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| 45 Features * * * * * * * * * * * 48Vin / 12Vout / 500Watts DC-DC Converter Module Model Number V48A12C500A* DC input range: 36 - 75V Input surge withstand: 100V for 100ms DC output: 12V Programmable output: 10 to 110% Regulation: 0.2% no load to full load Efficiency: 85.7% Maximum operating temperature: 100C at full load Power density: 99W/cubic inch Height above board: 0.43 in. (10,9 mm) Parallelable, with N+M fault tolerance Low noise ZCS/ZVS architecture Typical Applications: telecommunications and distributed power systems Shown actual size: 4.6 x 2.2 x 0.5 in 117 x 56 x 12,7 mm Product Overview This DC-DC converter module uses 2nd Generation power processing, control and packaging technologies to provide the performance, flexibility and cost effectiveness expected of a mature power component. For example, a plated-cavity core transformer couples widely separated primary and secondary windings, resulting in low in-toout parasitic capacitance and noise. High frequency ZCS/ZVS switching, advanced power semiconductor packaging and thermal management provide high power density with low temperature gradients. Extensive use of silicon integration results in 1/3 the part count of a 1st Generation converter. Absolute Maximum Ratings Parameter +In to -In voltage +In to -In voltage PC to -In voltage PR to -In voltage +Out to -Out voltage +Sense to -Out voltage -Sense to -Out voltage SC to -Out voltage Isolation voltage (in to out) Isolation voltage (in to base) Isolation voltage (out to base) Storage temperature (C-Grade) Operating temperature (C-Grade) Rating -0.5 to +75.0 100 -0.5 to +7.0 -0.5 to +7.0 -0.5 to +16.0 -0.5 to +16.0 1.0 -0.5 to +1.5 3000 1550 500 -40 to +125 -20 to +100 500 (260) 750 (390) 5 (0.57) Unit Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vdc Vrms Vrms Vrms C C F (C) F (C) in-lbs (N-m) See part numbering chart on this page for other product grades. Notes <100ms * Part Numbering V 48 A 12 C 500 A Input Voltage 24 = 24Vin 48 = 48Vin 300 = 300Vin 375 = 375Vin A = Maxi B = Mini C = Micro Output Voltage Output Power Pin Style Baseplate Baseplate <5 sec; wave solder <7 sec; hand solder 6 each, # 4-40 or M3 Pin soldering temperature Pin soldering temperature Mounting torque Product Grade Temperatures (C) Grade Storage Operating C = - 40 to +125 - 20 to +100 T = - 40 to +125 - 40 to +100 H = - 55 to +125 - 40 to +100 M = - 65 to +125 - 55 to +100 Thermal Resistance and Capacity Parameter Baseplate to sink; flat, greased surface Baseplate to sink; thermal pad (P/N 20263) Baseplate to ambient Baseplate to ambient; 1000 LFM Thermal capacity Min Typ 0.08 0.07 4.9 1.1 165 Max Unit C/Watt C/Watt C/Watt C/Watt Watt-sec/C For pin styles see page 6. Slotted baseplate (style 1) requires no designator. For threaded baseplate add a "2" to the end of the part number. For thru-hole, add a "3". See page 7 for dimensions. Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 Page 1 of 8 Set your site on VICOR at www.vicorpower.com 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 OPERATING SPECIFICATIONS Parameter Operating input voltage Input surge withstand Output voltage setpoint Output OVP setpoint Output power Efficiency 84.7 85.7 11.88 13.7 12.00 14.3 Min 36 Typ 48 Max 75 100 12.12 14.9 500 Unit Vdc Vdc Vdc Vdc Watts % <100ms Nominal input; full load; 25C 25C; recycle input voltage to restart ( 1 minute off ) At 100C baseplate temperature Nominal input; 75% of full load; 25C Notes MODULE INPUT SPECIFICATIONS Parameter