28V Wide Input Micro Family Data Sheet DC-DC Converter Module Features * * * * * * * * * * * * * DC input range: 9 - 36 V Isolated output Input surge withstand: 50 V for 100 ms DC output: 3.3 - 48 V Programmable output: 10 to 110% Regulation: 0.2% no load to full load Efficiency: Up to 81% Maximum operating temp: 100 C, full load Power density: up to 60 W per cubic inch Height above board: 0.43 in. (10,9 mm) Parallelable, with N+M fault tolerance Low noise ZCS / ZVS architecture RoHS Compliant (with F or G pin option) Shown actual size: 2.28 x 1.45 x 0.5 in 57,9 x 36,8 x 12,7 mm Absolute Maximum Ratings Product Overview These DC-DC converter modules use advanced power processing, control and packaging technologies to provide the performance, flexibility, reliability and cost effectiveness of a mature power component. High frequency ZCS / ZVS switching provides high power density with low noise and high efficiency. Applications Industrial and process control, distributed power, medical, ATE, communications, defense, aerospace Parameter +In to -In voltage Rating -0.5 to +53 Unit PC to -In voltage -0.5 to +7.0 Vdc PR to -In voltage -0.5 to +7.0 Vdc SC to -Out voltage -0.5 to +1.5 Vdc Isolation voltage in to out 3000 Vrms Test voltage in to base 1500 Vrms Test voltage out to base For details on proper operation please refer to the Design Guide & Applications Manual for Maxi, Mini, Micro Family. 500 Vrms Operating Temperature -55 to +100 C M-Grade Storage Temperature -65 to +125 C M-Grade 500 (260) F (C) Pin soldering temperature Mounting torque Part Numbering e.g. V28C12T100BL2 Output Voltage 3V 3 5 12 15 24 28 36 48 = = = = = = = = 3.3 V 5V 12 V 15 V 24 V 28 V 36 V 48 V Vicor Corp. Vdc Notes V2 8 C Product Grade Temperatures (C) Grade Operating Storage C = - 20 to +100 - 40 to +125 T = - 40 to +100 - 40 to +125 H = - 40 to +100 - 55 to +125 M = - 55 to +100 - 65 to +125 Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 750 (390) F (C) 5 (0.57) in-lbs (N-m) Test voltage <5 sec; wave solder <7 sec; hand solder 6 each B Output Power Vout Pout 3.3 V 50 W 5V 50 W 12 V 100 W 15 V 100 W 24 V 100 W 28 V 100 W 36 V 100 W 48 V 100 W Pin Style Finish Blank: Short Tin/Lead L: Long Tin/Lead S: Short ModuMate Gold N: Long ModuMate Gold F: Short RoHS Gold G: Long RoHS Gold 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Baseplate Blank: Slotted 2: Threaded 3: Through-hole Page 1 of 11 MODULE FAMILY ELECTRICAL CHARACTERISTICS 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. MODULE INPUT SPECIFICATIONS Parameter Operating input voltage Min Typ Max Unit 9 28 36 Vdc 50 Vdc 8.9 Vdc Input surge withstand Undervoltage turn-on 8.8 Undervoltage turn-off 8.5 Overvoltage turn-off / on 36.3 Disabled input current MODULE OUTPUT SPECIFICATIONS Parameter Min Notes <100 ms Vdc 37.8 39.6 Vdc 12 14 mA PC pin low Typ Max Unit Notes 1 % Vout nom. Nominal input; full load; 25 C Low line to high line; full load Output voltage set point Line regulation 0.02 0.20 % Temperature regulation 0.002 0.005 % / C Power sharing accuracy 2 5 % 10 to 100% of full load % Of nominal output voltage. For trimming below 90% of nominal, a minimum load of 10% of maximum rated power may be required. 