VOF-S25B-48

Additional Resources: Product Page | 3D Model | PCB Footprint date 04/28/2021 page 1 of 7 SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY FEATURES • • • • • • • • • universal input range (90 ~ 264 Vac) option to support large transient loads (2x rated current)4 Class B emissions (EN55032/CISPR/FCC) certified to IEC/EN/UL 62368-1 designed to meet IEC/EN 60335 short circuit protection over voltage protection < 100 mW no-load power consumption Class II MODEL output voltage output current output power ripple and noise1 efficiency2 (Vdc) min (A) max (A) max (W) max (mVp-p) typ (%) 5 0 4.00 20 50 81 VOF-S25B-12 12 0 2.10 25 120 84 VOF-S25B-15 15 0 1.67 25 150 85 VOF-S25B-24 24 0 1.05 25 240 86 VOF-S25B-36 36 0 0.70 25 360 87 VOF-S25B-48 48 0 0.52 25 480 87 VOF-S25B-5 Notes: 1. 2. 3. 4. At full load, nominal input, 20 MHz bandwidth oscilloscope, with 1 µF ceramic and 10 µF electrolytic capacitors on the output. At 230 Vac, full load, 25°C. All specifications are measured at Ta=25°C, nominal input voltage, and 75% rated output load unless otherwise specified. Parts with the “-PB” suffix can sustain 2 times the rated output load for 10 seconds (MAX) and 10% duty cycle (MAX). This functionality requires a 33 µF / 400 V capacitor connected between pins BC+ and BC-. See Power Boost Section below for more details. PART NUMBER KEY VOF-S25B - XX - XX Base Number Output Voltage cui.com “Blank” = No Power Boost PB = Power Boost Function Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY date 04/28/2021 │ page 2 of 7 INPUT parameter conditions/description min voltage frequency current at 100 Vac, full load inrush current at 240 Vac, cold start, 25°C leakage current at 264 Vac max units 90 120 typ 264 370 Vac Vdc 47 63 Hz 700 mA 60 A 0.25 mA OUTPUT parameter conditions/description capacitive load 5 Vdc output models 12 Vdc output models 15 Vdc output models 24 Vdc output models 36 Vdc output models 48 Vdc output models initial set point accuracy min typ max units 81,000 40,900 19,800 6,600 4,000 2,170 μF μF μF μF μF μF 5 Vdc output model all other models ±2 ±1 % % line regulation measured at high line to low line at full load ±1 % load regulation measured at 10%~100% load ±1 % start-up time hold-up time 3 at 115 Vac switching frequency temperature coefficient s 8 ms 65 kHz ±0.05 %/°C PROTECTIONS parameter conditions/description over voltage protection TVS to clamp output votlage 5 Vdc output models 12 Vdc output models 15 Vdc output models 24 Vdc output models 36 Vdc output models 48 Vdc output models short circuit protection hiccup, auto recovery min typ max 6.8 15.0 18.0 30.0 47.0 56.0 units Vdc Vdc Vdc Vdc Vdc Vdc SAFETY & COMPLIANCE parameter conditions/description isolation voltage input to output for 1 minute min isolation resistance safety approvals certified to IEC/EN/UL 62368-1 designed to meet IEC/EN 60335 safety class Class II conducted emissions EN55032, EN61000-6-3:2012, Class B, 47 CFR FCC Part 15 Subpart B (Class B) radiated emissions EN55032, EN61000-6-3:2012, Class B, 47 CFR FCC Part 15 Subpart B (Class B) harmonic current emissions EN61000-3-2:2014 voltage fluctuations & flicker EN61000-3-3:2013 cui.com typ max units 3,000 Vac 100 MΩ Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY date 04/28/2021 │ page 3 of 7 SAFETY & COMPLIANCE (CONTINUED) parameter conditions/description ESD IEC61000-4-2:2008, air discharge: ± 8 kV, contact discharge: ± 4 kV radiated immunity IEC61000-4-3:2010 EFT/burst IEC61000-4-4:2012, ± 0.5 kV, ± 1 kV, ± 2 kV surge IEC61000-4-5:2014, L-N: ± 0.5 kV, ± 1 kV conducted immunity IEC61000-4-6:2013 power frequency magnetic field IEC61000-4-8:2009 voltage dips & interruptions IEC61000-4-11:2004, Dip: 30%, 10 ms, Dip: 60%, 100 ms, Dip: >95%, 5,000 ms MTBF as per MIL-HDBK-217F, at 115 Vac, 25°C, GB RoHS yes Notes: min typ max 500,000 units hours 4. The power supply is considered a component which will be installed into final equipment. The final equipment still must be tested to meet the necessary EMC directives. ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curves -30 70 °C -30 85 °C 93 % 5,000 m storage temperature operating humidity typ non-condensing altitude vibration as per MIL-STD-810F Table 514.5C-VIII; 15~2000 Hz for 1 hour on each axis for 3 hours 4 G shock as per MIL-STD-810F Table 516.5, Table 516.5-1; for 10 ms on each axis 3 times 75 G cui.com Additional Resources: Product Page | CUI Inc │ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY 3D Model | PCB Footprint date 04/28/2021 │ page 4 of 7 DERATING CURVES cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY date 04/28/2021 │ page 5 of 7 MECHANICAL parameter conditions/description dimensions 2.00 x 1.10 x 0.980 (50.80 x 27.94 x 24.90 mm) min typ max units inches weight 50 g MECHANICAL DRAWING units: inch [mm] tolerance: ±0.020[±0.50] Standard Power Boost PIN CONNECTIONS PIN Function Standard Power Boost 1 AC (L) AC (L) 2 AC (N) AC (N) 3 +Vo +Vo 4 -Vo -Vo 5 No Pin BC+ 6 No Pin BC- EMC RECOMMENDATIONS When used in a Class I system implementation (utilizing an Earth Ground connection as depicted in the schematic below), the VOF-S25B series requires additional inductance and Y-Caps to meet EN55032 Class B. These additional components are not required in a Class II implementation where no Earth Ground is present. CHOKE Specification Inductance Duplex Winding/Turns UU9.8 R12K 10mH 2-UEW Φ 0.27*85Ts Y-CAP Manufacturers SEND POWER Subclass Withstand Voltage Capacitance Manufacturers Y1 CAP 250 V (min.) 1000 pF (typ.) TDK cui.com Additional Resources: Product Page | CUI Inc │ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY 3D Model | PCB Footprint date 04/28/2021 │ page 6 of 7 POWER BOOST The VOF-S25B Series has an ordering option called Power Boost (“-PB” suffix), which can double the rated output power provided to the load for a maximum of 10 seconds and repeated duty cycle of 10%. This functionality requires a 33 uF / 400 V capacitor to be connected between the BC+ and BC- pins as depicted in the schematic below. This external capacitor is not required if the VOF-S25B is operating from 220 Vac mains. When utilizing the Power Boost Feature, care must be taken not to thermally overstress the unit. The combined load (nominal plus peak) should not exceed 65% of the full load rating when averaged out over time. INSTALLATION INSTRUCTIONS The mounting holes should all be 1.5 mm in diameter. A minimum of 4 mm clearance is required for all four sides of the unit and a minimum of 5 mm clearance is required above the top surface of the unit. cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VOF-S25B │ DESCRIPTION: AC-DC POWER SUPPLY date 04/28/2021 │ page 7 of 7 REVISION HISTORY rev. description date 1.0 initial release 02/13/2020 1.01 updates to mechanical & power boost sections 04/08/2020 1.02 circuit figures and derating curves updated 04/28/2021 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 techsupport@cui.com 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.