AK1601-7RB1 [BEL]
DC-DC Regulated Power Supply Module, 1 Output, 150W, Hybrid, METAL, CASE K02, MODULE;型号: | AK1601-7RB1 |
厂家: | BEL FUSE INC. |
描述: | DC-DC Regulated Power Supply Module, 1 Output, 150W, Hybrid, METAL, CASE K02, MODULE |
文件: | 总35页 (文件大小:5691K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
K Series
150 Watt DC-DC and AC-DC Converters
Features
•
RoHS lead-free-solder and lead-solder-exempted
products available
•
5 year warranty for RoHS compliant products with an
extended temperature range
•
•
Compliant with EN 50155, EN 50121-3-2
Fire & smoke according to EN 45545 and NF-F16
(ver. V108 or later; not models with H15-S4 connector)
Class I equipment
Extremely wide input voltage ranges from 8 to 385 VDC,
and 85 to 264 VAC, 47 to 440 Hz
•
•
•
•
•
•
•
•
Input over- and undervoltage lockout
Adjustable output voltage with remote on/off
1 or 2 outputs: SELV, no load, overload & short-circuit proof
Rectangular current limiting characteristic
PCBs protected by lacquer
Very high reliability
Safety-approved to the latest edition of IEC/EN 60950-1
and UL/CSA 60950-1
111
4.4ꢀ
3 U
80
3.2ꢀ
16 TE
168
6.6ꢀ
Table of Contents
Description........................................................................................2
Model Selection................................................................................2
Functional Description......................................................................5
Electrical Input Data .........................................................................6
Electrical Output Data.......................................................................9
Auxiliary Functions .........................................................................13
Electromagnetic Compatibility (EMC).............................................17
Immunity to Environmental Conditions...........................................19
Mechanical Data.............................................................................20
Safety and Installation Instructions.................................................22
Description of Options....................................................................26
Accessories....................................................................................34
belfuse.com/power-solutions
BCD20002-G Rev AG, 19-Jul-2018
K Series
150 W DC-DC and AC-DC Converters
Description
The K Series of DC-DC and AC-DC converters represents a broad and flexible range of power supplies for use in advanced
electronic systems. Features include high efficiency, high reliability, low output voltage noise and excellent dynamic response to
load/line changes. LK models can be powered by DC or AC with a wide-input frequency range (without PFC).
The converter inputs are protected against surges and transients. An input over- and undervoltage lockout circuitry disables the
outputs, if the input voltage is outside of the specified range. Certain types include an inrush current limiter preventing circuit
breakers and fuses from tripping at switch-on.
All outputs are open- and short-circuit proof, and are protected against overvoltages by means of built-in suppressor diodes. The
output can be inhibited by a logic signal applied to pin 18 (i). 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 for 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, built,
and safety-approved to the international safety standards IEC/EN 60950-1. They are particulary suitable for railway applications
and comply with EN 50155 and EN 50121-3-2.
The case design allows operation at nominal load up to 71 °C with natural cooling. If forced cooling is provided, the ambient
temperature may exceed 71 °C, but the case temperature must remain below 95 °C.
A temperature sensor generates an inhibit signal, which disables the outputs when 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 individual applications.
The converters may either be plugged into a 19” DIN-rack system according to IEC 60297-3, or be chassis mounted.
Important: For applications requiring compliance with IEC/EN 61000-3-2 (harmonic distortion), please use our LK4000 or LK5000
Series with incorporated power factor correction (PFC).
Model Selection
Non-standard input/output configurations or special customer adaptations are available on request.
