product highlights vicors 2nd generation dc-dc converters represent a quantum leap in the performance and flexibility of power components. with advanced power processing, control, and packaging technologies, power density has tripled while reducing the cost per watt of processed power. a high level of silicon integration reduces parts count to less than a third of 1st generation converters, increasing reliability. fully encapsulated, vicor 2nd generation modules utilize a proprietary spin fill process that assures complete, void free encapsulation making them suitable for the most harsh military environments. two military grades (h & m) are available with temperatures to -55c operating and -65c storage. h & m-grade modules have been subjected to the environmental testing requirements of mil-std-810, mil-s-901, and mil-std-202 and undergo 100% environmental stress screening. 24/ 28v , 48v, 270 /300v, 375v military 2nd generation dc-dc converters 8 24/ 28 and 270 /300vdc compliant to mil-std-704e single output: 2 ?48vdc mil-std-810 environments operating temperatures from -55? to 100? zvs/zcs power architecture environmental stress screening programmable output: 10 to 110% power density: up to 100w/in 3 ovp and thermal shutdown input undervoltage lockout parallelable for increased power v 300 a 48 m 500 a l input package output product grade output pin style baseplate voltage a = maxi voltage h = 40? to +100? power blank = short solder blank = slotted b = mini m = 55? to +100? l = long solder 2 = threaded c = micro s = short modumate 1 3 = thru-hole n = long modumate 1 maxi converter example: v300a48m500al 300vin, maxi, 48vout @ 500w, long pins mini converter example: v300b15m250al 300vin, mini, 15vout @ 250w, long pins micro converter example: v300c24m150a 300vin, micro, 24vout @ 150w, short pins part numbering 1 compatible with inmate and surfmate socketing systems. features contact factory or see vicorpower.com for model number of units in red. 24vin series output power (watts) output voltage (vdc) maxi mini micro 2v 160 80 40 3.3v 264 132 75 5v 400 200 100 12v 400 200 100 15v 400 200 100 24v 400 200 100 28v 400 200 100 48v 400 200 100 300vin series output power (watts) output voltage (vdc) maxi mini micro 2v 160 100 50 3.3v 264 150 75 5v 400 200 100 12v 500 250 150 15v 500 250 150 24v 500 250 150 28v 500 250 150 48v 500 250 150 48vin series output power (watts) output voltage (vdc) maxi mini micro 2v 160 100 50 3.3v 264 150 75 5v 400 200 100 12v 500 250 150 15v 500 250 150 24v 500 250 150 28v 500 250 150 48v 500 250 150 375vin series output power (watts) output voltage (vdc) maxi mini micro 2v 160 100 50 3.3v 264 150 75 5v 400 200 100 12v 600 300 150 15v 600 300 150 24v 600 300 150 28v 600 300 150 48v 600 300 150 nominal range transient mil compliance 24v 18 ?36v 50v 100ms mil-std-704e for 28vin 48v 36 ?75v 100v 100ms 300v 180 ?375v 400v 100ms mil-std-704e for 270vin 375v 250 ?425v 500v 100ms input voltage
module enable/disable. the module may be disabled by pulling pc below 2.3v with respect to the Cinput. 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 oring diodes. see figure 1. 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 3. 9 parameter min typ max units notes input characteristics undervoltage turn-on 24v 17.5 17.9 vdc 48v 34.9 35.7 vdc 300v 174.6 178.2 vdc 375v 242.5 247.5 vdc undervoltage turn-off 24v 14.74 15.3 vdc 48v 29.4 30.5 vdc 300v 147.4 152.8 vdc 375v 204.7 212.2 vdc overvoltage turn-off/on 24v 36.3 37.8 39.6 vdc 48v 75.7 78.8 82.5 vdc 300v not included vdc 375v 429.2 446.3 467.5 vdc output characteristics line regulation ?.02 ?.20 % 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 for tr imming below 90% of programming range 10 110 % vnom nominal, a minimum load may be required. current limit 115 % iout output voltage 95% of nominal short circuit current 115 % iout output voltage < 250mv isolation characteristics 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 rating unit notes thermal characteristics operating temperature (h-grade) -40 to +100 ? baseplate storage temperature (h-grade) -55 to +125 ? operating temperature (m-grade) -55 to +100 ? baseplate storage temperature (m-grade) -65 to +125 ? temperature limiting (typical) 115 ? environmental stress screening see page 30 for details general specifications (see vicorpower.com for model specific data sheets) specifications control functions - pc pin +in pc pr ?n disable disable = pc <2.3v figure 1 ?module enable/disable figure 2 ?pc/sc module alarm logic figure 3 ?pc/sc module alarm timing +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 2-20ms typ. fault sc pc 1.23v 5.7v 40 s typ.
