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DV-704A series 1x019dsd 11314 4th avenue west, suite 206 everett, wa 98204 http://www.vpt-inc.com sales information: phone: (425) 353-3010 fax: (425) 353-4030 e-mail: vptsales@vpt-inc.com 1 high reliability hybrid emi filters description the DV-704A is a combined hybrid emi filter and voltage spike protection module that is operable over the full military (-55 c to +125 c) temperature range with no power derating. the DV-704A emi filter is designed to be used with vpt/delta?s dvsa, dvhf, dvtr, and dvfl series dc-dc converters to comply with the surge requirements of mil-std- 704a, b, c, and d with 40 watts maximum output power. this device also reduces the reflected noise of the dc-dc converters to meet mil-std-461c ce03 and mil-std-461d ce102 limits. it also protects the dc-dc converters against the voltage spikes specified in mil-std-461c cs06 and conducted susceptibility in mil-std-461c cs01 and cs02. these filters are designed and manufactured in a facility qualified to iso9001 and certified to mil- prf-38534 and mil-std-883. this product may incorporate one or more of the following u.s. patents: 5,784,266 5,790,389 5,963,438 5,999,433 6,005,780 6,084,792 6,118,673 features ? high reliability ? up to 2.0 amps maximum current ? 40 db minimum attenuation at 500 khz ? industry standard pinout ? inrush current limit and soft start ? under voltage lockout ? clamps output voltage to 50 volts maximum ? precision seam welded or solder seal hermetic package ? custom versions available ? additional environmental screening available ? meets mil-std-704a, b, c, and d surge limits ? compliant to mil-std-461c ce03 and mil- std-461d ce102 emc requirements ? protects against conducted susceptibility specified in mil-std-461c, cs01 and cs02 and against voltage spikes specified in mil- std-461c cs06 ? mil-prf-38534 element evaluated components figure 1 ? DV-704A emi filter ( not to scale )
DV-704A series 1x019dsd 2 specifications (t case = -55c to +125c, v in = +28v 5%, full load, unless otherwise specified) absolute maximum ratings input voltage (continuous) 40 v dc power dissipation (continuous) 15 watts input voltage (transient, up to 20 s) 600 volts power dissipation (peak) 500 watts output current 3 2.0 amps storage temper ature -65c to +150c weight (maximum) 47 grams lead solder temperature (10 seconds) 300c DV-704A parameter conditions min typ max units static continuous no load 0 28 40 v continuous 2.0 a load 15 28 40 v transient 100 ms, r s = 0.0 ? - - 80 v transient 60 ms, r s = 0.5 ? - - 100 v input voltage 2 transient 20 s, r s = 50 ? - - 600 v no load - - 10 ma current 1 inhibited - - 2.0 ma output voltage continuous v out = v in ? (i in x r dc ) v current 3,4 continuous 0 - 2.0 a open circuit - 14 16 v inhibit pin voltage 2 inhibited 0 - 0.8 v inhibit pin current 2 inhibit pin voltage = 0 to 0.8 v - - -300 a undervoltage lockout 7.0 - 14 v output clamp voltage 43 - 47 v 2.0 a load, 80 v - - 100 ms input surge limit 2 2.0 a load, 100 v - - 80 ms 2.0 a load, 600 v, r s = 50 ? - - 20 s input spike limit 2 2.0 a load, 400 v, r s = 0.5 ? - - 20 s input inrush current 2 v in = 0 ? 28v, no load c l = 100 f - 0.25 0.5 a pk dc resistance continuous - - 450 m ? continuous - - 15 w power dissipation peak - - 500 w noise rejection f = 500 khz 50 - - db capacitance 2 pin to case - 20 - nf isolation any pin to case, 500 v dc 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 0.627 - mhrs notes: 1. derate lin early to 0 at 135c. 2. verified by qualification testing. 3. maximum output power is linearly derated to 0 a from +125c to +135c. 4. rated current applies at any voltage.