Table 1a: Models AK
Output 1
Output 2
Input Voltage
Efficiency 1
Options
Vo nom
Io nom
Vo nom
Io nom
Vi min – Vi max
ηmin
[VDC]
[A]
[VDC]
[A]
8 - 35 VDC
[%]
5.1
12
15
24
20
10
8
-
-
-
-
-
-
-
-
AK1001-9RG
AK1301-9RG
AK1501-9RG
AK1601-9RG
79
81
-7 ⁴, P, D, V ², T, B, B1, non-G
-7 ⁴, P, D, T, B, B1, non-G
83
5
84.5
12
15
24
5
4
12 3
15 3
24 3
5
4
AK2320-9RG
AK2540-9RG
AK2660-9RG
79
80.5
80.5
2.5
2.5
1
Min. efficiency at Vi nom, Io nom and TA = 25 °C. Typical values are approximately 2% better.
Option V for models with 5.1 V outputs; excludes option D
Second output semi-regulated
2
3
4
AK, BK, FK models are available as -7 or -9, but without opt. E. The other models CK, DK, EK, LK are available as -7 or -9E (but not -7E).
NFND: Not for new designs.
Preferred for new designs
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K Series
150 W DC-DC and AC-DC Converters
Table 1b: Models BK, FK, CK
Output 1
Output 2
Input Voltage Effic.1 Input Voltage Effic.1 Input Voltage Effic.1
Options
Vo nom
Io nom
Vo nom
Io nom
Vi min – Vi max
ηmin
Vi min – Vi max
ηmin
Vi min – Vi max
ηmin
[VDC]
[A]
[VDC]
[A]
14 - 70 VDC
[%]
20 - 100 VDC
[%]
28 - 140 VDC
[%]
5.1
12
15
24
25
12
10
6
-
-
-
-
-
-
-
-
BK1001-9RG
BK1301-9RG
BK1501-9RG
BK1601-9RG
80.5
83
FK1001-9RG
FK1301-9RG
FK1501-9RG
FK1601-9RG
80
82
85
86
CK1001-9RG
CK1301-9RG
CK1501-9RG
CK1601-9RG
80
82
85
86
-7 ⁴, P, D, V ², T, B, B1, non-G
-7 ⁴, P, D, T, B, B1, non-G
84
85
12
15
24
6
5
3
12 3
15 3
24 3
6
5
3
BK2320-9RG
BK2540-9RG
BK2660-9RG
80
82
82
FK2320-9RG
FK2540-9RG
FK2660-9RG
81
83
84
CK2320-9RG
CK2540-9RG
CK2660-9RG
81
84
84
Table 1c: Models DK, EK, LK
Output 1
Output 2
Input Voltage Effic.1 Input Voltage Effic.1 Input Voltage Effic.1
Vi min – Vi max
Options
Vo nom
Io nom
Vo nom
Io nom
Vi min – Vi max
ηmin
Vi min – Vi max
ηmin
ηmin
88 - 372 VDC
100 - 240 VAC
[VDC]
[A]
[VDC]
[A]
44 - 220 VDC
[%]
67 - 385 VDC
[%]
[%]
5.1
12
DK1001-9ERG
DK1301-9ERG
DK1740-9ERG 5
DK1501-9ERG
DK1601-9ERG
---
---
83
---
84
86
LK1001-9ERG
LK1301-9ERG
LK1740-9ERG 5
LK1501-9ERG
LK1601-9ERG
25
12
10
10
6
-
-
-
-
-
-
-
-
-
-
80
83
83
85
86
79
83
83
84
85
EK1301-9ERG
---
12.84 5
15
-7 ⁴, P, D, V ², T, B, B1, non-G
-7 ⁴, P, D, T, B, B1, non-G
EK1501-9ERG
EK1601-9ERG
24
12
15
24
12 3
15 3
24 3
DK2320-9ERG
DK2540-9ERG
DK2660-9ERG
DK2740-9ERG 6
EK2320-9ERG
EK2540-9ERG
EK2660-9ERG
---
LK2320-9ERG
LK2540-9ERG
LK2660-9ERG
LK2740-9ERG 6
6
5
6
5
81
83
84
84
82
83
84
---
81
83
82
83
3
3
,
25.68 6
25.68 3
6
2.5
2.5
1
Min. efficiency at Vi nom, Io nom and TA = 25 °C. Typical values are approximately 2% better.
