Datasheet

cui.com
CUI Inc │ SERIES: VFB600 │ DESCRIPTION: DC-DC CONVERTER date 04/01/2013 │ page 2 of 4
INPUT
parameter conditions/description min typ max units
operating input voltage
18
36
24
48
36
75
Vdc
Vdc
input current
100% load, Vin = 18 V for VFB600-D24 series
100% load, Vin = 36 V for VFB600-D48 series
37.7
21.7
Vdc
Vdc
under voltage lockout
power up
power down
24 V input
48 V input
24 V input
48 V input
16
15
34
32
17
16
35
33
18
17
36
34
Vdc
Vdc
Vdc
Vdc
over voltage protection
turn on
turn off
24 V input
48 V input
24 V input
48 V input
38
77
40
80
Vdc
Vdc
Vdc
Vdc
positive logic remote on/off
Module ON
Module OFF
1 10
0.01
mA
mA
lter PI type
OUTPUT
parameter conditions/description min typ max units
line regulation measured from high line to low line ±0.2 %
load regulation measured from full load to zero load ±0.5 %
voltage accuracy ±1.5 %
transient response 25% step load change 500 µs
adjustability
1
60 110 %
switching frequency
24 V input
48 V input
250
300
kHz
kHz
temperature coefcient ±0.03 %/°C
Notes: 1. This is accomplished by connecting an external resistor between the +Vout and +Sense pin for both trim up and trim down. A xed resistor will be added between the
–Sense and TRIM pin.
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection %Vo 115 140 %
short circuit protection continuous
current limit 110 150 %
thermal shutdown case temp. 110 °C
SAFETY AND COMPLIANCE
parameter conditions/description min typ max units
isolation voltage
input to output
input to case
output to case
1,500
1,500
1,500
Vdc
Vdc
Vdc
isolation resistance 10
MΩ
isolation capacitance 4,000
pF
safety approvals UL 60950-1, EN 60950-1
RoHS compliant yes
For more information, please visit the product page.