features ? ? 5.0 watts output power ? ? available in 5, 12 and 15 volt outputs ? ? 16- 40 v dc input range (28 v dc nominal) ? ? total ionizing dose > 25 krads(si) ? ? see hardened to let up to 60 mev ? cm 2 /mg ? ? -55c to +125c operating range ? ? indefinite short circuit protection ? ? flexible mounting ? ? fully isolated - input to output and to case ? ? complimentary emi filter available ? ? electrical performance si milar to asa28xxd series ? ? standard microcircuit drawings available ? hybrid-high reliability radiation tolerant dc-dc converter ama ama28xxd series description the ama28xxd series of dc -dc converter modules has been specifically designed for operation in moderate radiation environments supplementing the higher radiation performance available in the ir hirel art2815t converter series. environ- ments presented to space vehicles operating in low earth orbits, launch boosters, orbiting space stations and similar applications requiring a low power, high performance converter with moderate radiation hardness performance will be optimally served by the ama28xxd series. the physical configuration of the ama28xxd series permits mounting directly to a heat conduction surface without the necessity of signal leads penetrating the heat sink surface. this package configuration permits greater independence in mounting and more mechanical security than traditional packages. in ternational rectifier?s rugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. the ama28xxd has been designed for high density using chip and wire hybrid technology that complies with the class h requirements of mil-prf-38534. manufactured in a facility fully qualified to mil- prf-38534, these converters are fabricated utilizing dla qualified processes. for availa- ble screening options, refer to device screening table in the data sheet. applicable generic lot qualification test data including radiation performance can be made available on request. variations to the standard screening can be accommodated. consult ir hirel san jose for special requirements. 1 2016-05-18 pd-94692g 28v input, dual output
ama28xxd series 2 2016-05-18 specifications absolute maximum ratings ? recommended operating conditions ??? input voltage range -0.5v dc to +50v dc (continuous), input voltage range +16v dc to +40v dc soldering temperature 300c for 10 seconds operating temperature -55c to +125c storage case temperature -65c to +135c 80v (100ms) output power less than or equal to 5w static characteristics -55c t case +125c, v in = 28v dc 5%, c l = 0, unless otherwise specified . for notes to electrical performance characteristics, refer to page 4 parameter group a subgroups test conditions min nom max unit input voltage 16 28 40 v output voltage ama2805d ama2812d AMA2815D ama2805d ama2812d AMA2815D 1 1 1 2, 3 2, 3 2, 3 v in = 28 volts, 20% load on both outputs 4.95 11.88 14.85 4.90 11.76 14.70 5.00 12.00 15.00 5.05 12.12 15.15 5.10 12.24 15.30 v output current 1, 2 ama2805d ama2812d AMA2815D 1, 2, 3 1, 2, 3 1, 2, 3 v in = 16, 28, 40 volts each output each output each output 200 83 67 800 333 267 ma output power 1, 2 1, 2, 3 v in = 28 volts, 100% load 5.0 w output ripple voltage 1, 3 ama2805d ama2812d AMA2815D 1, 2, 3 1, 2, 3 1, 2, 3 v in = 16, 28, 40 volts 100% load bw = 20 hz to 2 mhz 200 200 290 mv pp output voltage regulation 3 line ama2805d ama2812d AMA2815D load ama2805d ama2812d AMA2815D 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 v in = 16, 28, 40 volts i out = 10, 50%, 100% load 10 10 10 10 10 10 25 50 50 50 50 50 mv
ama28xxd series 3 2016-05-18 static characteristics (continued) -55c t case +125c,v in = 28v dc 5%, c l =0, unless otherwise specified . for notes to electrical performance characteristics, refer to page 4 parameter group a subgroups test conditions min nom max unit cross regulation 5 ama2805d ama2812d AMA2815D 1, 2, 3 1, 2, 3 1, 2, 3 minimum 1.0 watt on both outputs 20% - 80% load 15 8.0 8.0 % input current no load inhibit 1, 2, 3 1, 2, 3 v in = 28v, i out = 0, inhibit (pin 5) = open inhibit (pin 5) shorted to input return (pin 7) 35 60 12 ma input ripple current 3 ama2805d ama2812d AMA2815D 1, 2, 3 1, 2, 3 1, 2, 3 v in = 16, 28, 40 volts, 100% load, bw = 20 hz to 2 mhz 100 100 100 ma pp efficiency 3 ama2805d ama2812d AMA2815D ama2805d ama2812d AMA2815D 1, 3 1, 3 1, 3 2 2 2 100% load 66 71 71 60 68 68 % isolation 1 input to output or any pin to case (except pin 8) at 500v dc 100 m ? capacitive load 5, 6 ama2805d ama2812d AMA2815D 4 4 4 no effect on dc performance, total for both outputs 500 200 200 ? f short circuit power dissipation 1, 2, 3 4.0 w mtbf mil-hdbk-217f, sf @ 35oc 700 khrs weight 32 g
