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dvetr2800d series 1x032dse 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 dc-dc converters with integral emi filter description the dvetr series of high reliability dc-dc converters is operable over the full military (-55 c to +125 c) temperature range with no power derating. unique to the dvetr series is a fault tolerant magnetic feedback circuit. operating at a nominal fixed frequency of 500 khz per stage, these regulated, isolated units utilize well-controlled undervoltage lockout circuitry to eliminate slow start- up problems. these converters 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 ? very low output noise ? wide input voltage range: 15 to 50 volts per mil-std-704 ? up to 40 watts output power ? fault tolerant magnetic feedback circuit ? no use of optoisolators ? undervoltage lockout ? indefinite short circuit protection ? current limit protection ? industry standard pinout ? high input transient voltage: 80 volts for 1 sec per mil-std-704a ? precision solder seal hermetic package ? high power density: > 30 w/in 3 ? custom versions available ? additional environmental screening available ? no external emi filter required ? meets mil-std-461c and mil-std-461d emc requirements ? protects against conducted susceptibility specified in mil-std-461c, cs01 and cs02 ? flanged and non-flanged versions available ? mil-prf-38534 element evaluated components figure 1 ? dvetr2800d / dvetr 2800df dc-dc converter ( not to scale )
dvetr2800d series 1x032dse 2 specifications (t case = -55c to +125c, v in = +28v 5%, full load 5 , unless otherwise specified) absolute maximum ratings input voltage (continuous) 50 v dc junction temperature rise to case +15c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 40 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 14 watts weight (maximum) (un-flanged / flanged) (51 / 55) grams dvetr2805d dvetr2812d parameter conditions min typ max min typ max units static continuous 15 28 50 15 28 50 v input voltage 4 transient, 1 sec - - 80 - - 80 v inhibited - - 6 - - 6 ma current no load - - 90 - - 90 ma inhibit pin input 4 0 - 1.5 0 - 1.5 v inhibit pin open circuit voltage 4 9.0 11.0 13.0 9.0 11.0 13.0 v uvlo turn on 13.5 - 14.8 13.5 - 14.8 v uvlo turn off 4 11.0 - 14.5 11.0 - 14.5 v +v out t case = 25c 4.95 5.0 5.05 11.88 12.0 12.12 v +v out t case = -55c to +125c 4.925 5.0 5.075 11.82 12.0 12.18 v -v out t case = 25c 4.80 5.0 5.20 11.80 12.0 12.20 v output voltage 5 -v out t case = -55c to +125c 4.70 5.0 5.30 11.64 12.0 12.36 v total 0 - 30 0 - 40 w power 3,6 v out either output 0 - 21 0 - 28 w current 3,6 v out either output 0 - 4.2 0 - 2.33 a ripple voltage v out full load 5 , 20hz to 10mhz - - 60 - - 50 mv p-p +v out v in = 16v to 40v - - 20 - - 20 mv line regulation -v out v in = 16v to 40v - - 200 - - 200 mv +v out no load to full load 5 - - 50 - - 50 mv load regulation -v out no load to full load 5 - - 200 - - 200 mv cross regulation -v out +load 70%, -load 30% +load 30%, -load 70% - - 650 - - 650 mv efficiency full load 5 70 - - 74 - - % overload 4 - - 16 - - 14 w load fault power dissipation short circuit - - 16 - - 14 w capacitive load 4 either output - - 500 - - 500 f switching frequency 400 500 550 400 500 550 khz isolation 500 v dc , t case = 25c 100 - - 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 413 - - 413 - khrs see notes next page.
dvetr2800d series 1x032dse 3 specifications (t case = -55c to +125c, v in = +28v 5%, full load 5 , unless otherwise specified) absolute maximum ratings input voltage (continuous) 50 v dc junction temperature rise to case +15c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 40 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 14 watts weight (maximum) (un-flanged / flanged) (51 / 55) grams dvetr2805d dvetr2812d parameter conditions min typ max min typ max units dynamic load step output transient v out - - 500 - - 600 mv pk load step recovery 2 half load to full load - - 350 - - 400 sec line step output transient 4 v out - 150 600 - 850 1200 mv pk line step recovery 2, 4 v in = 16v to 40v - 150 500 - 300 500 sec turn on delay v out - - 20 - - 20 msec turn on overshoot v in = 0v to 28v - - 50 - - 50 mv pk notes: 1. dependant on output voltage. 2. time for output voltage to settl e within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing. 5. half load at +v out and half load at ?v out . 6. up to 70% of the total power or curr ent can be drawn from an y one of the two outputs.
