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IBC Module Rev 1.1 vicorpower.com Page 1 of 19 09/2016 800 927.9474 4:1 Intermediate Bus Converter Module: Up to 650W Output IBC Module IB0xxQ120T53xx-xx C US ® S NRTLCU S Size: 2.30 x 1.45 x 0.42in 58.4 x 36.8 x 10.6mm Features & Benefits

  • Input: 36 – 60VDC (38 – 55VDC for IB048x)
  • Output: 12.0VDC at 48VIN
  • Output current up to 53A
  • Output power: up to 650W *
  • 2250VDC isolation (1500V DC isolation for IB048x)
  • 97.9% peak efficiency
  • Low profile: 0.42” height above board
  • Industry standard 1/4 Brick pinout
  • Sine Amplitude Converter™ (SAC™)
  • Low noise 1MHz ZVS/ZCS Typical Applications
  • Enterprise networks
  • Optical access networks
  • Storage networks
  • Automated test equipment Product Description 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 477W from 36VIN and up to 650W from 50 to 60VIN, the IBC conforms to an industry standard quarter-brick footprint while supplying power greatly exceeding competitive quarter-bricks. Its leading efficiency enables full load operation at 55°C with only 200LFM airflow. Its small cross section facilitates unimpeded airflow — above and below its thin body — to minimize the temperature rise of downstream components. A baseplate option is available for alternative cooling schemes. * For lower power applications see 300W model IB0Q120T32xx-xx Part Ordering Information Product Function Input Voltage Package Output Voltage (Nom.) x 10 Temperature Grade Output Current Enable Logic Pin Length Options I B 0 x x Q 1 2 0 T 5 3 x x – x x IB = Intermediate Bus Converter 048 = 38 – 55VDC 050 = 36 – 60VDC 054= 36 – 60VDC * * Operating transient to 75VDC Q = Quarter Brick Format 120 = (VOUT nominal @ VIN = 48VDC x 10 (4:1 transfer ratio) T = -40ºC ≤ TOPERATING ≤ +100ºC -40ºC ≤ TSTORAGE ≤ +125ºC N = Negative P = Positive 53 = Max Rated Output Current 1 = 0.145” 2 = 0.210” 3 = 0.180” 00 = Open frame BP = Baseplate

IBC Module Rev 1.1 vicorpower.com Page 2 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Absolute Maximum Ratings The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent damage to the device. Parameter Comments Min Max Unit Input voltage (+IN to –IN) See Input Range Specific Characteristics for details -0.5 75 VDC Input voltage slew rate 5 V / µs EN to –IN -0.5 20 VDC Output voltage (+OUT to –OUT) See OVP setpoint max -0.5 (see note) VDC Output current POUT ≤ 650W 53 A Dielectric withstand Input to output 1min 2250 1500 for IB048x VDC Output to baseplate 1min 707 Temperature Operating junction Hottest semiconductor -40 125 ºCOperating baseplate -40 100 Storage -55 125 Attribute Symbol Conditions / Notes Min Typ Max Unit Input Range Specific Characteristics Part Number IB048Q120T53xx-xx Operating input voltage 38 48 55 VDC Non-operating input surge withstand < 100ms 75 VDC Operating input dV / dt 0.003 5 V / µs Undervoltage protection Turn–on 33 38 VDC Turn–off 31 36 VDC Turn–on / turn–off hysteresis 2 VDC Time constant 7 µs 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 4 µs DC output voltage band No load, over VIN range 9.5 12.0 13.8 VDC Output OVP set point Module will shut down 15.0 16.0 VDC Dielctric withstand Input to output and input to baseplate; 1min 1500 VDC Output to baseplate 707 Insulation resistance Input to output 30 MΩ Electrical Specifications Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated.

IBC Module Rev 1.1 vicorpower.com Page 3 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Electrical Specifications (Cont.) Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated. Attribute Symbol Conditions / Notes Min Typ Max Unit Input Range Specific Characteristics Part Number IB050Q120T53xx-xx Operating input voltage 36 48 60 VDC Non-operating input surge withstand < 100ms 75 VDC Operating input dV / dt 0.003 5 V / µs Undervoltage protection Turn–on 31 36 VDC Turn–off 29 34 VDC Turn–on / turn–off hysteresis 2 VDC Time constant 7 µs Undervoltage blanking time UV blanking time is enabled after start up 50 100 200 µs Overvoltage protection Turn–off 65 69 VDC Turn–on 60 69 VDC Time constant 4 µs DC output voltage band No load, over VIN range 9 12 15 VDC Output OVP set point Module will shut down 16.2 17.2 VDC Dielctric withstand Input to output and input to baseplate; 1min 2250 VDC Output to baseplate 707 Insulation resistance Input to output 30 MΩ

