cui .com page 1 of 5 series : vqa description: dc-dc converter 02/05/2013 date page 1 of 5 features ? designed for igbt driver modules ? small footprint ? 3,000 vac isolation ? short circuit protection ? temperature range (-40~85c) ? efficiency up to 80% model input voltage output voltage (vo1) output voltage (vo2) output current (io1) (io2) ripple and noise 1 effciency 2 range (vdc) typ (vdc) typ (vdc) max (ma) max (ma) max (mvp-p) typ (%) VQA-S9-D15-SIP 9 ~ 15 15 -8 100 80 200 80 vqa-s12-d15-sip 11.6 ~ 12.4 15 -8.7 80 40 200 80 vqa-s15-d15-sip 14.5 ~ 15.5 15 -8.7 80 40 150 80 vqa-s15-d17-sip 14.5 ~ 15.5 17 -8.6 80 40 150 80 vqa-s24-d15-sip 23.3 ~ 24.7 15 -8.7 80 40 300 80 note: 1. ripple and noise measured at 20 mhz bandwidth, between pin 6 & 7 (vo1), full load 2. between pin 6 & 7 (vo1), full load 3. all specifcations are measured at 25c unless otherwise specifed part number key vqa-s xx -d xx -sip output voltage base number input voltage date
cui .com date 02/05/2013 page 2 of 5 cui inc series : vqa description: dc-dc converter input parameter conditions/description min typ max units input voltage VQA-S9-D15-SIP vqa-s12-d15-sip all other models vqa-s24-d15-sip 9 11.6 14.5 23.3 12 12 15 24 15 12.4 15.5 24.7 vdc vdc vdc vdc output parameter conditions/description min typ max units line regulation for vin change of 1% vqa-s12-d15-sip vqa-s15-d15-sip vqa-s15-d17-sip vqa-s24-d15-sip for vin change of 25% VQA-S9-D15-SIP 1.2 1.3 1.2 1.2 1.2 1.5 1.5 1.5 1.5 1.5 % % % % % protections parameter conditions/description min typ max units short circuit protection yes safety and compliance parameter conditions/description min typ max units isolation voltage tested for 1 minute at 1 ma max. 3,000 vac isolation capacitance input to output, 1 khz / 1 v all other models vqa-s15-d17-sip VQA-S9-D15-SIP 6.6 8 10 10 pf pf pf rohs compliant yes environmental parameter conditions/description min typ max units operating temperature VQA-S9-D15-SIP all other models -40 -40 105 85 c c storage temperature -50 125 c dc-d c converte r 1 2 + v in c1 7 c2 + v a load 5 6 a v + c3 6 7 5 c1 v in + 1 2 lo ad dc-d c converter test circuit rg ig b t co nt ro ls ig na l c3 + + c2 6 7 5 c1 v in + 2 1 dc-dc converter ig bt dr iv er application circuit 1. the wire between the converter and igbt driver must as short as possible. 2. external flter capacitors should be connected as close as possible to the converter and the igbt driver. 3. to ensure the high peak gate current, the flter capacitors should be low impedance. 4. the output average power of the igbt driver should be less than the output power of dc-dc module. 5. in order to avoid over temperature damage for long time short-circuit, the recommended short-circuit time is less than ten minutes at 25c. v in : s9, s12, s15 c1: 100 f/35v (low impedance) c2: 100 f/35v (low impedance) c3: 100 f/35v (low impedance) v in : s24 c1: 100 f/65v (low impedance) c2: 100 f/35v (low impedance) c3: 100 f/35v (low impedance) c1*, c2, c3: 100 f/35v (low impedance) * c1: 100 f/65v for s24 version
cui .com date 02/05/2013 page 3 of 5 cui inc series : vqa description: dc-dc converter performance curves 100 90 80 70 60 50 40 30 20 10 0 0 8 16 24 32 40 48 56 64 72 80 88 efficiency (%) current i o 1 (ma) 1. output current vs. effciency 2. output current vs. output voltage 20 18 16 14 12 10 8 6 4 2 0 0 8 16 24 32 40 48 56 64 72 80 88 vo ltage v o 1 (v ) current i o 1 (ma) 100 90 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 6 0 70 80 90 100 efficiency (%) current i o 1 (ma) vqa-s12-d15-sip, vqa-s15-d15-sip, vqa-s24-d15-sip 20 18 16 14 12 10 8 6 4 2 0 0 10 20 30 40 50 60 70 80 90 100 vo ltage v o 1 (v ) current i o 1 (ma) vqa-s15-d17-sip vqa-s15-d17-sip 100 90 80 70 60 50 40 30 20 10 0 0 10 20 30 40 50 60 70 80 90 100 efficiency (%) current i o 1 (ma) 20 18 16 14 12 10 8 6 4 2 0 0 10 20 30 40 50 60 70 80 90 100 vo ltage v o 1 (v ) current i o 1 (ma) VQA-S9-D15-SIP VQA-S9-D15-SIP vqa-s12-d15-sip, vqa-s15-d15-sip, vqa-s24-d15-sip
cui .com date 02/05/2013 page 4 of 5 cui inc series : vqa description: dc-dc converter 19 .5 0 [0 .7 68 ] 9. 80 [0 .3 86 ] 12 .5 0[ 0. 49 2] 4. 10 [0 .1 61 ] 7. 62 [0 .3 00 ]2 .5 4[ 0. 10 0] 0. 50 [0 .0 20 ] 3. 20 [0 .1 26 ] 0. 50 [0 .0 20 ] 0. 30 [0 .0 12 ] 1 2 67 vqa-s12/24-d15-sip ?0.70 [0.028] all other models ?1.00 [0.039] 2. 54 [0 .1 00 ] 2.54 [0.100] 1 2 67 5 5 vqa-s12/24-d15-sip 3.70 [ 0.146] all other models 3.20 [0.126] 2. 00 [0 .0 79 ] grid size: 2.54mm x 2.54mm to p view front view bottom view mechanical drawing mechanical parameter conditions/description min typ max units dimensions 0.768 x 0.386 x 0.492 (19.50 x 9.80 x 12.5 mm) inch pin connections pin function 1 vin 2 gnd 5 -vo 6 0 v 7 +vo units: mm [inches] tolerance: 0.25 [0.010] pin section tolerance: 0.10 [0.004]
date 02/05/2013 page 5 of 5 cui inc series : vqa description: dc-dc converter cui offers a two (2) year limited warranty. complete warranty information is listed on our website. cui reserves the right to make changes to the product at any time without notice. information provided by cui is believed to be accurate and reliable. however, no responsibility is assumed by cui for its use, nor for any infringements of patents or other rights of third parties which may result from its use. cui products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. a critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. headquarters 20050 sw 112th ave. tualatin, or 97062 800.275.4899 fax 503.612.2383 cui .com techsupport@cui.com rev. description date 1.0 initial release 08/16/2012 1.01 updated features 09/20/2012 1.02 updated product photograph 11/13/2012 1.03 various updates 02/05/2013 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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