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dvetr2800s series 10031dsa 17921 bothell-everett highway, suite 108 bothell, wa 98012 http://www.vpt-inc.com sales information: phone: (425) 487-4850 fax: (425) 487-4802 e-mail: sales@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, compliant to as9000, and certified to mil-prf-38534 and mil-std-883. 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 industry standard pinout high input transient voltage: 80 volts for 1 sec per mil-std-704a 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, sc01 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 10031dsa 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 volts 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 50 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 - - 75 - - 75 ma inhibit pin input 4 0-1.50-1.5v inhibit pin open circuit voltage 4 9.0 11.0 13.0 9.0 11.0 13.0 v uvlo turn on 13.0 - 14.8 13.0 - 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 - 20 0 - 30 w current 3 v out 0 - 6.06 0 - 6.0 a ripple voltage v out full load, 20hz to 20mhz - - 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 - - 12 - - 12 w load fault power dissipation short circuit - - 12 - - 12 w capacitive load 4 - - 1000 - - 1000 f switching frequency 350 475 550 350 475 550 khz sync frequency range v h - v l = 5v, dc = 20-80% 500 - 600 500 - 600 khz isolation 500 v dc 100 - - 100 - - m ? thermal resistance case to ambient ( ca) -19- -19-c/w 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 2 v in = 0v to 28v - - 15 - - 25 mv pk notes: 1. dependant on output voltage. 2. time for output voltage to settle within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing.
dvetr2800s series 10031dsa 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 volts 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 50 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 - - 75 - - 75 ma inhibit pin input 4 0-1.50-1.5v inhibit pin open circuit voltage 4 9.0 11.0 13.0 9.0 11.0 13.0 v uvlo turn on 13.0 - 14.8 13.0 - 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 - 40 0 - 40 w current 3 v out 0 - 3.33 0 - 2.67 a ripple voltage v out full load, 20hz to 20mhz - - 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 - - 12 - - 12 w load fault power dissipation short circuit - - 12 - - 12 w capacitive load 4 - - 500 - - 500 f switching frequency 350 475 550 350 475 550 khz sync frequency range v h - v l = 5v, dc = 20-80% 500 - 600 500 - 600 khz isolation 500 v dc 100 - - 100 - - m ? thermal resistance case to ambient ( ca) -19- -19-c/w 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 2 v in = 0v to 28v - - 50 - - 50 mv pk notes: 1. dependant on output voltage. 2. time for output voltage to settle within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing.
dvetr2800s series 10031dsa 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 volts 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 50 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 - - 75 ma inhibit pin input 4 0-1.5v inhibit pin open circuit voltage 4 9.0 11.0 13.0 v uvlo turn on 13.0 - 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 0-30w current 3 v out 0-6.0a ripple voltage v out full load, 20hz to 20mhz - - 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 --12w load fault power dissipation short circuit - - 12 w capacitive load 4 - - 1000 f switching frequency 350 475 550 khz sync frequency range v h - v l = 5v, dc = 20-80% 500 - 600 khz isolation 500 v dc 100 - - m ? thermal resistance case to ambient ( ca) -19-c/w 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 - 300 600 mv pk line step recovery 2, 4 v in = 16v to 40v - 300 500 sec turn on delay v out --20msec turn on overshoot 2 v in = 0v to 28v --25mv pk notes: 1. dependant on output voltage. 2. time for output voltage to settle within 1% of its nominal value. 3. derate linearly to 0 at 135c. 4. verified by qualification testing.
dvetr2800s series 10031dsa 5 block diagram under voltage shutdown primary housekeeping supply pwm control voltage and current amplifiers secondary housekeeping su pply 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 10031dsa 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 10031dsa 7 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 pow er (w) efficiency (%) 45 50 55 60 65 70 75 0 5 10 15 20 25 30 output pow er (w) efficiency (%) figure 6 ? DVETR283R3S figure 7 ? dvetr2805s / dvetr285r2s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w) 55 60 65 70 75 80 010203040 output power (w) efficiency (%) 55 60 65 70 75 80 0 10203040 output pow er (w) efficiency (%) figure 8 ? dvetr2812s figure 9 ? dvetr2815s efficiency (%) vs. output power (w) efficiency (%) vs. output power (w)
dvetr2800s series 10031dsa 8 emi performance curves (t case = 25c, v in = +28v 5%, full load, unless otherwise specified) figure 10 ? mil-std-461c dvetr2800s figure 11 ? mil-std-461d dvetr2800s
dvetr2800s series 10031dsa 9 package specifications (non-flanged, solder seal) top view side view pin function 1 28v in 2 inhibit 3-s 4out com 5+v out 6+s 7 case 8n/c 9n/c 10 in com bottom view figure 12 ? non-flanged, solder seal package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvetr2800s series 10031dsa 10 package specifications (flanged, solder seal) top view side view pin function 1 28v in 2 inhibit 3-s 4out com 5+v out 6+s 7 case 8n/c 9n/c 10 in com bottom view figure 13 ? flanged, solder seal package and pinout (dimensional limits are 0.005? unless otherwise stated)
dvetr2800s series 10031dsa 11 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 environmental screening (per mil-std-883 as referenced to mil-prf-38534, class h) screening mil-std-883 standard (no suffix) extended /es pre-cap inspection method 2017, 2032 internal procedure temperature cycling method 1010, -55c to 125c constant acceleration method 2001, 500g burn-in 96 hours at +125c 24 hours at +125c hermeticity method 1014, fine leak, condition a method 1014, gross leak, condition c dip (1 x 10 -3 ) final electrical 100% at 25c final inspection method 2009
dvetr2800s series 10031dsa 12 ordering information dvetr 28 05 s f /es - xxx 1 23456 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 additional screening code none f non-flanged flanged none /es standard extended contact sales please contact your sales representative or the vpt inc. sales department for more information concerning additional environmental screening and test ing, different input voltage, output voltage, power requirement, source inspection, and/or special element evaluation for space or other higher quality applications. contact information to request a quotation or place an order please contact your sales representative or the vpt inc. sales department at: phone : (425) 487-4850 fax : (425) 487-4802 e-mail : sales@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 contained herein are subject to change without notice.

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