cui .com date 09/10/2012 page 1 of 5 series: VWRBS2 description: dc-dc converter date 09/10/2012 page 1 of 5 features ? 2 w isolated output ? wide input (2:1) ? industry standard 8 pin sip package ? single unregulated outputs ? 1,500 v isolation ? short circuit protection ? wide temperature (-40~85c) ? efficiency up to 80% rohs model input voltage output voltage output current output power ripple and noise 1 ef ciency typ (vdc) range (vdc) (vdc) min (ma) max (ma) max (w) max (mvp-p) typ (%) VWRBS2-d5-s3.3-sip 5 4.5~9.0 3.3 50 500 2 100 64 VWRBS2-d5-s5-sip 5 4.5~9.0 5 40 400 2 100 67 VWRBS2-d5-s9-sip 5 4.5~9.0 9 22 222 2 100 72 VWRBS2-d5-s12-sip 5 4.5~9.0 12 16 167 2 100 73 VWRBS2-d5-s15-sip 5 4.5~9.0 15 13 133 2 100 72 VWRBS2-d5-s24-sip 5 4.5~9.0 24 8 80 2 100 71 VWRBS2-d12-s3.3-sip 12 9.0~18.0 3.3 50 500 2 100 68 VWRBS2-d12-s5-sip 12 9.0~18.0 5 40 400 2 100 75 VWRBS2-d12-s9-sip 12 9.0~18.0 9 22 222 2 100 77 VWRBS2-d12-s12-sip 12 9.0~18.0 12 16 167 2 100 79 VWRBS2-d12-s15-sip 12 9.0~18.0 15 13 133 2 100 80 VWRBS2-d12-s24-sip 12 9.0~18.0 24 8 80 2 100 78 VWRBS2-d24-s3.3-sip 24 18.0~36.0 3.3 50 500 2 100 67 VWRBS2-d24-s5-sip 24 18.0~36.0 5 40 400 2 100 77 VWRBS2-d24-s9-sip 24 18.0~36.0 9 22 222 2 100 79 VWRBS2-d24-s12-sip 24 18.0~36.0 12 16 167 2 100 80 VWRBS2-d24-s15-sip 24 18.0~36.0 15 13 133 2 100 80 VWRBS2-d24-s24-sip 24 18.0~36.0 24 8 80 2 100 80 VWRBS2-d48-s3.3-sip 48 36.0~72.0 3.3 50 500 2 100 71 VWRBS2-d48-s5-sip 48 36.0~72.0 5 40 400 2 100 75 VWRBS2-d48-s9-sip 48 36.0~72.0 9 22 222 2 100 76 VWRBS2-d48-s12-sip 48 36.0~72.0 12 16 167 2 100 78 VWRBS2-d48-s15-sip 48 36.0~72.0 15 13 133 2 100 78 VWRBS2-d48-s24-sip 48 36.0~72.0 24 8 80 2 100 80 notes: 1. ripple and noise are measured at 20 mhz bw
cui .com cui inc series: VWRBS2 description: dc-dc converter date 09/10/2012 page 2 of 5 input parameter conditions/description min typ max units operating input voltage 5 v model 12 v model 24 v model 48 v model 4.5 9.0 18.0 36.0 5 12 24 48 9.0 18.0 36.0 72.0 vdc vdc vdc vdc output parameter conditions/description min typ max units line regulation input voltage from low to high 0.2 0.5 % load regulation measured from 10% load to full load 0.5 0.75 % voltage accuracy input voltage range refer to output load 1 3 % switching frequency 100% load, input voltage range 180 500 khz temperature coef cient 0.03 %/c protections parameter conditions/description min typ max units short circuit protection continuous safety and compliance parameter conditions/description min typ max units isolation voltage for 1 minute at 1 ma max. 1,500 vdc isolation resistance at 500 vdc 1,000 m mtbf 1,000,000 hours rohs compliant yes environmental parameter conditions/description min typ max units operating temperature -40 85 c storage temperature -50 125 c storage humidity non-condensing 95 % temperature rise at full load 15 35 c lead temperature 1.5 mm from case for 10 seconds 300 c part number key VWRBS2 - d xx - s xx -sip input voltage output voltage base number packaging style
cui .com cui inc series: VWRBS2 description: dc-dc converter date 09/10/2012 page 3 of 5 mechanical parameter conditions/description min typ max units dimensions 0.866 x 0.374 x 0.472 (22.00 x 9.50 x 12.00 mm) inch case material plastic (ul94-v0) weight 5.5 g 22.00 (0.4 7 2) (0 . 02 0 ) (0.866) 12. 0 0 0. 50 ( 0. 1 6 1 ) 4 . 10 9.50 2.10 (0 . 374) 1 .3 0 (0 .0 5 1 ) (0.083) 2.54 (0.100) 23 5 2678 1 (bottom view) (side view) ? 1.00 [0.039] 2 . 54[0.100] 2 .5 0[ 0. 09 8] 2.10 [0.083] 2. 54[ 0. 100] 23 5 6 78 1 mechanical drawing pin connections pin function 1 gnd 2 +vin 3 ctrl 5nc 6+vo 70 v 8cs units: mm [inches] tolerance: 0.25 [0.010] pin section tolerance: 0.10 mm [0.004] 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 71 85 100 120 derating curves 1. output power vs. ambient temperature
cui .com cui inc series: VWRBS2 description: dc-dc converter date 09/10/2012 page 4 of 5 1. ctrl terminal when open or high impedance,the converter work well; when this pin is ?high?; the converter shutdown; it should be note that th e input current (ic) should between 5-10ma, exceeding the maximum 20ma will cause permanence damage to the converter. the value of r can be derived as follows : 2. recommended circuit if you want to further decrease the input/output ripple, an ?lc? ltering network may be connected to the input and output ends of the dc/dc converter, see (figure 1). however, the capacitance of the output lter capacitor must be proper. if the capacitance is too big, a startup problem might arise. for every channel of output, provided the safe and reliable operation is ensured, the greatest capacitance of its lter capacitor sees (table 1). 3. input current while using unstable power source, please ensure the output voltage and ripple voltage do not excced indexes of the converter. the preceding power source must be able to provide for converter suf cient starting current ipy. general: ip 1.4*iin-max 4. no parallel connection or plug and play +vo 0v co ut 6 7 8 cs cin vi n gnd 2 1 3 vc r li n ic d1 vin (vdc) cout ( f) 3.3 2,200 5 1,000 9 820 12 680 15 560 24 470 table 1 application notes i n pu t curr e nt(a ) input volta g e ( v ) input voltage range ip r = v c -v d -1.0 i c figure 1 cin 5, 12 v 24, 48 v 100 f 10 ~ 22 f lin -- 4.7 ~ 120 h cout -- 100 f (typ) lout -- 2.2 ~ 10 h cs -- 10 ~ 22 f
cui inc series: VWRBS2 description: dc-dc converter date 09/10/2012 page 5 of 5 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 b e 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 03/12/2010 1.01 v-in nity branding removed 09/10/2012 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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