at the time of printing, the devices described in this advanced product description data sheet are in the development stage; th erefore all features and specifications are preliminary and subject to change before release in their final form. lambda advanced analog inc. advance product description amf2800 series radiation tolerant dc/dc converters description features the amf2800 series of dc/dc converter modules has been specifically designed for operation in moderate radiation environments supplementing the higher radiation performance available in the lambda advanced analog art2815t converter series. environments 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 amf2800 series. the physical configuration of the amf2800 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. lambda advanced analog?s rugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. the amf2800 has been designed for high density using chip and wire hybrid technology that complies with the intent of mil-prf-38534. finished product will be fabricated in a facility fully qualified to mil- prf-38534. the standard processing adopted for the amf2805s is similar to the requirements of mil- prf-38534 for class h, and includes element evaluation. applicable generic lot qualification test data including radiation performance can be made available on request. variations to the standard screening can be accommodated. consult lambda advanced analog for special requirements. ! 12 watts output power ! available with 5, 12 and 15 volt outputs ! single and dual output versions ! nominal 28 volt input ! total ionizing dose > 30krad (si) ! no see to let > 60 mev-cm 2 /mg ! -55c to +125c operating range ! full load fault protection ! flexible mounting ! high power density ! all elements conservatively derated ! fully isolated - input to output and to case ! complementary emi filter available ! performance similar to ahf28xxx series part numbering amf 28 05 s model input voltage 28 = 28v outputs s = single d = dual output voltage 5 = 5v 12 = 12v 15 = 15v
amf2800s amf2800s amf2800s amf2800s lambda advanced analog inc. 2270 martin avenue santa clara ca 95050 ph (408) 988-4930 fax (408) 988-2702 0007 absolute maximum ratings (exceeding these limits may cause damage to the device) input voltage: -0.5v to +50vdc (50 msec) power output: internally limited to 6 w typical soldering: 300c, 10 sec temperature range: operating ? -55c to +125c storage ? -65c to +135c typical performance characteristics parameter conditions unless otherwise specified -55 c t c +125 c, v in +28vdc, c l =0 limits output voltage accuracy power ripple voltage i out = i max , t c = +25 c v min v in v max i out = i max 1% 12 w 50 mv pp regulation line load v min v in v max i min i out i max 0.5% 1% input voltage range ripple current v min v in v max , i out = i max 16 v to 40 vdc 100 ma pp switching frequency synchronization input open 550 khz efficiency i out = i max , t c = +25 c 80% load fault power dissipation short circuit or overload 6 w load transient response recovery 50% load to/from 100% load 5% v out 100 sec line transient response recovery i out = i max , v in = 16 v to/from 40 v 7% v out 400 sec turn on delay i out = i min or i max 11 msec mechanical outline 1 2345 6 7 8 0.500 0.700 0.900 0.300 1.450 1.790 1.220 0.920 2.05 0.33 0.20 0.03d x 0.25l 8 pins ? 0.14
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