For more information, please visit the product page. date 08/17/2012 page 1 of 5 SERIES: VOF-25 │ DESCRIPTION: AC-DC POWER SUPPLY U up to 25 W continuous power compact size universal input (85~264 Vac) single output from 3.3~24 V user trimmable output voltage 3000 V isolation over current, over voltage, and short circuit protections UL/cUL and TUV 60950-1 safety approvals efficiency up to 82% RoHS VOF-25-3.3 output current output power ripple1 and noise efficiency (Vdc) max (A) max (W) max (mVp-p) typ (%) 4.4 15 50 70 4.4 22 50 73 3.0 23 75 73 2.7 24 90 77 2.0 24 120 80 15 1.6 24 150 80 24 1.0 24 240 82 3.3 VOF-25-5 5 VOF-25-7.5 7.5 VOF-25-9 9 12 N VOF-25-12 VOF-25-15 VOF-25-24 1. Ripple & noise are measured at 20 MHz BW with 0.1 μF ceramic cap and a 10 μF electrolytic capacitors on the output and the two earth ground pads are connected to input earth ground. O Notes: output voltage TI MODEL N • • • • • • • • • ED FEATURES VOF-25 - XX Base Number Output Voltage D IS C PART NUMBER KEY cui.com For more information, please visit the product page. CUI Inc │ SERIES: VOF-25 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 2 of 5 INPUT conditions/description min voltage frequency current at 110 Vac at 220 Vac inrush current at 110 Vac, full load, cold start at 220 Vac, full load, cold start input fuse built-in, non-user serviceable max units 85 120 264 375 Vac Vdc 47 63 Hz 0.7 0.35 conditions/description line regulation high line to low line at full load load regulation full load to 10% load min temperature coefficient hold-up time 115 Vac at full load adjustability adjustable with built-in trim pot TI conditions/description over voltage protection clamped by TVS over current protection automatically recovers short circuit protection protected, long term short circuit may reduce reliability min % ±1 % %/°C ms +5 % 50 55 kHz typ max units 115 105 % %Io min 3,000 1,500 1,500 Vac Vac Vac 50 MΩ O conditions/description input to output at 500 Vdc at 25°C nom max units TUV EN 60950, CE, UL/cUL 60950-1 IS C EMI/EMC units primary to secondary for 1 minute primary to transformer core for 1 minute primary to ground for 1 minute SAFETY & COMPLIANCE safety approvals max N parameter isolation resistance A A ±0.05 -5 45 parameter 20 40 16 switching frequency PROTECTIONS typ A A ±0.5 N parameter U OUTPUT isolation voltage typ ED parameter FCC class B, EN 55022 class B leakage current RoHS compliant yes MTBF according to MIL-HDBK-217F 1.5 250,000 mA hours ENVIRONMENTAL parameter conditions/description operating temperature see derating curve min nom units 60 °C -20 85 °C operating humidity non-condensing 20 90 % storage humidity non-condensing 20 95 % D storage temperature max 0 operating altitude 10,000 3,000 ft m storage altitude 30,000 9,000 ft m cui.com For more information, please visit the product page. CUI Inc │ SERIES: VOF-25 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 3 of 5 MECHANICAL parameter conditions/description dimensions 3.500 x 2.008 x 0.9803 (88.9 x 51 x 24.9 mm) min typ max inch 0.09 free air convection or forced air (see derating curves below) DERATING CURVES 60 40 20 U 1 100 Load factor ( %) 2 80 80 60 40 20 0 0 0 10 20 30 40 50 60 40 20 10 30 20 40 50 60 0 Ambient temperature (°C) TI 2 80 0 0 60 Ambient temperature (°C) 1 100 N 100 2. output power vs. input voltage all models b. all other models Load factor ( %) Load factor ( %) 1. output power vs. ambient temperature a. 3.3, 5 V models Convection 3 Forced air (0.5m /min) (18 CFM) 1 3 Forced air (0.5m /min) (18 CFM) N MATING CONNECTORS conditions/description ac input (CN1) mates with Molex housing 09-50-3031 with Molex 2878 series crimp contact dc output (CN2) mates with Molex housing 09-50-3041 with Molex 2878 series crimp contact O parameter IS C MOUNTING METHOD D kg ED weight cooling method units Horizontal (performance evaluations conducted under this mounting method) cui.com 85 90 110 Input Voltage Vac 220 264 For more information, please visit the product page. CUI Inc │ SERIES: VOF-25 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 4 of 5 MECHANICAL DRAWING 90.0 3.54 81.7 3.22 U N CN1 42.5 1.67 N 3 51.0 2.01 VADJ TI no pin 3.5 (4 PLCS) MOUNTING HOLE C 1.6 0.06 N 2 20.32 0.80 O L 4 3 CN2 2 1 3.0 MAX (LEAD) D IS C 1 CN2 3 2 1 CN1 ED units: mm [inches] tolerance: ±0.3 [±0.01] cui.com 1 -Vo 2 -Vo 3 +Vo 4 +Vo For more information, please visit the product page. CUI Inc │ SERIES: VOF-25 │ DESCRIPTION: AC-DC POWER SUPPLY date 08/17/2012 │ page 5 of 5 REVISION HISTORY description date 1.0 initial release 04/03/2009 1.01 corrected CN1 connector designation on mech drawing 1.02 dimension added to drawing 1.03 new template applied 1.04 added MTBF data 1.05 V-Infinity branding removed ED rev. 02/16/2010 05/02/2011 05/13/2011 09/20/2011 08/17/2012 D IS C O N TI N U 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.