2
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ULP275
Series
Parameter
Minimum
Typical
Maximum
Units
Notes & Conditions
Output voltage
12
58
VDC
See Model & Ratings table
Output voltage Adjust
±3
%
Set point accuracy
±1
%
Line regulation
±0.5
%
Load regulation
±1
%
Minimum load
0
%
Transient response
10
%
50
-
100% step change 0.1A/uS slew 50% duty 50hz in <5ms
Ripple & Noise
2
%
All models measured with 0.1uF ceramic and 10uF
electrolytic capacitor. 20 MHz bandwidth. At rated line and
25W min load.
Hold up time
8
14
mS
8mS at 350W, 14mS at 200W
Overload protection
110
%
Hiccup mode, Auto recovery
Short circuit protection
Latch reset
Overvoltage protection
114
%
Latch reset
Over temperature protection
130
140
°
C
Measured at primary heatsink. Auto recovery
Leakage current
400
uA
240VAC / 50Hz
Touch Current
100
uA
Output
Parameter
Minimum
Typical
Maximum
Units
Notes & Conditions
Efficiency
120VAC 88% and 240VAC 93% typical
Isolation: Input to Output
4245
VAC
Input to Ground
1625
VAC
Output to ground
1500
VAC
Switching frequency
85
100
kHz
100 kHz variable for power switching. Variable PFC
switching 85kHz
Power density
12.73
W/In
3
MTBF
>1.28
MHrs
As per Telcordia
-
SR332–
issue 3
Weight
1300
g
General
Parameter
Minimum
Typical
Maximum
Units
Notes & Conditions
Operating temperature
-
40
70
°C
Please see derating curve on page 3
Storage temperature
-
40
85
°C
Cooling
Fan cooled
Altitude
4876
12192
m
4876m operating 12192m non operating
Humidity
5
95
% RH
Non condensing
Environmental
Parameter
Minimum
Typical
Maximum
Units
Notes & Conditions
Input voltage
85
264
VAC
Derate from 100% at 120VAC to 70% at 85VAC
Input frequency
47
63
Hz
Power factor
0.95
0.98
EN61000
-
3
-
2 class D compliant, at full load. 0.98 at
120VAC and 0.95 at 240VAC
Input current (rms)
11
A
At 120VAC
5.5
At 240VAC
Inrush current
25
A
230VAC cold start at 25°C
No load input power
3W
6W
W
3W output disabled 6W output enabled
Input
WLP350
Series
VPS1000
Series
MVPS1000
Series