10 Programming range 110 +Out to -Out -- Absolute Maximum Ratings 3.3 V 5V 8V 12 V 15 V 24 V 28 V 36 V 48 V -0.5 to 4.7 -0.5 to 7.0 -0.5 to 10.9 -0.5 to 16.1 -0.5 to 20.0 -0.5 to 31.7 -0.5 to 36.9 -0.5 to 47.1 -0.5 to 62.9 Over operating temperature range Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Externally applied Note: For important information relative to applications where the converter modules are subject to continuous dynamic loading, contact Vicor applications engineering at 800-927-9474. Thermal Resistance and Capacity Parameter Baseplate to sink; flat, greased surface Min Typ 0.24 Max Unit C/Watt Baseplate to sink; thermal pad (P/N 20265) 0.21 Baseplate to ambient 10.9 C/Watt Baseplate to ambient; 1000 LFM 2.8 C/Watt Thermal capacity 48 Watt-sec/C Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 C/Watt 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 2 of 11 MODULE FAMILY ELECTRICAL CHARACTERISTICS (CONT.) MODULE CONTROL SPECIFICATIONS Parameter Min Typ Max Unit Notes PC bias voltage current limit 5.50 1.5 5.75 2.1 6.00 3.0 Vdc mA PC current = 1.0 mA PC voltage = 5.5 V PC module disable 2.3 2.6 2.9 Vdc Switch must be able to sink 4 mA. See Fig. 2 4 7 ms 0.5 Vavg UV, OV, OT, module fault. See Figs. 3 and 5 See Fig. 3, converter off or fault mode PRIMARY SIDE (PC = Primary Control; PR = Parallel) PC module enable delay PC module alarm PC resistance 0.9 1.0 1.1 M PR emitter amplitude 5.7 5.9 6.1 Volts PR emitter current 150 PR receiver impedance 375 500 625 PR receiver threshold 2.4 2.5 2.6 Volts Minimum pulse width: 20 ns 12 modules Without PR buffer amplifier Vdc mA PR drive capability PR load >30 , < 30 pF 25 C SECONDARY SIDE (SC = Secondary Control) SC bandgap voltage 1.21 1.23 1.25 SC resistance 990 1000 1010 SC capacitance SC module alarm MODULE GENERAL SPECIFICATIONS Referenced to -Sense 0.033 F 0 Vdc With open trim; referenced to -Sense. See Fig. 7 Unit Notes Parameter Min Isolation test voltage (in to out)* 3000 Vrms Complies with reinforced insulation requirements Isolation test voltage (in to base)* 1500 Vrms Complies with basic insulation requirements Isolation test voltage (out to base)* 500 Vrms Complies with operational insulation requirements Isolation resistance Typ Max 10 M Weight (E, C, T grade) 1.9 (52.8) 2.1 (59.3) 2.3 (65.8) ounces (grams) Weight (H, M grade) 2.1 (58.7) 2.3 (65.2) 2.5 (71.7) ounces (grams) Temperature limiting 100 115 Agency approvals cURus, cTUVus, CE C in to out, in to baseplate, out to baseplate See Figs. 3 and 5. Do not operate coverter >100 C. UL60950-1, EN60950-1, CSA60950-1, IEC60950-1. With appropriate fuse in series with the +Input * Isolation test voltage, 1 minute or less. Note: Specifications are subject to change without notice. Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 3 of 11 MODULE SPECIFIC OPERATING SPECIFICATIONS 3.3 Vout, 50 W (e.g. V28C3V3C50BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current 5 Vout, 50 W (e.g. V28C5C50BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current 12 Vout, 100 W (e.g. V28C12C100BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current 15 Vout, 100 W (e.g. V28C15C100BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current Vicor Corp. Min 70.5 4.14 0 15.5 10.6 Min 75.5 6.03 0 10.2 7 Min 78.5 13.7 0 8.49 5.83 Min 79.0 17.1 0 6.8 4.66 Typ 71.4 180 4.3 5.2 0.02 17.5 17.5 Typ 77 127 6.25 2.9 0.02 11.5 11.5 Typ 80.0 200 14.3 6.8 0.02 9.58 9.58 Typ 80.7 200 17.8 7.1 0.02 7.67 7.67 Max 225 4.46 6.2 0.2 15.15 20.6 20.6 Max 159 6.47 3.5 0.2 10 13.5 13.5 Max 250 14.9 7.5 0.2 8.33 11.3 11.3 Max 250 18.5 10 0.2 6.67 9.01 9.01 Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Unit % mV Volts Watts % Amps Amps Amps Output voltage 95% of nominal Output voltage <250 mV Output voltage 95% of nominal Output voltage < 250 mV