IBC Module Rev 1.1 vicorpower.com Page 4 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Attribute Symbol Conditions / Notes Min Typ Max Unit Input Range Specific Characteristics Part Number IB054Q120T53xx-xx Operating input voltage 36 48 60 VDC Non-operating input surge withstand < 100ms 75 VDC Operating input dV / dt 0.003 5 V / µs Undervoltage protection Turn–on 31 36 VDC Turn–off 29 34 VDC Turn–on / turn–off hysteresis 2 VDC Time constant 7 µs Undervoltage blanking time UV blanking time is enabled after start up 50 100 200 µs Overvoltage protection Turn–off 76 79.5 VDC Turn–on 75 78 VDC Time constant 4 µs DC output voltage band No load, over VIN range 9 12 15 VDC Output OVP set point Module will shut down 19 19.8 VDC Dielctric withstand Input to output and input to baseplate; 1min 2250 VDC Output to baseplate 707 Insulation resistance Input to output 30 MΩ Electrical Specifications (Cont.) Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated.

IBC Module Rev 1.1 vicorpower.com Page 5 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Attribute Symbol Conditions / Notes Min Typ Max Unit Common Input Specifications Turn ON delay Start-up inhibit VIN reaching turn-on voltage to enable function operational, see Figure 7 20 25 30 ms Turn-on delay Enable to 10% VOUT; pre-applied VIN, 0 load capacitance, see Figure 8 50 µs Output voltage rise time From 10% to 90% VOUT, 10% load, 0 load capacitance, see Figure 9 50 µs Restart turn-on delay See page 15 for restart after EN pin disable 250 ms No load power dissipation Enabled 4.0 5.5 W Disabled 0.15 0.20 W Input current Low line, full load 13.5 A Inrush current overshoot Using test circuit in Figure 23, 15% load, high line 13 18.9 A Input reflected ripple current At max power; Using test circuit in Figure 24; see Figure 6 650 mArms Peak short circuit input current 45 A Repetitive short circuit peak current 25 A Internal input capacitance 17.6 µF Internal input inductance 5 nH Recommended external input capacitance 200nH maximum source inductance 47 470 µF Electrical Specifications (Cont.) Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated.

IBC Module Rev 1.1 vicorpower.com Page 6 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Electrical Specifications (Cont.) Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated. Attribute Symbol Conditions / Notes Min Typ Max Unit Common Output Specifications Output power * 0 650 W Output current P ≤ 650W 53 A Output start up load of IOUT max, maximum output capacitance 15 % Effective output resistance 3.9 mΩ Line regulation (K factor) VOUT = K • VIN @ no load 0.245 0.250 0.252 Current share accuracy Full power operation; See Parallel Operation on page 16; up to 3 units 10 % Efficiency 50% load See Figure 1 97.5 97.8 % Full load See Figure 1 97.0 97.3 % Internal output inductance 1.6 nH Internal output capacitance 75 µF Load capacitance 0 3000 µF Output voltage ripple 20MHz bandwidth (Figure 17), using test circuit in Figure 25 60 150 mVp-p Output overload protection threshold Of IOUT max, will not shut down when started into max COUT and 15% load. Auto restart with duty cycle < 10% 105 150 % Overcurrent protection time constant 1.2 ms Short circuit current response time 1.5 µs Switching frequency 1.0 MHz Dynamic response – load Load change: ±25% of IOUT max, Slew rate (dI/dt) = 1A/µs See Figures 12–15 VOUT overshoot / undershoot 100 mV VOUT response time 1 µs Dynamic response – line Line step of 5V in 1µs, within VIN operating range. (CIN = 500µF, CO = 350µF) (Figure 16 illustrates similar converter response when subjected to a more severe line transient.) VOUT overshoot 1.25 V Pre-bias voltage Unit will start up into a pre-bias voltage on the output 0 15 VDC * Does not exceed IPC-9592 derating guidelines. At 70ºC ambient, full power operation may exceed IPC-9592 guidelines, but does not exceed component ratings, does not activate OTP and does not compromise reliability.

