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rev. a a 2 , 26 - mar - 201 2 page 1 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc ap plications ? features ? ? ? ? ? ? ? ? rd ,csa60601 - 1 3rd and iec609 50 - 1 3rd ? 3 ? ? description this is a compact and efficient series of ac - dc power supplies suited for medical and many o ther applications. this family meet s the international information technology safety standards. their high efficiency allows a very minimal power loss in end equipment, resulting in higher reliability, ease of thermal management, and regulatory approvals for an environmentally frien dly end product. with approval to means of patient protection (mopp), the mbc250 is suitable for use in body floating (bf) applications wherein equipment may come in direct contact with the patient, such as blood pressure monitors or ultrasound equipment. content 1 ordering information ................................ ............ 2 2 overview ................................ ................................ ....... 2 3 absolute maximum ratings ................................ ... 3 4 environmental and mechanical ......................... 3 5 input specifications ................................ ................ 3 5.1 inp ut fuse ................................ ............................ 4 5.2 inrush current ................................ ................. 4 5.3 input under - voltage ................................ ....... 4 5.4 pow er factor correction ........................... 4 5.5 efficiency ................................ ............................ 5 6 output specifications ................................ ............ 6 7 protection ................................ ................................ . 10 7.1 overvoltage protection ............................ 10 7.2 current limitation ................................ ......... 10 8 power good signal ................................ ................ 11 9 electromagnetic compatibility ....................... 11 9.1 immunity ................................ .............................. 11 9.2 emission ................................ .............................. 11 10 safety / approvals ................................ ............... 12 11 mechanical ................................ .............................. 13 11.1 dimensions ................................ ....................... 13 11.2 connections ................................ ................... 15
rev. a a 2 , 26 - mar - 201 2 page 2 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 1 ordering information product family o utp ut power dash # output s standard: 0 s - type: 1 - 9 vo - voltage ro hs compliant m bc 25 0 - 10xx 25 0 w - 1 0 12vdc / 24 vdc / 48vdc g 2 overview the mbc250 - 10 xx g is a high efficiency and high power density ac to dc power supply . it use single phase transition mode pfc converter and well proven two - fet forward converter with ou tput diode rectifiers , providing increased system reliability and high efficiency. with around 1 m/s system air cooling, mbc250 - 1012g can delivery up to 228w continuous output power and 252w for mbc250 - 1024g and mbc250 - 1048g . figure 1 : m bc 25 0 - 10 xx g b lock d iagram
rev. a a 2 , 26 - mar - 201 2 page 3 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 3 absolute maximum ratings stresses in excess of the absolute maximum ratings may cause performance degradation, adversely affect long - term reliability, and cause p ermanent damage to the supply . parameter conditions / description min nom max unit v i maxc max continuous input continuous 264 vac 4 environmental and mechanic al parameter conditions / description min nom max unit t a ambient temperature v i min to v i max , i 1 nom , - 1 0 +5 0 c t aext extended temp range d erated outpu t +5 0 + 70 c t s storage temperature non - operational - 4 0 + 85 c dimensions width 76.2 mm height 38.1 mm depth 127.0 mm m weight 0.5 kg 5 input specifications general condition: t a = - 1 0 5 0 c unless otherwise noted. active f an air cooling required : 200 lfm (1 m/s) parameter conditions / description min nom max unit v i nom nominal input voltage 100 2 4 0 vac v i input voltage ranges normal operating ( v i min to v i max ) 90 264 vac i i max max input current 3 .5 a rms i i p in rush c urrent l imitation v i nom =115 vac , t = 25c (see figure 2 ) v i nom =230 vac , t = 25c (see figure 3 ) 30 60 a p f i input frequency 47 50/60 63 hz pf power f actor v i nom = =264vac, > 0. 5 i o nom 0.9 w/va v i on turn - on input voltage 1) ramping up 8 2 8 9 vac v i off turn - off input voltage 1) ramping down 7 8 8 5 vac v i nom =230vac, 0. 5 ? i o nom , v o nom , t a = 25 c 88 2 ) % v i nom =230vac, 1.0 ? i o nom , v o nom , t a = 25 c 90 t hold hold - up time after last ac zero point, v o within regulation, v i = 115 vac, p o nom 1 2 1 8 ms l i earth leakage current 264vac a t 60 hz 300 ua 1) the power supply is provided with a minimum hysteresis of 2 v during turn - on and turn - off within the ranges. 2) for mbc250 - 1012g /1048g half load minimum efficiency is 87.5% .