Output voltage 95% of nominal Output voltage < 250 mV Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage < 250 mV 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 4 of 11 MODULE SPECIFIC OPERATING SPECIFICATIONS (CONT.) 24 Vout, 100 W (e.g. V28C24C100BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current 28 Vout, 100 W (e.g. V28C28C100BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current 36 Vout, 100 W (e.g. V28C36C100BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current 48 Vout, 100 W (e.g. V28C48C100BL) Parameter Efficiency Ripple and noise Output OVP set point Dissipation, standby Load regulation Load current Current limit Short circuit current Vicor Corp. Min 81.3 27.1 0 4.25 2.91 Min 79.0 31.5 0 3.64 2.49 Min 79.5 40.4 0 2.83 1.94 Min 78.2 53.7 0 2.12 1.45 Typ 82.3 180 28.1 5.3 0.02 4.8 4.8 Typ 80.6 160 32.7 7.6 0.02 4.11 4.11 Typ 80.9 180 41.9 5.8 0.02 3.2 3.2 Typ 79.7 125 55.7 7.4 0.02 2.39 2.39 Max 225 29.1 6.2 0.2 4.17 5.63 5.63 Max 200 33.9 8.3 0.2 3.57 5.35 5.35 Max 225 43.4 6.2 0.2 2.78 3.76 3.76 Max 157 57.7 8.0 0.2 2.08 3.31 3.31 Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage <250 mV Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Unit % mV Volts Watts % Amps Amps Amps Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Unit % mV Volts Watts % Amps Amps Amps Output voltage 95% of nominal Output voltage < 250 mV Output voltage 95% of nominal Output voltage <250 mV Notes Nominal input; full load; 25 C p-p; Nominal input; full load; 20 MHz bandwidth 25 C; recycle input voltage or PC to restart (>100 ms off) No load No load to full load; nominal input Output voltage 95% of nominal Output voltage < 250 mV 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 5 of 11 BASIC MODULE OPERATION C2* 4.7nF C4* 4.7nF +IN F1* C1* 0.2F +OUT PC SC PR -IN -OUT C3* 4.7nF C5* 4.7nF For C1 - C5, keep leads and connections short. Figure 1 -- Basic module operation requires fusing, grounding, bypassing capacitors. * See Maxi, Mini, Micro Design Guide. Comprehensive Online Application Information The Design Guide and Applications Manual includes: * Application circuits * Design requirements * EMC considerations * Current sharing in power arrays * Thermal performance information * Recommended soldering methods * Accessory modules - filtering, rectification, front-ends * Mounting options ...and more. CLICK HERE TO VIEW DESIGN GUIDE Also at vicorpower.com * PowerBench online configurators * Over 20 Application Notes * Online calculators - thermal, trimming, hold-up * PDF data sheets for ALL Vicor products Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 6 of 11 PRIMARY CONTROL - PC PIN Module Enable/Disable Module Alarm The module may be disabled by pulling PC to 0 V (2.3 V max) with respect to the -Input. This may be done with an open collector transistor, relay, or optocoupler. Converters may be disabled with a single transistor or relay either directly or via "OR'ing" diodes for 2 or more converters. See Figure 2. The module contains "watchdog" circuitry which monitors input voltage, operating temperature and internal operating parameters. In the event that any of these parameters are outside of their allowable operating range, the module will shut down and PC will go low. PC will periodically go high and the module will check to see if the fault (as an example, Input Undervoltage) has cleared. If the fault has not been cleared, PC will go low again and the cycle will restart. The SC pin will go low in the event of