11, p15 bmp-15/1.3-q48 15 1.3 75 125 0.5% 1% 48 18-75 25/727 84% 86% c11, p15 bmp-15/1.3-d48 15 1.3 60 125 0.5% 1% 48 36-75 20/934 84% 87% c11, p15 i out (amps) part number structure model maximum output power q12 25 watts q48 30 watts d24 35 watts d48 40 watts output power considerations output input rohs-6 compliant* c * contact murata power solutions (datel) for availability. - bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 2 of 6 www.murata-ps.com/support
7 6 8 9 4 1 2 3 5 10 metal case bottom view insulated base (4) threaded inserts #4-40 thd thru 1.200 (30.48) 2.500 (63.50) 2.04 (51.82) 0.20 min (5.08) 1.600 (40.64) 4 eq. sp. @ 0.400 (10.16) 0.55 (13.97) 0.040 0.002 dia. (1.016 0.051) 2.600 (66.04) 0.22 (5.59) 0.22 (5.59) 0.27 (6.86) 0.42 (10.67) 3.04 (77.22) dimensions are in inches (mm) mechanical specifications case c11 2.600 (66.04) 0.20 (5.08) 2.00 (50.80) 1.200 (30.48) 3.00 (76.20) 0.50 (12.70) 0.40 (10.16) 0.10 (2.54) 0.120 dia. (3.048) (4 places) material: black anodized aluminum 4 mounting screws and 0.009 (0.229) thermal pad included top view optional heat sink kit (part number hs-23 or hs-23-c ) i/o connections function p15 no pin Cinput +input case on/off control* Coutput no pin common +output tr im pin 1 2 3 4 5 6 7 8 9 10 * see note 4 on next page. third angle projection dimensions are in inches (mm shown for ref. only). components are shown for reference only. tolerances (unless otherwise speci?ed): .xx 0.02 (0.5) .xxx 0.010 (0.25) angles 2? bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 3 of 6 www.murata-ps.com/support
floating outputs since these are isolated dc/dc converters, their outputs are "? oating." any bmp model may be con? gured to produce an output of 10v, 24v or 30v (for 5v, 12v or 15v models, respectively) by applying the load across the +output and Coutput (pins 9 and 6), with either output grounded. the com- mon (pin 8) should be left open. minimum 20% loading is recommended under these conditions. the total output voltage span may be externally trimmed as described below. performance/functional speci? cations typical @ t a = +25c under nominal line voltage and "full-load" conditions, unless noted. ? ? input input voltage range: q12 models 10-36 volts (24v nominal) d24 models 18-36 volts (24v nominal) q48 models 18-75 volts (48v nominal) d48 models 36-75 volts (48v nominal) input current see ordering guide input filter type ? pi overvoltage shutdown: q12 and d24 models 40 volts q48 and d48 models 80 volts reverse-polarity protection yes (instantaneous, 6a maximum) on/off control (pin 5) ? ttl high (or open) = on, low = off output v out accuracy (50% load) 1%, maximum temperature coef? cient 0.02% per c ripple/noise (20mhz bw) ? see ordering guide line/load regulation see ordering guide ef? ciency see ordering guide isolation voltage ? 1500vdc, minimum isolation capacitance 620pf current limiting continuous, auto-recovery overvoltage protection zener/transorb clamps, magnetic feedback dynamic characteristics transient response (50% load step) 300sec max. to 1.5% of ? nal value switching frequency 125khz (10%) environmental operating temperature (ambient): without derating C40 to +60c (model dependent) with derating to +90c (see derating curves) maximum case temperature +90c storage temperature C40 to +105c relative humidity to 85c /85% rh, non-condensing physical safety designed to meet ul/cul/en/iec 60950-1 dimensions 2.04" x 3.04" x 0.55" (51.8 x 77.2 x 14mm) shielding 5-sided case connection pin 4 case material aluminum, black anodized ? nish with plastic header flammability rating ul94v-0 pin material gold-plated copper alloy with nickel underplate weight 6 ounces (170 grams) ? these converters require a minimum 10% loading on each output to maintain speci? ed regulation. operation under no-load conditions will not damage these devices; however they may not meet all listed speci? cations. ? "full load" varies by part number and is determined by the input voltage range as indi cated by the part number suf? x. see technical notes and output power considerations. ? application-speci? c