VFB600-D48-S24

Additional Resources: Product Page | 3D Model | PCB Footprint date 07/13/2022 page 1 of 12 SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • • up to 700 W isolated output industry standard full brick package 2:1 input range (18~36 Vdc, 36~75 Vdc) single output from 12~48 Vdc 1,500 Vdc isolation over current, over temperature, over voltage, and short circuit protections • remote on/off • efficiency up to 92% MODEL input voltage output voltage output current output power ripple and noise1 efficiency typ (Vdc) range (Vdc) (Vdc) max (A) max (W) max (mVp-p) typ (%) VFB600-D24-S12 24 18~36 12 50 600 120 88 VFB600-D24-S24 24 18~36 24 25 600 240 90 VFB600-D24-S28 24 18~36 28 21.5 600 280 90 VFB600-D24-S32 24 18~36 32 19 600 320 91 VFB600-D24-S48 24 18~36 48 12.5 600 480 91 VFB600-D48-S12 48 36~75 12 50 600 120 90 VFB600-D48-S24 48 36~75 24 25 600 240 92 VFB600-D48-S28 48 36~75 28 25 700 280 91 VFB600-D48-S32 48 36~75 32 19 600 320 92 VFB600-D48-S48 48 36~75 48 12.5 600 480 92 Notes: 1. Ripple and noise measured at full load, 20 MHz BW with 10 μF tantalum and 1 μF ceramic capacitor across the output. 2. An external input capacitor of 220 μF is recommended to reduce input ripple voltage. 3. All specifications measured at nominal line, full load, and 25°C unless otherwise specified. PART NUMBER KEY VFB600 - DXX - SXX X Base Number Input Voltage cui.com Output Voltage Remote On/Off Control "blank" = negative logic P = positive logic Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 07/13/2022 │ page 2 of 12 INPUT parameter conditions/description operating input voltage 24 Vdc input models 48 Vdc input models min typ max units 18 36 24 48 36 75 Vdc Vdc 24 Vdc input power up power down 17 16 Vdc Vdc 48 Vdc input power up power down 35 33 Vdc Vdc 24 Vdc input power up power down 38 40 Vdc Vdc 48 Vdc input power up power down 77 80 Vdc Vdc under voltage shutdown over voltage shutdown start-up time positive logic on/off 1 negative logic ms models OFF (1.0~10 mA) models ON (1.0~10 mA) models OFF (0~0.01 mA) filter pi filter input fuse 60 A time delay fuse for 24 Vin models, 30 A time delay fuse for 48 Vin models Note: 250 models ON (0~0.01 mA) 1. See application notes. OUTPUT parameter conditions/description min output capacitance2 12 Vdc output models all other models 470 470 line regulation2 load regulation 2 typ max units 10,000 5,000 μF μF from low line to high line ±0.2 % from full load to no load ±0.5 % ±1.5 % voltage accuracy2 load share accuracy from 50~100% load ±10 adjustability 60 switching frequency 48 Vdc input: 12 Vdc, 28 Vdc, 32 Vdc models all other models transient response 25% load step change 300 250 temperature coefficient power good (IOC) Vout ready: low level, sink current Vout not ready: open drain output, applied voltage auxiliary output voltage/current 10 ±3 Vdc, 20 mA max. Note: % 110 % kHz kHz 500 μs ±0.03 %/°C 20 50 mA V max units 150 % 2. Minimum capacitor values are required on the output to maintain the specified regulation. PROTECTIONS parameter conditions/description short circuit protection continuous min over current protection 110 over voltage protection over temperature protection typ 115 shutdown 140 110 cui.com % °C Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 07/13/2022 │ page 3 of 12 SAFETY AND COMPLIANCE parameter conditions/description isolation voltage for 1 minute, input to output, input to case, or output to case min isolation resistance UL 60950-1 MTBF as per MIL-HDBK-217F at full load, GB, 25 °C RoHS 2011/65/EU (CE) max units 1,500 Vdc 10 MΩ isolation capacitance safety approvals typ 4,000 pF 450,000 hours ENVIRONMENTAL parameter conditions/description min operating case temperature see derating curve storage temperature humidity typ max units -40 100 °C -55 105 °C 95 % max units 260 °C max units non-condensing SOLDERABILITY parameter conditions/description wave soldering see wave soldering profile Notes: 1. 2. 3. 4. 5. min typ Soldering materials: Sn/Cu/Ni Ramp up rate during preheat: 1.4°C/s (from 50°C to 100°C) Soaking temperature: 0.5°C/s (from 100°C to 130°C), 60±20 seconds Peak temperature: 260°C, above 250°C for 3~6 seconds Ramp down rate during cooling: -10°C/s (from 260°C to 150°C) MECHANICAL parameter conditions/description min dimensions 116.8 x 61.0 x 12.7(4.60 x 2.40 x 0.50 inch) case material aluminum baseplate with plastic case weight typ mm 220 cui.com g Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 07/13/2022 │ page 4 of 12 MECHANICAL DRAWING units: mm[inch] tolerance: X.X = ±0.5[±0.02] X.XX = ±0.25[±0.010] pin diameter tolerance: ±0.1[±0.004] 104.11 4.099 100.30 3.949 96.49 3.799 92.68 3.649 88.87 3.499 +Vin 3 -ON/OFF 4 +ON/OFF 5 +Vo 6 +Vo 7 +Vo 8 -Vo 9 -Vo 10 -Vo 11 -S 12 +S 13 TRIM 14 PC/NC 15 IOC 16 AUX 2.06 0.081 (8 PLCS) 43.20 1.701 10 1 8 7 3 4 6 22.88 0.901 5 19.07 0.751 5.05 0.199 57.17 2.251 9 2 33.04 1.301 12 11 -Vin 2 13 1 14 Function 1.02 0.040 (8 PLCS) 85.06 3.349 16 Pin 3.50 0.138 THROUGH HOLE (4 PLCS) 15 PIN CONNECTIONS 106.70 4.201 7.20 0.283 (TYP) 12.70 0.500 116.80 4.598 2.4mm P LAT E D T HR OUG H