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dvtr2800s series 1x007dsg 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 description the dvtr 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 dvtr series is a magnetic feedback circuit that is radiation immune. operating at a nominal fixed frequency of 475 khz, 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 ? output voltage trim up +10% ? radiation immune 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 ? radiation hardened version available ? precision seam seal or solder seal hermetic package ? high power density: > 40 w/in 3 ? custom versions available ? additional environmental screening available ? meets mil-std-461c and mil-std-461d emc requirements when used with a dvmc28 emi filter ? flanged and non-flanged versions available. ? mil-prf-38534 element evaluated components figure 1 ? dvtr2800s / dvtr2800sf dc-dc converter ( not to scale )
dvtr2800s series 1x007dsg 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) 13 watts weight (maximum) (un-flanged / flanged) (49 / 52) grams dvtr283r3s DVTR2805S 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 ripple current full load, 20hz to 10mhz - - 50 - - 50 ma p-p 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 3.25 3.30 3.35 4.95 5.00 5.05 v output voltage v out t case = -55c to +125c 3.20 3.30 3.40 4.875 5.00 5.125 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 67 - - 72 - - % overload 4 - - 16 - - 16 w load fault power dissipation short circuit - - 16 - - 16 w capacitive load 4 - - 1000 - - 1000 f switching frequency 400 475 550 400 475 550 khz sync frequency range v h - v l = 5v, dc = 20-80% 500 - 600 500 - 600 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 - 300 600 - 300 600 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 - - 15 - - 25 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.
dvtr2800s series 1x007dsg 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) 13 watts weight (maximum) (un-flanged / flanged) (49 / 52) grams dvtr2812s dvtr2815s 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 ripple current full load, 20hz to 10mhz - - 50 - - 50 ma p-p 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 11.70 12.0 12.30 14.625 15.0 15.375 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 76 - - 77 - - % 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 sync frequency range v h - v l = 5v, dc = 20-80% 500 - 600 500 - 600 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 - - 700 mv pk load step recovery 2 half load to full load - - 500 - - 500 sec line step output transient 4 v out - 500 900 - 500 900 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.
dvtr2800s series 1x007dsg 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) 13 watts weight (maximum) (un-flanged / flanged) (49 / 52) grams dvtr285r2s dvtr282r5s 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 ripple current full load, 20hz to 10mhz - - 50 - - 50 ma p-p 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 5.14 5.20 5.26 2.47 2.50 2.53 v output voltage v out t case = -55c to +125c 5.07 5.20 5.33 2.46 2.50 2.54 v power 3 0 - 30 0 - 15 w current 3 v out 0 - 6.0 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 72 - - 63 - - % overload 4 - - 16 - - 18 w load fault power dissipation short circuit - - 16 - - 18 w capacitive load 4 - - 1000 - - 1000 f switching frequency 400 475 550 400 475 550 khz sync frequency range v h - v l = 5v, dc = 20-80% 500 - 600 500 - 600 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 - - 500 - - 400 mv pk load step recovery 2 half load to full load - - 500 - - 500 sec line step output transient 4 v out - 300 600 - 250 450 mv pk line step recovery 2, 4 v in = 16v to 40v - 300 500 - 300 450 sec turn on delay v out - - 20 - - 20 msec turn on overshoot v in = 0v to 28v - - 25 - - 15 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.