Undervoltage turn-on Undervoltage turn-off Overvoltage turn-off/on Dissipation, standby 29.4 75.7 Min Typ 34.9 30.5 78.8 6.8 82.5 10.2 Max 35.7 Unit Vdc Vdc Vdc Watts No load Notes MODULE OUTPUT SPECIFICATIONS Parameter Line regulation Load regulation Temperature regulation Ripple and noise, p-p Current limit Short circuit current Power sharing accuracy Programming range 10 42.5 29.1 Min Typ 0.02 0.06 0.002 100 48.0 48.0 2 Max 0.20 0.20 0.005 125 54.3 54.3 5 110 Unit % % % / C mV Amps Amps % % Notes Low line to high line; full load No load to full load; nominal input Over operating temperature range Nominal input, full load; 25C; 20MHz bandwidth Output voltage 95% of nominal Output voltage <250mV 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. 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. MODULE MECHANICAL SPECIFICATIONS Slotted baseplate (style 1) requires no designator. For threaded baseplate add a "2" to the end of the part number. For thru-hole add a "3". For long pin configuration add "L" to the end of the part number. See page 7 for pin dimensions. Baseplate Slotted (Style 1) Pin style Short (Style 1) Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 Page 2 of 8 Set your site on VICOR at www.vicorpower.com ELECTRICAL CHARACTERISTICS, continued MODULE CONTROL SPECIFICATIONS Parameter Min Typ Max Unit Notes PRIMARY SIDE (PC = Primary Control; PR = Parallel) PC bias voltage current limit PC module disable PC module enable delay PC module alarm PR emitter amplitude PR emitter current PR receiver impedance PR receiver threshold PR drive capability SECONDARY SIDE (SC = Secondary Control) SC bandgap voltage SC resistance SC capacitance SC module alarm 1.21 990 1.23 1000 0.033 0 1.25 1010 Vdc ohms F Vdc With open trim; referenced to -Sense. See Fig. 6 Referenced to -Sense 5.7 150 375 2.4 500 2.5 625 2.6 12 5.9 5.50 1.5 2.3 5.75 2.1 2.6 4 6.10 3.0 2.9 7 0.5 6.1 Vdc mA Vdc ms Vavg Volts mA ohms Volts modules 25C Minimum pulse width: 20ns Without PR buffer amplifier UV, OV, OT, module fault. See Figs. 2 and 4 PR load >30 ohms, < 30 pF PC current = 1.0 mA PC voltage = 5.5V Must be able to sink 4 mA. See Fig. 1 MODULE GENERAL SPECIFICATIONS Parameter Remote sense (total drop) Isolation voltage (in to out) Isolation voltage (in to base) Isolation voltage (out to base) Isolation resistance (in to out) Weight Temperature limiting Agency approvals 100 3000 1550 500 10 7.3 (210) 115 8 (227) Min Typ Max 0.5 Unit Vdc Vrms Vrms Vrms megohms ounces (grams) C See Figs. 2 and 4 UL1950, CSA950, EN60950, VDE0805, BS7002, IEC 60950. With a fuse in series with the +Input Notes 0.25V per leg (senses must be closed) Complies with reinforced insulation requirements Complies with basic insulation requirements Complies with operational insulation requirements UL, CSA, TUV, BABT, CE, VDE Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 Page 3 of 8 Set your site on VICOR at www.vicorpower.com CONTROL FUNCTIONS - PC PIN Module Enable/Disable The module may be disabled by pulling PC below 2.3V with respect to the -Input. This may be done with an open collector transistor, relay, or optocoupler. Multiple converters may be disabled with a single transistor or relay either directly or via "OR'ing" diodes. See Figure 1. Primary Auxiliary Supply At 5.7V, PC can source up to 1.5mA. In the example shown in Figure 3, PC powers a module enabled LED. Module Alarm 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, overtemperature) 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 2 and 4. +In PC +In