vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 375v maxi family rev. 6.1 page 1 of 8 set your site on vicor at www.vicorpower.com features dc input range: 250 - 425v input surge withstand: 500v for 100ms dc output: 2v - 48v programmable output: 10 to 110% regulation: 0.2% no load to full load efficiency: up to 90% maximum operating temperature: 100? at full load power density: up to 120w/cubic inch height above board: 0.43 in. (10,9 mm) parallelable, with n+m fault tolerance low noise zcs/zvs architecture typical applications: distributed power; off-line systems using power pfc front-ends; electric vehicles 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-to- out 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. part numbering for pin styles see page 6. slotted baseplate (style 1) requires no designator. for threaded baseplate add a ??to the end of the part number. for thru-hole, add a ?? see page 7 for dimensions. shown actual size: 4.6 x 2.2 x 0.5 in 117 x 56 x 12,7 mm 4 5 absolute maximum ratings parameter min typ max unit baseplate to sink; flat, greased surface 0.08 ?/watt baseplate to sink; thermal pad (p/n 20263) 0.07 ?/watt baseplate to ambient 4.9 ?/watt baseplate to ambient; 1000 lfm 1.1 ?/watt thermal capacity 165 watt-sec/? thermal resistance and capacity data sheet 375v input maxi family * dc-dc converter module parameter rating unit notes +in to ?n voltage -0.5 to +425 vdc +in to ?n voltage 500 vdc <100ms pc to ?n voltage -0.5 to +7.0 vdc pr to ?n voltage -0.5 to +7.0 vdc sc to ?ut voltage -0.5 to +1.5 vdc ?ense to ?ut voltage 1.0 vdc isolation voltage (in to out) 3000 vrms isolation voltage (in to base) 1550 vrms isolation voltage (out to base) 500 vrms storage temperature -40 to +125 ? c-grade operating temperature -20 to +100 ? c-grade pin soldering temperature 500 (260) ? (?) <5 sec; wave solder pin soldering temperature 750 (390) ? (?) <7 sec; hand solder mounting torque 5 (0.57) in-lbs (n-m) 6 each, # 4-40 or m3 * the modules described here are the highest power for each output voltage. consult factory for availability of lower power units. v 375 a 5 c 400 a input voltage 24 = 24vin 48 = 48vin 300 = 300vin 375 = 375vin a = maxi b = mini c = micro output voltage product grade temperatures (?) 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 pin style base- plate output power
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 375v maxi family rev. 6.1 page 2 of 8 set your site on vicor at www.vicorpower.com parameter min typ max unit notes operating input voltage 250 375 425 vdc input surge withstand 500 vdc <100ms output voltage setpoint 1 % vout nom nominal input; full load; 25? parameter min typ max unit notes line regulation ?.02 ?.2 % low line to high line; full load temperature regulation ?.002 ?.005 % / ? over operating temperature range power sharing accuracy 2 5 % 10 to 100% of full load programming range 10 110 % of nominal output voltage. for trimming below 90% of nominal, a minimum load of 10% of maximum rated power may be required. parameter min typ max unit notes undervoltage turn-on 242.5 247.5 vdc undervoltage turn-off 204.7 212.2 vdc overvoltage turn-off/on 429.2 446.3 467.5 vdc module operating specifications module input specifications module output specifications electrical characteristics electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperat ure, unless otherwise specified. all temperatures refer to the operating temperature at the center of the baseplate. module output voltage related specifications parameter 1.8v 1 2v 2.5v 2 3.3v 5v 12v 15v 24v 28v 48v unit notes efficiency (typ.) 73 74.5 76 80 83.5 85.7 87 88 89 90 % nominal input; 80% load; 25? ripple and noise, p-p (typ.) 70 70 70 80 102 120 90 105 160 50 mv nominal input; full load; 25?; 20mhz bw output power (max.) 144 160 200 264 400 600 600 600 600 600 watts at 100? baseplate temperature output ovp setpoint (nom.) 2.8 2.8 4.3 4.3 6.3 14.3 17.8 28.1 32.7 55.2 volts 25?; recycle input voltage to restart ( 1 minute off ) dissipation, standby (typ.) 5.0 5.0 4.9 4.9 5.0 8.7 8.0 8.5 8.0 6.0 watts no load; nominal input load regulation (max.) 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 ? vout no load to full load; nominal input current limit (typ.) 115 115 115 115 115 115 115 115 115 115 % iout output voltage 95% of nominal short circuit current (typ.) 115 115 115 115 115 115 115 115 115 115 % iout output voltage <250mv 1 nominal 2v output trimmed to 1.8v by adding external 9,000 ohm resistor from the sc pin to - s pin. (see fig. 7) 2 nominal 3.3v output trimmed to 2.5v by adding external 3,125 ohm resistor from the sc pin to - s pin. (see fig. 7) 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.
