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DATA SHEET
4
INPUT
General Condition: T A = 0… 45 °C unles s otherwise noted.
PARAMETER
DESCRIPTION / CONDITION
MIN
NOM
MAX
UNIT
V i nom
Nominal Input Voltage
100
230
230
VAC
V i
V i red
I i max
I i p
Input Voltage Ranges
Derated Input Voltage Range
Max Input Current
Inrush Current Limitation
Normal operating ( V i min to V i max )
See Figure 20 and Figure 41
V i min to V i max , T NTC = 25°C ( Figure 5)
90
90
264
180
13
40
VAC
VAC
A rms
A p
F i
PF
Input Frequency
Power Factor
V i nom , 50Hz, > 0.3 I 1 nom
47
0.96
50/60
64
Hz
W/VA
V i on
V i off
Turn-on Input Voltage 1)
Turn-off Input Voltage 1)
Ramping up
Ramping down
80
75
87
85
VAC
VAC
V i nom , 0.1? I x nom , V x nom , T A = 25°C
90.3
η
Efficiency without Fan
V i nom , 0.2? I x nom , V x nom , T A = 25°C
V i nom , 0.5? I x nom , V x nom , T A = 25°C
93.4
94.5
%
V i nom , I x nom , V x nom , T A = 25°C
93.8
T hold
Hold-up Time
After last AC zero point, V 1 > 10.8V, V SB within regula-
12
ms
tion, V i = 230VAC, P x nom
1) The
Front-End is provided with a minimum hysteresis of 3V during turn-on and turn-off within the ranges.
4.1
INPUT FUSE
Quick-acting 16 A input fuses (5 x 20 mm) in series with both the L- and N-line inside the power supply protect against se-
vere defects. The fuses are not accessible from the outside and are therefore not serviceable parts.
4.2
INRUSH CURRENT
The AC-DC power supply exhibits an X- capacitance of only 3.2μF, resulting in a low and short peak current, when the supply
is connected to the mains. The internal bulk capacitor will be charged through an NTC which will limit the inrush current.
NOTE: Do not repeat plug-in / out operations within a short time, or else the internal in-rush current limiting device (NTC)
may not sufficiently cool down and excessive inrush current or component failure(s) may result.
4.3
INPUT UNDER-VOLTAGE
If the sinusoidal input voltage stays below the input undervoltage lockout threshold Vi on, the supply will be inhibited. Once
the input voltage returns within the normal operating range, the supply will return to normal operation again.
4.4
POWER FACTOR CORRECTION
Power factor correction (PFC) is achieved by controlling the input current waveform synchronously with the input voltage. A
fully digital controller is implemented giving outstanding PFC results over a wide input voltage and load ranges. The input
current will follow the shape of the input voltage. If for instance the input voltage has a trapezoidal waveform, then the current
will also show a trapezoidal waveform.
In addition, the PFC circuit has a stability region to be observed when operating the power supply at high input current ampli-
tudes. At a low source inductance (<150μH) the power supply will work stable up to its full maximum input current (13 Arms).
If the source inductance is higher, the region with stable PFC operation is slightly reduced (as shown in Figure 4 ) . The power
supply will also work in the unstable region, but it may exhibit a slight current oscillation during the sinusoidal peak.
4.5
EFFICIENCY
High efficiency (see Figure 2 ) is achieved by using state-of-the-art silicon power devices in conjunction with soft-transition
topologies minimizing switching losses and a full digital control scheme. Synchronous rectifiers on the output reduce the
losses in the high current output path. The speed of the fan is digitally controlled to keep all components at an optimal oper-
ating temperature regardless of the ambient temperature and load conditions.
BCD.00012_AI Oct-24-2013
3
www.power-one.com
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