cui .com date 11/08/2012 page 1 of 5 series: vhs2-sip description: dc-dc converter date 11/08/2012 page 1 of 5 features ? 2 w isolated output ? industry standard 7 pin sip package ? single unregulated outputs ? 6,000 v isolation ? short circuit protection ? ul safety approvals ? wide temperature (-40~85c) ? efficiency up to 84% rohs part number key 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 (%) vhs2-s5-s5-sip 5 4.5~5.5 5 40 400 2 150 80 VHS2-S5-S9-SIP 5 4.5~5.5 9 23 222 2 150 81 vhs2-s5-s12-sip 5 4.5~5.5 12 17 167 2 150 84 vhs2-s5-s15-sip 5 4.5~5.5 15 14 133 2 150 84 vhs2-s12-s5-sip 12 10.8~13.2 5 40 400 2 150 81 vhs2-s12-s9-sip 12 10.8~13.2 9 23 222 2 150 82 vhs2-s12-s12-sip 12 10.8~13.2 12 17 167 2 150 80 vhs2-s12-s15-sip 12 10.8~13.2 15 14 133 2 150 84 notes: 1. ripple and noise are measured at 20 mhz bw vhs2 - s xx - s xx -sip input voltage output voltage base number packaging style
cui .com cui inc series: vhs2-sip description: dc-dc converter date 11/08/2012 page 2 of 5 input parameter conditions/description min typ max units operating input voltage 5 v model 12 v model 4.5 10.8 5 12 5.5 13.2 vdc vdc output parameter conditions/description min typ max units line regulation for vin change of 1% 1.2 % load regulation measured from 10% load to full load 15 % voltage accuracy see derating curves switching frequency 100% load, input voltage range 250 khz temperature coef cient 0.03 %/c protections parameter conditions/description min typ max units short circuit protection 1s safety and compliance parameter conditions/description min typ max units isolation voltage for 1 minute at 1 ma max. 6,000 vdc isolation resistance at 500 vdc 1,000 m safety approvals ul 60950 (e222736) mtbf 3,500,000 hours rohs compliant yes environmental parameter conditions/description min typ max units operating temperature -40 85 c storage temperature -55 125 c storage humidity non-condensing 95 % temperature rise at full load 15 25 c lead temperature 1.5 mm from case for 10 seconds 300 c
cui .com cui inc series: vhs2-sip description: dc-dc converter date 11/08/2012 page 3 of 5 mechanical parameter conditions/description min typ max units dimensions 0.768 x 0.386 x 0.492 (19.50 x 9.80 x 12.50 mm) inch case material plastic (ul94-v0) weight 4.2 g side view bottom view 2.54 1 2 57 5 1 2 mechanical drawing pin connections pin function 1 +vin 2 -vin 50v 7 +vout units: mm tolerance: 0.25 pin section tolerance: 0.10 mm +10% +5% output current (%) nominal voltage 50% output voltate (%) 10% 100% +2.5% -2.5% -7.5% 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 85 105 120 derating curves 1. output power vs. ambient temperature 2. output voltage vs. output current
cui .com cui inc series: vhs2-sip description: dc-dc converter date 11/08/2012 page 4 of 5 application notes 1. input ltering to reduce the re ected ripple current and minimize emi, especially when the converter input is more than 2? away from the dc source, it is recommended to connect a low esr electrolytic capacitor between +vin and -vin. the values suggested are as shown in table 1. if additional ltering is required, the capacitance may be increased, or expanded to an lc network as shown in figure 1. 2. output ltering an output capacitor is needed to meet output ripple requirements as shown in table 2. output capacitance may be increased for a d- ditional ltering, but should not exeed 10 f or expanded to an lc network as in figure 1. 3. minimum loading the converter needs a minimum of 10% loading to maintain output regulation. operation under no-load conditions will not cause i m- mediate damages but may reduce reliability, and cause performance not to meet speci cations. 4. regulation with a semi-regulated design, the converter?s output voltage varies with load current and will change proportionally to the inp ut volt- age. if regulated output is needed, an external regulator can be used as shown in figure 2. 5. protection the converter has minimal protection against input over-voltage or output over-load, and may be permanently damaged if exposed to these conditions. an input clamping device can be used for input voltage limiting. an input fuse or an output fuse can also be used to protect against over-loading. 6. dual outputs used as a single output the +vout and -vout can be used to obtain a single output that is the sum of the two outputs. in this case, the com pin shouldn ?t be used. 7. external regulator an external 3-terminal regulator can be connected to the output of the converter to achieve full regulation. make sure the conv erter?s output voltage provides suf cient head room for the regulator. an additional bene t is that the built-in protection features in the regu- lator, such as ocp, otp, etc, will protect the converter also. in a complimentory supply, a negative output regulator must be u sed to achieve the negative regulated output. +vin -vin +vout -vout dc c l l dc c figure 1 input voltage external input capacitance 5 v 4.7 f 12 v 2.2 f 24 v 1.0 f table 1 table 2 figure 2 output voltage external input capacitance 5 v 4.7 f 9 v 2.2 f 12 v 1.0 f 15 v 0.47 f +vin -vin +vin -vin reg +vout -vout -vout +vou t dc dc dc dc reg
cui inc series: vhs2-sip description: dc-dc converter date 11/08/2012 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 06/20/2006 1.01 new template applied, v-in nity branding removed 09/10/2012 1.02 updated spec. 11/08/2012 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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