S Series with PFC Data Sheet
100 Watt AC-DC PFC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted pro-
ducts are available.
• Class I equipment
• Power factor >0.93, harmonics IEC/EN 61000-3-2
• Immunity according to IEC/EN 61000-4-2, -3, -4, -5,
-6, -8, -9
• Compliant with EN 50155, EN 50121-4, EN 45545.
• High efficiency
• Input over- and undervoltage lockout
• Adjustable output voltage with remote on/off
• 1 or 2 outputs: SELV, no load, overload, and short-circuit
proof
• Rectangular current limiting characteristic
• PCBs protected by lacquer
• Very high reliability
111
4.4"
3U
60
2.4"
12 TE
168
6.6"
Safety-approved according to IEC/EN 60950-1, UL/CSA
60950-1 2
nd
Ed.
Description
The LS 4000/5000 Series of AC-DC converters represents a
flexible range of power supplies for use in advanced
electronic systems. Features include full power factor
correction, good hold-up time, high efficiency and reliability,
low output voltage noise, and excellent dynamic response to
load/line changes.
The converters are protected against surges and transients
occurring at the source lines. Input over- and undervoltage
lockout circuitry disables the outputs, when the input voltage
is outside of the specified range. Input inrush current limitation
is included for preventing circuit breakers and fuses from
tripping at switch-on.
All outputs are overload, open- and short-circuit proof and
protected by a built-in suppressor diode. The outputs can be
inhibited by a logic signal applied to connector pin 18. If the
inhibit function is not used, pin 18 must be connected with pin
14 to enable 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 converters are designed and
built according to the international safety standards IEC/EN
60950-1 2
nd
Ed. They have been approved by the
safety agencies
Nemko
and CSA (for USA and 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.
Table of Contents
Page
Page
Electromagnetic Compatibility (EMC) ........................... 15
Environmental Conditions ............................................. 16
Mechanical Data ............................................................ 17
Safety and Installation Instructions ............................... 19
Description of Options ................................................... 21
Accessories ................................................................... 27
Description ....................................................................... 1
Model Selection ............................................................... 2
Functional Description ..................................................... 4
Electrical Input Data ........................................................ 5
Electrical Output Data ..................................................... 7
Auxiliary Functions ........................................................ 11
Copyright © 2015, Bel Power Solutions Inc. All rights reserved.
MELCHER
BCD20003-G Rev AC, 29-Apr-2015
The Power Partners.
Page 1 of 28
S Series with PFC Data Sheet
100 Watt AC-DC PFC Converters
An internal temperature sensor generates an inhibit signal,
which disables the outputs, if the case temperature
T
C
exceeds the limit. The outputs automatically recover, when
the temperature drops below the limit.
Various options including battery chargers are available to
adapt the converters to individual applications.
The converters may either be plugged into 19" rack systems
according to IEC 60297-3, or be chassis mounted.
Important:
These products are intended to replace the LS1000 and LS2000
models in order to comply with IEC/EN 61000-3-2. For
applications with DC input or main frequencies other than 50/60
Hz, the LS1000 and LS2000 models are still available.
Model Selection
Non-standard input/output configurations or special customer adaptations are available on request.
Table 1: Model types LS
Output 1
V
o nom
I
o nom
[VDC]
[A]
2
5.1
12
15
24
24
30
48
12
15
24
1
2
3
4
Output 2
V
o nom
I
o nom
[VDC]
[A]
Oper. input voltage range
V
i min
–
V
i max
85
–
264 VAC
LS4001-9 ER
LS4301-9 ER
LS4501-9 ER
LS4601-9 ER
LS5320-9 ER
LS5540-9 ER
LS5660-9 ER
Efficiency
1
η
min
[%]
77
81
83
83
81
81
81
81
81
81
Options
16
8
6.5
4.2
4
3.2
2
4
3.2
2
12
3
15
3
24
3
4
3.2
2
-7, -7E, P, D
2
, V
2
, T, B, B1, B2
4
, G
-7, -7E, P, D, T, B, B1, B2
4
, G
LS5320-9 ER
LS5540-9 ER
LS5660-9 ER
Min. efficiency at
V
i nom
,
I
o nom
and
T
A
= 25 °C. Typical values are approximately 2% better.
