cui .com date 01/27/2012 page 1 of 5 series: vfsd1-sip series description: dc-dc converter date 01/27/2012 page 1 of 5 features ? 1 w isolated output ? industry standard pinout ? unregulated ? single output (3.3~24 v) ? small footprint ? 3,000 v isolation ? short circuit protection ? temperature range (-40~85c) ? high efficiency to 83% rohs model input voltage output voltage output current output power ripple noise ef ciency ul60950 range (vdc) (vdc) min (ma) max (ma) max (w) max (mvp-p) typ (%) vfsd1-s3.3-s3.3-sip 3 ~ 3.6 3.3 31 303 1 100 69 no vfsd1-s3.3-s5-sip 3.3 ~ 3.6 5 20 200 1 100 74 no vfsd1-s5-s3.3-sip 4.5 ~ 5.5 3.3 30 303 1 100 73 no vfsd1-s5-s5-sip 4.5 ~ 5.5 5 20 200 1 100 72 yes vfsd1-s5-s9-sip 4.5 ~ 5.5 9 12 111 1 100 76 yes vfsd1-s5-s12-sip 4.5 ~ 5.5 12 9 83 1 100 79 yes vfsd1-s5-s15-sip 4.5 ~ 5.5 15 7 67 1 100 78 yes vfsd1-s5-s24-sip 10.8 ~ 13.2 24 5 42 1 150 79 no vfsd1-s12-s5-sip 10.8 ~ 13.2 5 20 200 1 100 70 yes vfsd1-s12-s9-sip 10.8 ~ 13.2 9 12 111 1 100 75 yes vfsd1-s12-s12-sip 10.8 ~ 13.2 12 9 83 1 100 78 yes vfsd1-s12-s15-sip 10.8 ~ 13.2 15 7 67 1 100 79 yes vfsd1-s12-s24-sip 10.8 ~ 13.2 24 5 42 1 150 79 no vfsd1-s24-s3.3-sip 21.6 ~ 26.4 3.3 31 303 1 100 70 no vfsd1-s24-s5-sip 21.6 ~ 26.4 5 20 200 1 100 71 yes vfsd1-s24-s9-sip 21.6 ~ 26.4 9 12 111 1 100 76 yes vfsd1-s24-s12-sip 21.6 ~ 26.4 12 9 83 1 100 78 yes vfsd1-s24-s15-sip 21.6 ~ 26.4 15 7 67 1 100 80 yes VFSD1-S24-S15-SIP-A 21.6 ~ 26.4 15 7 67 1 150 83 no vfsd1-s24-s24-sip 21.6 ~ 26.4 24 5 42 1 150 77 no note: 1. ripple and noise measured at 20 mhz bw
cui .com date 01/27/2012 page 2 of 5 cui inc series: vfsd1-sip series description: dc-dc converter input parameter conditions/description min typ max units operating input voltage 3 4.5 10.8 13.5 21.6 3.3 5 12 15 24 3.6 5.5 13.2 16.5 26.4 vdc vdc vdc vdc vdc output parameter conditions/description min typ max units line regulation for vin change of 1%, full load 3.3 v output all other models 1.5 1.2 % % load regulation 10% to 100% full load, nominal line VFSD1-S24-S15-SIP-A all other models 2 10 3 15 % % voltage accuracy see tolerance envelope graph 1 3 % switching frequency 100% load, input voltage range 100 khz temperature coef cient 0.03 %/c protections parameter conditions/description min typ max units short circuit protection supply voltage must be discontinued at end of short circuit duration safety and compliance parameter conditions/description min typ max units isolation voltage tested for 1 minute at 1 ma max. 3,000 vdc isolation resistance at 500 vdc 1,000 m isolation capacitance input to output, 100 khz / 1 v 1,000 pf rohs compliant yes mtbf 3,500,000 hours environmental parameter conditions/description min typ max units case operating temperature -40 85 c storage temperature -55 125 c storage humidity non-condensing 95 % temperature rise 100% load 15 25 c lead temperature 1.5 mm from the case for 10 seconds 300 c note: 1. all speci cations measured at ta=25c, humidity <75%, nominal input voltage and rated output load unless otherwise speci ed.
cui .com date 01/27/2012 page 3 of 5 cui inc series: vfsd1-sip series description: dc-dc converter 19.60 10.00 4.10 1.25 2.00 15.24 6.00 12 5 7 2.54 2.54 12 5 7 recommended footprint bottom view mechanical drawing mechanical parameter conditions/description min typ max units dimensions 0.77 x 0.24 x 0.39 inch (19.6 x 6.0 x 10.0 mm) case material plastic (ul94-v0) weight 2.1 g 100 80 60 40 20 ambient temperature (c) load (%) -40 -20 0 20 40 60 85 105 120 derating curves pin connections 1 +vin 2 -vin 5 -vout 7 +vout units: mm all pins on a 2.54mm pitch all pin diameters are 0.50mm
cui .com date 01/27/2012 page 4 of 5 cui inc series: vfsd1-sip series description: dc-dc converter 1. requirement on output load to ensure this module can operate ef ciently and reliably, during operation, the minimum output load could not be less than 10% of the full load. if the actual output power is very small, please connect a resistor with proper resistance at the output end in parallel to increase the load, or use our company?s products with a lower rated output power (e_s-w25&f_s-w25). 2. overload protection under normal operating conditions, the output circuit of these products has no protection against overload. the simplest method is to connect a self-recovery fuse in series at the input end or add a circuit breaker to the circuit. 3. recommended testing and application 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). it should also be noted that the inductance and the frequency of the ?lc? ltering network should be staggered with the dc/dc frequency to avoid mutual interference. 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 an d reliable operation is ensured, the recommended capacitance of its lter capacitor sees (table 1). 4. output voltage regulation and over-voltage protection circuit the simplest device for output voltage regulation, over-voltage and over-current protection is a linear voltage regulator with overheat protection that is connected to the input or output end in series (figure 2). 5. no parallel connection or plug and play vin (vdc) cin ( f) single vout (vdc) cout ( f) dual vout (vdc) cout ( f) 3.3, 5 4.7 3.3, 5 10 5 4.7 12 2.2 9.0 4.7 9 2.2 15 2.2 12 2.2 12 1.0 24 1.0 15, 24 1.0 15 0.47 external capacitor table (table 1) figure 1 application notes figure 2
date 01/27/2012 page 5 of 5 cui inc series: vfsd1-sip series 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 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 10/04/2007 the revision history provided is for informational purposes only and is believed to be accurate. revision history
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