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Vtm Current Mulitplier Vtm48ef012t130b01 High Efficiency, Sine Amplitude Converter™

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VTM® Current Mulitplier VTM48EF012T130B01 S C NRTL US High Efficiency, Sine Amplitude Converter™ FEATURES • Optimized for VR12.0 • 40 Vdc to 1 Vdc 130 A current multiplier - Operating from standard 48 V or 24 V PRM® regulators • High efficiency (>93.7%) reduces system power consumption • High density (443 A/in3) • “Full Chip” VI Chip® package enables surface mount, low impedance interconnect to system board • Contains built-in protection features against: - Overvoltage - Overtemperature • Provides enable / disable control, internal temperature monitoring • ZVS / ZCS resonant Sine Amplitude Converter topology • Less than 50ºC temperature rise at full load in typical applications DESCRIPTION The VI Chip® current multiplier is a high efficiency (>93.7%) Sine Amplitude Converter™ (SAC) operating from a 26 to 55 Vdc primary bus to deliver an isolated output. The Sine Amplitude Converter offers a low AC impedance beyond the bandwidth of most downstream regulators; therefore capacitance normally at the load can be located at the input to the Sine Amplitude Converter. Since the K factor of the VTM48EF012T130B01 is 1/40, the capacitance value can be reduced by a factor of 1600, resulting in savings of board area, materials and total system cost. The VTM48EF012T130B01 is provided in a VI Chip® package compatible with standard pick-and-place and surface mount assembly processes. The co-molded VI Chip package provides enhanced thermal management due to a large thermal interface area and superior thermal conductivity. The high conversion efficiency of the VTM48EF012T130B01 increases overall system efficiency and lowers operating costs compared to conventional approaches. The VTM48EF012T130B01 enables the utilization of Factorized Power Architecture™ which provides efficiency and size benefits by lowering conversion and distribution losses and promoting high density point of load conversion. TYPICAL APPLICATIONS • High End Computing Systems • Automated Test Equipment • High Density Power Supplies • Communications Systems VIN = 26 to 55 V IOUT = 130 A (NOM) VOUT = 0.7 to 1.4 V (NO LOAD) K = 1/40 PART NUMBER DESCRIPTION VTM48EF012T130B01 -40°C to 125°C TJ TYPICAL APPLICATION Voltage Control Feedback Enable/ Disable Voltage Reference PC PR +IN TM +OUT PC -IN IF RE +OUT1 +OUT2 +IN PRMTM Regulator 38 to 55 Vdc Input VTM48EF012T130B01 Load -IN -OUT SG VC VC Current Sense -OUT1 -OUT2 PC +OUT1 +OUT2 +IN VTM48EF012T130B01 Constant Vc -IN VC VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 1 of 17 07/2015 800 927.9474 -OUT1 -OUT2 VTM48EF012T130B01 1.0 ABSOLUTE MAXIMUM VOLTAGE RATINGS The absolute maximum ratings below are stress ratings only. Operation at or beyond these maximum ratings can cause permanent MIN MAX UNIT MIN MAX UNIT damage to the device. + IN to - IN . . . . . . . . . . . . . . . . . . . . . . . . . . . PC to - IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . TM to -IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . VC to - IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.0 -0.3 -0.3 -0.3 60 20 7 20 VDC VDC VDC VDC IM to - IN......................................................... + IN / - IN to + OUT / - OUT (hipot)................ + IN / - IN to + OUT / - OUT (working)........... + OUT to - OUT............................................... 0 3.15 1500 60 5.5 -1.0 VDC VDC VDC VDC 2.0 ELECTRICAL CHARACTERISTICS Specifications apply over all line and load conditions unless otherwise noted; Boldface specifications apply over the temperature range of -40°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25ºC unless otherwise noted. ATTRIBUTE Input voltage range VIN slew rate VIN UV turn off SYMBOL VIN VIN_UV PNL Inrush current peak IINRP Output current (average) Output current (peak) Output power (average) IIN_DC K VOUT IOUT_AVG IOUT_PK POUT_AVG Efficiency (ambient) hAMB Efficiency (hot) Efficiency (over load range) Output resistance (cold) Output resistance (ambient) Output resistance (hot) Switching frequency Output ripple frequency hHOT h20% ROUT_COLD ROUT_AMB ROUT_HOT FSW FSW_RP Output voltage ripple VOUT_PP Output inductance (parasitic) LOUT_PAR Output capacitance (internal) COUT_INT Output capacitance (external) COUT PROTECTION Overvoltage lockout Overvoltage lockout response time constant Output overcurrent trip Short circuit protection trip current Output overcurrent response time constant Short circuit protection response time Thermal shutdown setpoint Reverse inrush current protection MIN TYP 26 0 dVIN /dt No Load power dissipation DC input current Transfer ratio Output voltage CONDITIONS / NOTES No external VC applied VC applied Module latched shutdown, No external VC applied, IOUT = 130A VIN = 40 V VIN = 26 V to 55 V VIN = 40 V, TC = 25ºC VIN = 26 V to 55 V, TC = 25ºC VC enable, VIN = 40 V, COUT = 64400 µF, RLOAD = 7.1 mΩ K = VOUT / VIN, IOUT = 0 A VOUT = VIN • K - IOUT • ROUT, Section 11 30°C < Tc < 100°C, Iout_max = - (2/7) * Tc + 159 TC = 30ºC TPEAK < 10 ms, IOUT_AVG ≤ 130 A IOUT_AVG ≤ 130 A VIN = 40 V, IOUT = 130 A VIN = 26 V to 55 V, IOUT = 130 A VIN = 40 V, IOUT = 65 A VIN = 40 V, IOUT = 150 A VIN = 40 V, TC = 100°C, IOUT = 130 A 26 A < IOUT < 130 A TC = -40°C, IOUT = 130 A TC = 25°C, IOUT = 130 A TC = 100°C, IOUT = 130 A 18 1.3 1.9 7 Module latched shutdown TOVLO Effective internal RC filter IOCP ISCP V/µs 26 V 3.4 5 2.6 3.5 W 11 A 4 A V/V V 130 150 195 178 89.4 83.5 92.0 87 88.0 82.4 0.31 0.4 0.42 1.14 2.28 55.1 VDC A A W 90.6 % 93.7 88.5 90.4 0.42 0.55 0.60 1.20 2.40 0.65 0.70 0.79 1.26 2.52 % % mΩ mΩ mΩ MHz MHz 200 500 mV 150 pH 325 µF 58.5 64400 µF 60 V 0.25 N/A N/A UNIT 55 55 1 1/40 COUT = 0 F, IOUT = 130 A, VIN = 40 V, 20 MHz BW Frequency up to 30 MHz, Simulated J-lead model Effective Value at 1 VOUT VTM Standalone Operation. VIN pre-applied, VC enable VIN_OVLO+ MAX N/A µs N/A A A TOCP Effective internal RC filter (Integrative). N/A ms TSCP From detection to cessation of switching (Instantaneous) N/A µs TJ_OTP 125 Reverse Inrush protection is enabled for this product. VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 2 of 17 07/2015 800 927.9474 130 135 ºC VTM48EF012T130B01 3.0 SIGNAL CHARACTERISTICS Specifications apply over all line and load conditions unless otherwise noted; Boldface specifications apply over the temperature range of -40°C < TJ < 125°C (T-Grade); All other specifications are at TJ = 25°C unless otherwise noted. • Used to wake up powertrain circuit. • A minimum of 11.5 V must be applied indefinitely for VIN < 26 V to ensure normal operation. • VC slew rate must be within range for a successful start. SIGNAL TYPE STATE ATTRIBUTE External VC voltage VTM CONTROL : VC • PRM® module VC can be used as valid wake-up signal source. • Internal Resistance used in “Adaptive Loop” compensation • VC voltage may be continuously applied SYMBOL VVC_EXT VC current draw IVC Steady ANALOG INPUT VC internal diode rating VC internal resistor VC internal resistor temperature coefficient VC start up pulse VC slew rate VC inrush current CONDITIONS / NOTES Required for start up, and operation below 26 V. See Section 7. VC = 11.5 V, VIN = 0 V VC = 11.5 V, VIN > 26 V VC = 16.5 V, VIN > 26 V Fault mode. VC > 11.5 V MIN TYP 11.5 16.5 115 0 0 60 100 N/A DVC_INT RVC-INT MAX