Option V for LS 4000 models with 5.1 V output; excludes option D
Second output semi-regulated
For customer-specific models with 220 mm case length
Table 2: Battery charger models
Nom. output values
V
o nom
I
o nom
[VDC]
[A]
12.84
25.68
2
51.36
3
1
2
3
Output range
V
o nom
I
o nom
[ VDC]
[A]
12.62 – 14.12
25.25 – 28.25
50.5 – 56.5
Oper. input voltage range
V
i min
–
V
i max
85
–
264 VAC
LS4740-9 ER
LS5740-9 ER
LS5740-9 ER
Efficiency
1
η
min
[%]
81
81
81
Options
7
3.4
1.7
-7, -7E, D, T, B, B1, G
Min. efficiency at
V
i nom
,
I
o nom
and
T
A
= 25 °C. Typical values are approximately 2% better.
Both outputs connected in parallel
Both outputs connected in series
NFND: Not for new designs
Preferred for new designs
MELCHER
BCD20003-G Rev AC, 29-Apr-2015
The Power Partners.
Page 2 of 28
S Series with PFC Data Sheet
100 Watt AC-DC PFC Converters
Part Number Description
Operating input voltage
V
i
: 85 – 264 VAC
.......................
LS
Number of outputs ....................................................... 4, 5
Single output models:
Nominal voltage output 1 (main output),
V
o1 nom
5.1 V ..................................................................... 0, 1, 2
12 V .............................................................................. 3
15 V .......................................................................... 4, 5
24 V .............................................................................. 6
Other voltages
1
....................................................... 7, 8
Other specifications (single output models)
1
....... 01 – 99
Double output models:
Nominal voltage output 1 and 2
12 V, 12 V
...............................................................................................
20
15 V, 15 V
...............................................................................................
40
24 V, 24 V .................................................................. 60
Other specifications or additional features
1
....... 21– 99
Operational ambient temperature range
T
A
:
–25 to 71 °C ................................................................ -7
–40 to 71 °C ................................................................ -9
Other
1
............................................................... -0, -5, -6
Auxiliary functions and options:
Inrush current limitation ............................................. E
2
Output voltage control input ....................................... R
3
Potentiometer (output voltage adjustment) ................ P
3
Undervoltage monitor (D0
–
DD, to be specified) ...... D
4
ACFAIL signal (V2, V3, to be specified) .................... V
4
Current share ............................................................... T
Cooling plate standard case .............................. B or B1
Cooling plate for long case 220 mm
1
........................ B2
RoHS-compliant for all 6 substances .......................... G
1
2
3
4
LS 5 5 40 -9 E R D3 T B1 G
Customer-specific models
Option E mandatory for all -9 models
Feature R excludes option P and vice versa.
Option D excludes option V and vice versa; option V is available for 5.1 V models only.
Note:
The sequence of options must follow the order above. This part number description is descriptive only; it is not inteded for
creating part numbers.
NFND: Not for new designs
Preferred for new designs
Example:
LS5540-9ERD3TB1G: Power factor corrected AC-DC converter, operating input voltage range 85 – 264 VAC,
2 electrically isolated outputs, each providing 15 V, 3.2 A, equipped with inrush current limiter, R-input to adjust the
output voltages, undervoltage monitor D3, current share feature, a cooling plate B1, RoHS-compatibel.
Product Marking
Basic type designation, applicable approval marks, CE mark,
warnings, pin designation, Power-One patents and company
logo, identification of LEDs, test sockets, and potentiometer.
Specific type designation, input voltage range, nominal output
voltages and currents, degree of protection, batch no., serial
no., and data code including production site, modification
status and date of production.
MELCHER
BCD20003-G Rev AC, 29-Apr-2015
The Power Partners.
Page 3 of 28
S Series with PFC Data Sheet
100 Watt AC-DC PFC Converters
Functional Description
The input voltage is fed via an input fuse, an input filter, a
rectifier, and an inrush current limiter to a boost converter.
This step-up converter provides a sinusoidal input current
(IEC/EN 61000-3-2, class D equipment) and charges the bulk
capacitor
C
i
to approx. 370 VDC. This capacitor sources a
single transistor forward converter and provides the power
during the hold-up time.
Each output is powered by a separate secondary winding of
the main transformer. The resultant voltages are rectified and
their ripple smoothed by a power choke and an output filter.
The control logic senses the main output voltage
V
o1
and
generates, with respect to the maximum admissible output
currents, the control signal for the switching transistor of the
forward converter.
The second output of double output models is tracking to the
main output, but has its own current limiting circuit. If the main
output voltage drops due to current limitation, the second
output voltage will fall as well and vice versa.