Option V for models with 5.1 V outputs; excludes option D
Second output semi-regulated
AK, BK, FK models are available as -7 or -9, but without opt. E. The other models CK, DK, EK, LK are available as -7 or -9E (but not -7E).
Battery loader for 12 V batteries. Vo is controlled by the battery temperature sensor (see Accessories) within 12.62 – 14.12 V. Options P
and D are not available.
Battery loader for 24 V (and 48 V batteries with series-connected outputs). Vo is controlled by the battery temperature sensor (see
Accessories) within 25.25 – 28.25 V (50.5 – 56.5 V for 48 V batteries). Options P and D are not available.
Option K is available only for LK with 5.1 V output in order to avoid the H15S4 connector. Efficiency is approx. 1.5% worse.
2
3
4
5
6
7
NFND: Not for new designs.
Preferred for new designs
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K Series
150 W DC-DC and AC-DC Converters
Part Number Description
CK 2 5 40 -9 E R D3 T B1 G
Operating input voltage Vi:
8– 35 VDC ............................................................... AK
14– 70 VDC ............................................................. BK
20– 100 VDC ........................................................... FK
28– 140 VDC ...........................................................CK
44 – 220 VDC ...........................................................DK
67 – 385 VDC ........................................................... EK
100– 240 VAC (rated voltage) or 88 – 372 VDC ..... LK
Number of outputs............................................................1, 2
Nominal voltage of output 1 (main output) Vo1 nom
5.1 V .............................................................................0
12 V .............................................................................3
15 V .............................................................................5
24 V .............................................................................6
Other voltages1 .......................................................7, 8
Nominal voltage of output 2 Vo2 nom
None (single-output models) .......................................01
12 V, 12 V ...................................................................20
15 V, 15 V....................................................................40
24 V, 24 V....................................................................60
Other specifications or additional features1 ....... 21– 99
Operational ambient temperature range TA:
–25 to 71 °C................................................................ -7
–40 to 71 °C.................................................................-9
Other1 ...............................................................-0, -5, -6
Auxiliary functions and options:
Inrush current limitation ..............................................E2
Output voltage control input ..................................... R3
Potentiometer (output voltage adjustment) ................P3
Vi / Vo monitor (D0– DD, to be specified1) ................. D4
ACFAIL signal ........................................................... V ⁴
Current share control.....................................................T
H15 standard connector for 5.1 V output models..... K ⁵
Cooling plate standard case................................B or B1
Cooling plate for long case 220 mm1 .......................B21
RoHS-compliant for all 6 substances .......................... G
1
Customer-specific models
Option E is mandatory for all -9 models, except AK, BK, FK.
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 single-output models with 5.1 V only.
Option K is available for single-output models with 5.1 V output to avoid the expensive H15-S4 connector.
2
3
4
5
Note: The sequence of options must follow the order above. This part number description is descriptive only; it is not intended for creating
part numbers.
Example: CK2540-9ERD3TB1G: DC-DC converter, operating input voltage range 28 – 140 VDC, 2 electrically isolated outputs,
each providing 15 V, 5 A, input current limiter E, control input R to adjust the output voltages, undervoltage monitor D3,
current share feature T, cooling plate B1, and RoHS-compliant for all six substances.
Product Marking
Basic type designation, applicable approval marks, CE mark, warnings, pin designation, 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 (version), and date of production.
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K Series
150 W DC-DC and AC-DC Converters
Functional Description
The input voltage is fed via an input fuse, an input filter, a bridge rectifier (LK models only), and an inrush current limiter to the
input capacitor. This capacitor sources a single-transistor forward converter with a special clamping circuit and provides also 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 Vo1 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 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.
Standard models with a single 5.1 V output have a synchronous rectifier to provide good efficiency.
