rev.
page
date
2 of 3
08/2007
PART NUMBER:
VSCQ20 series
DESCRIPTION:
DC/DC converter
INPUT
input voltage range
input filter type
positive logic remote on/off control
24V
48V
9-36V
18-72V
PI type
see note 3
OUTPUT
voltage accuracy single output
voltage accuracy dual+output
voltage accuracy dual-output
voltage balance, dual output at full load
transient response
single 25% step load change
dual-FL 1/2L±1% error band
ripple & noise
20MHz BW,
±1.0% max.
±1.0% max.
±2.0% max.
±1.0% max.
<500µ sec.
<500µ sec.
20mV RMS., max
75mV p-p, max
±0.02%/°C
continuous
approved to UL60950-1 (E222736)
±0.5% max
±0.5% max
temperature coefficient
short circuit protection
Safety
line regulation
1
single/dual output
2
single/dual output
load regulation
GENERAL SPECIFICATIONS
efficiency
isolation voltage
isolation resistance
switching frequency
operating temperature range
derating, above 60°C
case temperature
storage temperature
EMI/RFI
dimensions
case material
see table
1500VDC min.
10
8
ohms min
300KHz, type
-25°C to +71°C
linearly to zero power at +100°C
100°C max.
-55°C to +105°C
six sided continuous shield
2.0x1.6x0.45 inches
(50.8x40.64x11.43mm)
black coated copper with non-conductive base
NOTES:
1. measured from high line to low line
2. measured from full load to 1/4 load
3. remote on/off control:
logic compatibility CMOS or open collector TTL
EC-ON
EC-OFF
control common
>+5.5VDC or open circuit
<1.8VDC
referenced to input minus
20050
SW
112
th
Ave. Tualatin, Oregon
97062
phone
503.612.2300
fax
503.612.2382
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