input/output ? ltering can be recommended or perhaps added inter nally upon request. contact datel applications engineering for details. ? applying a voltage to the on/off control pin when no input power is applied to the con verter can cause permanent damage to the converter. ? listed speci? cation is for input-to-output isolation. input-to-case and output-to-case isolation is 1000vdc, minimum. filtering and noise reduction all bmp 25-40 watt dc/dc converters achieve their rated ripple and noise speci? cations without the use of external input/output capacitors. in criti- cal 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 9) and common (pin 8). see figure 7. the caps should be located as close to the converters as possible. typical values are listed in the below. in many applications, using values greater than those listed will yield better results. to reduce input ripple "q12, d24" models 47f, 50v "q48, d48" models 10f, 100v to reduce output ripple 5v outputs 47f, 10v, low esr 12/15v outputs 22f, 20v, low esr input voltage: q12/d24 models 44 volts q48/d48 models 88 volts input reverse-polarity protection current must be <6a. brief duration only. fusing recommended. output overvoltage protection 5v outputs 6.8 volts, limited duration 12v outputs 15 volts, limited duration 15v outputs 18 volts, limited duration output current current limited. max. current and short-circuit duration are model dependent. storage temperature C40 to +105c lead temperature see soldering guidelines these are stress ratings. exposure of devices to greater than any of these conditions may adversely affect long-term reliability. proper operation under conditions other than those listed in the performance/functional speci? cations table is not implied. absolute maximum ratings technical notes v in range q12 d24 q48 d48 fuse value 4a 4a 3a 2a input fusing bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 4 of 6 www.murata-ps.com/support
temperature derating and electrical performance curves q12 models (25 watts) output power (watts) ambient temperature (c) 25 20 15 10 5 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 output power (watts) ambient temperature (c) 25 20 15 10 5 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 9 0 figure 2a. temperature derating without heat sink figure 2b. temperature derating with heat sink output power (watts) ambient temperature (c) 30 25 20 15 10 5 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 9 0 output power (watts) ambient temperature (c) 30 25 20 15 10 5 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 9 0 figure 3a. temperature derating without heat sink figure 3b. temperature derating with heat sink q48 models (30 watts) output power (watts) ambient tem p erature ( c ) 35 30 25 20 15 10 5 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 output power (watts) ambient tem p erature ( c ) 35 30 25 20 15 10 5 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 figure 4a. temperature derating without heat sink figure 4b. temperature derating with heat sink d24 models (35 watts) bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 5 of 6 www.murata-ps.com/support
40 35 30 25 20 15 10 5 0 output power (watts) ambient tem p erature ( c ) C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 natural convection cooling 150 linear feet per minute 300 linear feet per minute figure 5a. temperature derating without heat sink figure 5b. temperature derating with heat sink d48 models (40 watts) output power (watts) ambient tem p erature ( c ) 40 35 30 25 20 15 10 5 0 C40 0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 9 0 natural convection cooling 150 linear feet per minute 300 linear feet per minute temperature derating and electrical performance curves output power bmp model, dual-output dc/dc converters incorporate a design tradeoff be- tween total available output power and input voltage range. the total available power is a function of both the nominal input voltage and the "width" of the input voltage range. for a given nominal input (24v or 48v), narrower ranges (2:1 vs. 4:1) have more