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dvsa2800s series ds1x001j 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 dvsa 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 dvsa 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 6 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: > 19 w/in 3 ? custom versions available ? additional environmental screening available ? meets mil-std-461c and mil-std-461d emc requirements when used with a dvma28 emi filter ? 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 ? dvsa2800s dc-dc converter ( exact marking may differ from that shown )
dvsa2800s series ds1x001j 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 +10c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 6 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 2.7 watts weight (maximum) 15 grams dvsa283r3s dvsa2805s 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 60 - 45 60 ma ripple current full load, 20hz to 10mhz - 25 50 - 30 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 3.267 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 4.925 5.00 5.075 v power 3 0 - 4 0 - 5 w current 3 i out 0 - 1.21 0 - 1.0 a ripple voltage v out full load, 20hz to 10mhz - 10 30 - 10 30 mv p-p line regulation v out v in = 15v to 50v - 2 15 - 2 15 mv load regulation v out no load to full load - 20 50 - 15 50 mv efficiency 62 65 - 65 68 - % overload 4 - - 3.3 - - 3.3 w load fault power dissipation short circuit - - 3 - - 3 w capacitive load 4 - - 1000 - - 1000 f switching frequency 350 450 500 350 450 500 khz isolation 500 v dc 100 - - 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 457 - - 457 - khrs dynamic load step output transient v out - 200 300 - 200 500 mv pk load step recovery 2 half load to full load - 450 700 - 450 700 sec line step output transient 4 v out - 250 500 - 350 700 mv pk line step recovery 2, 4 v in = 16v to 40v - 600 1200 - 600 1200 sec turn on delay v out - 10 20 - 10 20 msec turn on overshoot v in = 0v to 28v - 0 15 - 0 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.
dvsa2800s series ds1x001j 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 +10c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 6 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 2.7 watts weight (maximum) 15 grams dvsa2812s dvsa2815s 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 60 - 45 60 ma ripple current full load, 20hz to 10mhz - 30 50 - 30 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 11.82 12.0 12.18 14.775 15.0 15.225 v power 3 0 - 6 0 - 6 w current 3 i out 0 - 0.5 0 - 0.4 a ripple voltage v out full load, 20hz to 10mhz - 10 30 - 10 30 mv p-p line regulation v out v in = 15v to 50v - 2 15 - 2 15 mv load regulation v out no load to full load - 5 50 - 5 50 mv efficiency 71 76 - 72 78 - % overload 4 - - 3 - - 3 w load fault power dissipation short circuit - - 3 - - 3 w capacitive load 4 - - 500 - - 500 f switching frequency 350 450 500 350 450 500 khz isolation 500 v dc 100 - - 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 457 - - 457 - khrs dynamic load step output transient v out - 300 700 - 300 700 mv pk load step recovery 2 half load to full load - 200 400 - 200 400 sec line step output transient 4 v out - 700 1200 - 700 1300 mv pk line step recovery 2, 4 v in = 16v to 40v - 200 600 - 200 600 sec turn on delay v out - 10 20 - 10 20 msec turn on overshoot v in = 0v to 28v - 0 50 - 0 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.
dvsa2800s series ds1x001j 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 +10c input voltage (transient, 1 second) 80 vo lts storage temperature -65c to +150c output power 1 6 watts lead solder temperature (10 seconds) 270c power dissipation (full load, t case = +125c) 2.7 watts weight (maximum) 15 grams dvsa285r2s 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 - 45 60 ma ripple current full load, 20hz to 10mhz - 30 50 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 5.148 5.20 5.252 v output voltage v out t case = -55c to +125c 5.122 5.20 5.278 v power 3 0 - 5.2 w current 3 i out 0 - 1.0 a ripple voltage v out full load, 20hz to 10mhz - 10 30 mv p-p line regulation v out v in = 15v to 50v - 2 15 mv load regulation v out no load to full load - 15 50 mv efficiency 65 68 - % overload 4 - - 3.3 w load fault power dissipation short circuit - - 3 w capacitive load 4 - - 1000 f switching frequency 350 450 500 khz isolation 500 v dc 100 - - m ? mtbf (mil-hdbk-217f) aif @ t c = 55c - 457 - khrs dynamic load step output transient v out - 200 500 mv pk load step recovery 2 half load to full load - 450 700 sec line step output transient 4 v out - 350 700 mv pk line step recovery 2, 4 v in = 16v to 40v - 600 1200 sec turn on delay v out - 10 20 msec turn on overshoot v in = 0v to 28v - 0 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.
