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dvetr2800s series 1x031dsf 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 ? dvetr2800s / dvetr2800sf dc-dc converter ( not to scale )
dvetr2800s series 1x031dsf 2 specifications (t case = -55c to +125c, v in = +28v 5%, full load, 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 dvetr283r3s dvetr2805s 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 12.0 - 14.8 12.0 - 14.8 v uvlo turn off 4 11.0 - 14.5 11.0 - 14.5 v v out t case = 25c 3.267 3.30 3.333 4.95 5.00 5.05 v output voltage v out t case = -55c to +125c 3.25 3.30 3.35 4.90 5.00 5.10 v power 3 0 - 20 0 - 30 w current 3 v out 0 - 6.06 0 - 6.0 a ripple voltage v out full load, 20hz to 10mhz - - 50 - - 50 mv p-p line regulation v out v in = 15v to 50v - - 20 - - 20 mv load regulation v out no load to full load - - 50 - - 50 mv efficiency 65 - - 70 - - % overload 4 - - 16 - - 16 w load fault power dissipation short circuit - - 16 - - 16 w capacitive load 4 - - 1000 - - 1000 f switching frequency 400 475 550 450 500 550 khz isolation 500 v dc 100 - - 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 413 - - 413 - khrs dynamic load step output transient v out - - 400 - - 500 mv pk load step recovery 2 half load to full load - - 500 - - 500 sec line step output transient 4 v out - 150 600 - 150 600 mv pk line step recovery 2, 4 v in = 16v to 40v - 100 500 - 100 500 sec turn on delay v out - - 20 - - 20 msec turn on overshoot v in = 0v to 28v - - 30 - - 50 mv pk notes: 1. dependant on output voltage. 2. time for out put voltage to settle within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing.
dvetr2800s series 1x031dsf 3 specifications (t case = -55c to +125c, v in = +28v 5%, full load, 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 dvetr2812s dvetr2815s 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 12.0 - 14.8 12.0 - 14.8 v uvlo turn off 4 11.0 - 14.5 11.0 - 14.5 v v out t case = 25c 11.88 12.0 12.12 14.85 15.0 15.15 v output voltage v out t case = -55c to +125c 11.72 12.0 12.18 14.775 15.0 15.225 v power 3 0 - 40 0 - 40 w current 3 v out 0 - 3.33 0 - 2.67 a ripple voltage v out full load, 20hz to 10mhz - - 50 - - 50 mv p-p line regulation v out v in = 15v to 50v - - 20 - - 20 mv load regulation v out no load to full load - - 50 - - 50 mv efficiency 74 - - 75 - - % overload 4 - - 14 - - 14 w load fault power dissipation short circuit - - 14 - - 14 w capacitive load 4 - - 500 - - 500 f switching frequency 400 475 550 400 475 550 khz isolation 500 v dc 100 - - 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 413 - - 413 - khrs dynamic load step output transient v out - - 700 - - 800 mv pk load step recovery 2 half load to full load - - 500 - - 500 sec line step output transient 4 v out - 800 1200 - 800 1200 mv pk line step recovery 2, 4 v in = 16v to 40v - 300 500 - 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 out put voltage to settle within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing.
dvetr2800s series 1x031dsf 4 specifications (t case = -55c to +125c, v in = +28v 5%, full load, 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 dvetr285r2s 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 12.0 - 14.8 v uvlo turn off 4 11.0 - 14.5 v v out t case = 25c 5.14 5.20 5.26 v output voltage v out t case = -55c to +125c 5.09 5.20 5.31 v power 3 0 - 30 w current 3 v out 0 - 6.0 a ripple voltage v out full load, 20hz to 10mhz - - 50 mv p-p line regulation v out v in = 15v to 50v - - 20 mv load regulation v out no load to full load - - 50 mv efficiency 70 - - % overload 4 - - 16 w load fault power dissipation short circuit - - 16 w capacitive load 4 - - 1000 f switching frequency 400 500 550 khz isolation 500 v dc 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 413 - khrs dynamic load step output transient v out - - 500 mv pk load step recovery 2 half load to full load - - 500 sec line step output transient 4 v out - 150 600 mv pk line step recovery 2, 4 v in = 16v to 40v - 100 500 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 out put voltage to settle within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing.