ama28xxd series 4 2016-05-18 notes to specifications 1. applicable to positi ve and negative outputs.. 2. maximum combined output is 5.0 watts. 4.0 watts (max.) is available from either output (80%). 3. load current split equally between +v out and ?v out . 4. 1.0 watt load on output under test, 1.0 watt to 4.0 watt load change on other output. 5. capacitive value may be any value from 0 to the maximum limit without compromising dc performance. a capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection c ircuitry, appearing as a short circuit during turn-on. 6. parameter shall be tested as part of design characterizati on and after design or process changes. thereafter, parameters sha ll be guaranteed to the limit specified. 7. load step transition time between 2 and 10 microseconds. 8. recovery time is measured from in itiation of the transient to where v out has returned to within 1% of v out at 50% load. 9. input step transient time between 1 and 10 microseconds. 10 turn-on delay time measurement is for either a step application of power at the i nput or the removal of a ground signal from the inhibit pin while power is applied to the input. dynamic characteristics -55c t case +125c, v in = 28v dc 5%, c l = 0, unless otherwise specified. parameter group a subgroups test conditions min nom max unit short circuit recovery 6 4, 5, 6 0% load to 100% load 25 ms switching frequency 3 4, 5, 6 100% load 500 550 600 khz output response to step transient load changes 3, 7 4, 5, 6 4, 5, 6 load step 50% ? 100% load step 0% ?? 50% -400 -800 +400 +800 mvpk recovery time, step transient load changes 3, 7, 8 4, 5, 6 4, 5, 6 load step 50% ? 100% load step 0% ? 50% 100 2000 ? s output response transient step line changes 3, 6, 9 ama2805d ama2812d AMA2815D 4, 5, 6 4, 5, 6 4, 5, 6 input step 16 ? 40v dc , 100% load -550 -750 -750 +550 +750 +750 mvpk recovery time transient step line changes 3, 6, 9 4, 5, 6 input step 16 ? 40v dc , 100% load 1200 ? s turn on overshoot 3, 10 4, 5, 6 4, 5, 6 0% load 100% load 600 400 mvpk turn on delay 3, 10 4, 5, 6 0% load to 100% load 25 ms
ama28xxd series 5 2016-05-18 radiation specifications block diagram application information inhibit function connecting the inhibit input (pin 5) to input common (pin 7) will cause the converter to shut down. it is recommended that the enable pin be driven by an open collector device capable of sinking at least 400 ma of current. the open circuit voltage of the inhibit input is 10 +1.0 v dc emi filter an optional emi filter is available (asf461 or afh461) will reduce the input ripple current to levels below the limits imposed by mil-std-461 ce03. ? 6 +input 7 input return housekeeping supply 1 +output 3 -output error amplifier controller cs 5 inhibit 8 case 2 output return thermal considerations irrespective of the fact that the ama28xxd series of converters are relatively low power devices and are designed to provide efficient voltage conversion, there will be some heat generated during normal operation. to avoid a continuous thermal rise that may eventually exceed the maximum case temperature rating and to maintain a safe operating environment for the internal components, these converters should be attached to a heat conducting surface allowing a continuous flow of the heat away from the base plate. this becomes more important when operating in the near vacuum environment of space which provides no alternate heat radiating path. parameter condition min typ max unit total ionizing dose mil-std-883, method 1019.4 operating bias applied during exposure 25 krads (si) heavy ion (single event effects) bnl dual van de graf generator 60 mev cm 2 /mg ir hirel currently does not have a dla cert ified radiation hardness assurance program.