dvtr2800s series 1x007dsg 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 l1 c1 q1 rs1 t1 d1 c2 rs2 +v out pin 5 pin 4 out com inh pin 2 feedback magnetic sync pin 9 -s pin 3 +s pin 6 figure 2 connection diagram 10 in com 2 inh 1 28v in 5 +v out 4 out com load + - 28 vdc -s 3 +s 6 sync 9 figure 3
dvtr2800s series 1x007dsg 6 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) emi filter hookup 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 case -s 3 +s 6 7, 8 sync 9 3 dvmc28 emi filter dvtr2800s dc-dc converter figure 6 ? converter with emi filter
dvtr2800s series 1x007dsg 7 parallel 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 case -s 3 +s 6 sync 9 3 7, 8 7, 8 dvmc28 emi filter dvtr2800s dc-dc converter case 10 in com 2 inh 1 28v in 5 +v out 4 out com -s 3 +s 6 sync 9 dvtr2800s dc-dc converter case figure 7
dvtr2800s series 1x007dsg 8 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 8 ? output voltage trim dvtr282r5s dvtr283r3s DVTR2805S dvtr285r2s dvtr2812s dvtr2815s +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 ( ? ) +v out (v) r trim ( ? ) 2.75 1.05k 3.60 1.13k 5.50 1.05k 5.70 1.09k 13.2 1.09k 16.50 1.09k 2.70 1.33k 3.55 1.36k 5.45 1.18k 5.65 1.22k 13.1 1.19k 16.40 1.18k 2.65 1.82k 3.50 1.72k 5.40 1.33k 5.60 1.39k 13.0 1.33k 16.30 1.28k 2.60 2.86k 3.45 2.32k 5.35 1.54k 5.55 1.60k 12.9 1. 49k 16.20 1.4k 2.55 6.67k 3.40 3.59k 5.30 1.82k 5.50 1.89k 12.8 1. 7k 16.10 1.54k 2.50 - 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. 97k 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).
dvtr2800s series 1x007dsg 9 efficiency performance curves (t case = 25c, full load, unless otherwise specified) v in = 16v v in = 28v v in = 40v 20 25 30 35 40 45 50 55 60 65 70 051015 output pow er (w) efficiency (%) 45 50 55 60 65 70 75 0 5 10 15 20 output pow er (w) efficiency (%) 50 55 60 65 70 75 80 0 5 10 15 20 25 30 output pow er (w) efficiency (%) figure 9 ? dvtr282r5s figure 10 ? dvtr283r3s figure 11 ? DVTR2805S / dvtr285r2s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) 60 65 70 75 80 85 0 10203040 output pow er (w) efficiency (%) 60 65 70 75 80 85 0 10203040 output pow er (w) efficiency (%) figure 12 ? dvtr2812s figure 13 ? dvtr2815s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w)
dvtr2800s series 1x007dsg 10 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 14 ? dvtr2800s without emi filter figure 15 ? dvtr2800s with emi filter
dvtr2800s series 1x007dsg 11 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 case 9 sync 10 in com bottom view figure 16 ? non-flanged, solder seal tin plated package and pi nout (not used for /hb or higher screened products) (dimensional limits are 0.005? unless otherwise stated)
dvtr2800s series 1x007dsg 12 package specifications (non-flanged, seam 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 case 9 sync 10 in com bottom view figure 17 ? non-flanged, seam seal package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvtr2800s series 1x007dsg 13 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 case 9 sync 10 in com bottom view figure 18 ? flanged, solder seal tin plated package and pinout (not used for /hb or higher screened products) (dimensional limits are 0.005? unless otherwise stated)
dvtr2800s series 1x007dsg 14 package specifications (flanged, seam 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 case 9 sync 10 in com bottom view figure 19 ? flanged, seam seal package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvtr2800s series 1x007dsg 15 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 case case connection 9 sync synchronization signal 10 in com input common connection
dvtr2800s series 1x007dsg 16 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 ? ? ? ? ?
dvtr2800s series 1x007dsg 17 ordering information dvtr 28 05 s f r /hb - xxx 1 2 3 4 5 6 7 8 (1) (2) (3) (4) product series nominal input voltage output voltage number of outputs dvtr 28 28 volts 2r5 3r3 05 5r2 12 15 2.5 volts 3.3 volts 5 volts 5.2 volts 12 volts 15 volts s single (5) (6) (7) (8) package option rad-hard option 2 screening code 1,3 additional screening code none f non-flanged flanged none r standard 100 krad 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. is not currently qualified to a dscc certified radiation hardness assurance program. 3. 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.
dvtr2800s series 1x007dsg 18 smd (standard microci rcuit drawing) numbers standard microcircuit drawing (smd) dvtr2800s series similar part number *t.b.d. dvtr282r5s/h dvtr282r5sf/h *t.b.d. dvtr283r3s/h dvtr283r3sf/h *t.b.d. DVTR2805S/h DVTR2805Sf/h *t.b.d. dvtr285r2s/h dvtr285r2sf/h *t.b.d. dvtr2812s/h dvtr2812sf/h *t.b.d. dvtr2815s/h dvtr2815sf/h do not use the dvtr2800s 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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