03057b
Opt. P
16
18
R
i
26
Vi+
4
N
Cꢀ
28
4
20 D/V
2
Ci
+
T
22
12
4
1
S+
Cꢀ
Vo+
Vo–
6
8
Cꢀ
10
3
30
32
4
L
Vi–
S–
14
Cꢀ
24
–
+
ꢁ
²
ꢂ
⁴
Transient suppressor (VDR)
Suppressor diode (AK, BK, FK models)
Inrush current limiter (NTC, only for models with TA min = –25 °C ) or option E (for CK, DK, EK, LK models only)
LK models only
Fig. 1
Block diagram of single-output converters
03058b
Opt. P
16
R
26
18
i
Cꢂ
4
N
Vi+
28
4
20 D
2
Ci
+
22
12
T
1
Cꢂ
Vo1+
14 Vo1–
Cꢂ
Cꢂ
4
Vo2+
6
3
30
32
4
L
Vi–
8
Vo2–
Cꢂ
Cꢂ
10
24
–
+
ꢀ
²
ꢁ
⁴
Transient suppressor (VDR)
Suppressor diode (AK, BK, FK models)
Inrush current limiter (NTC, only for models with TA min = –25 °C ) or option E (for CK, DK, EK, LK models only)
LK models only
Fig. 2
Block diagram of double-output models
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K Series
150 W DC-DC and AC-DC Converters
Electrical Input Data
General conditions:
- TA = 25 °C, unless TC is specified.
- Pin 18 connected to pin 14, Vo adjusted to Vo nom (if option P); R input not connected.
- Sense line pins S+ and S– connected to Vo+ and Vo– respectively.
Table 2a: Input data
Model
AK
BK
FK
Unit
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
Vi
Operating input voltage
8
35
14
70
20
100
Io = 0 – Io max
TC min – TC max
VDC
A
Vi nom Nominal input voltage
15
30
50
1
Ii
Input current
Vi nom, Io nom
9.0
6.0
3.75
Pi 0
No-load input power
Vi min – Vi max
2.5
1.5
2.5
1.5
2.5
1.5
W
Pi inh Idle input power
Ri Input resistance
RNTC NTC resistance 2
Unit inhibited
65
100
300
70
mΩ
TC = 25 °C
no NTC
1040
A
no NTC
no NTC
1500
B
Ci
Input capacitance
Conducted input RFI
Radiated input RFI
832
370
A
1200
µF
EN 55022,
Vi nom, Io nom
Vi RFI
A
A
A
Input voltage limits
without damage
Vi abs
0
40
0
84
0
100
VDC
Table 2b: Input data
Model
CK
typ max min
DK
typ max min
EK
typ max min
LK
Unit
Characteristics
Conditions
min
typ
max
28
140
44
220
67
385
88
372
VDC
VAC
VDC
A
Vi
Operating input voltage
Io = 0 – Io max
TC min – TC max
854 (230) 2644
Vi nom Nominal input voltage
60
110
1.6
220
0.8
3104
1
Ii
Input current
Vi nom, Io nom
3.0
0.57
Pi 0
No-load input power
Vi min – Vi max
2.5
1.5
2.5
1.5
2.5
1.5
2.5
W
Pi inh Idle input power
Ri Input resistance
RNTC NTC resistance 2
Unit inhibited
4.5
150
170
264
180
216
480
mΩ
TC = 25 °C
1000
2000
330
B
4000
270
B
4000
Ci
Input capacitance
Conducted input RFI
Radiated input RFI
960 1200
216
270
B
µF
B
A
EN 55022,
Vi nom, Io nom
Vi RFI
A
A
A
Input voltage limits
without damage
Vi abs
0
154
0
4003
0
400 -400
400
VDC
1
Both outputs of double-output models are loaded with Io nom
.
2
Valid for -7 versions without option E (-9 versions exclude NTC). This is the nominal value at 25 °C and applies to cold converters at initial
switch-on cycle. Subsequent switch-on/off cycles increase the inrush current peak value.
For 1 s max.