P
C
Y
03001c
Forward converter (approx. 80 kHz)
Boost converter (approx. 100 kHz)
26
N~ 28
1
Bridge retifier
Input filter
C
Y
Output
filter
3
C
i
+
Control circuit
16 R
18 i
20 D/V
22 T
12 S+
4
Vo+
6
8
10
Fuse
2
C
Y
Vo–
L~ 30
32
24
14 S–
C
Y
Fig. 1
Block diagram of single-output models
1
2
3
–
+
Transient suppressor (VDR)
Inrush current limiter (NTC, only models with
T
A min
= –25 °C ) or option E
Bulk capacitor
C
b
; bulk voltage approx. 370 V
P
03002c
Boost converter (approx. 100 kHz)
Forward converter (approx. 80 kHz)
N~ 26
28
1
C
Y
Bridge retifier
Input filter
C
i
+
3
C
Y
Control circuit
16
18
20
22
R
i
D
T
Output 1
filter
12 Vo1+
14 Vo1–
4
Vo2+
6
8
Vo2–
10
Fuse
2
L~ 30
32
24
C
Y
Output 2
filter
–
Fig. 2
Block diagram of double-output models
1
2
3
+
Transient suppressor (VDR)
Inrush current limiter (NTC, only models with
T
A min
= –25 °C ) or option E
Bulk capacitor
C
b
; bulk voltage approx. 370 V
MELCHER
BCD20003-G Rev AC, 29-Apr-2015
The Power Partners.
Page 4 of 28
S Series with PFC Data Sheet
100 Watt AC-DC PFC Converters
Electrical Input Data
General Conditions
–
T
A
= 25 °C, unless
T
C
is specified.
– Pin 18 connected to pin 14, R input not connected,
V
o
adjusted to
V
o nom
(option P)
– Sense line pins S+ and S– connected to Vo+ and Vo–, respectively.
Table 3: Input data
Input
Characteristics
V
i
V
i op
I
i
P
i0
P
i inh
R
i
Rated input voltage range
Operating input voltage range
Input current
No-load input power
Idle input power
Input resistance
Conditions
I
o
= 0
–
I
o nom
T
C min
–
T
C max
50 – 60 Hz
V
i nom
,
I
o nom 2
V
i min
–
V
i max
,
I
o
= 0
conv. inhibited
480
3200
80
EN 55022
V
i nom
,
I
o nom
4000
100
B
B
283
– 400
400
VAC
VDC
4
120
µF
min
100
85
230
0.55
7.5
2
9
3
mΩ
A
W
LS
typ
max
240
264
VAC
1
Unit
V
i nom
Nominal input voltage
R
NTC
NTC resistance (see fig. 3)
3
conv. not operating
C
i
V
i RFI
Input capacitance
Conducted input RFI
Radiated input RFI
V
i abs
Input voltage limits
without damage
1
2
3
4
Nominal frequency range: 50 – 60 Hz, operating frequency range 47 – 63 Hz
With double-output models, both outputs loaded with
I
o nom
Valid for -7 versions without option E. This is the NTC resistance value at 25 °C and applies to cold converters. Subsequent switch-on/
off cycles increase the inrush current peak value.
Operation with DC input voltage is not specified and not recommended.
Input Transient Protection
A VDR together with the input fuse and a symmetrical input
filter form an effective protection against high input transient
voltages.
inrush current value by a factor of 5 to 10 to protect
connectors and switching devices from damage. Subsequent
switch-on cycles within short periods will cause an increase of
the peak inrush current value due to the warming-up of the
NTC resistor.
The inrush current peak value (initial switch-on cycle) can be
determined by following calculation:
––
V
i
•
√
2
I
inr p
= ––––––––––––––––
(R
s ext
+
R
i
+
R
NTC
)
Input Fuse
A fuse mounted inside the converter in series to the phase line
protects against severe defects. A second fuse in the neutral
line may be necessary in certain applications; see
Installation
Instructions.
Fuse specification:
Slow-blow, 4 A, 250 V, 5
×
20 mm.
04001b
Input Under- /Overvoltage Lockout
If the input voltage remains below approx. 65 VAC or exceeds
V
i abs
, an internally generated inhibit signal disables the
output(s). Do not check the overvoltage lockout function!
If
V
i
is below
V
i min
, but above the undervoltage lockout level,
the output voltage may be below the value specified in the
tables
Electrical Output Data.
R
s ext
I
inr p
R
i
R
NTC
C
b
+
∼
V
i
Fig. 3
Equivalent circuit diagram for input impedance.
Inrush Current Limitation
The -7 models without option E incorporate an NTC resistor in
the input circuitry, which at initial turn-on reduces the peak
MELCHER
BCD20003-G Rev AC, 29-Apr-2015
The Power Partners.
Page 5 of 28
京公网安备 11010802033920号
EEWORLD
