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PDF LS5540-7R Data sheet ( Hoja de datos )
| Número de pieza | LS5540-7R | |
| Descripción | 100 Watt AC-DC Converters with PFC | |
| Fabricantes | Power-One | |
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Cassette Style
100 Watt AC-DC Converters
100 Watt AC-DC Converters with PFC
S Series PFC
S Series
Input voltage range from 85...264 V AC
1 or 2 isolated outputs up to 48 V DC
4 kV AC I/O electric strength test voltage
• Universal input voltage range
• Power factor >0.95, harmonics <IEC/EN 61000-3-2
• Input over- and undervoltage lock-out
• Efficient input filter and built-in surge and transient
suppression circuitry
• Fully isolated outputs
• Outputs overload, open- and short-circuit proof
• No derating over entire operating temperature range
Safety according to IEC/EN 60950
LGA
Summary
The S 4000/S 5000 series of AC-DC converters represents
a flexible range of power supplies for use in advanced elec-
tronic systems. Features include full power factor correc-
tion, high efficiency, high reliability, low output voltage noise
and excellent dynamic response to load/line changes.
The converter inputs are protected against surges and tran-
sients occurring at the source lines. An input over- and
undervoltage lock-out circuitry disables the outputs if the
input voltage is outside the specified range. Inrush current
limitation is included preventing circuit breakers and fuses
from being damaged at switch-on.
All outputs are overload, open- and short-circuit proof and
are protected against overvoltages by means of a built-in
suppressor diode. The outputs can be inhibited by a logic
signal applied to the connector pin 18 (i). If the inhibit func-
tion is not used pin 18 must be connected to pin 14 to en-
able the outputs.
LED indicators display the status of the converter and allow
visual monitoring of the system at any time.
Full input to output, input to case, output to case and output
to output isolation is provided. The modules are designed
and built according to the international safety standards
IEC/EN 60950 and have been approved by the safety
60
2.4"
12 TE
111
4.4"
3U
168
6.6"
agencies LGA (Germany) and UL (USA). The UL Mark for
Canada has been officially recognized by regulatory au-
thorities in provinces across Canada.
The case design allows operation at nominal load up to
71°C in a free air ambient temperature. If forced cooling is
provided, the ambient temperature may exceed 71°C but
the case temperature must remain below 95°C under all
conditions.
A temperature sensor generates an inhibit signal which
disables the outputs if the case temperature TC exceeds
the limit. The outputs are automatically re-enabled when
the temperature drops below the limit.
Various options are available to adapt the converters to in-
dividual applications.
The modules may either be plugged into 19" rack systems
according to DIN 41494, or be chassis mounted.
Important:
These products are intended to replace the LS 1000 and
LS 2000 in order to comply with IEC/EN 61000-3-2.
Table of Contents
Page
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description ...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Auxiliary Functions ......................................................... 11
Page
Electromagnetic Compatibility (EMC) ............................ 15
Immunity to Environmental Conditions ........................... 17
Mechanical Data ............................................................ 18
Safety and Installation Instructions ................................ 19
Description of Options .................................................... 22
Accessories .................................................................... 27
Edition 01/01.2001
1/27
1 page  
Cassette Style
100 Watt AC-DC Converters
S Series PFC
Input Inrush Current Characteristic
Iinr [A]
130
100
04006
Ui = 255 Vrms
Ui = 115 Vrms
50
Static Input current Characteristic
li [Arms]
3
2.5
2
1.5
1
0.5
50
100 150 200 250
04005
Ui [V AC]
300
Fig. 6
Input current versus input voltage at Io nom
1
0 1 2 3 t [ms]
Fig. 4
Theoretical input inrush current versus time at Ui 255 Vrms
and 115 Vrms, Rext = 0.
Harmonic Currents
The harmonic distortion is well below the limits specified in
IEC/EN 61000-3-2, class D.
Ii [mA/W]
3.5
04042
3.0
Limit class D according
2.5 to IEC/EN 61000-3-2
2.0
1.5
1.0
0.5
0 Harm.
3 5 7 9 11 13 15 17 19
Fig. 5
Harmonic currents at the input, IEC/EN 61000-3-2,
class D. Ui = Ui nom, Io = Io nom.
Power Factor, Harmonics
Power factor correction is achieved by controlling the input
current waveform synchronously with the input voltage
waveform. The power factor control is active under all oper-
ating conditions.
Power Factor
1
04004
0.95
0.9
0.85
0.8
Ui = 230 V AC
Ui = 85 V AC
0.75
0.7
0
0.2 0.4 0.6 0.8
1 Io /Io nom
Fig. 7
Power factor versus output current at Ui 230 V AC and
85 V AC.
Edition 01/01.2001
5/27
5 Page 
Cassette Style
100 Watt AC-DC Converters
S Series PFC
Auxiliary Functions
i Inhibit for Remote On and Off
Note: With open i input: Output is disabled (Uo = off).
The outputs of the module may be enabled or disabled by
means of a logic signal (TTL, CMOS, etc.) applied between
the inhibit input i and the negative pin of output 1 (Vo1–). In
systems with several units, this feature can be used, for ex-
ample, to control the activation sequence of the converters.
If the inhibit function is not required, connect the inhibit pin
18 to pin 14 to enable the outputs (active low logic, fail
safe). For output response refer to: Hold-up Time and Out-
put Response.
06031
Vi+ Vo+
I inh
i
U inh
Vi– Vo–
Fig. 17
Definition of Uinh and Iinh.
Iinh [mA]
2.0
Uinh = 0.8 V
Uinh = 2.4 V
1.6
1.2
0.8
0.4 Uo = on
Uo = off
0
–0.4
–0.8
–50 –30 –10 0 10
30
50 Uinh [V]
Fig. 18
Typical inhibit current Iinh versus inhibit voltage Uinh
Sense Lines
(Only for single output units 5.1 V, 12 V, 15 V, 24 V)
This feature enables for compensation of voltage drops
across the connector contacts and if necessary, across the
load lines. If the sense lines are connected at the load
rather than directly at the connector, the user should ensure
that Uo max (between Vo1+ and Vo1–) is not exceeded. We
recommend connecting the sense lines directly at the fe-
male connector.
For further information, please refer to: Application Notes .
To ensure correct operation, both sense lines (S+ and S–)
should be connected to their respective power outputs
(Vo1+ and Vo1–) and the voltage difference between any
sense line and its respective power output pin (as meas-
ured on the connector) should not exceed the following val-
ues:
Table 6: Maximum Voltage compensation allowed using
sense lines
Output
voltage
5.1 V
12 V, 15 V
Total voltage difference Voltage difference
between sense lines and
between
their respective outputs
Vo– and S–
<0.5 V
<0.25 V
<1.0 V
<0.25 V
If the output voltages are increased above Uo nom via R-in-
put control, option P setting, remote sensing or option T, the
output currents must be reduced accordingly so that
Po nom is not exceeded.
Important: The output terminals Vo1+ and Vo1– must
always be connected to the load before connecting the
sense lines S+ and S–, otherwise the unit will be dam-
aged.
Table 5: Inhibit characteristics
Characteristic
Conditions min typ max Unit
Uinh Inhibit Uo = on Ui min…Ui max –50
voltage Uo = off
2.4
0.8 V
50
Iinh Inhibit current Uinh = 0
–400 µA
tr Rise time
30 ms
tf Fall time
depending on Io
Uo/Uo nom
1
06001
0.1
0
tr
tf
Inhibit
1
0
Fig. 19
Output response as a function of inhibit control
Edition 01/01.2001
t
t
11/27
11 Page | ||
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