IBC Module Rev 1.1 vicorpower.com Page 7 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Attribute Symbol Conditions / Notes Min Typ Max Unit Control & Interface Specifications Enable (negative logic) Referenced to –IN Module enable threshold 0.8 VDC Module enable current VEN = 0.8V 130 200 µA Module disable threshold 2.4 VDC Modeule disable current VEN = 2.4V 10 µA Disable hysteresis 500 mV Enable pin open circuit voltage 2.0 2.5 3.0 VDC EN to –IN resistance Open circuit 35 kΩ 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) VEN = 5V 2 mA EN voltage (operating) 4.7 5 5.3 VDC Electrical Specifications (Cont.) Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated. General Characteristics

  • Conditions: TCASE = 25ºC, 75% rated load and specified input voltage range unless otherwise specified. 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 Overtemperature shut down TJ ; Converter will reset when overtemperature condition is removed 125 130 135 ºC Mechanical Weight Open frame (without baseplate) 1.38 / 39.1 oz / g Baseplate version 2.25 / 63.9 oz / g Length 2.30 / 58.4 in / mm Width 1.45 / 36.8 in / mm Height above customer board Open frame version 0.42 / 10.6 in / mm With baseplate 0.45 / 11.4 in / mm Pin solderability Storage life for normal solderability 1 Years Moisture sensitivity level MSL Not applicable, for wave soldering only N/A Clearance to customer board From lowest component on IBC 0.12 / 3.0 in / mm Altitude, operating Derate operating temp 1°C per 1000 feet above sea level -500 10000 Feet Relative humidity, operating Non condensing 10 90 % RoHS compliance Compatible with RoHS directive 2002/95/EC Agency approvals UL/CSA 60950-1 cURus UL/CSA 60950-1, EN60950-1 cTUVus Low voltage directive (2006/95/EC) CE

IBC Module Rev 1.1 vicorpower.com Page 8 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Electrical Specifications (Cont.) Specifications valid at 48VIN, 100% rated load and 25ºC ambient, unless otherwise indicated. Environmental Qualification

  • IPC-9592A, based on Class II Category 2 the following detail is applicable. Test Description Test Detail Min. Quanity Tested

5.2.3 HALT (Highly Accelerated Life Testing)

6 DOF random vibration test 3

5.2.4 THB (Temperature Humidity Bias) (72hr presoak required) 1000hrs – continuous bias 30

5.2.5 HTOB (High Temperature Operating Bias)

Power cycle – On 42 minutes Off 1 minute, On 1 minute, Off 1 minute, On 1 minute, Off 1 minute, 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 (Temperature Cycling) 700 cycles, 30 minute dwell at each extreme – 20C minimum ramp rate 30

5.2.7 PTC (Power & Temperature Cycling) Reference IPC-9592A 3

5.2.8 – 5.2.13 Shock and Vibration Random Vibration – Operating IEC 60068-2-64 (normal operation vibration) 3 Random Vibration Non-operating (transportation) IEC 60068-2-64 3 Shock Operating – normal operation shock IEC 60068-2-27 3 Free fall – IEC 60068-2-32 3 Drop Test 1 full shipping container (box) 1

5.2.14 Other Environmental Tests

5.2.14.1 Corrosion Resistance – Not required N / A

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 N / A

5.2.14.4 Through Hole solderability – J-STD-002 5

ESD Classification Testing HBM testing - JESD22-A114 3 Total Quantity (estimated) 138

IBC Module Rev 1.1 vicorpower.com Page 15 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Pin / Control Functions +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 undervoltage turn-on” and “Input overvoltage 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 100nH, the input should be bypassed with a RC damper to retain low source impedance and stable operation. With an interconnect inductance of 200nH, the RC damper may be 47µF in series with 0.3Ω. 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 0.8VDC with respect to –IN, the output is enabled. The EN port can be driven by a relay, optocoupler, or open collector transistor. Refer to Figure 8 for the typical enable / disable characteristics. This port should not be toggled at a rate higher than 1Hz. 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 1.4VDC with respect to –IN, the output is disabled. This action can be realized by employing a relay, optocoupler, or open collector transistor. This port should not be toggled at a rate higher than 1Hz. The EN port should also not be driven by or pulled up to an external voltage source. The EN port can source up to 2mA at 5VDC. 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 8. +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. Top View Figure 32 — IBC Pin Designations Pin Number Function

1 VIN+

2 Enable

3 VIN-

4 VOUT-

5 VOUT+

IBC Module Rev 1.1 vicorpower.com Page 16 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx 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 transient 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 5MHz. 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., 47µF in series with 0.3Ω) 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 www.vicorpower.com.

IBC Module Rev 1.1 vicorpower.com Page 18 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx Top View 1 0.145 [3.68] 2 0.21 [5.33] 3 0.18 [4.57] Pin Length (X) Designator Length (X) Figure 35 — IBC PCB recommended hole pattern Mechanical Drawings (Cont.) inch (mm)

IBC Module Rev 1.1 vicorpower.com Page 19 of 19 09/2016 800 927.9474 IB0xxQ120T53xx-xx 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 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 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 “Express 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 RESPECT 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 operating 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 returned 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 product 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 devices 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 pending patent applications) relating to the products 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.