LXN2880-6G Просмотр технического описания (PDF) - Power-One Inc.
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LXN2880-6G Datasheet PDF : 21 Pages
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X Series Data Sheet
®
375, 500 Watt AC-DC and DC-DC DIN-Rail Converters
Table 4: Po derating according to UL 60950 at TA = 60 °C, or according to UL 508 at Tout = 50 °C
Model
Po nom
TC max
Derate below
LXR1601-6
[W]
[°C]
Vi [VAC]
Vi [VDC]
371
84
125
115
LXR1701-6
370
84
125
115
LXR1801-6
371
84
125
115
LXN1601/2660-6
494
84
125
115
LXN1701-6
496
84
125
115
LXN1801/2880-6
494
84
125
115
Table 5: Po derating according to UL 60950 at TA = 50 °C, or according to UL 508 at Tout = 40 °C
Model
Po nom
TC max
Derate below
[W]
[°C]
Vi [VAC]
Vi [VDC]
LXR1601-6
371
78
100
no derating
LXR1701-6
370
78
100
no derating
LXR1801-6
371
78
100
no derating
LXN1601/2660-6
494
78
100
no derating
LXN1701-6
496
78
100
no derating
LXN1801/2880-6
494
78
100
no derating
derate by
[W/ V]
– 1.8
– 1.8
– 1.8
– 2.5
– 2.5
– 2.5
derate by
[W/ V]
– 1.5
– 1.5
– 1.5
–2
–2
–2
Output Power Derating
The output power of LX models must be decreased at low
input voltage and/or powertrain temperature above 125 °C.
The powertrain temperature depends on the output power,
the input voltage, and the cooling method. At low input voltage
the losses increase. At the maximum specified environment
temperature TA free air convection cooling might be
insufficient. As a result, the output power has to be reduced
according to the tables 4 and 5.
Note: The measurements have been made at the approval tests
with free air convection cooling according to UL 60950, specified
ambient temperature TA, and with the converter built in a
cardboard box according to UL 508 and a specified temperature
outside the box Tout. The tables give a correlation between TA or
Tout and the case temperature TC (measuring point TC see
Mechanical Data). For models not specified, please contact
Power-One.
Input Fuse and Protection
A slow blow fuse ( Schurter T 10A, 5 × 20 mm), protected by a
sleeve, is connected in the line input. For DC input voltages
above 250 V an external DC fuse or a circuit breaker must be
installed; observe the Installation Instructions.
Converters with option F have 2 fuses, one in each input line.
The D C input voltage for all converters with option F is limited
to 250 V.
A VDR and a symmetrical input filter form an effective
protection against input transients.
An under- and overvoltage lockout protects the converter by
disabling it below Vi min and above Vi max.
The built-in bridge rectifier provides reverse polarity protection
at the input if operated from DC.
Efficiency
η [%]
04068a
90
80
70
60
50
0
0.2 0.4 0.6
Vi = 125 Vrms
Fig. 3
Efficiency versus load
Io
0.8
1 Io nom
Vi = 230 Vrms
BCD20021-G Rev AC1, 13-May-2013
Page 6 of 21
www.power-one.com
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