Additional Resources: Product Page 3D Model PCB Footprint date 04/10/2017 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% input output output output ripple efficiency MODEL 1 voltage voltage current power and noise typ range max max max typ (Vdc) (Vdc) (Vdc) (A) (W) (mVp-p) (%) 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 F tantalum and 1 F ceramic capacitor across the output. 2. An external input capacitor of 220 F is recommended to reduce input ripple voltage. 3. All specifications measured at nominal line, full load, and 25C unless otherwise specified. PART NUMBER KEY VFB600 - DXX - SXX X Base Number Remote On/Off Control Input Voltage Output Voltageblan = positive logic N = negative logic cui.comAdditional Resources: Product Page 3D Model PCB Footprint CUI Inc SERIES: VFB600 DESCRIPTION: DC-DC CONVERTER date 04/10/2017 page 2 of 12 INPUT parameter conditions/description min typ max units 24 Vdc input models 18 24 36 Vdc operating input voltage 48 Vdc input models 36 48 75 Vdc power up 17 Vdc 24 Vdc input power down 16 Vdc under voltage shutdown power up 35 Vdc 48 Vdc input power down 33 Vdc power up 38 Vdc 24 Vdc input power down 40 Vdc over voltage shutdown power up 77 Vdc 48 Vdc input power down 80 Vdc start-up time 250 ms models ON (0~0.01 mA) positive logic models OFF (1.0~10 mA) 1 on/off models ON (1.0~10 mA) negative logic models OFF (0~0.01 mA) filter pi filter 60 A time delay fuse for 24 Vin models, input fuse 30 A time delay fuse for 48 Vin models Note: 1. See application notes. OUTPUT parameter conditions/description min typ max units 12 Vdc output models 470 10,000 F 2 output capacitance all other models 470 5,000 F 2 line regulation from low line to high line 0.2 % 2 load regulation from full load to no load 0.5 % 2 voltage accuracy 1.5 % load share accuracy from 50~100% load 10 % adjustability 60 110 % 48 Vdc input: 12 Vdc, 28 Vdc, 32 Vdc models 300 kHz switching frequency all other models 250 kHz transient response 25% load step change 500 s temperature coefficient 0.03 %/C Vout ready: low level, sink current 20 mA power good (IOC) Vout not ready: open drain output, applied voltage 50 V auxiliary output voltage/current 10 3 Vdc, 20 mA max. Note: 2. Minimum capacitor values are required on the output to maintain the specified regulation. PROTECTIONS parameter conditions/description min typ max units short circuit protection continuous over current protection 110 150 % over voltage protection 115 140 % over temperature protection shutdown 110 C cui.com