a fault and return to its normal state after the fault has been cleared. See Figures 3 and 5. Primary Auxiliary Supply During normal operation only, the PC Pin can source 5.7 V @ 1.5 mA. In the example shown in Figure 4, PC powers a module enabled LED. +IN +IN PC PC PR PR Disable 1M -IN -IN Disable = PC < 2.3 V Figure 2 -- Module enable/disable. SW1 +OUT Auto Restart 50 2-20 ms typ. f(VIN) SW2 SW3 5.7 Vdc (0-3 mA) SC 1K 6K 1.23 Vdc SW1, 2, & 3 shown in "Fault" position -OUT Figure 3 -- PC/SC module alarm logic. [a] +IN Not applicable for 300 Vdc Input family Fault PC PC "Module Enabled" Input Undervoltage Input Overvoltage [a] Over Temperature Module Faults 40 s typ. 5.7 V 4 k PR SC -IN 2-20 ms typ. Figure 5 --PC/SC module alarm timing. Figure 4 -- LED on-state indicator. +IN Optocoupler 1.23 V +OUT Comparator PC SC 4k -IN Figure 6 --Isolated on-state indicator. Vicor Corp. Alarm PR Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 -OUT 1.00 V Figure 7 -- Secondary side on-state indicator. 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 7 of 11 SECONDARY CONTROL - SC PIN PARALLEL BUS - PR PIN Output Voltage Programming Parallel Operation The output voltage of the converter can be adjusted or programmed via fixed resistors, potentiometers or voltage DACs. See Figure 8. The PR pin supports paralleling for increased power with N+1 (N+M) redundancy. Modules of the same input voltage, output voltage, and power level will current share if all PR pins are suitably interfaced. Compatible interface architectures include the following: +OUT RU Trim Up Error Amp 1 k SC Load RD Trim Down 0.033 F -OUT 1.23 V AC coupled single-wire interface. All PR pins are connected to a single communication bus through 0.001 F (500 V) capacitors. This interface supports current sharing and is fault tolerant except for the communication bus. Up to three converters may be paralleled by this method. See Figure 9. Transformer coupled interface. For paralleling four or more converters a transformer coupled interface is required. See Figure 10. For details on parallel operation please refer to the RD (ohms) = Design Guide & Applications Manual for Maxi, Mini, Micro Family. 1,000 Vout Vnom - Vout RU (ohms) = 1,000 (Vout -1.23) Vnom - 1,000 1.23 (Vout - Vnom) Figure 8 -- Output voltage trim down and trim up circuit. 4.7 nF + +IN 0.2 F 0.001 F Z1* - Trim Down 1. This converter is not a constant power device - it has a constant current limit. Hence, available output power is reduced by the same percentage that output voltage is trimmed down. Do not exceed maximum rated output current. Trim Up 1. The converter is rated for a maximum delivered power. To ensure that maximum rated power is not exceeded, reduce maximum output current by the same percentage increase in output voltage. 4.7 nF 4.7 nF +IN 0.2 F 0.001 F Z1* Parallel Bus Figure 9 -- AC coupled single-wire interface. * See Maxi, Mini, Micro Design Guide. 4.7 nF + +IN 0.2 F T1 Z1* Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 PC Module 1 PR -IN - 4.7 nF 4.7 nF +IN T2 Trim resistor values calculated automatically: Vicor Corp. Module 2 PR -IN 0.2 F On-line calculators for trim resistor values are available on the vicor website at: asp.vicorpower.com/calculators/calculators.asp?calc=1 Resistor values can be calculated for fixed trim up, fixed trim down and for variable trim up or down. PC 4.7 nF 2. The trim up resistor must be connected between the SC and pins. Do not bypass the SC pin directly with a capacitor. 