cui.com
date 05/08/2013 │ page 2 of 5CUI Inc │ SERIES: VF-D320-DXXA │ DESCRIPTION: AC-DC POWER SUPPLY
INPUT
parameter conditions/description min typ max units
voltage 90-132/180-264 auto selectable 90/180 132/264 Vac
frequency 47 63 Hz
current
at 100-120 Vac, cold start
at 200-240 Vac, cold start
8
4
A
A
inrush current
at 115 Vac, full load, cold start
at 230 Vac, full load, cold start
35
70
A
A
power factor Compliant to EN61000-3-2 class A
OUTPUT
parameter conditions/description min typ max units
line regulation low line to high line ±5 %
load regulation all other outputs ±5 %
temperature coeffi cient 0.25 mV/°C
transient response
Output voltage returns to within 1% in less than 2.5 mS for a 50% load change.
Peak transient does not exceed 5%.
start-up time At 120 Vac 1s
hold-up time At 120 VAC and 80% of rated maximum load 20 ms
adjustability ±5 %
power good
Designated as PG on the CN1.
This signal goes high 100-500 mS after the output reaches regulation.
It goes low at least 1 mS before loss of regulation.
fan drive 12 Vdc / 400 mA for external fan
PROTECTIONS
parameter conditions/description min typ max units
over voltage protection AC input needs to be reset to restart the power supply. 130 %
over current protection Foldback mode, automatically recovers 110 140 %
short circuit protection Short circuit can be continuous. Recovers automatically upon removal of short.
over temp. protection Auto recovery 85 °C
SAFETY & COMPLIANCE
parameter conditions/description min typ max units
isolation voltage
Applied for 3 seconds at 10 mA max.
Primary to secondary:
Primary to transformer core:
Primary to earth chassis:
3,000
1,500
1,500
Vac
Vac
Vac
safety approvals
UL60950-1, CSA C22.2 No. 60950-1-03, TUV EN60950-1 and CB, CE Mark (LVD)
EN61000-3-2, 3 & IEC61000-4 Series regulations and CB
EMI/EMC Pass FCC Part 15, CISPR 22 class B, Conducted
leakage current
at 240 Vac
at 120 Vac
500
300
μA
μA
RoHS compliant yes
MTBF According to MIL-HDBK-217 at 30 ºC 100,000 hrs
For more information, please visit the product page.