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 375v maxi family rev. 6.1 page 3 of 8 set your site on vicor at www.vicorpower.com parameter min typ max unit notes primary side (pc = primary control; pr = parallel) pc bias voltage 5.50 5.75 6.00 vdc pc current = 1.0 ma current limit 1.5 2.1 3.0 ma pc voltage = 5.5v pc module disable 2.3 2.6 2.9 vdc must be able to sink 4 ma. see fig. 1 pc module enable delay 4 7 ms pc module alarm 0.5 vavg uv, ov, ot, module fault. see figs. 2 and 4 pr emitter amplitude 5.7 5.9 6.1 volts pr load >30 ohms, < 30 pf pr emitter current 150 ma pr receiver impedance 375 500 625 ohms 25? pr receiver threshold 2.4 2.5 2.6 volts minimum pulse width: 20ns pr drive capability 12 modules without pr buffer amplifier secondary side (sc = secondary control) sc bandgap voltage 1.21 1.23 1.25 vdc referenced to ?ense sc resistance 990 1000 1010 ohms sc capacitance 0.033 ? sc module alarm 0 vdc with open trim; referenced to ?ense. see fig. 6 parameter min typ max unit notes remote sense (total drop) 0.5 vdc 0.25v per leg (senses must be closed) isolation voltage (in to out) 3000 vrms complies with reinforced insulation requirements isolation voltage (in to base) 1550 vrms complies with basic insulation requirements isolation voltage (out to base) 500 vrms complies with operational insulation requirements isolation resistance (in to out) 10 megohms weight 7.3 (210) 8 (227) ounces (grams) temperature limiting 100 115 ? see figs. 2 and 4 agency approvals ul, csa, t?v, babt, ce, vde ul1950, csa950, en60950, vde0805, bs7002, iec 60950. with a fuse in series with the +input module control specifications module general specifications electrical characteristics, continued note: specifications are subject to change without notice. the latest data sheets for individual models are available on the vicor website at www.vicorpower.com.
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 375v maxi family rev. 6.1 page 4 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 ?nput. 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 ?r?ng?diodes. see figure 1. module alarm the module contains ?atchdog?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 pr in disable disable = pc <2.3v figure 1 ?odule enable/disable. figure 3 ?ed on-state indicator. +in pc pr in 4k ? "module enabled" +in pc pr in optocoupler 4k ? alarm 1.00v +out +s sc s out +out +s sc s out +in pc pr in input undervoltage 2-20ms typ. f (v in ) auto restart 5.7vdc (0-3ma) 50 ? sw2 sw3 1.23 vdc 6k 1k sw1 sw1, 2, & 3 shown in "fault" position input overvoltage overtemperature module faults figure 2 ?c/sc module alarm logic. figure 5 ?solated on-state indicator. 2-20ms typ. fault sc pc 1.23v 5.7v 40 s typ. figure 4 ?c/sc module alarm timing. figure 6 ?econdary side on-state indicator. 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.
