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dvhf2800d series ds1x005k 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 dvhf 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 dvhf series are robust and effective input and output filters which provide dramatically reduced input and output noise performance when compared to other manufacturers competing devices. operating at a nominal fixed frequency of 450 khz, these regulated, isolated units utilize a high speed magnetic feedback design and 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 20 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 projection welded hermetic package ? high power density: > 37 w/in 3 ? custom versions available ? additional environmental screening available ? meets mil-std-461c and mil-std-461d emc requirements when used with a dvmh28 emi filter ? flanged and non-flanged versions available. ? mil-prf-38534 element evaluated components ? space applications should consider vpt?s ?s? series of radiation tolerant power conversion devices. contact vpt for details. figure 1 ? dvhf2800d / dvhf2800df dc-dc converter ( exact marking may differ from that shown )
dvhf2800d series ds1x005k 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 +12c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 20 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 6 watts weight ( maximum ) (un-flanged / flanged) (24 / 28) g rams dvhf2805d dvhf2812d 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 - 4 6 - 4 6 ma current no load - 45 65 - 45 65 ma ripple current full load 5 , 20hz to 10mhz - 35 60 - 45 90 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 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 4.75 5.0 5.25 11.52 12.0 12.48 v total 0 - 15 0 - 20 w power 3,6 v out either output 0 - 10.5 0 - 14 w current 3,6 v out either output 0 - 2.1 0 - 1.17 a ripple voltage v out full load 5 , 20hz to 10mhz - 35 60 - 30 50 mv p-p +v out v in = 16v to 40v - 2 20 - 2 20 mv line regulation -v out v in = 16v to 40v - 20 200 - 20 200 mv +v out no load to full load 5 - 5 50 - 5 50 mv load regulation -v out no load to full load 5,7 - 25 200 - 20 200 mv cross regulation -v out +v out = 70%, -v out = 30% +v out = 30%, -v out = 70% - 370 500 - 400 500 mv efficiency full load 5 73 78 - 78 84 - % overload 4 - - 8 - - 8 w load fault power dissipation short circuit - - 8 - - 8 w capacitive load 4 either output - - 500 - - 500 f switching frequency 350 450 500 350 450 500 khz isolation 500 v dc , t case = 25c 100 - - 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 427 - - 427 - khrs see notes next page.
dvhf2800d series ds1x005k 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 +12c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 20 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 6 watts weight ( maximum ) (un-flanged / flanged) (24 / 28) g rams dvhf2805d dvhf2812d parameter conditions min typ max min typ max units dynamic load step output transient v out - 200 400 - 220 400 mv pk load step recovery 2 half load to full load - 300 500 - 200 500 sec line step output transient 4 v out - 400 800 - 500 900 mv pk line step recovery 2, 4 v in = 16v to 40v - 300 700 - 300 500 sec turn on delay v out - 10 20 - 10 20 msec turn on overshoot v in = 0v to 28v - 0 25 - 0 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. 7. 5% load to full load at -55c.
dvhf2800d series ds1x005k 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 +12c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 20 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 6 watts weight ( maximum ) (un-flanged / flanged) (24 / 28) g rams dvhf2815d parameter conditions min typ max units static continuous 15 28 50 v input voltage 4 transient, 1 sec - - 80 v inhibited - 4 6 ma current no load - 50 65 ma ripple current full load 5 , 20hz to 10mhz - 40 90 ma p-p 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 14.85 15.0 15.15 v +v out t case = -55c to +125c 14.775 15.0 15.225 v -v out t case = 25c 14.80 15.0 15.20 v output voltage 5 -v out t case = -55c to +125c 14.40 15.0 15.60 v total - - 20 w power 3,6 v out either output - - 14 w current 3,6 v out either output - - 0.93 a ripple voltage v out full load 5 , 20hz to 10mhz - 30 60 mv p-p +v out v in = 16v to 40v - 2 20 mv line regulation -v out v in = 16v to 40v - 40 200 mv +v out no load to full load 5 - 5 50 mv load regulation -v out no load to full load 5,7 - 25 200 mv cross regulation -v out +v out = 70%, -v out = 30% +v out = 30%, -v out = 70% - 400 500 mv efficiency full load 5 79 85 - % overload 4 - - 8 w load fault power dissipation short circuit - - 8 w capacitive load 4 either output - - 500 f switching frequency 350 450 500 khz isolation 500 v dc , t case = 25c 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 427 - khrs see notes next page.