rev. a a 2 , 26 - mar - 201 2 page 4 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc inp ut fuse double fusing with 5a slow - blow type (5 20 mm) , in series with l ive and neutral line inside of the power supply protect s against severe defects. the fuse s and a vdr form together with the input filter an effective protection against high input tr ansients. 5.1 inrush current the ac - dc power supply exhibit s an x - capacitance of only 2.0 f, resulting in a low and short peak current, when the supply is connected to the mains. the internal bulk capacitor will be charged through an power resistor which will limit the inrush current (see figure 2 and 3). figure 2 : inrush current, v in = 115 v ac , phase= 9 0 ch 1 : v in ( 200 v/div), ch 2 : i in ( 10 a/div) test data: the inrush current is 1 3 a at 115vac input. figure 3: inrush current, v in = 230v ac , phase = 9 0 ch 1 : v in (2 0 0v/div), ch 2 : i in ( 10 a/div) test data: the inrush current is 3 0 a at 230vac input. 5.2 input under - voltage if the sinusoidal input voltage stays below the input under voltage lockout threshold v i on , the supply will be inhibited. once the inp ut voltage returns within the normal operating range, the supply will return to normal operation again. 5.3 power factor correction p ower factor correction (pfc) is achieved by controlling the input current waveform synchronously with the input voltage. a spec ified pfc contr oller is implemented in single phase transition mode topology giving outstanding pfc
rev. a a 2 , 26 - mar - 201 2 page 5 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc results over a wide input voltage and load ranges. the input current will follow the shape of the input voltage. 5.4 efficiency t he high efficiency ( see figure 4, 5 and 6 ) is achieved by using state - of - the - art silicon power devices in conjunction with transition mode pfc topolog y minimizing switching losses. synchronous rectifiers on the output reduce the losses in th e high current output path for m bc 25 0 - 1012g . schottky diode and ultra fast di ode are used as rectifiers for m bc 25 0 - 1024g and m bc 25 0 - 1048g separately due to the high output v oltage level. figure 4 : efficiency vs. output power at 230vac, m bc 25 0 - 1012g figure 5 : efficiency vs. output power at 230vac, m bc 25 0 - 1024g figure 6 : efficiency vs. output power at 230vac, m bc 25 0 - 1048g 65 68 71 74 77 80 83 86 89 92 0 50 100 150 200 250 po(w) efficiency (%) 65.00 68.00 71.00 74.00 77.00 80.00 83.00 86.00 89.00 92.00 0 50 100 150 200 250 300 po(w) efficiency(%) 65.00 68.00 71.00 74.00 77.00 80.00 83.00 86.00 89.00 92.00 0 50 100 150 200 250 300 po(w) efficiency(%)
rev. a a 2 , 26 - mar - 201 2 page 6 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 6 output specifications g eneral condition: t a = - 1 0 +5 0 c unless otherwise noted. active fan air cooling required: 200 lfm (1 m/s) parameter conditions / description min nom max unit main output v o v o nominal output voltage 0.5 ? o , t amb = 25 c mbc25 0 - 1012g 12.0 vdc m bc 25 0 - 1024g 2 4 .0 vdc m bc 25 0 - 1048g 48 .0 vdc v o set output set point accuracy 0.5 ? i o , t amb = 25 c mbc25 0 - 1012g - 50 50 mv m bc 25 0 - 1024g - 75 75 mv m bc 25 0 - 1048g - 150 150 mv p o nom nominal output power mbc25 0 - 1012g 0 228 w m bc 25 0 - 1024g 0 252 w m bc 25 0 - 1048g 0 252 w i o nom nominal output current mbc25 0 - 1012g 0 19 * a m bc 25 0 - 1024g 0 10.5 * * a m bc 25 0 - 1048g 0 5.25 * ** a v o p - p output ripple voltage v o nom , i o nom , 20 mhz bw mbc25 0 - 1012g 60 120 mvpp m bc 25 0 - 1024g 80 240 mvpp m bc 25 0 - 1048g 150 480 mvpp d v o load load regulation v i = v i nom , 0 - 100 % i o nom mbc25 0 - 1012g - 360 50 360 mv m bc 25 0 - 1024g - 720 80 720 mv m bc 25 0 - 1048g - 1440 130 1440 mv d v o line line regulation v i =v i min i max mbc25 0 - 1012g - 12 0 80 12 0 mv m bc 25 0 - 1024g - 12 0 80 12 0 mv m bc 25 0 - 1048g - 12 0 80 12 0 mv d v dyn dynami c load regulation i o = 50% i o nom , i o = 5 0 100% i o nom , d i o /dt =1 a/s, recovery within 5 % of v o n om mbc25 0 - 1012g - 0.6 0.25 0.6 v m bc 25 0 - 1024g - 1.2 0.45 1.2 v m bc 25 0 - 1048g - 2.4 0.7 2.4 v t rec recovery time 2 ms t delay turn - on delay time required for output within regulation after intial application of ac input @90 vac 0.3 1 2 sec t rise tu rn on rise time v o = 1090% v o nom 10 20 ms c load capacitive loading t amb = 25 c mbc25 0 - 1012g 4200 f f f
