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vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 page 1 of 13 5:1 intermediate bus converter module: up to 500 w output IB050E096T48N1-00 product overview the intermediate bus converter (ibc) module is a very efficient, low profile, isolated, fixed ratio converter for power system applications in enterprise and optical access networks. rated at up to 345 w from 36 vin and up to 500 w from 52 to 60 vin, the ibc conforms to an industry standard eighth brick footprint while supplying the power of a quarter brick. its leading efficiency enables full load operation at 55c with only 200 lfm airflow. its small cross section facilitates unimpeded airflow ? above and below its thin body ? to minimize the temperature rise of downstream components. applications ? enterprise networks ? optical access networks ? storage networks ? automated test equipment ? input: 36 ? 60 vdc ? output: 9.6 vdc at 48 vin ? output current up to 48 a ? output power: up to 500 w [a] ? 2,250 vdc isolation ? 98% peak efficiency ? low profile: 0.38? height above board ? industry standard 1/8 brick pinout ? sine amplitude converter ? low noise 1 mhz zvs/zcs features size: 2.30 x 0.9 x 0.38 in 58,4 x 22,9 x 9,5 mm absolute maximum ratings min max unit notes input voltage (+in to ?in) operating 36 60 vdc non-operating 75 vdc <100 ms input voltage slew rate 5 v/ s en to ?in -0.5 20 vdc output voltage (+out to ?out) -0.5 13.8 vdc output current 48 a pout 500 w dielectric withstand (input to output) 2,250 vdc 1 min. temperature operating junction -40 125 c hottest semiconductor storage -55 125 c [a] for lower power applications see 300 w model ib050e096t40n1-00
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2c page 2 of 13 attribute symbol conditions / notes min typ max unit input (operating from dc input source) operating input voltage 36 48 60 vdc non-operating input surge withstand <100 ms 75 vdc operating input dv/dt 5 v/us undervoltage protection turn-on 31 36 vdc turn-off 29 34 vdc turn-on/ turn-off hysteresis 2 vdc time constant 7s undervoltage blanking time uv blanking time is enabled after start up 50 100 200 s overvoltage protection turn-off 65 69 vdc turn-on 60 69 vdc time constant 4s turn on delay start up inhibit v in reaching turn-on voltage 15 ms to enable function operational, see figure 6 turn-on delay enable to 9 0% v out ; pre-applied v in , see figure 7, 50 s 0 load capacitance from 10% to 90% vout, 10% load, output voltage rise time 0 load capacitance. 50 s restart turn-on delay see page 10 for resart after en pin disable 2000 ms no load power dissipation enabled 2.1 2.5 w disabled 0.12 0.15 w input current low line, full load 9.8 a inrush current overshoot using test circuit in figure 21 15.0 a input reflected ripple current at max power; 400 marms using test circuit in figure 22 peak short circuit input current 30 a repetitive short circuit peak current 25 a internal input capacitance 8.8 f internal input inductance 5nh recommended external 200 nh maximum source inductance 47 470 f input capacitance output dc output voltage band no load, over vin range 7.2 9.6 12.0 v output power [a] 36-55 v in 0 345 w 48-55 v in 0 450 w 52-60 v in 0 500 w output current p 500 w 48 a output start up load of iout max, maximum output capacitance 15 % effective output resistance 4.7 m line regulation (k factor) v out = k ? v in @ no load 0.198 0.200 0.2020 current share accuracy full power operation; see parallel operation 10 % on page 11; up to 3 units all specifications valid at 48 v in , 100% rated load and 25c ambient, unless otherwise indicated. specifications electrical characteristics [a] does not exceed ipc-9592 derating guidelines. at 70c ambient, full power operation may exceed ipc-9592 guidelines, but does no t exceed component ratings, does not activate otp and does not compromise reliability.
