BC048A030T021FP VICOR | Alldatasheet

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(=VOUT x10) Output Power Designator (=POUT /10) Part Numbering Bus Converter Module Input Voltage Designator Package Size Pin Style P = Through hole Size: 1.91 x 1.09 x 0.37 in 48,6 x 27,7 x 9,5 mm

Bus Converter Module BC048A030T021FP vicorpower.com Rev. 1.0 Page 2 of 11 Parameter Values Unit Notes +In to -In -1.0 to 60 Vdc +In to -In 100 Vdc For 100 ms PC to -In -0.3 to 7.0 Vdc +Out to -Out -0.5 to 6.0 Vdc Isolation voltage 2,250 Vdc Input to output Output current 70 A Continuous Peak output current 105.0 A For 1 ms Output power 210 W Continuous Peak output power 315 W For 1 ms Operating temperature -40 to +100 °C T-Grade; baseplate -55 to +100 °C M-Grade ; baseplate Storage temperature -40 to +125 °C T-Grade -65 to +125 °C M-Grade Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature, unless otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate. Absolute Maximum Ratings SPECIFICATIONS Parameter Min Typ Max Unit Notes Input voltage range 38 48 55 Vdc Input dV/dt 1 V/µs Input undervoltage turn-on 37.4 Vdc Input undervoltage turn-off 32.0 Vdc Input overvoltage turn-on 55.1 Vdc Input overvoltage turn-off 59.5 Vdc Input quiescent current 2.6 mA PC low Inrush current overshoot 1.7 A Using test circuit in Figure 15; See Figure 1 Input current 4.8 Adc Input reflected ripple current 182 mA p-p Using test circuit in Figure 15; See Figure 4 No load power dissipation 3.0 4.6 W Internal input capacitance 4 µF Internal input inductance 5 nH Recommended external input capacitance 47 µF 200 nH maximum source inductance; See Figure 15 Input Specifications (Conditions are at 48 Vin, full load, and 25°C ambient unless otherwise specified) Note: Stresses in excess of the maximum ratings can cause permanent damage to the device. Operation of the device is not implied at these or any other conditions in excess of those given in the specification. Exposure to absolute maximum ratings can adversely affect device reliability.

Bus Converter Module BC048A030T021FP vicorpower.com Rev. 1.0 Page 7 of 11 +In / -In – DC Voltage Input Ports The VI BRICK (BCM) input voltage range should not be exceeded. An internal under / over voltage lockout function prevents operation outside of the normal operating input range. The BCM turns on within an input voltage window bounded by the “Input undervoltage turn-on” and “Input overvoltage turn-off” levels, as specified. The BCM 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 BCM 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. PC – Primary Control The Primary Control port is a multifunction node that provides the following functions: Enable / Disable – If the PC port is left floating, the BCM output is enabled. Once this port is pulled lower than 2.4 Vdc with respect to –In, the output is disabled. This action can be realized by employing a relay, opto-coupler, or open collector transistor. Refer to Figures 1-3, 12 and 13 for the typical enable / disable characteristics. This port should not be toggled at a rate higher than 1 Hz. The PC port should also not be driven by or pulled up to an external voltage source. Primary Auxiliary Supply – The PC port can source up to 2.4 mA at 5.0 Vdc. The PC port should never be used to sink current. Alarm – The BCM contains circuitry that monitors output overload, input overvoltage or undervoltage, and internal junction temperatures. In response to an abnormal condition in any of the monitored parameters, the PC port will toggle. Refer to Figure 13 for PC alarm characteristics. TM and RSV – Reserved for factory use. +Out / -Out – DC Voltage Output Ports Two sets of contacts are provided for the +Out port. They must be connected in parallel with low interconnect resistance. Similarly, two sets of contacts are provided for the –Out port. They must be connected in parallel with low interconnect resistance. Within the specified operating range, the average output voltage is defined by the Level 1 DC behavioral model of Figure 16. The current source capability of the BCM is rated in the specifications section of this document. The low output impedance of the BCM reduces or eliminates the need for limited life aluminum electrolytic or tantalum capacitors at the input of POL converters. Total load capacitance at the output of the BCM should not exceed the specified maximum. Owing to the wide bandwidth and low output impedance of the BCM, low frequency bypass capacitance and significant energy storage may be more densely and efficiently provided by adding capacitance at the input of the BCM. PIN / CONTROL FUNCTIONS Figure 14 — VI BRICK BCM pin configuration (viewed from pin side)

Bus Converter Module BC048A030T021FP vicorpower.com Rev. 1.0 Page 8 of 11 Load 2 kΩ D1SW1 Enable/Disable Switch Input reflected ripple measurement point BCM TM RSV PC +IN +OUT -OUT +OUT -OUT-IN Figure 15 — VI BRICK BCM test circuit 7A [a] Fuse 47 µF electrolytic C3 10 µF 10 mΩ Notes: 1. Source inductance should be no more than 200 nH. If source inductance is greater than 200 nH, additional bypass capacitance may be required. 2. C3 should be placed close to the load. 3. R3 may be ESR of C3 or a separate damping resistor. 4. D1 power good indicator will dim when a module fault is detected. [a] See Input Fuse Recommendations section APPLICATION NOTES AND TEST CIRCUIT Parallel Operation The BCM 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 BCM 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 traces to be utilized on the input side if necessary. The use of dedicated power planes is, however, preferable. The BCM power train and control architecture allow bi-directional power transfer, including reverse power processing from the BCM output to its input. Reverse power transfer is enabled if the BCM input is within its operating range and the BCM is otherwise enabled. The BCM’s ability to process power in reverse improves the BCM transient response to an output load dump. Input Impedance Recommendations To take full advantage of the BCM capabilities, the impedance presented to its input terminals must be low from DC to approximately 5 MHz. The source should exhibit low inductance (less than 100 nH) and should have a critically damped response. If the interconnect inductance exceeds 100 nH, the BCM 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 stable operations. Given the wide bandwidth of the BCM, 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 BCM 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 BCM is operated near low or high line as the over/under voltage detection circuitry could be activated. Input Fuse Recommendations VI BRICKs are 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. For agency approvals and fusing conditions, click on the link below: http://www.vicorpower.com/technical_library/technical_documentation/quality_and _certification/safety_approvals/ Application Notes For BCM and VI BRICK application notes on soldering, board layout, and system design please click on the link below: http://www.vicorpower.com/technical_library/application_information/ Applications Assistance Please contact Vicor Applications Engineering for assistance, 1-800-927-9474, or email at apps@vicorpower.com.

Bus Converter Module BC048A030T021FP vicorpower.com Rev. 1.0 3/08 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 application 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 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. 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. 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: 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