10 control functions - sc pin control functions - pr pin output voltage programming. the output voltage of the converter can be adjusted or programmed via fixed resistors, potentiometers, or voltage dacs. see figures 4 and 5. r u (ohms) = 1,000 ( vout-1.23 ) vnom 1,000 1.23 ( vout-vnom ) r d (ohms) = 1,000 vout vnom - vout trim-down. 1. this converter is not a constant power device C 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 Csense pin (Cout pin on a micro). 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. (+out pin on a micro). 3. do not trim the converter above maximum trim range (typically +10%) or the output overvoltage protection circuitry may be activated. 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: 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 6. 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 7. +out +s sc s out r u trim up load error amp 1k ? 1.23v 0.033 f figure 5 ?output voltage trim-up circuit (micro inset) load +out +s sc s out r d trim down error amp 1k ? 1.23v 0.033 f figure 4 ?output voltage trim-down circuit (micro inset) +in pc pr in module 2 (up to 12) +in pc pr in module 1 ground plane figure 7 ?ac coupled single-wire interface +in pc pr in module 2 (up to 12) +in pc pr in module 1 ground plane figure 6 ?dc coupled single-wire interface 0.001f 0.001f load r d trim down error amp 1k ? 1.23v 0.033 f +out sc out r u trim up load error amp 1k ? 1.23v 0.033 f +out sc out note: please consult the appropriate vicor design guide for additional information regarding the use of these products.
pin styles tin/lead hot solder dip (pin style 1&2) gold plated copper (pin style s&n) pin styles tin/lead hot solder dip (pin style 1&2) gold plated copper (pin style s&n) 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&n (long pin) 0.62 15,7 pin style 1&s (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 (2x) 0.01 0.35 8,8 0.20** 5,1 0.12* 3,1 dia,(7x) 0.150 3,81 (ref) dia,(2x) 0.080 2,03 4 3 1 98 2 76 5 0.23 5,8 0.400 10,16 1.400 35,56 1.000 25,40 0.700 17,78 2.20 55,9 1.74 44,2 full r (6x) (6x) (ref.) 0.10 2,5 1.30 33,0 2.28 57,9 2.20 55,9 0.130 3,30 0.49 12,4 0.65 16,5 0.06 1,5 r (3x) x 45 ? chamfer use a 4-40 screw (6x) torque to: 5 in-lbs .57 n-m 0.54 13,7 0.43 10,9 pin style 2&n (long pin) 0.62 15,7 pin style 1&s (short pin) (9x) (9x) (all markings this surface) aluminum baseplate style 2 & 3 baseplates only (4x)*** 0.300 0.015 7,62 0,38 . 300 0.015 7 ,62 0,38 1.900 48,26 2.000 50,80 0.10 2,5 5 6 7 4 3 2 1 (ref) 0.080 2,03 dia. (7x) 0.21 5,2 0.27 6,9 (2x) 1.04 26,4 1.45 36,8 0.275 6,99 0.800 20,32 0.525 13,34 0.400 10,16 0.12* 3,1 0.20** 5,08 full r (6x) 0.10 2,5 chamfer (ref.) (6x) 0.65 16,5 0.49 12,4 1.30 33,0 2.28 57,9 1.45 36,8 0.13 3,3 0.06 1,5 r (3x) 0.01 x 45 ? use a 4-40 screw (6x) torque to: 5 in-lbs 0.57 n-m 0.54 13,7 0.43 10,9 pin style 2&n (long pin) 0.62 15,7 pin style 1&s (short pin) (7x) (7x) (all markings this surface) aluminum baseplate style 2 & 3 baseplates only (4x)*** 0.490 .015 12,45 0,38 (ref) 2.000 50,80 0.235 .015 5,97 0,38 (ref) 0.350 .015 8,89 0,38 (ref) 1.27 32,3 0.09 2,3 mechanical drawing 11 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 + 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 + converter pins no. function label 1 +in + 2 primary pc control 3 parallel pr 4 in 5 out 6 secondary sc control 7+out + maxi mini micro pin styles tin/lead hot solder dip (pin style 1&2) gold plated copper (pin style s&n)
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