3. Do not trim the converter above maximum trim range (typically +10%) or the output over voltage protection circuitry may be activated. Module 1 PR -IN Low inductance ground plane or bus 2. The trim down resistor must be connected between the SC and pins. Do not bypass the SC pin directly with a capacitor. PC Z1* PC Module 2 PR -IN 4.7 nF Parallel Bus Figure 10 -- Transformer-coupled interface. 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 8 of 11 PARALLEL BUS / VOLTAGE DROP COMPENSATION * The +Out and -Out power buses should be designed to minimize and balance parasitic impedance from each module output to the load. +S R7 21.0 k R1 R2 SC +OUT Module #2 trimmed down 2 % * At the discretion of the power system designer, a subset of all modules within an array may be configured as slaves by connecting SC to -Out. L O A D -OUT Ground Plane -OUT U2 R5 1.00 k TLV431 R6 C1 1.65 k 470 pF R11 36.5 k C2 0.22 F R8 4.02 k Vcc 200 mV U3 LM10 Gnd R Load R10 1.24 k -S See Component Selection section below. * This module is designed for point of load regulation, where remote sensing is not required. Active voltage drop compensator, as shown here, may be used in applications with significant distribution losses. * Do not use output OR'ing diodes with MicroMods. SC R3 2.55 k R9 -Out +OUT Module #3 trimmed down 4 % U1 PS2701 SC C3 R4 + -OUT +Out - SC + Plane - +OUT Module #1 Designated Master Please consult with the Micro Family Isolated Remote Sense Application Note for additional information. Figure 11 -- N+1 module array output connections. Figure 12 -- Voltage drop compensation. PIN STYLES* Designator Description Finish Notes (None) Short Tin/Lead Requires in-board, mounting L Long Tin/Lead On-board mounting for 0.065" boards S Short ModuMate Gold SurfMate or in-board socket mounting N Long ModuMate Gold On-board socket mounting F Short RoHS Gold Select for RoHS compliant in-board solder, socket, or SurfMate mounting G Long RoHS Gold Select for RoHS compliant on-board solder or socket mounting * Pin style designator follows the "B" after the output power and precedes the baseplate designator. Ex. V28C12T100BN2 -- Long ModuMate Pins Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 9 of 11 MECHANICAL DRAWINGS No. 1 2 3 4 5 6 7 Converter Pins Function Label +In + Primary PC Control Parallel PR -In - -Out - Secondary Control +Out SC + Figure 13 -- Module outline ALL MARKINGS THIS SURFACE 0.062 0.010 PCB THICKNESS 1,57 0,25 0.800* INBOARD SOLDER MOUNT ONBOARD SOLDER MOUNT SHORT PIN STYLE 0.094 0.003 2,39 0,08 LONG PIN STYLE 0.094 0.003 2,39 0,08 20,32 0.525* 13,34 0.275* 6,99 0.145* 3,68 PLATED THRU HOLE DIA 0.133 3,38 1 2 3 4 1.734** 44,04 2.000* 50,80 7 R 0.06 (4X) 1,5 (7X) 6 .400* 10,16 1.090** 27,69 PINS STYLES SOLDER:TIN/LEAD PLATED MODUMATE: GOLD PLATED COPPER RoHS: GOLD PLATED COPPER FOR SOLDERING METHODS AND PROCEDURES PLEASE REFER TO THE MAXI, MINI, MICRO DESIGN GUIDE. 5 *DENOTES TOL = 0.003 0,08 ALUMINUM BASEPLATE 0.43 10,9 Unless otherwise specified, dimensions are in inches mm 0.53 13,5 Decimals 0.XX **PCB WINDOW Tol. 0.25 0.XXX Angles 0.01 1 0.005 0.127 Figure 14 -- PCB mounting specifications Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 Page 10 of 11 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 Foreign Patents 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. 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 Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 28V Micro Family Set your site on VICOR at vicorpower.com Rev. 1.5 08/12