cui .com date 01/19/2012 page 1 of 4 series: vskm-s10 series description: medical switching power supply model output voltage output current output power ripple and noise 1 ef ciency (vdc) max (a) max (w) typ (mvp-p) typ (%) vskm-s10-3r3u 3.3 2 6.6 50 70 VSKM-S10-5U 5 2 10 50 74 vskm-s10-9u 9 1.1 10 50 76 vskm-s10-12u 12 0.9 10 50 76 vskm-s10-15u 15 0.7 10 50 78 vskm-s10-24u 24 0.45 10 50 80 notes: 1. ripple and noise measured at 20 mhz bandwidth part number key vskm-s10 - xx u base number output voltage features ? up to 10 w continuous power ? compact board mount design ? universal input (85~264 vac / 120~370 vdc) ? single output from 3.3 to 24 v ? over current and short circuit protections ? full medical approvals ? efficiency up to 80% rohs
cui .com date 01/19/2012 page 2 of 4 cui inc series: vskm-s10 series description: medical switching power supply input parameter conditions/description min typ max units voltage 85 120 264 370 vac vdc frequency 47 63 hz input current at 110 vac at 230 vac 230 150 ma ma inrush current at 110 vac at 230 vac 10 20 a a external input fuse (recommended) slow blow, 250 v 2 a leakage current 230 v ac, 50 hz 0.1 ma output parameter conditions/description min typ max units line regulation 0.5 % load regulation 10 ~ 100% 1 % temperature coef cient 0.02 %/c hold-up time at 230 vac 50 ms voltage set point accuracy 3.3 v output all other models 3 2 % % switching frequency 60 khz protections parameter conditions/description min typ max units over current protection 110 % short circuit protection auto recovery with no damage from a short on any output safety & compliance parameter conditions/description min typ max units isolation voltage primary to secondary (for 1 minute) 4,000 vac safety approvals iec 60601-1, en 60601-1, ul 60601-1 safety class class ii emi/emc 1 en 55011 (level b), iec/en 61000-4-2 level 4 (8kv/15kv), iec/en 61000-4-3, iec/en 61000-4-4 level 4 (4kv), iec/en 61000-4-5 level 4 (2kv/4kv) rohs compliant yes mtbf 25c 300,000 hrs notes: 1. external emc application circuit is required environmental parameter conditions/description min typ max units operating temperature -25 70 c storage temperature -40 105 c case temperature 95 c operating humidity non-condensing 95 %
cui .com date 01/19/2012 page 3 of 4 cui inc series: vskm-s10 series description: medical switching power supply derating curves input voltage (vac) load (%) 100 80 60 50 40 20 70 85 110 125 210 225 240 264 ambient temperature (c) load (%) 100 80 60 50 40 20 -40 -30 -25 -20 -10 0 10 50 60 70 1. output power vs. ambient temperature 2. output power vs. input voltage 45.72 1.800 28.5 1.122 10.16 0.400 53.50 2.106 10.16 0.400 10.16 0.400 14.25 0.561 3 1 2 4 function ac(l) -vo 4 3 2 1 pin pin connections ac(n) +vo 3 4 1 2 1.20[0.047] 6.00 19.00 0.748 (typ) 0.236 2.106 53.50 1.00 0.039 (typ) recommended pcb footprint (top view) grid: 2.54 mm (0.10 inch) mechanical drawing mechanical parameter conditions/description min typ max units dimensions 2.1 x 1.12 x 0.75 inch (53.5 x 28.5 x 19.0 mm) case material ul94v-0 weight 47 50 53 g units: mm [inches] tolerance: 0.5 [0.02] pin section tolerance: 0.10 mm [0.004]
date 01/19/2012 page 4 of 4 cui inc series: vskm-s10 series description: medical switching power supply 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 +vo -vo l n nf c8 c6 c7 + *mov l n c1 c2 *fuse tvs rl *ntc typical application circuit external capacitors typical value (unit: f) model c1 c2 tvs vskm-s10-3r3u 220 f/10 v 0.1 f/50 v p6ke6.8a VSKM-S10-5U 220 f/10 v 0.1 f/50 v p6ke6.8a vskm-s10-9u 120 f/25 v 0.1 f/50 v p6ke12a vskm-s10-12u 120 f/25 v 0.1 f/50 v p6ke20a vskm-s10-15u 120 f/25 v 0.1 f/50 v p6ke20a vskm-s10-24u 68 f/35 v 0.1 f/50 v p6ke30a rev. description date 1.0 initial release 01/16/2012 the revision history provided is for informational purposes only and is believed to be accurate. revision history notes: 1. output ltering capacitor c1 is an electrolytic capacitor. it is recommended to use high frequency and low impedance electrolytic capacitors. for capacitance and current of capacitor please refer to manufacture?s datasheet. voltage derating of capacitor should be 80% or above. c2 is ceramic capacitor, it is used to lter high frequency noise. tvs is a recommended component to protect post-circuits (if converter fails). 2. mov is required to protect the device under surge. 2. it is recommended to use a 2a/250v slow blow fuse. external input ntc is recommended to use 5d-9. 3. if emc performance is required, it is recommended to add ?emc lter? at the input end (see emc application figure). c6: x capacitor, recommended parameter 0.1 f/275v; c7,c8: y capacitor, recommended parameter 2200pf/400v; nf: common model choke, recommended inductance is about 10mh-30mh.
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