dvhf2800d series ds1x005k 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 +12c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 20 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 6 watts weight ( maximum ) (un-flanged / flanged) (24 / 28) g rams dvhf2815d parameter conditions min typ max units dynamic load step output transient v out - 200 400 mv pk load step recovery 2 half load to full load - 100 500 sec line step output transient 4 v out - 500 900 mv pk line step recovery 2, 4 v in = 16v to 40v - 300 500 sec turn on delay v out - 10 20 msec turn on overshoot v in = 0v to 28v - 0 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. 7. 5% load to full load at -55c.
dvhf2800d series ds1x005k 6 block diagram under voltage shutdown primary h ousekeepin g supply pwm control voltage and current amplifiers secondary h ousekeepin g su ppl y pin 7 in com l1 c1 q1 rs1 t1 d1 c2 rs2 inh pin 1 feedback magnetic d2 rs3 c3 pin 8 28v in pin 3 out com pin 4 -v out pin 2 +v out figure 2 connection diagram 7 in com 1 inh 8 28v in 2 +v out 3 out com load + - 28 vdc 4 -v out load figure 3
dvhf2800d series ds1x005k 7 inhibit drive connection diagrams 7 in com 1 inh 8 28v in optional capacitor bias 12v 10k 7 in com 1 inh 8 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 7 in com 1 inh 8 28v in 2 +v out 3 out com load + - 28 vdc 2 28v out 4 out com 1 28v in 5 in com 3 dvmh28 emi filter 6 dvhf2800d dc-dc converter case 4 -v out load figure 6 ? converter with emi filter
dvhf2800d series ds1x005k 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 051015 output pow er (w) efficiency (%) 55 60 65 70 75 80 85 0 5 10 15 20 output pow er (w) efficiency (%) figure 7 ? dvhf2805d figure 8 ? dvhf2812d efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) 60 65 70 75 80 85 90 0 5 10 15 20 output pow er (w) efficiency (%) figure 9 ? dvhf2815d efficiency (%) vs. output power (w)
dvhf2800d series ds1x005k 9 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 10 ? dvhf2800d without emi filter figure 11 ? dvhf2800d with emi filter
dvhf2800d series ds1x005k 10 package specifications (non-flanged) pin function pin function 1 inhibit 5 n/c 2 +v out 6 case 3 out com 7 in com 4 -v out 8 28v in figure 12 ? non-flanged package and pinout
dvhf2800d series ds1x005k 11 package specifications (flanged) pin function pin function 1 inhibit 5 n/c 2 +v out 6 case 3 out com 7 in com 4 -v out 8 28v in figure 13 ? flanged package and pinout
dvhf2800d series ds1x005k 12 package pin description pin function description 1 inhibit logic low = disabled output. connecting the inhibit pin to input common (pin 7) causes converter shutdown. logic high = enabled output. unconnected or open collector ttl. 2 +v out positive output voltage connection 3 out com output common connection 4 -v out negative output voltage connection 5 n/c no connection 6 case case connection 7 in com input common connection 8 28v in positive input voltage connection
dvhf2800d series ds1x005k 13 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 ? ? ? ? ?
dvhf2800d series ds1x005k 14 ordering information dvhf 28 05 d f /hb - xxx 1 2 3 4 5 6 7 (1) (2) (3) (4) product series nominal input voltage output voltage number of outputs dvhf 28 28 volts 05 12 15 5 volts 12 volts 15 volts d dual (5) (6) (7) package option screening code 1,2 additional screening code none f non- flanged flanged 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.
dvhf2800d series ds1x005k 15 smd (standard microci rcuit drawing) numbers standard microcircuit drawing (smd) dvhf2800d series similar part number 5962-0324401hxc 5962-0324401hyc dvhf2805d/h dvhf2805df/h 5962-0324402hxc 5962-0324402hyc dvhf2812d/h dvhf2812df/h 5962-0324403hxc 5962-0324403hyc dvhf2815d/h dvhf2815df/h do not use the dvhf2800d 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. all smd products are marked with a ?q? on the cover as specified by the qml certification mark requirement of mil-prf-38534. 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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