Rated input voltage range is 100 – 240 VAC (nominal 230 VAC). Nominal frequency range is 50 – 60 Hz; operating frequency range is
47 – 440 Hz (440 Hz for 115 V mains). For frequencies ≥ 63 Hz, refer to Installation Instructions.
3
4
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K Series
150 W DC-DC and AC-DC Converters
Input Transient Protection
A suppressor diode or a VDR (depending upon the input voltage range) together with the input fuse and a symmetrical input
filter form an effective protection against high input transient voltages which, typically occur in most installations, but especially
in battery-driven mobile applications.
Standard nominal battery voltages are: 12, 24, 36, 48, 60, 72, 110, and 220 V. Railway batteries are specified with a tolerance of
–30% to +25%, with short excursions up to ±40%.
In certain applications, additional surges according to RIA12 are specified. The power supply must not switch off during these
surges, and since their energy can practically not be absorbed, an extremely wide input range is required. The EK input range for
110 V batteries has been designed and tested to meet this requirement.
Input Fuse
A fuse mounted inside the converter protects against severe defects. This fuse may not fully protect the converter, when the input
voltage exceeds 200 VDC. In applications, where the converters operate at source voltages above 200VDC, an external fuse or
a circuit breaker at system level should be installed.
Table 3: Fuse Specification
Model
AK
Fuse type
fast-blow1
fast-blow1
slow-blow2
slow-blow2
slow-blow2
slow-blow2
Reference
Littlefuse 314
Littlefuse 314
Schurter SPT
Schurter SPT
Schurter SPT
Schurter SPT
Rating
30 A, 125 V
25 A, 125 V
16 A, 250 V
12.5 A, 250 V
8 A, 250 V
4 A, 250 V
BK
FK
CK
DK
EK, LK
1
2
Fuse size 6.3 × 32 mm
Fuse size 5 × 20 mm
Inrush Current Limitation
The CK, DK, EK, and LK models incorporate an NTC resistor in the input circuitry, which at initial turn-on reduces the peak inrush
current value by a factor of 5 – 10, such protecting 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. See also Option E.
The inrush current peak value (initial switch-on cycle) can be determined by following calculation; see also fig. 3:
Vi source
_______________
Iinr p
=
(Rs ext + Ri + RNTC
)
I
i inr [A]
05108a
150
05109a
100
Rs ext
Iinr p
Ri
RNTC
CK
EK, LK
DK
+
Ci int
Vi source
50
0
0.1
2
3
t [ms]
1
Fig. 3
Fig. 4
Typical inrush current versus time at Vi max, Rext = 0 Ω.
For AK, BK, FK, and for application-related values,
use the formula in this section to get realistic results.
Equivalent input circuit
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K Series
150 W DC-DC and AC-DC Converters
Static Input Current Characteristics
Ii [A]
04044a
20
10
5
AK
BK
2
FK
CK
1
DK
EK
0.5
LK (DC input)
Vi
____
Vi min
1
2
3
4
5
Fig. 5
Typical input current versus relative input voltage
Reverse Polarity
The converters (except LK models) are not protected against reverse polarity at the input to avoid unwanted power losses.
In general, only the input fuse will trip.
LK models are fully protected by the built-in bridge rectifier.
Input Under-/Overvoltage Lockout
If the input voltage remains below approx. 0.8 Vi min or exceeds approx. 1.1 Vi max, an internally generated inhibit signal disables
the output(s). When checking this function, the absolute maximum input voltage Vi abs should be observed. Between Vi min and the
undervoltage lock-out level the output voltage may be below the value defined in table Electrical Output data.
Hold-Up Time
th [ms]
04045a
EK
100
th [ms]
CK/FK
DK
04049a
100
10
1
AK
BK
10
2
Vi
_______
Vi
____
0.1
Vi min
1
2
3
4
1
2
3
4
5
6
Vi min
Fig. 6a
Fig. 6b
Typical hold-up time th versus relative DC input voltage.
Vi/Vi min. DC-DC converters require an external series diode
in the input path, if other loads are connected to the same
input supply lines.