dvetr2800d series 1x032dse 4 specifications (t case = -55c to +125c, v in = +28v 5%, full load 5 , unless otherwise specified) absolute maximum ratings input voltage (continuous) 50 v dc junction temperature rise to case +15c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 40 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 14 watts weight (maximum) (un-flanged / flanged) (51 / 55) grams dvetr2815d parameter conditions min typ max units static continuous 15 28 50 v input voltage 4 transient, 1 sec - - 80 v inhibited - - 6 ma current no load - - 90 ma inhibit pin input 4 0 - 1.5 v inhibit pin open circuit voltage 4 9.0 11.0 13.0 v uvlo turn on 13.5 - 14.8 v uvlo turn off 4 11.0 - 14.5 v +v out t case = 25c 14.85 15.0 15.15 v +v out t case = -55c to +125c 14.70 15.0 15.30 v -v out t case = 25c 14.70 15.0 15.30 v output voltage 5 -v out t case = -55c to +125c 14.55 15.0 15.45 v total - - 40 w power 3,6 v out either output - - 28 w current 3,6 v out either output - - 1.87 a ripple voltage v out full load 5 , 20hz to 10mhz - - 50 mv p-p +v out v in = 16v to 40v - - 20 mv line regulation -v out v in = 16v to 40v - - 200 mv +v out no load to full load 5 - - 50 mv load regulation -v out no load to full load 5 - - 200 mv cross regulation -v out +load 70%, -load 30% +load 30%, -load 70% - - 650 mv efficiency full load 5 75 - - % overload 4 - - 14 w load fault power dissipation short circuit - - 14 w capacitive load 4 either output - - 500 f switching frequency 400 500 550 khz isolation 500 v dc , t case = 25c 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 413 - khrs see notes next page.
dvetr2800d series 1x032dse 5 specifications (t case = -55c to +125c, v in = +28v 5%, full load 5 , unless otherwise specified) absolute maximum ratings input voltage (continuous) 50 v dc junction temperature rise to case +15c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 40 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 14 watts weight (maximum) (un-flanged / flanged) (51 / 55) grams dvetr2815d parameter conditions min typ max units dynamic load step output transient v out - - 600 mv pk load step recovery 2 half load to full load - - 300 sec line step output transient 4 v out - 850 1200 mv pk line step recovery 2, 4 v in = 16v to 40v - 300 500 sec turn on delay v out - - 20 msec turn on overshoot v in = 0v to 28v - - 50 mv pk notes: 1. dependant on output voltage. 2. time for output voltage to settl e within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing. 5. half load at +v out and half load at ?v out . 6. up to 70% of the total power or curr ent can be drawn from an y one of the two outputs.
dvetr2800d series 1x032dse 6 block diagram under voltage s h u td o wn primary housekeeping su ppl y pwm control voltage and current amplifier s secondary housekeeping su ppl y pin 10 in com q1 rs1 t1 d1 c2 rs2 inh pin 8 feedback magnetic d2 rs3 c3 pin 1 28v in pin 4 out com pin 5 -v out pin 3 +v out emi filter figure 2
dvetr2800d series 1x032dse 7 connection diagram 10 in com 8 inh 1 28v in 3 +v out 4 out com load + - 28 vdc 5 -v out load figure 3 inhibit drive connection diagrams 10 in com 8 inh 1 28v in optional capacitor bias 12v 10k 10 in com 8 inh 1 28v in optional capacitor bias 12v 10k optoisolator figure 4 ? internal inhibit circuit and recommended drive figure 5 ? isolated inhibit drive (shown with optional capacitor for turn-on delay) (shown with optional capacitor for turn-on delay)
dvetr2800d series 1x032dse 8 efficiency performance curves (t case = 25c, full load, unless otherwise specified) v in = 16v v in = 28v v in = 40v 50 55 60 65 70 75 80 0 5 10 15 20 25 30 output power (w) efficiency (%) 55 60 65 70 75 80 85 0 10203040 output pow er (w) efficiency (%) figure 6 ? dvetr2805d figure 7 ? dvetr2812d efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) 60 65 70 75 80 85 010203040 output power (w) efficiency (%) figure 8 ? dvetr2815d efficiency (%) vs. output power (w)
dvetr2800d series 1x032dse 9 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 9 ? mil-std-461c dvetr2800d figure 10 ? mil-std-461d dvetr2800d
dvetr2800d series 1x032dse 10 package specifications (non -flanged, solder seal) top view side view pin function 1 28v in 2 n/c 3 +v out 4 out com 5 -v out 6 n/c 7 case 8 inhibit 9 n/c 10 in com bottom view figure 11 ? non-flanged, solder seal tin plated package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvetr2800d series 1x032dse 11 package specifications ( flanged, solder seal) top view side view pin function 1 28v in 2 n/c 3 +v out 4 out com 5 -v out 6 n/c 7 case 8 inhibit 9 n/c 10 in com bottom view figure 12 ? flanged, solder seal tin plated package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvetr2800d series 1x032dse 12 package pin description pin function description 1 28v in positive input voltage connection 2 n/c no connection 3 +v out positive output voltage connection 4 out com output common connection 5 -v out negative output voltage connection 6 n/c no connection 7 case case connection 8 inhibit logic low = disabled output. connecting the inhibit pin to input common causes converter shutdown. logic high = enabled output. unconnected or open collector ttl. 9 n/c no connection 10 in com input common connection
dvetr2800d series 1x032dse 13 environmental screening (100% tested per mil-std-883 as referenced to mil-prf-38534) screening mil-std-883 standard (no suffix) extended /es 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 ? ?
dvetr2800d series 1x032dse 14 ordering information dvetr 28 05 d f /es - xxx 1 2 3 4 5 6 7 (1) (2) (3) (4) product series nominal input voltage output voltage number of outputs dvetr 28 28 volts 05 12 15 5 volts 12 volts 15 volts d dual (5) (6) (7) package option screening code 1 additional screening code none f non-flanged flanged none /es standard extended contact sales notes: 1. vpt inc. reserves the right to ship higher scr eened 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.
dvetr2800d series 1x032dse 15 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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