K Series with PFC Data Sheet
150
–
280 Watt AC-DC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted
products 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
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
• Immunity accord. to IEC 61000-4-2, -3, -4, -5, -6
• PCBs protected by lacquer
• Very high reliability
111
4.4"
3U
80
3.2"
16 TE
168
6.6"
Safety-approved to IEC/EN 60950-1 and UL/CSA
60950-1 2
nd
Ed.
Description
The LK 4000/5000 Series of AC-DC converters represents
a flexible range of power supplies for use in advanced
electronic systems; the LKP models are an extension with
increased output power, but optimized to 230 VAC.
Features include full power factor correction, good hold-up
time, high efficiency and reliability, low output 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 TÜV 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. However, higher output power up to 280 W is
possible depending on environmental conditions and
converter model.
An internal temperature sensor generates an inhibit signal,
which disables the outputs, when the case temperature
T
C
exceeds the limit. The outputs automatically recover, when
Table of Contents
Page
Page
Electromagnetic Compatibility (EMC) .......................... 16
Environmental Conditions ............................................ 17
Mechanical Data ........................................................... 18
Safety and Installation Instructions .............................. 20
Description of Options .................................................. 22
Accessories .................................................................. 28
www.power-one.com
Description ...................................................................... 1
Model Selection ............................................................... 2
Functional Description .................................................... 4
Electrical Input Data ........................................................ 5
Electrical Output Data ..................................................... 8
Auxiliary Functions ........................................................ 13
BCD20001-G Rev AC, 16-Dec-2010
Page 1 of 29
K Series with PFC Data Sheet
150
–
280 Watt AC-DC Converters
the temperature drops below the limit.
Various options are available to adapt the converters to
individual applications. An external temperature sensor is
available to allow for temperature adapted battery
charging.
The converters may either be plugged into 19" rack
systems according to IEC 60297-3, or be mounted on a
chassis or plate.
Important:
These products are intended to replace the LK1000 and
LK2000 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 LK1000 and LK2000 models are still available.
Model Selection
Non-standard input/output configurations or special customer adaptations are available on request.
Table 1: Standard models
Output 1
V
o nom
I
o nom
[VDC]
[A]
5.1
5.1
12
15
24
12
15
24
12
24
24
1
2
3
4
5
Output 2
Operating input range Type designation
V
o nom
I
o nom
V
i min
–
V
i max
[VDC]
[A]
[VAC]
–
–
–
–
–
12
3
15
3
24
3
12
3
24
3
24
3
–
–
–
–
–
6
5
3
10
5.2
5.8
85 – 264
85 – 264
LK4002-7R
LK4003-6R
LK4301-7R
LK4501-7R
LK4601-7R
LK5320-7R
LK5540-7R
LK5660-7R
LKP5320-6R
LKP5660-7R
LKP5661-5R
Efficiency
1
η
min
[%]
79
79
84
85
86
82
83
83
85
86
86
Options
20
25
12
10
6
6
5
3
10
5.2
5.8
E, P, D, V
2
, P, T, K
5
, B, B1, B2
4
, G
E, P, D, V
2
, P, T, K
5
, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
E, P, D, T, B, B1, B2
4
, G
-9E, P, D, T, B, B1, B2
4
, G
E, P, D, T, B, B1, B2
4
, G
85 – 264
187 – 255
Min. efficiency at
V
i nom
,
I
o nom
and
T
A
= 25 °C. Typical values are approximately 2% better.
Option V for models with 5.1 V outputs; excludes option D
Second output semi-regulated
For customer-specific models with 220 mm case length
For new designs, use only option K.
Table 2: Battery charger models
Nom. output values Output range
5
Operating input range Type designation
V
o nom
I
o nom
V
o min
–
V
o max
V
i min
–
V
i max
[VDC]
[A]
[VDC]
[VAC]
12.84
25.68
2
51.36
3
25.68
2
25.68
2
51.36
3
51.36
3
1
2
Efficiency
1
η
min
[%]
84
83
83
86
86
86
85
Options
10
5.4
2.7
9
10
4.5
5
12.62 – 14.12
25.25 – 28.25
25.5 – 56.5
25.25 – 28.25
25.25 – 28.25
50.5 – 56.5
50.5 – 56.5
85 – 264
LK4740-7R
LK5740-7R
LK5740-7R
LKP5740-7R
LKP5741-5R
LKP5740-7R
LKP5741-5R
-9E, D, T, B, B1, B2
4
, G
-9E, D, T, B, B1, B2
4
, G
-9E, D, T, B, B1, B2
4
, G
-9E, D, T, B, B1, B2
4
, G
E, D, T, B, B1, B2
4
, G
-9E, D, T, B, B1, B2
4
, G
E, D, T, B, B1, B2
4
, G
187 – 255
187 – 255
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
3
Both outputs connected in series
4
For customer-specific models with 220 mm case length
5
Controlled by the battery temperature sensor, see
Accessories
BCD20001-G Rev AC, 16-Dec-2010
Page 2 of 29
www.power-one.com
K Series with PFC Data Sheet
150
–
280 Watt AC-DC Converters
Part Number Description
Operating input voltage
V
i
:
85 – 264 VAC
............................................................