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 page 3 of 13 attribute symbol conditions / notes min typ max unit output (continued) efficiency 50% load see figure 1,2 and 3 97.5 97.9 % full load see figure 1,2 and 3 97.0 97.5 % internal output inductance 1.6 nh internal output capacitance 55 f load capacitance nominal load 0 4500 f output ovp set point module will shutdown 13.0 13.8 vdc output voltage ripple 20 mhz bandwidth, using test circuit in 60 150 mvp-p figure 23 of iout max., will not shutdown when started output overload protection threshold into max cout and 15% load 105 150 % auto restart with duty cycle <10% over current protection time constant 5ms short circuit current response time 1.5 s switching frequency 1.0 mhz transient response voltage overshoot 25% load step; 1a /s; see figures 13 & 14 100 mv response time see figures 13 & 14 1 s v in step 5 v step in 1 s within vin operating range 1.25 v pre-bias voltage unit will start up 0 12 vdc into pre-bias voltage on output electrical characteristics (continued) specifications (cont.) attribute symbol conditions / notes min typ max unit mtbf calculated per telcordia sr-332, 40c 1.0 mhrs service life calculated at 30c 7 years over temperature shut down t j ; converter will reset when over 125 130 135 c temperature condition is removed dielectric withstand input to output 2,250 vdc insulation resistance input to output 30 m mechanical weight 0.71 / 20.3 oz/g length 2.30 /58.4 in/mm width 0.9/22.9 in/mm height above customer board 0.38 /9.5 in/mm clearance to customer board from lowest component on ibc 0.12/0.30 in/mm agency approvals ul /csa 60950, en60950 ctuvus low voltage directive ce altitude, operating derate operating temp 1c -500 10,000 feet per 1,000 feet above sea level relative humidity, operating non condensing 10 90 % rohs compliance compatible with rohs directive 2002/95/ec general characteristics all specifications valid at 48 v in , 100% rated load and 25c ambient, unless otherwise indicated. conditions: 25c case, 75% rated load and specified input voltage range unless otherwise specified.
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2c page 4 of 13 test description test detail quantity tested low temp 3 high temp 3 rapid thermal cycling 3 5.2.3 halt (highly accelerated life testing) 6 dof random vibration test 3 input voltage test 3 output load test 3 combined stresses test 3 5.2.4 thb (temp. humidity bias) (72 hr presoak required) 1000 hrs ? continuous bias 30 power cycle - on 42 minutes 5.2.5 htob (high temp. operating bias) off 1 minute, on 1 minute, off 1 minute, on 1 minute, off 1 minute, 30 on 1 minute, off 1 minute, on 1 minute, off 10 minutes. alternating between maximum and minimum operating voltage every hour. 5.2.6 tc (temp. cycling) 700 cycles , 30 minute dwell at each extreme ? 20c minimum ramp rate. 30 5.2.7 power cycling reference ipc-9592a 3 random vibration ? operating iec 60068-2-64 (normal operation vibration) 3 random vibration non-operating (transportation) iec 60068-2-64 3 5.2.8 ? 5.2.13 shock and vibration shock operating - normal operation shock iec 60068-2-27 3 free fall - iec 60068-2-32 3 drop test 1 full shipping container (box) 12 5.2.14.1 corrosion resistance ? not required n/a 5.2.14 other environmental tests 5.2.14.2 dust resistance ? unpotted class ii gr-1274-core 3 5.2.14.3 smt attachment reliability ipc-9701 - j-std-002 3 5.2.14.4 through hole solderability ? j-std-002 5 esd classification testing sample size assumes cdm testing 12 total quantity 161 environmental qualification specifications (cont.) ipc-9592a, based on class ii category 2 the following detail is applicable. ? pre-conditioning required attribute symbol conditions / notes min typ max unit enable (negative logic)* referenced to ?in module enable threshold 0.8 vdc module enable current v en = 0.8 v 130 200 a module disable threshold 2.4 vdc module disable current v en = 2.4 v 10 a disable hysteresis 500 mv enable pin open circuit voltage 2.5 3.0 vdc en to ?in resistance open circuit, 10 v applied between en and -in 35 k enable (positive logic)* referenced to ?in module enable threshold 2.0 2.5 3.0 vdc module disable threshold 1.45 vdc en source current (operating) v en = 5 v 2 ma en voltage (operating) 4.7 5 5.3 vdc control & interface specifications *see part numbering on page 11