ama28xxd series 6 2016-05-18 pin designation mechanical outline ? pin # designation 1 + output 2 output return 3 - output 4 blank 5 inhibit 6 + input 7 input return 8 case ground ?.140 x3 0.25 typ 1.130 1.130 8 7 6 1 2 3 5 1.38 1.63 0.80 0.165 0.40 0.20 0.25 typ 0.88 0.125 0.170 x.xx 0.010 x.xxx 0.005 0.33 tolerance unless otherwise specified: standard microcircuit drawing equivalence standard microcircuit ir hirel standard drawing number part number 5962-04250 ama2812d 5962-04251 AMA2815D
ama28xxd series 7 2016-05-18 device screening notes: ? best commercial practice. ? devices with ?/ch? suffix is a dla class h compliant without radiation performance. no suffix is a radiation rated device but not available as a dl a qualified smd per mil-prf-38534. ? any engineering model (em) build with the ?em? suffix shall only be form, fit and functional equivalent to its flight model (fm) counterpart, and it may not meet the radiation performance. the em model shall not be expected comply with mil-prf-38534 flight qual ity/workmanship standards, and configurat ion control. an em build may use electrical equivalent commercial grade components. ir hi rel will provide a list of non-compliance items upon request. part numbering requirement mil-std-883 method no suffix ? ch ? em ? temperature range ? -55c to +125c -55c to +125c -55c to +85c element evaluation mil-prf-38534 class h class h n/a non-destructive bond pull 2023 n/a n/a n/a internal visual 2017 yes yes ? temperature cycle 1010 cond c cond c cond c constant acceleration 2001, y1 axis 3000 gs 3000 gs 3000 gs pind 2020 cond a cond a n/a burn-in 1015 320 hrs @ 125c (2 x 160 hrs) 320 hrs @ 125c (2 x 160 hrs) 48 hrs @ 125c final electrical (group a) mil-prf-38534 & specification -55c, +25c, +125c -55c, +25c, +85c -55c, +25c, +85c pda mil-prf-38534 2% 2% n/a seal, fine and gross 1014 cond a, c cond a, c cond a radiographic 2012 yes yes n/a external visual 2009 yes yes ? ir hirel headquarters: 101 n. sepulveda blvd., el segundo, california 90245, usa tel: (310) 252-7105 ir hirel leominster: 205 crawford st., leominster, massac husetts 01453, usa tel: (978) 534-5776 ir hirel san jose: 2520 junction avenue, san jose, california 95134, usa tel: (408) 434-5000 data and specifications subject to change without notice.
ama28xxd series 8 2016-05-18 important notice the information given in this document shall be in no event regarded as guarantee of conditions or characteristic. the data contained herein is a characterization of the co mponent based on internal standards and is intended to demonstrate and provide guidance for typical part performan ce. it will require further evaluation, qualification and analysis to determine suitability in the application environm ent to confirm compliance to your system requirements. with respect to any example hints or any typical values stat ed herein and/or any information regarding the application of the product, infineon technologies hereby disclaims any and a ll warranties and liabilities of any kind including without limitation warranties on non- infringement of inte llectual property rights and any third party. in addition, any information given in this document is subject to customer?s compliance with its obligations stated in this document and any applicable legal requirements, norms and standards concerning customer ?s product and any use of the product of infineon technologies in customer?s applications. the data contained in this document is exclusively intended fo r technically trained staff. it is the responsibility of any customer?s technical departments to evaluate the suitab ility of the product for the intended applications and the completeness of the product information given in this document with respect to applications. for further information on the product, technology, deliver y terms and conditions and prices, please contact your local sales representative or go to ( www.infineon.com/hirel). warning due to technical requirements products may contain dangerou s substances. for information on the types in question, please contact your nearest infineon technologies office.
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