DV-704A series 1x019dsd 3 block diagram 28v in pin 1 in com pin 5 case pin 3 28v out pin 2 out com pin 4 protection switch control circuit inhibit pin 6 figure 2 connection diagram 10 in com 2 inh 1 28v in 5 +v out 4 out com load + - 28 vdc 2 28v out 4 out com 1 28v in 5 in com 3 DV-704A emi filter 7, 8 dvtr2800s dc-dc converter case 9 sync 6 +s 3 -s 6 inh figure 3 ? DV-704A emi filter hookup with single converter
DV-704A series 1x019dsd 4 inhibit drive connection diagram 5 in com 6 inh 1 28v in optional capacitor bias 14v 100k optoisolator 6.8v figure 4 ? isolated inhibit drive (shown with optional capacitor for turn-on delay)
DV-704A series 1x019dsd 5 emi measurement method s connection diagrams 10 uf 10 uf current transformer +v in -v in +v out -v out to d.u.t. to 50 ohm input figure 5 ? mil-std-461c measurement method (feedthrough capacitor) +v in -v in +v out -v out to 50 ohm input 50 uh 50 uh figure 6 ? mil-std-461d measurement method (lisn)
DV-704A series 1x019dsd 6 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 7 ? mil-std-461c figure 8 ? mil-std-461c dvtr2800s without emi filter dvtr2800s with DV-704A emi filter figure 9 ? mil-std-461d dvtr2800s with DV-704A emi filter
DV-704A series 1x019dsd 7 package specifications (solder seal) top view side view pin function 1 28v in 2 28v out 3 case 4 out com 5 in com 6 inhibit bottom view figure 10 ? solder seal tin plated package and pinout (n ot used for /hb or higher screened products) (dimensional limits are 0.005? unless otherwise stated)
DV-704A series 1x019dsd 8 package specifications (seam seal) top view side view pin function 1 28v in 2 28v out 3 case 4 out com 5 in com 6 inhibit bottom view figure 11 ? seam seal package and pinout (dimensional limits are 0.005? unless otherwise stated)
DV-704A series 1x019dsd 9 package pin description pin function description 1 28v in positive input voltage connection 2 28v out positive output voltage connection 3 case case connection 4 out com output common connection 5 in com input common connection 6 inhibit logic low = disabled output. connecting the inhibit pin to input common causes filter shutdown. logic high = enabled output. unconnected or open collector ttl.
DV-704A series 1x019dsd 10 environmental screening (100% tested per mil-std-883 as referenced to mil-prf-38534) notes: 1. 100% r&r testing at ?55c, +25c, and +125 c with all test data included in product shipment. 2. pind test certificate of co mpliance included in product shipment. 3. radiographic test cert ificate of compliance and film(s) included in product shipment. screening mil-std-883 standard (no suffix) extended /es hb /hb class h /h class k /k non- destructive bond pull method 2023 ? ? ? ? ? internal visual method 2017, 2032 internal procedure ? ? ? ? ? temperature cycling method 1010, condition c method 1010, -55c to 125c ? ? ? ? constant acceleration method 2001, 3000g, y1 direction method 2001, 500g, y1 direction ? ? ? ? pind method 2020, condition a 2 ? pre burn-in electrical 100% at 25c ? burn-in method 1015, 320 hours at +125c method 1015, 160 hours at +125c 96 hours at +125c 24 hours at +125c ? ? ? ? ? final electrical mil-prf-38534, group a 1 100% at 25c ? ? ? ? ? hermeticity method 1014, fine leak, condition a method 1014, gross leak, condition c dip (1 x 10 -3 ) ? ? ? ? ? ? ? ? ? radiography method 2012 3 ? external visual method 2009 ? ? ? ? ?
DV-704A series 1x019dsd 11 ordering information DV-704A /hb - xxx 1 2 3 (1) (2) (3) product series screening code 1, 2 additional screening code DV-704A none /es /hb /h /k standard extended hb class h class k contact sales notes: 1. contact the vpt inc. sales department for availability of class h (/h) or class k (/k) qualified products. 2. vpt inc. reserves the right to ship higher screen ed or smd products to meet lower screened orders at our sole discretion unless specifically forbidden by customer contract. please contact your sales representative or the vpt inc. sales department for more information concerning additional environmental screening and testing, different input voltage, output voltage, power requirement, source inspection, and/or special element evaluation for space or other higher quality applications.
DV-704A series 1x019dsd 12 smd (standard microcircu it drawing) numbers standard microcircuit drawing (smd) DV-704A series similar part number *t.b.d. DV-704A/h do not use the DV-704A series similar part number for smd product acquisition. it is listed for reference only. for exact specifications for the smd product, refer to the smd drawing. smd?s can be downloaded from the dscc website at http://www.dscc.dla.mil/programs/smcr/ . the smd number listed above is for mil-prf-38534 class h screening, standard gold plated lead finish, and no rha (radiation hardness assurance) level. please reference the smd for other screening levels, lead finishes, and radiation levels. contact information to request a quotation or place orders please contact your sales representative or the vpt inc. sales department at: phone : (425) 353-3010 fax : (425) 353-4030 e-mail : vptsales@vpt-inc.com all information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible erro rs or omissions. the products or specifications cont ained herein are subject to change without notice.

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