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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 38 60 Vdc Non-operating 75 Vdc <100 mS Input voltage slew rate 5 V/ µs EN to –IN -0.5 20 Vdc Output voltage (+Out to –Out) -0.5 17.2 Vdc Output current 32 A Pout ≤ 300 W Dielectric withstand (input to output) 1,500 Vdc 1 min. Temperature Operating junction -40 125 °C Hottest Semiconductor Storage -55 125 °C [A] See 500W model IB048E120T40N1-00 for 98% peak efficiency.

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 Page 2 of 13 Attribute Symbol Conditions / Notes Min Typ Max Unit INPUT (Operating from DC input source) Operating input voltage 38 48 55 Vdc Non-operating input surge withstand <100 mS 75 Vdc Operating input dV/dt 0.003 5 V/us Undervoltage protection Turn-on 33 38 Vdc Turn-off 31 36 Vdc Turn-on/ Turn-off hysteresis 2 Vdc Time constant 7µ s Undervoltage blanking time UV blanking time is enabled after start up 50 100 200 µs Overvoltage protection Turn-off 60 64 Vdc Turn-on 55 64 Vdc Time constant 4µ s Turn ON delay Start up inhibit VIN reaching turn-on voltage 20 25 30 msto enable function operational , see Figure 6 Turn-on delay Enable to 10% VOUT; pre-applied VIN ,see Figure 7, 0 load capacitance 50 µs Output voltage rise time From 10% to 90% Vout, 10% load, 0 load capacitance 50 µs Restart turn-on delay See page 10 for restart after EN pin disable 250 ms No Load power dissipation Enabled 3.4 3.9 W Disabled 0.17 0.24 W Input current 8.2 A Inrush current overshoot Using test circuit in Figure 21, 15% load, highline 25 A Input reflected ripple current At max power; 400 mArmsUsing test circuit in Figure 22 Peak short circuit input current 30 A Repetitive short circuit peak current 25 A Internal input capacitance 8.8 µF Internal input inductance 5n H Recommended external 200 nH maximum source inductance 47 470 µFinput capacitance OUTPUT DC Output voltage band No load, over Vin range 9.0 12.0 15.0 V Output power [a] 38-60 VIN 0 300 W Output current 32 A Output start up load of Iout max, maximum output capacitance 15 % Effective output resistance 4.4 m Ω Line regulation (K factor) V OUT = K  VIN @ no load 0.247 0.250 0.253 Current share accuracy Full power operation; See Parallel Operation 10 % on page 11; up to 3 units All specifications valid at 48 VIN , 100% rated load and 25°C ambient, unless otherwise indicated. SPECIFICATIONS

Electrical Characteristics

[a] Does not exceed IPC-9592 derating guidelines. At 70°C ambient, full power operation may exceed IPC -9592 guidelines, but does not exceed component ratings, does not activate OTP and does not compromise reliability.

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 Page 3 of 13 Attribute Symbol Conditions / Notes Min Typ Max Unit OUTPUT (Continued) Efficiency 50% load See figures 1,2 and 3. 97.2 97.6 % Full load See figures 1,2 and 3. 97.0 97.5 % Internal output inductance 1.6 nH Internal output capacitance 55 µF Load capacitance 0 3000 µF Output OVP set point Module will shutdown 16.2 Vdc Output voltage ripple 20 MHz bandwidth, using test circuit in 60 150 mVp-pFigure 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 1.2 ms Short circuit current response time 1.5 µs Switching frequency 1.0 MHz Transient Response Voltage overshoot 25% load step; 1A / µS; See Figures 13 & 14 100 mV Response time See Figures 13 & 14 1 µS VIN step 5 V step in 1 µS within Vin operating range 1.25 V Pre-bias voltage Unit will start up 0 15 Vdcinto pre-bias voltage on output Electrical Characteristics (Continued) SPECIFICATIONS (CONT.) Attribute Symbol Conditions / Notes Min Typ Max Unit MTBF Calculated per Telcordia SR-332, 40°C 1.0 Mhrs Service life Calculated at 30°C 7 Years Over temperature shut down TJ; Converter will reset when over 125 130 135 °Ctemperature condition is removed Dielectric withstand Input to output 1,500 Vdc Insulation resistance Input to output 30 M Ω 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/cUL60950-1, EN60950-1, IEC60950-1 cTUVus Low voltage directive (CE Mark) CE Altitude, operating Derate operating temp 1°C -500 10,000 Feetper 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 VIN , 100% rated load and 25°C ambient, unless otherwise indicated. Conditions: 25°C case, 75% rated load and specified input voltage range unless otherwise specified.