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 page 5 of 13 efficiency t amb 25? efficiency (%) iout (a) 38 v 48 v 55 v v : in 94.0 94.5 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 0 5 10 15 20 25 30 35 40 45 50 38 v 48 v 55 v v : in efficiency (%) iout (a) efficiency t amb 55? 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 0 10 20 30 40 50 iout (a) efficiency (%) efficiency t amb 70? 38 v 48 v 55 v v : in 94.5 95.0 95.5 96.0 96.5 97.0 97.5 98.0 98.5 0 10 20 30 40 50 figure 1 ? efficiency vs. output current, 25c ambient figure 2 ? efficiency vs. output current, 55c ambient figure 3 ? efficiency vs. output current, 70c ambient figure 4 ? inrush current at high line 15% load figure 5 ? input reflected ripple current at nominal line, full load figure 6 ? turn on delay time; v in turn on delay at nominal line, 15% load; start up inhibit time specifications (cont.) waveforms
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2c page 6 of 13 figure 9 ? overshoot at turn on at nominal line, 10% load figure 10 ? undershoot at turn off at nominal line, 10% load figure 11 ? load transient response; nominal line load step 75? 100%; 10 a/div figure 12 ? load transient response; full load to 75%; nominal line specifications (cont.) waveforms (cont.) figure 7 ? turn on delay time; enable turn on delay at nominal line, 15% load figure 8 ? output voltage rise time at nominal line, 15% load
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 page 7 of 13 figure 13 ? load transient response; nominal line load step 0 ? 25% figure 14 ? load transient response; 25?0%; nominal line figure 15 ? input transient response; vin step low line to high line at full load figure 16 ? output ripple; nominal line, full load specifications (cont.) waveforms (cont.) figure 17 ? three module parallel array test. vout change when one module is disabled. nominal vin, iout = 96 a figure 18 ? three module parallel array test. vout change with two modules operating and a third module enabled. nominal vin, iout = 96 a
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2c page 8 of 13 specifications (cont.) output current (a) output power derating ambient temperature (?) 200 lfm 400 lfm 600 lfm 0 10 20 30 40 50 25 40 55 70 85 figure 19 ? maximum output power derating vs ambient air temperature. transverse airflow, board and junction temperatures within ipc-9592 derating guidelines output current (a) output power derating ambient temperature (?) 200 lfm 400 lfm 600 lfm 0 10 20 30 40 50 25 40 55 70 85 figure 20 ? maximum output power derating vs ambient air temperature. longitudinal airflow, board and junction temperatures within ipc-9592 derating guidelines v source + _ current probe 47 f ibc +in en ein +out eout load c* *maximum load capacitance figure 21 ? inrush current overshoot v source + _ current probe 470 f ibc +in en ein +out eout load 10 h figure 22 ? input reflected ripple current waveforms (cont.) +in ein +out eout pcd e e load cy = 4700 pf 20 mhz bw 10 f 0.1 f cy b cy d cy c cy a a-d figure 23 ? test circuit; output voltage ripple
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 page 9 of 13 figure 24 ? thermal plot, 200 lfm, 25c, 48 vin, 450 w output power figure 25 ? thermal plot, 200 lfm, 25c, 48 vin, 450 w output power figure 26 ? thermal plot, 400 lfm, 25c, 48 vin, 450 w output power figure 27 ? thermal plot, 400 lfm, 25c, 48 vin, 450 w output power figure 28 ? thermal plot, 600 lfm, 25c, 48 vin, 450 w output power figure 29 ? thermal plot, 600 lfm, 25c, 48 vin, 450 w output power specifications (cont.) thermal data
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2c page 10 of 13 +in / -in ? dc voltage input pins the ibc input voltage range should not be exceeded. an internal undervoltage /overvoltage lockout function prevents operation outside of the normal operating input range. the ibc turns on within an input voltage window bounded by the ?input under-voltage turn-on? and ?input over-voltage turn-off? levels, as specified. the ibc may be protected against accidental application of a reverse input voltage by the addition of a rectifier in series with the positive input, or a reverse rectifier in shunt with the positive input located on the load side of the input fuse. the connection of the ibc to its power source should be implemented with minimal distribution inductance. if the interconnect inductance exceeds 100 nh, the input should be bypassed with a rc damper to retain low source impedance and stable operation. with an interconnect inductance of 200 nh, the rc damper may be 47 f in series with 0.3 . a single