SW1 Auto Restart 2-20ms typ. f (VIN) Input Undervoltage Input Overvoltage Overtemperature Module Faults 50 SW2 SW3 1K +Out +S SC -S PC SW1, 2, & 3 shown in "Fault" position Disable PR -In PR -In 5.7Vdc (0-3mA) 1.23 Vdc 6K -Out Disable = PC <2.3V Figure 1--Module enable/disable. Figure 2--PC/SC module alarm logic. +In Fault PC 40s typ. 5.7V PC "Module Enabled" 4k PR -In SC 1.23V 2-20ms typ. Figure 3--LED on-state indicator. Figure 4--PC/SC module alarm timing. Optocoupler +In PC 4k PR -In +Out +S SC -S -Out 1.00V Alarm Figure 5--Isolated on-state indicator. Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 Figure 6--Secondary side on-state indicator. V48A12C500A DC-DC Converter Rev. 5.3 Page 4 of 8 Set your site on VICOR at www.vicorpower.com CONTROL FUNCTIONS - SC PIN Output Voltage Programming The output voltage of the converter can be adjusted or programmed via fixed resistors, potentiometers or voltage DACs. See Figures 7 and 8. +Out +S Error Amp 1k 0.033F SC -S -Out 1.23V 1.23V RD Trim Down Load Error Amp 1k 0.033F +Out +S SC -S -Out RU Trim Up Load RD (ohms) = 1,000 Vout Vnom - Vout RU (ohms) = 1,000 (Vout-1.23) Vnom 1.23 (Vout-Vnom) -1,000 Figure 7--Output voltage trim down circuit. 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. 2. The trim down resistor must be connected to the -Sense pin. Figure 8--Output voltage trim up circuit. 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. 2. The trim up resistor must be connected to the +Sense pin. 3. Do not trim the converter above maximum trim range (typically +10%) or the output over voltage protection circuitry may be activated. Trim resistor values calculated automatically: On-line calculators for trim resistor values are available on the vicor website at: vicorpower.com/tools.html. Resistor values can be calculated for fixed trim up, fixed trim down and for variable trim up or down cases for both 1st and 2nd Generation DC-DC converters. In addition to trimming information, the web site and the Applications Manual also include design tips, applications circuits, EMC suggestions, thermal design guidelines and PDF data sheets for all available Vicor products. Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 Page 5 of 8 Set your site on VICOR at www.vicorpower.com CONTROL FUNCTIONS - PR PIN Parallel Operation The PR pin supports paralleling for increased power with N+1 (N+M) redundancy and phased array capability. 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: DC coupled single-wire interface. All PR pins are directly connected to one another. This interface supports current sharing but is not fault tolerant. Minus In pins must be tied to the same electric potential. See Figure 9. AC coupled single-wire interface. All PR pins are connected to a single communication bus through 0.001F (500V) capacitors. This interface supports current sharing and is fault tolerant except for the communication bus. See Figure 10. +In PC +In Module 1 PR -In 0.001F PC Module 1 PR -In +In PC PR -In +In Module 2 (up to 12) 0.001F PC PR -In Module 2 (up to 12) Ground plane Ground plane Figure 9--DC coupled single-wire interface. +Out Figure 10--AC coupled single-wire interface. Module 1 +S SC -S -Out +S -S +S * The +Out and -Out power buses should be designed to minimize and balance parasitic impedance from each module output to the load. * The +Sense pins should be tied to the same point on the +Out power bus; the -Sense pins should be tied to the same point on the -Out power bus. * At the discretion of the power system designer, a