LK
187 – 255 VAC
........................................................
LKP
Number of outputs (4 = single, 5 = double) ................... 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
.... 21 – 9 9
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
..... 70 – 99
Operational ambient temperature range
T
A
:
–25 to 71 °C ............................................................... -7
–40 to 71 °C ................................................................ -9
–25
2
to 60 °C .............................................................. -6
–25
2
to 50 °C .............................................................. -5
Other
1
......................................................................... -0
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
H15S4 connector (rather then H15S2) ..................... K
5
Cooling plate standard case ............................ B or B1
Cooling plate for long case 220 mm
1
...................... B2
RoHS-compliant for all 6 substances ...................... G
6
1
2
3
4
5
6
LK 5 5 40 -9 E P D3 T K B1
Customer-specific models
Option E is mandatory for all -9 models. Models with -5E or -6E are functional down to –40 °C.
Feature R excludes option P and vice versa. Option P is not available for battery charger models.
Option D excludes option V and vice versa; option V is available for models with 5.1 V output only (LK4003, etc.).
Option K is available for models with 5.1 V output only (LK4002, LK4003, etc.) to ensure compatibility with LK1001 models.
G is always placed at the end of the part number.
Example: LK5540-9EPD3T B1: Power factor corrected AC-DC converter, operating input voltage range 85 – 264 VAC,
2 electrically isolated outputs, each providing 15 V, 5 A, equipped with inrush current limiter, a potentiometer to
adjust the output voltages, undervoltage monitor D3, current share feature, and a cooling plate B1.
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.
BCD20001-G Rev AC, 16-Dec-2010
Page 3 of 29
www.power-one.com
K Series with PFC Data Sheet
150
–
280 Watt AC-DC 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
b
to approx. 370 VDC. This capacitor
sources a single-transistor forward converter and provides
the power during the hold-up time.
The main transformer exhibits a separate secondary
winding for each output. Each generated voltage is
rectified and smoothed by the power choke and the output
filter. The control logic senses the main output voltage
V
o
or
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.
A separate auxiliary converter generates the supply
voltages for all primary and secondary control circuits and
options.
P
03001c
Forward converter (approx. 80 kHz)
Boost converter (approx. 100 kHz)
26
N~ 28
1
C
Y
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
C
Y
Vo–
2
L~ 30
32
24
C
Y
14 S–
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
Page 4 of 29
www.power-one.com
BCD20001-G Rev AC, 16-Dec-2010
K Series with PFC Data Sheet
150
–
280 Watt AC-DC 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 (single-output models)
Table 3: Electrical input data
Input
Characteristics
V
i
V
i op
V
i nom
I
i
P
i0
P
i inh
R
i
R
NTC
C
b
V
i RFI
Rated input voltage range
Operating input voltage range
Nominal input voltage
Input current
No-load input power
Idle input power
Input resistance
NTC resistance (see fig. 3)
3
Input capacitance
Conducted input RFI
Radiated input RFI
V
i abs
Input voltage limits
without damage
EN 55011/55022
V
i nom
,
I
o nom
conv. not operating
Conditions
I
o
= 0
–
I
o nom
T
C min
to
T
C max
50 – 60 Hz
V
i nom
,
I
o nom 2
V
i min
–
V
i max
,
I
o
= 0
converter inhibited
480
3200
100
4000
150
B
A
283
–400
400
–400
180
min
100
85
230
0.8
9
3.5
10
5
480
3200
110
4000
136
B
B
283
400
VAC
VDC
4
165
µF
LK
typ
max
240
264
min
200
187
230
1.25
9
3.5
10
5
mΩ
A
W
LKP
typ
max
240
255
VAC
1
Unit
1
2
3
4
Rated input frequency: 50 – 60 Hz, operating frequency: 47 – 63 Hz. For operation at other frequencies, contact Power-One.
With double-output models, both outputs loaded with
I
o nom
Valid for models without option E. This is the value of the NTC resistance at 25 °C and applies to cold converters for the initial
switch-on cycle. Subsequent switch-on/off cycles increase the inrush current peak value.
Operation with DC input voltage is not specified and not recommended.
Input Fuse and Protection
A VDR together with the input fuse and a symmetrical input
filter form an effective protection against high input
transient voltages.
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.
Table 4: Fuse specification
Model
LK4/5000
LKP
Fuse type
slow-blow
slow-blow
Fuse rating
SP T, 4 A, 250 V, 5
×
20 mm
SP T, 4 A, 250 V, 5
×
20 mm
Inrush Current Limitation
The models without option E incorporate an NTC resistor
in the input circuitry, which at initial turn-on reduces the
peak inrush current value by a factor of 5 to 10 to protect
connectors and switching devices against 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
)
04001b
Input Under- /Overvoltage Lockout
If the input voltage remains below approx. 65 VAC (LKP:
150 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
+
∼
V
i
C
b
Fig. 3
Equivalent circuit diagram for input impedance.
BCD20001-G Rev AC, 16-Dec-2010
Page 5 of 29
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