date 01/19/2012 page 1 of 4 SERIES: VSKM-S10 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY 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 MODEL VSKM-S10-3R3U output voltage output current output power ripple and noise1 efficiency (Vdc) max (A) max (W) typ (mVp-p) typ (%) 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 - XXU Base Number Output Voltage cui.com CUI Inc │ SERIES: VSKM-S10 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY date 01/19/2012 │ page 2 of 4 INPUT parameter conditions/description min voltage frequency max units 85 120 typ 264 370 Vac Vdc 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 line regulation load regulation typ max ±0.5 10 ~ 100% temperature coefficient units % ±1 % 0.02 %/°C hold-up time at 230 Vac 50 ms voltage set point accuracy 3.3 V output all other models ±3 ±2 % % 60 kHz switching frequency PROTECTIONS parameter conditions/description min typ over current protection short circuit protection max units 110 % max units auto recovery with no damage from a short on any output SAFETY & COMPLIANCE parameter conditions/description min isolation voltage primary to secondary (for 1 minute) safety approvals IEC 60601-1, EN 60601-1, UL 60601-1 typ 4,000 Vac safety class class II EMI/EMC1 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 25°C 300,000 hrs Notes: 1. external EMC application circuit is required ENVIRONMENTAL parameter conditions/description min typ max units °C operating temperature -25 70 storage temperature -40 105 °C 95 °C 95 % case temperature operating humidity non-condensing cui.com CUI Inc │ SERIES: VSKM-S10 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY date 01/19/2012 │ page 3 of 4 DERATING CURVES ≈ 100 100 80 Load (%) Load (%) 2. output power vs. input voltage ≈ 1. output power vs. ambient temperature 60 50 40 20 80 60 50 40 -40 -30 -25 -20 -10 0 10 ≈ ≈ 20 50 60 70 70 Ambient Temperature (°C) 85 110 125 210 225 240 264 Input Voltage (Vac) MECHANICAL parameter conditions/description dimensions 2.1 x 1.12 x 0.75 inch (53.5 x 28.5 x 19.0 mm) case material UL94V-0 weight min typ max units 47 50 53 g MECHANICAL DRAWING units: mm [inches] tolerance: ±0.5 [±0.02] pin section tolerance: ±0.10 mm [±0.004] 1.20[0.047] 53.50 2.106 1 3 19.00 0.748 4 2 1.00 0.039 (TYP) 6.00 0.236 (TYP) 53.50 2.106 10.16 0.400 recommended PCB footprint (top view) grid: 2.54 mm (0.10 inch) 2 4 10.16 0.400 1 3 10.16 0.400 28.5 1.122 14.25 0.561 45.72 1.800 cui.com PIN CONNECTIONS PIN FUNCTION 1 AC(N) AC(L) 2 3 +Vo 4 -Vo CUI Inc │ SERIES: VSKM-S10 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY date 01/19/2012 │ page 4 of 4 TYPICAL APPLICATION CIRCUIT *Fuse *NTC L L +Vo C1 C2 TVS C7 + NF C6 *MOV RL C8 -Vo N N EXTERNAL CAPACITORS TYPICAL VALUE (Unit: μF) MODEL C1 C2 TVS VSKM-S10-3R3U 220 μF/10 V 0.1 μF/50 V P6KE6.8A VSKM-S10-5U 220 μF/10 V 0.1 μF/50 V P6KE6.8A VSKM-S10-9U 120 μF/25 V 0.1 μF/50 V P6KE12A VSKM-S10-12U 120 μF/25 V 0.1 μF/50 V P6KE20A VSKM-S10-15U 120 μF/25 V 0.1 μF/50 V P6KE20A VSKM-S10-24U 68 μF/35 V 0.1 μF/50 V P6KE30A Notes: 1. Output filtering 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 filter 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 filter” at the input end (see EMC Application Figure). C6: X capacitor, recommended parameter 0.1μF/275V; C7,C8: Y capacitor, recommended parameter 2200pF/400V; NF: common model choke, recommended inductance is about 10mH-30mH. REVISION HISTORY 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. Headquarters 20050 SW 112th Ave. Tualatin, OR 97062 800.275.4899 Fax 503.612.2383 cui.com [email protected] 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.