Datasheet

ManualsBrandsCUI INC ManualsPSU ComponentsDC/DC converter (module) 12 V 50 A 600 W No. of outputs: 1 x

cui.com

date 12/17/2013

page

1 of 8

SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER

FEATURES

• up to 700 W isolated output

• rugged metal enclosure with integrated heat sink

• 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

• N+1 current sharing

• efficiency up to 92%

PART NUMBER KEY

VFK600 - DXX - SXX

Input Voltage

Output VoltageBase Number

MODEL

input

voltage

output

voltage

output

current

output

power

ripple

and noise

efciency

range

(Vdc) (Vdc)

max

(A)

max

(W)

max

(mVp-p)

typ

(%)

VFK600-D24-S12 18 ~ 36 12 50 600 120 89

VFK600-D24-S24 18 ~ 36 24 25 600 240 91

VFK600-D24-S28 18 ~ 36 28 21.5 600 280 90

VFK600-D24-S32 18 ~ 36 32 19 608 320 91

VFK600-D24-S48 18 ~ 36 48 12.5 600 480 92

VFK600-D48-S12 36 ~ 75 12 50 600 120 90

VFK600-D48-S24 36 ~ 75 24 25 600 240 91

VFK600-D48-S28 36 ~ 75 28 25 700 280 91

VFK600-D48-S32 36 ~ 75 32 19 608 320 92

VFK600-D48-S48 36 ~ 75 48 12.5 600 480 92

Notes: 1. Ripple and noise are measured at full load, 20 MHz BW with 10µF tantalum capacitor and 1µF ceramic capacitor across output

For more information, please visit the product page.

Summary of content (8 pages)

PAGE 1
For more information, please visit the product page.
PAGE 2
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 2 of 8 INPUT parameter conditions/description operating input voltage 24 Vdc input models 48 Vdc input models input current 24 Vdc input models, Vin = 18 Vdc, full load 48 Vdc input models, Vin = 36 Vdc, full load typ max units 18 36 24 48 36 75 Vdc Vdc 37.7 21.
PAGE 3
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 3 of 8 ENVIRONMENTAL parameter conditions/description min max units operating temperature see derating curves -40 85 °C -55 105 °C max units storage temperature typ MECHANICAL parameter conditions/description dimensions 199.14 x 126.75 x 39.12 (7.84 x 4.99 x 1.54 inch) min case material steel and aluminum extrusion weight typ mm 1.
PAGE 4
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 4 of 8 DERATING CURVES VFK600 Power Derating Curves At Nominal Input (Includes 24 V input, 12/24/28 V output models and VFK600-D48-S12) 120% Natural Convection Relative Output Power - % of nominal output 100% 0.5 m/S (100LFM) 80% 1.0 m/S (200LFM) 1.5 m/S (300LFM) 60% 2.0 m/S (400LFM) 40% 2.5 m/S (500LFM) 20% 3.0 m/S (600LFM) 3.
PAGE 5
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 5 of 8 TEST CONFIGURATION Figure 1 A +Vin Table 1 +Vout Recommended External components +S DC C1 TRIM V -S -Vin C2 A Load -Vout cui.
PAGE 6
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 6 of 8 APPLICATION NOTES 1. Parallel Operation The VFK600 series are designed for parallel operation. When in parallel the load current can be shared equally between the two modules by connecting their PC pins. The VFK600 can be setup in two different modes to achieve parallel operation.
PAGE 7
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 7 of 8 APPLICATION NOTES (CONTINUED) 2. Output Voltage Trimming Leave open if not used. Figure 2 Trim-Up/Trim-Down Formulas External Resistors +S 1.24 ×( VR Vf = +V 7.68 +( Load ) Rt + 33 Rt ×33 ) Rt + 33 Vout = (Vo + VR) × Vf -V Note: Rt = 6.
PAGE 8
For more information, please visit the product page. CUI Inc │ SERIES: VFK600 │ DESCRIPTION: DC-DC CONVERTER date 12/17/2013 │ page 8 of 8 REVISION HISTORY rev. description date 1.0 initial release 11/04/2011 1.01 derating curves added 03/12/2012 1.02 V-Infinity branding removed 08/07/2012 1.03 updated spec 03/13/2013 added parallel operation and trimming information 12/17/2013 1.04 The revision history provided is for informational purposes only and is believed to be accurate.