date 09/20/2011 page 1 of 5 SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY FEATURES • • • • • • • • • Up to 45 W continuous power Industry standard footprint Universal input (85~264 Vac) Single output from 3.3~48 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 88% RoHS MODEL VOF-45-3.3 VOF-45-5 VOF-45-7.5 VOF-45-9 output voltage output current output power ripple1 and noise efficiency (Vdc) max (A) max (W) max (mVp-p) typ (%) 3.3 6.0 20 50 74 5 6.0 30 50 78 7.5 5.0 38 75 78 9 4.4 40 90 82 VOF-45-12 12 3.7 44 120 84 VOF-45-15 15 3.0 45 150 85 VOF-45-24 24 1.9 46 240 86 VOF-45-48 48 0.93 45 480 88 Notes: 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. PART NUMBER KEY VOF-45 - XX Base Number Output Voltage cui.com CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 09/20/2011 │ page 2 of 5 INPUT parameter conditions/description min voltage frequency input current 110 Vac 220 Vac inrush current 110 Vac, full load, cold start 220 Vac, full load, cold start input fuse built-in, non-user serviceable max units 85 120 typ 264 375 Vac Vdc 47 63 Hz 1 0.5 A A 25 50 A A max units OUTPUT parameter conditions/description line regulation high line to low line at full load load regulation full load to 10% load min typ ±0.5 temperature coefficient hold-up time 115 Vac at full load 8 adjustability adjustable with built-in trim pot -5 switching frequency % ±1 % ±0.05 %/°C ms +5 60 % kHz OUTPUT parameter conditions/description min over voltage protection clamped by TVS over current protection automatically recovers short circuit protection protected, long term short circuit may reduce reliability typ max 115 105 units % %Io SAFETY & COMPLIANCE parameter conditions/description isolation voltage primary to secondary for 1 minute primary to transformer core for 1 minute primary to ground for 1 minute min isolation resistance input to output at 500 Vdc at 25°C safety approvals TUV EN60950, CE, UL/cUL 60950-1 EMI/EMC FCC class B, EN55022 class B typ max Vac Vac Vac 50 MΩ leakage current 1.5 RoHS compliant yes MTBF according to MIL-HDBK-217F units 3,000 1,500 1,500 250,000 mA hours ENVIRONMENTAL parameter conditions/description operating temperature see derating curve min storage temperature max units 0 typ 60 °C -20 85 °C operating humidity non-condensing 20 90 % storage humidity non-condensing 20 95 % operating altitude 10,000 3,000 ft m storage altitude 30,000 9,000 ft m cui.com CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 09/20/2011 │ page 3 of 5 MECHANICAL parameter conditions/description dimensions 4 x 2 x 1.44 (102 x 51 x 36.6 mm) min typ max inch weight 0.17 cooling method units kg free air convection or forced air (see derating curves below) DERATING CURVES 2 80 1 60 40 20 0 100 Load factor ( %) 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, 7.5 V models 80 60 40 20 0 0 10 20 30 40 50 2 Convection 3 Forced air (0.5m /min) (18 CFM) 80 60 40 20 0 0 60 Ambient temperature (°C) 1 100 10 30 20 40 50 60 0 Ambient temperature (°C) 1 3 Forced air (0.5m /min) (18 CFM) MATING CONNECTORS parameter 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 MOUNTING METHOD Horizontal (performance evaluations conducted under this mounting method) cui.com 85 90 110 Input Voltage Vac 220 264 CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 09/20/2011 │ page 4 of 5 MECHANICAL DRAWING tolerance: ±0.3mm unless otherwise specified 102.0 4.02 94.01 3.70 1 L 2 no pin 3 N CN2 LED CN1 CN1 51.0 2.01 3 2 1 4 3 CN2 2 1 43.21 1.70 VADJ 3.5 (4 PLCS) MOUNTING HOLE 32.0 1.26 B 1.6 0.06 3.0 MAX (LEAD) cui.com 1 -Vo 2 -Vo 3 +Vo 4 +Vo CUI Inc │ SERIES: VOF-45 │ DESCRIPTION: AC-DC POWER SUPPLY date 09/20/2011 │ page 5 of 5 REVISION HISTORY rev. description date 1.0 initial release 04/03/2009 1.01 dimension added to drawing 05/02/2011 1.02 applied new spec template 05/13/2011 added MTBF data 09/20/2011 1.03 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.