HOLE 4.8mm P AD S IZE 3.5mm NON T HR OUG H HOLE 1.4mm P LAT E D T HR OUG H HOLE 2.8mm P AD S IZE PCB Layout Top View cui.com 10.16 0.400 35.56 1.400 61.00 2.402 22.86 0.900 50.80 2.000 Additional Resources: Product Page | CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER 3D Model | PCB Footprint date 07/13/2022 │ page 5 of 12 DERATING CURVES cui.com Additional Resources: Product Page | CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER 3D Model | PCB Footprint date 07/13/2022 │ page 6 of 12 DERATING CURVES (CONTINUED) cui.com Additional Resources: Product Page | CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER 3D Model | PCB Footprint date 07/13/2022 │ page 7 of 12 EFFICIENCY CURVES cui.com Additional Resources: Product Page | CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER 3D Model | PCB Footprint date 07/13/2022 │ page 8 of 12 EFFICIENCY CURVES (CONTINUED) cui.com Additional Resources: Product Page | CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER 3D Model | PCB Footprint date 07/13/2022 │ page 9 of 12 APPLICATION NOTES 1. Parallel Operation The VFB600 series is designed for parallel operation. When in parallel the load current can be shared equally between the two modules by connecting their PC pins. The VFB600 can be setup in two different modes to achieve parallel operation. The standard parallel operation is suitable when load cannot be handled by a single unit, whereas the N+1 redundant operation is suitable for loads when backup power is required. Figure 1 Standard Parallel Connection Figure 2 Parallel Connection With Programmed And Adjustable Output Figure 3 N+1 Redundant Connection Figure 4 N+1 Redundant Connection With Programmed Output And Adjustable Output Voltage cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 07/13/2022 │ page 10 of 12 APPLICATION NOTES (CONTINUED) 2. Output Voltage Trimming Leave open if not used. Figure 5 External Resistors Trim-Up/Trim-Down Formulas 1.24 ×( Vf = 7.68 +( Rt ×33 ) Rt + 33 Rt ×33 ) Rt + 33 Vout = (Vo + VR) × Vf Note: Rt = 6.8 kΩ VO is the nominal output voltage VOUT is the desired output voltage (up or down) VR is the trim resistor in kΩ Figure 6 External DC Voltage Trim-Up/Trim-Down Formula Vout = VT × VO Note: VT is the trim terminal voltage VO is the nominal output voltage VOUT is the desired output voltage (up or down) 3. ON/OFF Control The converter's ON/OFF function can be controlled from the input side or from the output side. The maximum current through the ON/OFF pin is 10 mA. The resistor value has to be set appropriately to avoid the maximum current through the ON/OFF pins. The remote on/off control has to be connected for the converter to operate. (A) Controlling the ON/OFF terminal from the input side. Recommended R1 value is 30 kΩ (0.5 W) for 48VIN and 15 kΩ (0.25 W) for 24VIN (B) Figure 7 Controlling the ON/OFF terminal from the output side. Recommended R2 value is 5.1 kΩ (0.1 W) Figure 8 cui.com Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 07/13/2022 │ page 11 of 12 APPLICATION NOTES (CONTINUED) 4. IOC Signal Normal and abnormal operation of the converter can be monitored by using the I.O.C signal. Output of this signal monitor is located at the secondary side and is open collector output, you can use the signal by the internal aux power supply or the the external DC supply as the following figures. the ground reference is the –Sense. This signal is LOW when the converter is normally operating and HIGH when the converter is disabled or when the converter is abnormally operating. Figure 9 Internal AUX Power Figure 10 External DC Power 5. Output Remote Sensing This series has the capability to remotely sense both lines of its output. This feature moves the effective output voltage regulation point from the output of the unit to the point of connection of the remote sense pins. This feature automatically adjusts the real output voltage in order to compensate for voltage drops in distribution and maintain a regulated voltage at the point of load. The voltage range of this is: [(+Vout) – (-Vout)] – [(+Sense) – (-Sense)] ≤ 10% of the Vout nominal. If the sense feature is not used, the sense pins should be connected locally to the respective Vout pins. Please note that although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. Figure 11 6. Test Configuration Figure 12 Table 1 Recommended External components cui.com C1 220 μF/100 V C2 470 μF/100 V Additional Resources: Product Page | 3D Model | PCB Footprint CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 07/13/2022 │ page 12 of 12 REVISION HISTORY rev. description date 1.0 initial release 06/27/2011 1.02 adjustability note added, V-Infinity branding removed 08/07/2012 1.03 updated spec 04/01/2013 1.04 added UL approvals to 24 Vdc and 48 Vdc output models 03/05/2014 1.05 added application note information 04/10/2017 1.06 product image and company logo updated 02/15/2021 1.07 derating curves, efficiency curves and circuit figures updated 09/14/2021 PN key updated 07/13/2022 1.08 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.