UNIT TVC_COEFF V 150 mA V kΩ N/A ppm/°C Tpeak <18 ms 20 V Required for proper start up; 0.02 0.25 V/µs VC = 16.5 V, dVC/dt = 0.25 V/µs 1 A VIN pre-applied, PC floating, VC to VOUT turn-on delay TON 500 µs VC enable, CPC = 0 µF Transitional VC = 11.5 V to PC high, VIN = 0 V, VC to PC delay Tvc_pc 75 125 µs dVC/dt = 0.25 V/µs VC = 0 V 3.2 µF Internal VC capacitance CVC_INT PRIMARY CONTROL : PC • The PC pin enables and disables the VTM® module. • Module will shutdown when pulled low with an impedance When held below 2 V, the VTM module will be disabled. less than 400 Ω. • PC pin outputs 5 V during normal operation. PC pin is equal to 2.5 V • In an array of VTM modules, connect PC pin to synchronize start up. during fault mode given VIN > 26 V or VC > 11.5 V. • PC pin cannot sink current and will not disable other modules • After successful start up and under no fault condition, PC can be used as during fault mode. a 5 V regulated voltage source with a 2 mA maximum current. Start Up SIGNAL TYPE ANALOG OUTPUT STATE Steady Start Up Enable DIGITAL INPUT / OUPUT Disable Transitional ATTRIBUTE PC voltage PC source current PC resistance (internal) PC source current PC capacitance (internal) PC resistance (external) PC voltage PC voltage (disable) PC pull down current PC disable time PC fault response time VVC_SP dVC/dt IINR_VC SYMBOL IPC_OP Internal pull down resistor RPC_INT IPC_EN CPC_INT Section 7 RPC_S VPC_EN VPC_DIS IPC_PD TPC_DIS_T From fault to PC = 2 V TFR_PC CURRENT MONITOR : IM • The IM pin voltage varies between 0.1 V and 0.99 V representing the output current within ±25% under all operating line temperature conditions between 50% and 100%. SIGNAL TYPE ANALOG OUTPUT STATE Steady ATTRIBUTE IM Voltage (No Load) IM Voltage (50%) IM Voltage (Full Load) IM Gain IM Resistance (External) CONDITIONS / NOTES VPC SYMBOL VIM_NL VIM_50% VIM_FL A IM RIM_EXT MIN TYP 4.7 5 50 50 150 100 60 2 2.5 MAX UNIT 5.3 2 400 300 1000 3 2 5.1 5 100 V mA kΩ µA pF kΩ V V mA µs µs • The IM pin provides a DC analog voltage proportional to the output current of the VTM module. CONDITIONS / NOTES TJ = 25ºC, VIN = 40 V, IOUT = 0 A TJ = 25ºC, VIN = 40 V, IOUT = 65 A TJ = 25ºC, VIN = 40 V, IOUT = 130 A TJ = 25ºC, VIN = 40 V, IOUT > 65 A MIN TYP MAX UNIT 0.1 0.15 0.48 0.99 7.8 0.3 V V V mV/A MΩ 2.5 VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 3 of 17 07/2015 800 927.9474 VTM48EF012T130B01 TEMPERATURE MONITOR : TM • The TM pin monitors the internal temperature of the VTM® controller IC • The TM pin has a room temperature setpoint of 3 V within an accuracy of ±5°C. and approximate gain of 10 mV/°C. • Can be used as a "Power Good" flag to verify that • Output drives Temperature Shutdown comparator the VTM module is operating. SIGNAL TYPE STATE ANALOG OUTPUT ATTRIBUTE TM voltage TM source current TM gain Steady Disable DIGITAL OUTPUT (FAULT FLAG) Transitional SYMBOL VTM_AMB ITM ATM TM voltage ripple VTM_PP TM voltage TM resistance (internal) TM capacitance (external) TM fault response time VTM_DIS RTM_INT CTM_EXT TFR_TM CONDITIONS / NOTES TJ controller = 27°C MIN TYP MAX UNIT 2.95 3.00 3.05 100 V µA mV/°C 200 mV 50 50 V kΩ pF µs 10 CTM = 0 F, VIN = 40 V, IOUT = 130 A 120 Internal pull down resistor 25 From fault to TM = 1.5 V 0 40 10 4.0 TIMING DIAGRAM ISEC 6 7 ISEC ISEC 1 2 3 VC 4 8 d 5 b VVC-EXT a VOVLO VPRI NL ≥ 26 V c e f VSEC TM VTM-AMB PC g 5V 3V a: VC slew rate (dVC/dt) b: Minimum VC pulse rate c: TOVLO_PIN d: TOCP_SEC e: Secondary turn on delay (TON) f: PC disable time (TPC_DIS_T) g: VC to PC delay (TVC_PC) 1. Initiated VC pulse 2. Controller start 3. VPRI ramp up 4. VPRI = VOVLO 5. VPRI ramp down no VC pulse 6. Overcurrent, Secondary 7. Start up on short circuit 8. PC driven