available power. for a given "width" of input range (2:1 or 4:1), higher nominal inputs (48v vs. 24v) have more available power. each device, as indicated by its part-number suf? x (q12, q48, d24 or d48) has a total output power limitation of 25, 30, 35 or 40 watts, respectively. observing these power limitations is the user's responsibility. as indicated by its part number structure, each 5v, 12v or 15v bmp device is capable of sourcing up to 4, 1.65 or 1.3 amps, respectively. users have the ? exibility of loading either output up to these limits; however you must be extremely careful not to exceed the total output power rating of any given device. if, for example, a 5v device with a 30w power rating (bmp-5/4-q48) is sourcing 4a from its +5v output (representing 20w of +output power), that device can only supply an additional 10w (2 amps) from its Coutput. as a consequence of this "power-allocation" ? exibility, the de? nition of "full load," as the condition under which performance speci? cations are tested and listed, is ambiguous. the following table lists the positive and negative output currents that datel uses to de? ne each devices "full load." threaded inserts and heatsink installation caution: do not use the threaded inserts to bolt the converter down to a pc board. that will place unnecessary force on the mounting pins. instead, the converter is held securely by only soldering the mounting pins. when attaching the heat sink from above the converter, use a maximum torque of 2 inch-pounds (0.23 n-m) on the 4-40 bolts to avoid damaging the threaded inserts. use a tiny amount of fastener adhesive or 4-40 lockwashers to secure the bolts. soldering guidelines murata power solutions recommends the speci? cations below when installing these converters. these speci? cations vary dependin g on the solder type. exceeding these speci? cations may cause damage to the product. be cautious when there is high atmospheric humidity. we strongly recommend a mi ld pre-bake (100 c. for 30 minutes). your production environment may differ; therefore please thoroughly review these guidelines with your process engineers. wave solder operations for through-hole mounted products (thmt) for sn/ag/cu based solders: for sn/pb based solders: maximum preheat temperature 115 c. maximum preheat temperature 105 c. maximum pot temperature 270 c. maximum pot temperature 250 c. maximum solder dwell time 7 seconds maximum solder dwell time 6 seconds bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 6 of 6 www.murata-ps.com/support
figure 7. using external capacitors to reduce input/output ripple/noise Coutput +input Cinput +output 3 2 9 6 common 8 c in c out c out + + + figure 8. trim connections using a trimpot 20k 5-10 turns +input Cinput trim common 3 2 9 6 8 load load 10 Coutput +output +input Cinput 3 2 +10v 10k 5 on/off control figure 6. driving the on/off control pin voltage output model number range power 5v currents 12v currents 15v currents bmp-5/4-q12 10-36v 25 watts 2.5a (25w) C C bmp-5/4-q48 18-75v 30 watts 3a (30w) C C bmp-5/4-d24 18-36v 35 watts 3.5a (35w) C C bmp-5/4-d48 36-75v 40 watts 4a (40w) C C bmp-12/1.65-q12 10-36v 25 watts C 1.04a (24.96w) C bmp-12/1.65-q48 18-75v 30 watts C 1.25a (30w) C bmp-12/1.65-d24 18-36v 35 watts C 1.46a (35w) C bmp-12/1.65-d48 36-75v 40 watts C 1.67a (40.1w) C bmp-15/1.3-q12 10-36v 25 watts C C 833ma (24.99w) bmp-15/1.3-q48 18-75v 30 watts C C 1a (30w) bmp-15/1.3-d24 18-36v 35 watts C C 1.17a (35.1w) bmp-15/1.3-d48 36-75v 40 watts C C 1.33a (39.9w) de? nition of "full load" for speci? cation purposes table 1. output currents comprising "full load" bmp models 25-40w, dual output, dc/dc converters mdc_bmp25-40w.c01 page 7 of 6 murata power solutions, inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. the descriptions contained her ein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. speci? cations are subject to cha nge without notice. ? 2011 murata power solutions, inc. www.murata-ps.com/support murata power solutions, inc. 11 cabot boulevard, mans? eld, ma 02048-1151 u.s.a. iso 9001 and 14001 registered
|