electrolytic or equivalent low-q capacitor may be used in place of the series rc bypass. en - enable/disable negative logic option if the en port is left floating, the ibc output is disabled. once this port is- pulled lower than 0.8 vdc with respect to ?in, the output is enabled. the en port can be driven by a relay, opto-coupler, or open collector transistor. refer to figures 6 and 7 for the typical enable / disable characteristics. this port should not be toggled at a rate higher than 1 hz. the en port should also not be driven by or pulled up to an external voltage source. positive logic option if the en port is left floating, the ibc output is enabled. once this port is pulled lower than 1.4 vdc with respect to ?in, the output is disabled. this action can be realized by employing a relay, opto-coupler, or open collector transistor. this port should not be toggled at a rate higher than 1 hz. the en port should also not be driven by or pulled up to an external volt- age source. the en port can source up to 2 ma at 5 vdc. the en port should never be used to sink current. if the ibc is disabled using the en pin, the module will attempt to restart approximately every 2000ms. once the module has been disabled for at least 2000ms, the turn on delay after the en pin is enabled will be as shown in figure 7. +out / -out ? dc voltage output pins total load capacitance at the output of the ibc should not exceed the specified maximum. owing to the wide bandwidth and low output impedance of the ibc, low frequency bypass capacitance and significant energy storage may be more densely and efficiently provided by adding capacitance at the input of the ibc. pin / control functions top view 1 2 3 5 4 pin function 1 vin+ 2 enable 3 vin- 4 vout- 5 vout+ figure 30 ? ibc pin designations
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 page 11 of 13 parallel operation the ibc will inherently current share when operated in an array. arrays may be used for higher power or redundancy in an application. current sharing accuracy is maximized when the source and load impedance presented to each ibc within an array are equal. the recommended method to achieve matched impedances is to dedicate common copper planes within the pcb to deliver and return the current to the array, rather than rely upon traces of varying lengths. in typical applications the current being delivered to the load is larger than that sourced from the input, allowing narrower traces to be utilized on the input side if necessary. the use of dedicated power planes is, however, preferable. one or more ibcs in an array may be disabled without adversely affecting operation or reliability as long as the load does not exceed the rated power of the enabled ibcs. the ibc power train and control architecture allow bi-directional power transfer, including reverse power processing from the ibc output to its input. the ibc?s ability to process power in reverse improves the ibc tran- sient response to an output load dump. thermal considerations the temperature distribution of the vi brick can vary significantly with its input /output operating conditions, thermal management and environmental conditions. although the pcb is ul rated to 130c, it is recommended that pcb temperatures be maintained at or below 125c. for maximum long term reliability, lower pcb temperatures are recommended for continuous operation, however, short periods of operation at 125c will not negatively impact performance or reliability. warning: thermal and voltage hazards. the ibc can operate with surface temperatures and operating voltages that may be hazardous to personnel. ensure that adequate protection is in place to avoid inadvertent contact. input impedance recommendations to take full advantage of the ibc capabilities, the impedance presented to its input terminals must be low from dc to approximately 5 mhz. the source should exhibit low inductance and should have a critically damped response. if the interconnect inductance is excessive, the ibc input pins should be bypassed with an rc damper (e.g., 47 f in series with 0.3 ) to retain low source impedance and proper operation. given the wide bandwidth of the ibc, the source response is generally the limiting factor in the overall system response. anomalies in the response of the source will appear at the output of the ibc multiplied by its k factor. the dc resistance of the source should be kept as low as possible to minimize voltage