low Notes: – Timing and voltage is not to scale – Error pulse width is load dependent VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 4 of 17 07/2015 800 927.9474 VTM48EF012T130B01 5.0 APPLICATION CHARACTERISTICS The following values, typical of an application environment, are collected at TC = 25ºC unless otherwise noted. See associated figures for general trend data. ATTRIBUTE SYMBOL No load power dissipation Efficiency (ambient) Efficiency (hot) Output resistance (cold) Output resistance (ambient) Output resistance (hot) PNL hAMB hHOT ROUT_COLD ROUT_AMB ROUT_HOT Output voltage ripple VOUT_PP VOUT transient (positive) VOUT_TRAN+ VOUT transient (negative) VOUT_TRAN- CONDITIONS / NOTES TYP UNIT VIN = 40 V, PC enabled VIN = 40 V, IOUT = 130 A VIN = 40 V, IOUT = 130 A, TC = 100ºC VIN = 40 V, IOUT = 130 A, TC = -40ºC VIN = 40 V, IOUT = 130 A VIN = 40 V, IOUT = 130 A, TC = 100ºC COUT = 0 F, IOUT = 130 A, VIN = 40 V, 20 MHz BW, Section 12 IOUT_STEP = 0 A TO 130A, VIN = 40 V, ISLEW = 12 A /us IOUT_STEP = 130 A to 0 A, VIN = 40 V ISLEW = 26 A /us 1.9 90.6 88.9 0.54 0.62 0.75 97 W % % mΩ mΩ mΩ 145 Full Load Efficiency (%) 3 2 92 90 88 86 84 82 80 1 26 29 32 35 38 41 43 46 49 52 -40 55 -20 0 -40 °C TCASE: 25 °C VIN : 100 °C 84 80 PD 76 72 45 60 75 90 105 26 V 26 V 42 V 55 V 100 55 V 120 135 48 44 40 36 32 28 24 20 16 12 8 4 0 η 88 84 80 PD 76 72 150 0 15 30 45 Load Current (A) VIN: 42 V 92 Efficiency (%) Efficiency (%) η 30 80 96 Power Dissipation (W) 48 44 40 36 32 28 24 20 16 12 8 4 0 92 15 60 Efficiency & Power Dissipation 25 °C Case Efficiency & Power Dissipation -40 °C Case 96 0 40 Figure 2 — Full load efficiency vs. temperature Figure 1 — No load power dissipation vs. VIN 88 20 Case Temperature (°C) Input Voltage (V) 60 75 90 105 120 135 Power Dissipation (W) Power Dissipation (W) 4 mV Full Load Efficiency vs. TCASE 94 5 mV 445 No Load Power Dissipation vs. Line Voltage 6 mV 150 Load Current (A) 26 V 42 V Figure 3 — Efficiency and power dissipation at –40°C 55 V VIN: 26 V 42 V 55 V 26 V 42 V Figure 4 — Efficiency and power dissipation at 25°C VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 5 of 17 07/2015 800 927.9474 55 V VTM48EF012T130B01 Efficiency & Power Dissipation 100 °C Case η 84 80 PD 76 72 0 13 26 39 52 65 78 91 104 117 0.80 0.75 0.70 ROUT (mΩ) Efficiency (%) 92 88 ROUT vs. TCASE at VIN = 42 V 48 44 40 36 32 28 24 20 16 12 8 4 0 Power Dissipation (W) 96 0.65 0.60 0.55 0.50 0.45 0.40 -40 130 -20 0 42 V 55 V 26 V 42 V 55 V I OUT : Output Voltage Ripple vs. Load Output Current (A) VRIPPLE (mV PK-PK) 80 60 40 20 0 26 39 52 65 78 91 104 117 130 220 200 180 160 140 120 100 80 60 40 20 0 26 V 100 40 V 130 A 65 A Limited by Power Limited by Power < 10 ms, 195A A Maximum Current Region < 10 ms, 195 Maximum Current T , 150 A Maximum Current Region < 30°C VIN • K after a successful power up the energy will be transferred from secondary to primary. The input to output ratio of the VTM module will be maintained. The VTM module will continue to operate in reverse as long as the input and output voltages are within the specified range. The VTM48EF012T130B01 has not been qualified for continuous reverse operation. Current Multiplier TM VC PC IM R R VTM VIN A VOUT B ® +In +Out -In -Out CD E + _ F G H RO_1 VC ZIN_EQ2 + – VTM®2 ZOUT_EQ2 VIN RO_2 DC Supply Load VIN ZIN_EQn VTM®n ZOUT_EQn VOUT RO_n VOUT Supply Figure 20 — VTM current multiplier array TM 15.0 FUSE SELECTION In order to provide flexibility in configuring power systems VI Chip® products are not internally fused. Input line fusing of VI Chip products is recommended at system level to provide thermal protection in case of catastrophic failure. The fuse shall be selected by closely matching