For more information, please visit the product page. date 03/18/2013 page 1 of 4 SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER FEATURES • • • • • up to 75 W isolated output 4:1 input range (9~36 V, 18~75 V) single output from 3.3~24 V 1,500 V isolation over current, over temperature, over voltage, and short circuit protections • remote on/off • efficiency up to 87% RoHS MODEL input voltage output voltage output current output power ripple and noise1 efficiency range (Vdc) (Vdc) max (A) max (W) max (mVp-p) typ (%) VQB75W-Q24-S3R3 9 ~ 36 3.3 12 40 100 81 VQB75W-Q24-S5 9 ~ 36 5 12 60 100 84 VQB75W-Q24-S12 9 ~ 36 12 6.25 75 150 86 VQB75W-Q24-S15 9 ~ 36 15 5 75 150 86 VQB75W-Q24-S24 9 ~ 36 24 3.12 75 240 86 VQB75W-Q48-S3R3 18 ~ 75 3.3 12 40 100 82 VQB75W-Q48-S5 18 ~ 75 5 12 60 100 85 VQB75W-Q48-S12 18 ~ 75 12 6.25 75 150 86 VQB75W-Q48-S15 18 ~ 75 15 5 75 150 87 VQB75W-Q48-S24 18 ~ 75 24 3.12 75 240 87 Notes: 1. ripple and noise are measured at 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output PART NUMBER KEY VQB75W - QXX - SXX X Base Number Input Voltage Output Voltage cui.com Remote On/Off Control "blank" = positive logic N = negative logic For more information, please visit the product page. CUI Inc │ SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER date 03/18/2013 │ page 2 of 4 INPUT parameter conditions/description operating input voltage under voltage lockout power up power down 24 48 24 48 V V V V min typ max units 9 18 24 48 36 75 Vdc Vdc input input input input 8.8 17 8 16 Vdc Vdc Vdc Vdc remote on/off1 filter Notes: PI type 1. logic compatibility, open collector ref to -input for positive logic Module ON, >3.5~75 Vdc or open circuit Module OFF, <1.8 Vdc OUTPUT parameter conditions/description line regulation load regulation min typ max units measured from high line to low line ±0.2 % measured from full load to zero load ±0.2 % ±1.5 % 500 µs %Vout voltage accuracy transient response 75~100% step load change recovery time error band ±5 adjustability2 switching frequency 100% load, input voltage range temperature coefficient Notes: ±10 % 300 kHz ±0.03 %/°C 2. trim-up: connect a resistor between the trim pin and -Sense trim-down: connect a resistor between the trim pin and +Sense PROTECTIONS parameter conditions/description min max units over voltage protection %Vo 115 typ 140 % over current protection % nominal output current 110 140 % short circuit protection continuous max units SAFETY AND COMPLIANCE parameter conditions/description isolation voltage input to output input to case output to case isolation resistance tested at 500 Vdc RoHS compliant yes min typ 1,500 1,500 1,500 Vdc Vdc Vdc 100 MΩ ENVIRONMENTAL parameter conditions/description min case operating temperature -40 storage temperature -55 thermal shutdown case temp. typ 105 cui.com max units 100 °C 105 °C °C For more information, please visit the product page. CUI Inc │ SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER date 03/18/2013 │ page 3 of 4 MECHANICAL parameter conditions/description dimensions 36.8 x 57.90 x 12.70 (1.449 x 2.280 x 0.500 inch) min case material aluminum baseplate, plastic case typ max units mm MECHANICAL DRAWING units: mm[inch] tolerance: X.X = ±0.5mm X.XX = ±0.25mm 57.90 2.280 36.80 1.449 12.70 0.500 4.10 0.161 (TYP) 50.80 2.000 PIN CONNECTIONS M3X0.5 THROUGH (4 PLCS) 47.20 1.858 1.50 0.059 (2 PLCS) 1.02 0.040 (6 PLCS) 26.02 1.024 3 18.40 0.724 2 10.78 0.424 0 0.000 Note: 1 4 5 6 7 8 PIN FUNCTION 1 +Vin 2 on/off 31.50 1.240 3 -Vin 26.02 1.024 22.21 0.874 4 -Vo 5 -S 14.59 0.574 10.78 0.424 6 trim 7 +S 5.30 0.209 0 0.000 8 +Vo All specifications measured at 25°C, nominal input voltage, and full load unless otherwise noted. cui.com For more information, please visit the product page. CUI Inc │ SERIES: VQB75W │ DESCRIPTION: DC-DC CONVERTER date 03/18/2013 │ page 4 of 4 REVISION HISTORY rev. description date 1.0 initial release 12/04/2008 1.01 updated mechanical drawing 01/08/2009 1.02 V-Infinity branding removed 09/25/2012 updated spec 03/18/2013 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.