Typical hold-up time th versus relative AC input voltage
(LK models)
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K Series
150 W DC-DC and AC-DC Converters
Electrical Output Data
General Conditions:
– TA = 25 °C, unless TC is specified.
– Pin 18 (i) connected to pin 14 (S– or Vo1–), R input not connected, Vo adjusted to Vo nom (option P),
– Sense line pins 12 (S+) and 14 (S–) connected to pins 4 (Vo1+) and 8 (Vo1–), respectively.
Table 5: Output data of single-output models
Model
AK – LK1001
AK – LK1301/17405
AK – LK1501
15 V
AK – LK1601
24 V
Unit
Nom. output voltage
Characteristics
5.1 V
12 V / 12.84 V5
Conditions
min
typ
max
min
typ
max
min
typ
max
min
typ
max
24.14
Vo
Vo BR
Output voltage
Vi nom, Io nom
5.07
6.0
5.13 11.935
12.075 14.91
15.09 23.86
28.5
V
A
Output protection
15.2/17.5 5
19.6
(suppressor diode)7
Vi min – V
i max
Io nom Output current nom. 1
206/25
10 5, 6/12
86/10
56/6
TC min – TC max
i min – V
Io L
Vo
Output current limit
Low frequency8
V
216/26
10.2 5, 6/12.2
8.66/10.2
5.26/6.2
i max
5
5
5
5
Vi nom, Io nom
Output
Switching frequ.
Total incl. spikes
10
80
5
5
5
mVpp
noise3
BW = 20 MHz
50
70
100
V
i min – V
Static line regulation
with respect to Vi nom
i max
∆Vo u
±15
±20
±25
±30
Io nom
V
i nom
∆Vo l Static load regulation 2
-202
-30
-40
-50
mV
(0.1 – 1)Io nom
Voltage
deviation
Vo d
±150
0.3
±130
0.4
±130
0.4
±150
0.3
9
Dynamic
load
V
i nom
Recovery
Io nom ↔ 0.5 Io nom
regulation9
td
ms
9
time
Io nom
Temperature coefficient of
α v o
±0.02
±0.02
±0.02
±0.02
%/K
output voltage 4
TC min – TC max
1
If the output voltages are increased above Vo nom through R-input control, option P setting, remote sensing or option T, the output currents
should be reduced accordingly so that Po nom is not exceeded.
See fig. 7 below !
Measured according to IEC/EN 61204 with a probe according to annex A
For battery charger applications, a defined negative temperature coefficient can be provided by using a temperature sensor (see
Accessories), but we recommend choosing the special battery charger models.
Especially designed for battery charging using the temperature sensor (see Accessories). Vo is set to 12.84 V ±1% (R-input open)
Values for AK models
2
3
4
5
6
7
Breakdown voltage of the incorporated suppressor diode (1 mA; 10 mA for 5 V output). Exceeding Vo BR is dangerous for the
suppressor diode.
LK models only (twice the input frequency)
8
9
See Dynamic load regulation
V
[V]
o
Models with diodes
5.1
Models with synchr.
rectifier
JM049
I /I
1.0
0.15
o
o nom
Fig. 7
Output voltage regulation for models with synchronous rectifier and with diode rectifier
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K Series
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Table 6a: Output data of double-output models. General conditions as per table 5.
Model (Nom. output voltage)
AK – LK2320 (2 x 12 V)
Output 1 Output 2
AK – LK2540 (2 x 15 V)
Output 1 Output 2
Unit
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
min
typ
max
Vo
Output voltage
V
i nom, Io1 nom, Io2 nom 11.93
12.07 11.82
15.2
12.18 14.91
19.6
15.09 14.78
19.6
15.22
V
A
Output protection
(suppressor diode)
8
Vo BR
15.2
V
i min – V
i max
Io nom
Io L
Output current nom. 2
Output current limit10
51/6
51/6
41/5
41/5
TC min – TC max
i min – V
V
5.21/6.2
5.21/6.2
5
4.21/5.2
4.21/5.2
i max
Low frequency9
5
5
5
Vi nom, Io nom
Output
noise3
Vo
Switching frequ.