rev. a a 2 , 26 - mar - 201 2 page 7 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc * for convection cooling condition , the maximum output current is 10a for mbc250 - 1012g; ** for convection cooling condition, the maximum output current is 5a for mbc250 - 1024g; *** for convection c ooling condition, the maximum output current is 2a for mbc250 - 1048g. ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure5:turn on ac line 115vac,full load (200ms/div) ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure6:turn on ac line 230vac,full load (200ms/div) ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure7:turn off ac line at 115vac,full load (20ms/div) ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure8:turn off ac line at 230vac,full load (20ms/div)
rev. a a 2 , 26 - mar - 201 2 page 8 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure 9 : ac drop out 1 2 ms at 115vac ( 50 ms/div) ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure 10 : ac drop out 1 2 ms at 230vac ( 50 ms/div) ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure 11 : ac drop out 50 ms @115vac ( 50 ms/div) ,vo restart. ch1:vo (10v/div) ch2:vin ( 2 00v/div) figure 12 : ac drop out 50 ms @230vac ( 50 ms/div) ,vo restart.
rev. a a 2 , 26 - mar - 201 2 page 9 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc ch1:vo (10v/div) figure 13 : vo rise time at 115vac ( 2 0 ms/div) ch1:vo (10v/div) figure 1 4 : vo rise time at 230 vac ( 20 ms/div) ch1 : v o ( 200m v/div) ch 2 : i 1 ( 5 a/div) figure 1 5 : load transient v o , 5.25a < - > 10.5 a ( 0.5 m s/div) , 2a/ s ch1 : v o ( 200 mv/div) ch 2 : i 1 ( 5 a/div) figure 1 6 : load trans ient v 0 , 5.25a < - > 10.5 a ( 1 m s/div) , 2a/ s
rev. a a 2 , 26 - mar - 201 2 page 10 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 7 protection parameter conditions / description min nom max unit f input fuses (l and n ) not user accessible, time lag characteristic 5 .0 a vo ov ov threshold mbc25 0 - 1012g 14 .0 16 .0 vdc m bc 25 0 - 1024g 28.0 3 2 .0 vdc m bc 25 0 - 1048g 53 57 vdc i o lim current limit v i > 90 vac, t a < 5 0 c mbc25 0 - 1012g 21 22.5 25 a m bc 25 0 - 1024g 11.5 12.6 13.7 a m bc 25 0 - 1048g 5.8 6.4 6.8 a t sd over temperature on heat sinks automatic shut - down 91 96 101 c 7.1 overvoltage protection the ac - dc power supply provides a fixed threshold overvoltage (ov) protection implemented with a hw comparator. once an ov condition has been triggered, the supply will shut down and latch the fault condition. the latch can be unlocked by disconnecting the supply from the ac mains only . 7.2 current limitation the main output current limitation will decrease with linear derating to 50% at 70 oc if the ambient (inlet) temperature increases beyond 5 0 c (see figure 1 7 ) . figure 1 7 : output current limitation curve 0 20 40 60 80 100 120 -10 0 10 20 30 40 50 60 70 ambient temperature(c) io (%) series1
