EMH Datasheet, PDF (16/22 Pages) XP Power Limited – 250 W & 350 W Forced-cooled

Output Characteristics
Characteristic
Output Voltage - V1
Initial Set Accuracy
Output Voltage Adjustment
Minimum Load
Start Up Delay
Hold Up Time
Drift
Line Regulation
Load Regulation
Cross Regulation
Transient Response - V1
Over/Undershoot - V1
Ripple & Noise
Overvoltage Protection
Overload Protection
Short Circuit Protection
Temperature Coefficient
Overtemperature Protection
Patient Leakage Current
Minimum
12
±10 V1
0
115
110
Typical
1
16
2
xppower.com
Maximum
120
±1 V1, ±5 V2
±0.2
±0.5
±1 V1, ±5 V2
4
1
140
150
0.05
100
Units
VDC
%
%
A
s
ms
%
%
%
%
%
% pk-pk
%
%W
%/˚C
°C
µA
Notes & Conditions
See Models and Ratings table
50% load, 115/230 VAC
Via potentiometer & PMBus control, V2 will track
230 VAC full load (see fig. 2, 3 & 4.)
115 VAC full load (see fig. 5.)
After 20 min warm up
90-264 VAC
0-100% load, V2 EMH350 only
See regulation curves (see fig. 2-5)
Recovery within 1% in less than 500 µs
for a 50-75% and 75-50% load step
20 MHz bandwidth (see fig. 6 & 7.)
Vnom DC.
Primary power limit V1 & V2 output power combined.
(see fig. 6)
Continuous
Fitted, auto recovery
264 VAC/60 Hz
Regulation Curves
Figure 2 - EMH350PD21
V2 Cross Regulation
25
24.5
24
23.5
23
22.5
22
21.5
21
20.5
V1 Load (A)
V2 4.15A (50%) Load
V2 8.3A (100%) Load
V2 Load Regulation
26
25.5
25
24.5
24
23.5
23
22.5
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 6 7 8 8.3
V2 Load (A)
V1 8.25A (50%) Load
V1 16.5A (100%) Load
Figure 3 - EMH350PD22
V2 Cross Regulation
37
36
35
34
33
32
31
V1 Load (A)
V2 2.75A (50%) Load
V2 5.5A (100%) Load
V2 Load Regulation
50
45
40
35
30
25
20
15
10
5
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 2 3 4 5 5.5
V2 Load (A)
V1 8.25A (50%) Load
V1 16.5A (100%) Load
3