dvsa2800s series ds1x001j 5 block diagram under voltage shutdown primary housekeeping supply pwm control voltage and current amplifier s secondary housekeeping su pply pin 6 28v in pin 7 in com l1 c1 q1 rs1 t1 d1 c2 rs2 +v out pin 1 pin 2 out com inh pin 5 feedback magnetic figure 2 connection diagram 7 in com 5 inh 6 28v in 1 +v out 2 out com load + - 28 vdc figure 3
dvsa2800s series ds1x001j 6 inhibit drive connection diagrams 7 in com 5 inh 6 28v in optional capacitor bias 12v 10k 7 in com 5 inh 6 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 5 inh 6 28v in 1 +v out 2 out com load + - 28 vdc 2 28v out 4 out com 1 28v in 5 in com 3 dvma28 emi filter 8 dvsa2800s dc-dc converter case figure 6 ? converter with emi filter
dvsa2800s series ds1x001j 7 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 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4 output pow er (w) efficiency (%) 20 30 40 50 60 70 80 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 output pow e r (w) efficiency (%) figure 7 ? dvsa283r3s figure 8 ? dvsa2805s / dvsa285r2s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) 20 30 40 50 60 70 80 90 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6 output power (w) efficiency (%) 20 30 40 50 60 70 80 0.6 1.2 1.8 2.4 3 3.6 4.2 4.8 5.4 6 output power (w) efficiency (%) figure 9 ? dvsa2812s figure 10 ? dvsa2815s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w)
dvsa2800s series ds1x001j 8 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 11 ? dvsa2800s without emi filter figure 12 ? dvsa2800s with emi filter
dvsa2800s series ds1x001j 9 package specifications pin function pin function 1 +v out 5 inhibit 2 out com 6 28v in 3 n/c 7 in com 4 n/c 8 case figure 13 ? package and pinout
dvsa2800s series ds1x001j 10 package pin description pin function description 1 +v out positive output voltage connection 2 out com output common connection 3 n/c no connection 4 n/c no connection 5 inhibit logic low = disabled output. connecting the inhibit pin to input common causes converter shutdown. logic high = enabled output. unconnected or open collector ttl. 6 28v in positive input voltage connection 7 in com input common connection 8 case case connection
dvsa2800s series ds1x001j 11 environmental screening (100% tested per mil-std-883 as referenced to mil-prf-38534) 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 ? ? ? ? ? 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.
dvsa2800s series ds1x001j 12 ordering information dvsa 28 05 s /hb - xxx 1 2 3 4 5 6 (1) (2) (3) (4) product series nominal input voltage output voltage number of outputs dvsa 28 28 volts 3r3 05 5r2 12 15 3.3 volts 5 volts 5.2 volts 12 volts 15 volts s single (5) (6) screening code 1,2 additional screening code 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.
dvsa2800s series ds1x001j 13 smd (standard microci rcuit drawing) numbers standard microcircuit drawing (smd) dvsa2800s series similar part number 5962-0324101hxc dvsa283r3s/h 5962-0324102hxc dvsa2805s/h 5962-0324103hxc dvsa285r2s/h 5962-0324104hxc dvsa2812s/h 5962-0324105hxc dvsa2815s/h do not use the dvsa2800s 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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