dvetr2800s series 1x031dsf 5 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 1 28v in pin 10 in com q1 rs1 t1 d1 c2 rs2 +v out pin 5 pin 4 out com inh pin 2 feedback magnetic -s pin 3 +s pin 6 emi filter figure 2
dvetr2800s series 1x031dsf 6 connection diagram 10 in com 2 inh 1 28v in 5 +v out 4 out com load + - 28 vdc -s 3 +s 6 figure 3 inhibit drive connection diagrams 10 in com 2 inh 1 28v in optional capacitor bias 12v 10k 10 in com 2 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)
dvetr2800s series 1x031dsf 7 output voltage trim + - + - 2.5v ri 100 10k 100 +v out pin 5 +s pin 6 -s pin 3 out com pin 4 (trim up) r-trim the output voltage can be trimmed up by connecting a resistor between the +s pin (pin 6) and the out com pin (pin 4). the maximum trim range is +10%. the appropriate resistor values versus the output voltage are given in the trim table below. the ?s pin should be connected to the out com pin. figure 6 ? output voltage trim dvetr283r3s dvetr2805s dvetr2 85r2s dvetr2812s dvetr2815s +v out (v) r trim ( ? ) +v out (v) r trim ( ? ) +v out (v) r trim ( ? ) +v out (v) r trim ( ? ) +v out (v) r trim ( ? ) 3.60 1.13k 5.50 1.05k 5.70 1. 09k 13.2 1.09k 16.50 1.09k 3.55 1.36k 5.45 1.18k 5.65 1. 22k 13.1 1.19k 16.40 1.18k 3.50 1.72k 5.40 1.33k 5.60 1. 39k 13.0 1.33k 16.30 1.28k 3.45 2.32k 5.35 1.54k 5.55 1. 60k 12.9 1.49k 16.20 1.4k 3.40 3.59k 5.30 1.82k 5.50 1. 89k 12.8 1.7k 16.10 1.54k 3.35 7.87k 5.25 2.22k 5.45 2. 31k 12.7 1.98k 16.00 1.71k 3.30 - 5.20 2.86k 5.40 2.97 k 12.6 2.38k 15.90 1.94k 5.15 4k 5.35 4.16k 12.5 2.96k 15.80 2.22k 5.10 6.67k 5.30 6.93 k 12.4 3.94k 15.70 2.61k 5.05 20k 5.25 20.8k 12.3 5.86k 15.60 3.16k 5.00 - 5.20 - 12. 2 11.4k 15.50 4k 12.1 242k 15.40 5.46k 12.0 - 15.30 8.57k 15.20 20k 15.10 note 1 15.00 - notes: 1. connect r-trim = 400 ? from +vout (pin 5) to +s (pin 6).
dvetr2800s series 1x031dsf 8 efficiency performance curves (t case = 25c, full load, unless otherwise specified) v in = 16v v in = 28v v in = 40v 40 45 50 55 60 65 70 0 5 10 15 20 output power (w) efficiency (%) 45 50 55 60 65 70 75 0 5 10 15 20 25 30 output power (w) efficiency (%) figure 7 ? dvetr283r3s figure 8 ? dvetr2805s / dvetr285r2s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) 55 60 65 70 75 80 0 10203040 output pow er (w) efficiency (%) 55 60 65 70 75 80 010203040 output power (w) efficiency (%) figure 9 ? dvetr2812s figure 10 ? dvetr2815s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w)
dvetr2800s series 1x031dsf 9 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 11 ? mil-std-461c dvetr2800s figure 12 ? mil-std-461d dvetr2800s
dvetr2800s series 1x031dsf 10 package specifications (non -flanged, solder seal) top view side view pin function 1 28v in 2 inhibit 3 -s 4 out com 5 +v out 6 +s 7 case 8 n/c 9 n/c 10 in com bottom view figure 13 ? non-flanged, solder seal tin plated package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvetr2800s series 1x031dsf 11 package specifications ( flanged, solder seal) top view side view pin function 1 28v in 2 inhibit 3 -s 4 out com 5 +v out 6 +s 7 case 8 n/c 9 n/c 10 in com bottom view figure 14 ? flanged, solder seal tin plated package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvetr2800s series 1x031dsf 12 package pin description pin function description 1 28v in positive input voltage connection 2 inhibit logic low = disabled output. connecting the inhibit pin to input common causes converter shutdown. logic high = enabled output. unconnected or open collector ttl. 3 -s return sense 4 out com output common connection 5 +v out positive output voltage connection 6 +s positive sense 7 case case connection 8 n/c no connection 9 n/c no connection 10 in com input common connection
dvetr2800s series 1x031dsf 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 ? ?
dvetr2800s series 1x031dsf 14 ordering information dvetr 28 05 s 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 3r3 05 5r2 12 15 3.3 volts 5 volts 5.2 volts 12 volts 15 volts s single (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 hig her screened or smd products to meet lower screened orders at our sole discretion unless spec ifically 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.
dvetr2800s series 1x031dsf 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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