deviations. this is especially important if the ibc is operated near low or high line as the overvoltage /undervoltage detection circuitry could be activated. input fuse recommendations the ibc is not internally fused in order to provide flexibility in configuring power systems. however, input line fusing of vi bricks must always be incorporated within the power system. a fast acting fuse should be placed in series with the +in port. see safety agency approvals. application notes for ibc and vi brick application notes on soldering, thermal management, board layout, and system design visit vicorpower.com . applications note ib 050 = 36-60 vdc e 096 t 40 n = negative 1 = 0.145 -00 = open frame ib 050 = 36-60 vdc e 096 t 48 p = positive 2 = 0.210 part numbering product family input voltage package nominal output voltage temperature grade output current enable logic pin length options
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2c page 12 of 13 figure 31 ? ibc outline drawing figure 32 ? ibc pcb recommended hole pattern mechanical drawings
vi brick ibc module IB050E096T48N1-00 vicorpower.com rev. 1.2 1/2012 vicor?s comprehensive line of power solutions includes high density ac-dc and dc-dc modules and accessory components, fully configurable ac-dc and dc-dc power supplies, and complete custom power systems. information furnished by vicor is believed to be accurate and reliable. however, no responsibility is assumed by vicor for its use. vicor components are not designed to be used in applications, such as life support systems, wherein a failure or malfunction could result in injury or death. all sales are subject to vicor?s terms and conditions of sale, which are available upon request. specifications are subject to change without notice. intellectual property notice vicor and its subsidiaries own intellectual property (including issued u.s. and foreign patents and pending patent applications) relating to the products described in this data sheet. interested parties should contact vicor's intel- lectual property department. the products described on this data sheet are protected by the following u.s. patents numbers: 5,945,130; 6,403,009; 6,710,257; 6,911,848; 6,930,893; 6,934,166; 6,940,013; 6,969,909; 7,038,917; 7,166,898; 7,187,263; 7,361,844; d496,906; d505,114; d506,438; d509,472; and for use under 6,975,098 and 6,984,965 vicor corporation 25 frontage road andover, ma, usa 01810 tel: 800-735-6200 fax: 978-475-6715 email customer service: custserv@vicorpower.com technical support: apps@vicorpower.com warranty vicor products are guaranteed for two years from date of shipment against defects in material or workmanship when in normal use and service. this warranty does not extend to products subjected to misuse, accident, or improper applica- tion or maintenance. vicor shall not be liable for collateral or consequential damage. this warranty is extended to the original purchaser only. except for the foregoing express warranty, vicor makes no warranty, express or implied, including, but not limited to, the warranty of merchantability or fitness for a particular purpose. vicor will repair or replace defective products in accordance with its own best judgement. for service under this war- ranty, the buyer must contact vicor to obtain a return material authorization (rma) number and shipping instructions. products returned without prior authorization will be returned to the buyer. the buyer will pay all charges incurred in re- turning the product to the factory. vicor will pay all reshipment charges if the product was defective within the terms of this warranty. information published by vicor has been carefully checked and is believed to be accurate; however, no responsibility is assumed for inaccuracies. vicor reserves the right to make changes to any products without further notice to improve reliability, function, or design. vicor does not assume any liability arising out of the application or use of any product or circuit; neither does it convey any license under its patent rights nor the rights of others. vicor general policy does not recommend the use of its components in life support applications wherein a failure or malfunction may directly threaten life or injury. per vicor terms and conditions of sale, the user of vicor components in life support applications assumes all risks of such use and indemnifies vicor against all damages.

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