rev. a a 2 , 26 - mar - 201 2 page 11 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 8 power good s ignal the out - ok output gives a status indication of the converter and the output voltages. it can be used for control functions such as data protection, central syste m monitoring or as a part of a self - testing system. connecting the out - ok as shown in f igure 1 8 , vok <1.0 v indicates that the output voltage(s) of the converter are within the range. note: using the potentiometer, the monitor level tracks the programme d output voltage. in an error condition, if the output voltage is out of range due to overload or an external overvoltage, vok will approach vp. the output is formed by an npn transistor. the signal is isolated from the output. figure 1 8 : power good s ignal 9 electromagnetic compatibility 9.1 immunity note: most of the immunity requirements are derived from en 61000 - 6 - 1:2007 . test standard / description criteria esd contact discharge en 61000 - 4 - 2, level 2 a rf susceptibility en 61000 - 4 - 3, level 3 a fast transient/ burst en 61000 - 4 - 4, l evel 3 b surge en 61000 - 4 - 5 , class 3 b rf conducted immunity en 61000 - 4 - 6, class 3 a magnetic fields en 61000 - 4 - 8 a voltage dips and interruptions en 61000 - 4 - 11 c 9.2 emission test standard / description criteria co nducted emission en550 11 : 0.15 30 mhz, qp and avg, 30 mhz 1 ghz, qp,
rev. a a 2 , 26 - mar - 201 2 page 12 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 10 safety / approvals maximum electric strength testing is performed in the factory according to iec 60 950 - 1 , input - to - output electric strength tests should not be repeated in the field. power - one will not honor any warranty claims resulting from electric strength field tests. parameter description / conditions min nom max unit agency approvals ul60601 - 1 3rd csa60601 - 1 3rd iec 60950 - 1 3rd approved by independent body (see ce declaration) insulation safety rating input / c ase basic input / output reinforced output / c ase basic d c creepage / clearance primary (l/n) to protective ea rth (pe) according to safety standard mm primary to secondary mm electrical strength test input to case 2.3 k v d c input to output 4. 0 k v a c output and signals to case 1 .5 kvac
rev. a a 2 , 26 - mar - 201 2 page 13 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 11 mechanical 11.1 dimensions figure 19 : side view 1 figure 20 : top view figure 21 : side view 2 note: a 3d step file of the power supply casing is available on request. a ir flow direction air flow direction 19.05 2x 115 m3x0.5p thread hole f or customer syste m m ounting; mounting scerw insert into psu chassis 5 .0 m m max. (2holes on each side) 1 2 7 0. 5 j1 j1-1 j2 j3 j1-5 j3-1 ou tsi d e ro w sn lab el i /o label 115 19.05 2x
rev. a a 2 , 26 - mar - 201 2 page 14 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc figure 22 : bottom view 2 figure 2 3 : front view m 3x0. 5 p t hr e a d h o l e f or c ust o m er syst e m m o u ti n g (4 p l ac es o n b o tt o m si d e) a a sect ion a-a 1 1 8 . 7 5 cus t o m er si d e m o u n ti n g scer w i ns ert i n t o p s u c h assis 5 . 0 m m m ax. 6 2 . 8 7 7 6 . 2 0. 5 3 8 . 1 0. 5
rev. a a 2 , 26 - mar - 201 2 page 15 / 15 www.power - one.com mbc25 0 - 10xxg data sheet 12vdc , 24 vdc , 48vdc 11.2 connections copyright ? 2010 power - one inc. all rights reserved. words and logos that are identified as trademarks and/or service marks are, unless noted otherw ise, the trademarks and service marks of power - one inc. in the u.s. and other countries. all other product or service names are the property of their respective holders. po wer - one products are protected under numerous u.s. and foreign patents and pending applic ations, maskwork rights, and copyrights. power - one reserves the right to make changes to any products and services at any time without notice. power - one assumes no responsibility or liability arising out of the application or use of any information, produc t, or service described herein except as expressly agreed to in writing by power - one inc. 1. nuclear and medical applications - power - one products are not designed, intended for use in, or authorized for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the respective di visional president of power - one, inc. 2. technical revisions - the appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. specifications are subject to change without notice.

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