subset of all modules within an array may be configured as slaves by shorting SC to -S. * OR'ing diodes may be inserted in series with the +Out pins of each module to provide module output fault tolerance. +Out +S SC -S -Out +Sense from other modules in the array +Out Module 2 +S SC -S -Out +S Load -S -S +Out +S SC -S -Out Module N+1 Figure 11--N+1 module array output connections. PIN STYLES * Designator (None) L S N Description Short solder Long solder Short ModuMate Long ModuMate Notes Requires in-board, mounting Figure 12--OR'ing diodes connections. On-board mounting for 0.65" boards SurfMate or in-board socket mounting On-board socket mounting * Pin style designator follows the "A" after the output power and precedes the baseplate designator. Ex. V375A24C600AN -- Long ModuMate Pins Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 Page 6 of 8 Set your site on VICOR at www.vicorpower.com MECHANICAL DRAWINGS MODULE OUTLINE 0.50 0.02 12,7 0,5 No. 1 2 3 4 5 6 7 8 9 Converter Pins Function Label +In Primary Control Parallel -In -Out -Sense Secondary Control +Sense +Out + PC PR - - -S SC +S + 0.3000.015 7,620,38 1 2 3 4 0.38 (2X) 9,6 0.3000.015 7,620,38 0.23 (REF) 5,8 2.20 55,9 1.74 44,2 0.01 4-40 UNC-2B 0.12* 0.20** Thru (4X)*** 3,1 5,08 (Style 2 and 3 only) 0.50 12,7 2.00 50,8 0.10 2,5 0.10 X 45 2,5 CHAMFER (ALL MARKINGS THIS SURFACE) ALUMINUM BASEPLATE 4.200 106,68 4.60 116,8 1.80 45,7 FULL R (6X) 3.60 91,4 0.13 (6X) 3,3 PINS: TIN/LEAD HOT SOLDER DIP 9 8 7 6 5 Use a 4-40 Screw (6x) Torque to: 5 in-lbs 0.57 N-m 0.400 10,16 Slotted (Style 1) or Threaded (Style 2) 4-40 UNC-2B (6X) 0.700 17,78 1.000 25,40 1.400 35,56 0.180 DIA,(2X) 4,57 0.080 DIA,(7X) 2,03 0.43 10,9 R 0.06 (3X) 1,5 0.54 (9X) Pin Style 1&S 13,7 (Short Pin) 0.62 (9X) Pin Style 2&N 15,7 (Long Pin) 2.20 55,9 (REF) or Thru Hole (Style 3) #30 Drill Thru (6X) (0.1285) * Style 1 baseplate only ** Style 2 & 3 baseplates *** Reserved for Vicor accessories Not for mounting ALL MARKINGS THIS SURFACE PCB MOUNTING SPECIFICATIONS INBOARD SOLDER MOUNT PIN STYLE 1&S PCB THICKNESS 0.062 0.010 1,57 0,25 PLATED THRU HOLE DIA 0.178 4,52 (7X) (2X) 0.094 0.003 2,39 0,08 0.194 0.003 4,93 0,08 ONBOARD SOLDER MOUNT PIN STYLE 2&N 0.094 0.003 2,39 0,08 0.194 0.003 4,93 0,08 R 0.06 (4X) 1,5 1.790 45,47 1 2 3 4 ALUMINUM BASEPLATE PINS STYLES STYLE 1 & 2: TIN/LEAD HOT SOLDER DIPPED STYLE S & N: GOLD PLATED COPPER 4.200* 106,68 3.844 97,64 9 8 7 6 5 0.400* 10,16 0.700* 17,78 1.000* 25,40 1.400* 35,56 Unless otherwise specified, dimensions are in inches mm 0.43 10,9 * DENOTES 0.003 TOL = 0,08 0.53 13,5 Decimals 0.XX 0.XXX Tol. 0.01 0,25 0.005 0,127 Angles 1 0.195 4,95 Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 Page 7 of 8 Set your site on VICOR at www.vicorpower.com Vicor's comprehensive line of power solutions includes modular, high density DC-DC converters and accessory components, configurable power supplies, and custom power systems. Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. No license is granted by implication or otherwise under any patent or patent rights of Vicor. 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. 45 Component Solutions for Your Power System Vicor Corporation 25 Frontage Road Andover, MA, USA 01810 Tel: 800-735-6200 Fax: 978-475-6715 Email Vicor Express: vicorexp@vicr.com Technical Support: apps@vicr.com Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715 V48A12C500A DC-DC Converter Rev. 5.3 08/03 Set your site on VICOR at www.vicorpower.com |
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