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 375v maxi family rev. 6.1 page 5 of 8 set your site on vicor at www.vicorpower.com 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. control functions - sc pin figure 8 ?utput voltage trim up circuit. figure 7 ?utput voltage trim down circuit. r d (ohms) = 1,000 vout vnom - vout +out +s sc s out r u trim up load error amp 1k ? 1.23v 0.033 f load +out +s sc s out r d trim down error amp 1k ? 1.23v 0.033 f 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 ?ense pin. 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. r u (ohms) = 1,000 ( vout-1.23 ) vnom 1,000 1.23 ( vout-vnom ) 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 375v maxi family rev. 6.1 page 6 of 8 set your site on vicor at www.vicorpower.com +out +s sc s out +sense from other modules in the array figure 12 ?r?ng diodes connections. module 2 module 1 module n+1 +out +s sc s out +out +s sc s out +out +s sc s out load +s s +s s +s s figure 11 ?+1 module array o utput connections. 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. 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 0.001 f (500v) capacitors. this interface supports current sharing and is fault tolerant except for the communication bus. see figure 10. figure 9 ?c coupled single-wire interface. +in pc pr in module 2 (up to 12) +in pc pr in module 1 ground plane +in pc pr in module 2 (up to 12) +in pc pr in module 1 ground plane figure 10 ?c coupled single-wire interface. 0.001f 0.001f pin styles * designator description notes (none) short solder requires in-board, mounting l long solder on-board mounting for 0.65" boards s short modumate surfmate or in-board socket mounting n long modumate on-board socket mounting * pin style designator follows the ??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 375v maxi family rev. 6.1 page 7 of 8 set your site on vicor at www.vicorpower.com mechanical drawings all markings this surface aluminum baseplate pins: tin/lead hot solder dipped 0.195 4,95 1.400* 35,56 1.000* 25,40 0.700* 17,78 0.400* 10,16 3.844 97,64 4.200* 106,68 1.790 45,47 0.06 1,5 r (4x) 0.178 4,52 5 6 7 8 9 12 34 0.003 0,08 * denotes tol = plated thru hole dia pcb thickness 0.062 0.010 1,57 0,25 pin style 1 0.094 0.003 2,39 0,08 0.194 0.003 4,93 0,08 pin style 2 0.094 0.003 2,39 0,08 0.194 0.003 4,93 0,08 inboard solder mount 0.43 10,9 onboard solder mount (7x) (2x) 0.53 13,5 pcb mounting specifications 1.74 44,2 2.20 55,9 5 6 7 8 9 4 3 2 1 0.23 5,8 (ref) 0.180 4,57 0.080 2,03 1.400 35,56 1.000 25,40 0.700 17,78 0.400 10,16 dia,(7x) dia,(2x) 4-40 unc-2b thru (4x)*** (style 2 and 3 only) slotted (style 1) or threaded (style 2) 4-40 unc-2b (6x) or thru hole (style 3) #30 drill thru (6x) (0.1285) 0.50 12,7 0.06 1,5 2.20 55,9 (ref) 1.80 45,7 4.60 116,8 3.60 91,4 0.13 3,3 full r (6x) (6x) r (3x) chamfer 0.10 2,5 x 45 0.54 13,7 0.43 10,9 0.38 9,6 0.20** 5,08 0.12* 3,1 (2x) 0.01 use a 4-40 screw (6x) torque to: 5 in-lbs 0.57 n-m pin style 2 (long pin) 0.62 15,7 pin style 1 (short pin) (9x) (9x) (all markings this surface) aluminum baseplate 0.50 0.02 12,7 0,5 * style 1 baseplate only ** style 2 & 3 baseplates *** reserved for vicor accessories not for mounting 4.200 106,68 0.300 0.015 7,62 0,38 0.300 0.015 7,62 0,38 2.00 50,8 0.10 2,5 converter pins no. function label 1 +in + 2 primary pc control 3 parallel pr 4 in 5 out 6 sense s 7 secondary sc control 8 +sense +s 9+out + module outline pins: tin/lead hot solder dip unless otherwise specified, dimensions are in inches mm decimals tol. angles 0.xx 0.01 0,25 1 0.xxx 0.005 0,127
vicor corp. tel: 800-735-6200, 978-470-2900 fax: 978-475-6715 375v maxi family p/n 25497 rev. 6.1 9/02/10m set your site on vicor at www.vicorpower.com component solutions for your power system 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. vicor corporation 25 frontage road andover, ma, usa 01810 tel: 800-735-6200 978-470-2900 fax: 978-475-6715 email vicor express: vicorexp@vicr.com technical support: apps@vicr.com 4 5
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