system requirements with the following characteristics: • Current rating (usually greater than maximum current of VTM module) • Maximum voltage rating (usually greater than the maximum possible input voltage) • Ambient temperature • Nominal melting I2t PC A: VOUT supply > 0 V B: VC to -IN > 11.5 V controller wakes-up, PC & TM pulled high, reverse inrush protection blocks VOUT supplying VIN C: VIN supply ramps up D: VIN > VOUT /K, powertrain starts in normal mode E: VIN supply ramps down F: VIN > VOUT /K, powertrain transfers reverse energy G: VOUT ramps down, VIN follows H: VC turns off Figure 21 — Reverse inrush protection VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 14 of 17 07/2015 800 927.9474 Supply VTM48EF012T130B01 17.0 LAYOUT CONSIDERATIONS The VTM48EF012T130B01 requires equal current density along the output J-leads to achieve rated efficiency and output power level. The negative output J-leads are not connected internally and must be connected on the board as close to the VTM® current multiplier as possible. The layout must also prevent the high output current of the VTM48EF012T130B01 from interfering with the input-referenced signals. To achieve these requirements, the following layout guidelines are recommended: • The total current path length from any point on the V+OUT J-leads to the corresponding point on the V-OUT J-leads should be equal (see Figure 22) . Figure 22 — Equal current path • Use vias along the negative output J-leads to connect the negative output to a common power plane. • Use sufficient copper weight and number of layers to carry the output current to the load or to the output connectors. • Be sure to include enough vias along both the positive and negative J leads to distribute the current among the layers of the PCB. • Do not run input-referenced signal traces (VC, PC, TM and IM) between the layers of the secondary outputs. • Run the input-referenced signal traces (VC, PC, TM and IM) such that V-IN shields the signals. See AN:005 FPA Printed Circuit Board Layout Guidelines for more details. Figure 23 — Symmetric layout Equalizing the current paths is most easily accomplished by centering the VTM module output J-leads between the output connections of the PCB and by designing the board such that the layout is symmetric from both sides of the output and from the front and back ends of the output as shown in Figures 23 and 24. Figure 24 — Symmetric layout VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 15 of 17 07/2015 800 927.9474 VTM48EF012T130B01 17.1 MECHANICAL DRAWING NOTES: mm 1. DIMENSIONS ARE inch . 2. UNLESS OTHERWISE SPECIFIED, TOLERANCES ARE: .X / [.XX] = +/-0.25 / [.01]; .XX / [.XXX] = +/-0.13 / [.005] 3. PRODUCT MARKING ON TOP SURFACE DXF and PDF files are available on vicorpower.com 17.2 RECOMMENDED LAND PATTERN 4 3 2 1 A B C D E F G H J K L M N Bottom View Signal Name +In –In IM TM VC PC +Out –Out NOTES: mm 1. DIMENSIONS ARE inch . 2. UNLESS OTHERWISE SPECIFIED, TOLERANCES ARE: .X / [.XX] = +/-0.25 / [.01]; .XX / [.XXX] = +/-0.13 / [.005] 3. PRODUCT MARKING ON TOP SURFACE DXF and PDF files are available on vicorpower.com Designation M2, M1 M4, M3 N3 N4 N2 N1 A3-L3, A2-L2 A4-L4, A1-L1 Click here to view original mechanical drawing on the Vicor website. VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 16 of 17 07/2015 800 927.9474 VTM48EF012T130B01 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. 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; 7,145,186; 7,166,898; 7,187,263; 7,202,646; 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: [email protected] Technical Support: [email protected] VTM® Current Mulitplier Rev 1.2 vicorpower.com Page 17 of 17 07/2015 800 927.9474