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 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

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 µA Module disable threshold 2.4 Vdc Module disable current V EN = 2.4 V 130 µA 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 Ω 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

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 Page 5 of 13 Efficiency (%) Efficiency TAMB 25°C Iout (A)

38 V 48 V 55 VV :IN

92% 93% 94% 95% 96% 97% 98% 99% 0 6 13 19 26 32 Efficiency (%) Efficiency TAMB 55°C Iout (A) 92% 93% 94% 95% 96% 97% 98% 99% 0 6 13 19 26 32 Efficiency (%) Efficiency TAMB 70°C Iout (A) 92% 93% 94% 95% 96% 97% 98% 99% 0 6 13 19 26 32 Figure 1 — Efficiency vs. output current, 25°C ambient Figure 2 — Efficiency vs. output current, 55°C ambient Figure 3 — Efficiency vs. output current, 70°C 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; VIN turn on delay at nominal line, 15% load SPECIFICATIONS (CONT.) WAVEFORMS

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 Page 8 of 13 SPECIFICATIONS (CONT.) Output Current (A) Output Current Derating Ambient Temperature (°C)

200 LFM 400 LFM 600 LFM

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 Current Derating Ambient Temperature (°C) Figure 20 — Maximum output power derating vs ambient air temperature. Longitudinal airflow, Board and junction temperatures within IPC-9592 derating guidelines Vsource Current Probe 47 µF IBC +IN EN –IN +OUT –OUT Load C* *Maximum load capacitance Figure 21 — Inrush current overshoot Vsource Current Probe 470 µF IBC +IN EN –IN +OUT –OUT Load 10 µH Figure 22 — Input reflected ripple current WAVEFORMS (CONT.) +IN –IN +OUT –OUT PCD E – Load Cy = 4700 pF

20 MHz BW

10 µF 0.1 µF Cyb Cyd CycCya a-d Figure 23 — Test circuit; output voltage ripple

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 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 µF in series with 0.3 Ω. 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 250ms. Once the module has been disabled for at least 250ms, 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 Pin Function

1 Vin+

2 Enable

3 Vin-

4 Vout-

5 Vout+

Figure 30 — IBC Pin Designations

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 Page 11 of 13 APPLICATIONS NOTE 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 130°C, it is recommended that PCB temperatures be maintained at or below 125°C. For maximum long term reliability, lower PCB temperatures are recommended for continuous operation, however, short periods of operation at 125°C 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 µF in series with 0.3 Ω) 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. Product Input Package Nominal Temperature Output Enable Pin OptionsFamily Voltage Output Voltage Grade Current Logic Length IB 048 E 120 T 32 N = Negative 1 = 0.145 -00 = Open frame P = Positive 2 = 0.210 PART NUMBERING

VI BRICK IBC Module IB048E120T32N1-00 vicorpower.com Rev. 1.4 2/2012 Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and ac- cessory 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 makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. Specifications are subject to change without notice. Vicor’s Standard Terms and Conditions All sales are subject to Vicor’s Standard Terms and Conditions of Sale, which are available on Vicor’s webpage or upon request. Product Warranty In Vicor’s standard terms and conditions of sale, Vicor warrants that its products are free from non-conformity to its Standard Specifications (the “Ex- press Limited Warranty”). This warranty is extended only to the original Buyer for the period expiring two (2) years after the date of shipment and is not transferable. UNLESS OTHERWISE EXPRESSLY STATED IN A WRITTEN SALES AGREEMENT SIGNED BY A DULY AUTHORIZED VICOR SIGNATORY, VICOR DISCLAIMS ALL REPRESENTATIONS, LIABILITIES, AND WARRANTIES OF ANY KIND (WHETHER ARISING BY IMPLICATION OR BY OPERATION OF LAW) WITH RE- SPECT TO THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR REPRESENTATIONS AS TO MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT, OR ANY OTHER MATTER. This warranty does not extend to products subjected to misuse, accident, or improper application, maintenance, or storage. Vicor shall not be liable for collateral or consequential damage. Vicor disclaims any and all liability arising out of the application or use of any product or circuit and assumes no liability for applications assistance or buyer product design. Buyers are responsible for their products and applications using Vicor products and components. Prior to using or distributing any products that include Vicor components, buyers should provide adequate design, testing and operat- ing safeguards. Vicor will repair or replace defective products in accordance with its own best judgment. For service under this warranty, the buyer must contact Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned without prior authorization will be re- turned to the buyer. The buyer will pay all charges incurred in returning the product to the factory. Vicor will pay all reshipment charges if the prod- uct was defective within the terms of this warranty. Life Support Policy VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support de- vices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages. Intellectual Property Notice Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the prod- ucts described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Interested parties should contact Vicor's Intellectual Property Department. The products described on this data sheet are protected by the following U.S. Patents Numbers: 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

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