Total incl. spikes
5
5
5
5
mVpp
BW = 20 MHz
40
40
50
50
V
i min – V
Static line regulation
with respect to Vi nom
i max
5
5
5
5
∆Vo u
∆Vo l
±20
±25
Io nom
V
i nom
mV
Static load regulation
Voltage
-40
-50
(0.1 – 1)Io nom
Vo d
td
±100
0.2
±150
±100
0.2
±150
V
4
Dynamic
deviation
i nom
load
regulation
Io1 nom ↔0.5 Io1 nom
0.5 Io2 nom
Recovery
ms
4
time
Io nom
Temperature coefficient of
α v o
±0.02
±0.02
%/K
output voltage 6
TC min – TC max
Table 6b: Output data of double-output models. General conditions as per table 5.
Model (Nom. output voltage)
AK – LK2660 / 2740(2 × 24 V / 2 × 25.68 V) 7
Unit
Output 1
Output 2
Characteristics
Conditions
min
i nom, Io1 nom, Io2 nom 23.867
typ
max
min
typ
max
Vo
Output voltage
V
24.147 23.647
24.367
V
A
Output protection
(suppressor diode)
8
Vo BR
28.5/347
28.5/347
V
i min – V
i max
Io nom
Io L
Output current nom. 2
Output current limit10
2.51, 7/3
2.71, 7/3.2
2.51, 7/3
2.71, 7/3.2
TC min – TC max
i min – V
V
i max
Low frequency9
5
5
Vi nom, Io nom
Output
noise3
Vo
Switching frequ.
Total incl. spikes
5
5
mVpp
BW = 20 MHz
80
80
V
i min – V
Static line regulation
with respect to Vi nom
i max
5
5
∆Vo u
∆Vo l
±30
Io nom
V
i nom
mV
Static load regulation
Voltage
-60
(0.1 – 1)Io nom
Vo d
td
±100
0.2
±150
V
4
Dynamic
deviation
i nom
load
regulation
Io1 nom ↔0.5 Io1 nom
0.5 Io2 nom
Recovery
ms
4
time
Io nom
Temperature coefficient of
α v o
±0.02
%/K
output voltage 6
TC min – TC max
1
Values for AK models
2
If the output voltages are increased above Vo nom via R-input control, option P setting, remote sensing, or option T, the output currents
should be reduced accordingly, so that Po nom is not exceeded.
Measured according to IEC/EN 61204 with a probe annex A
See Dynamic Load Regulation
See Output Voltage Regulation of Double-Output Models
For battery charger applications, a defined negative temperature coefficient can be provided by using a temperature sensor; see Accessories.
Especially designed for battery charging using the battery temperature sensor; see Accessories. Vo1 is set to 25.68 V ±1% (R-input open-circuit).
Breakdown voltage of the incorporated suppressor diodes (1 mA). Exceeding Vo BR is dangerous for the suppressor diodes.
LK models only (twice the input frequency)
3
4
5
6
7
8
9
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K Series
150 W DC-DC and AC-DC Converters
Thermal Considerations
If a converter is located in free, quasi-stationary air (convection cooling) at the indicated maximum ambient temperature TA max (see
table Temperature specifications) and is operated at its nominal input voltage and output power, the temperature measured at the
Measuring point of case temperature TC (see Mechanical Data) will approach the indicated value TC max after the warm-up phase.
However, the relationship between TA and TC depends heavily upon the conditions of operation and integration into a system.
The thermal conditions are influenced by input voltage, output current, airflow, and temperature of surrounding components and
surfaces. TA max is therefore, contrary to TC max, an indicative value only.
Caution: The installer must ensure that under all operating conditions TC remains within the limits stated in the table Temperature specifications.
Notes: Sufficient forced cooling or an additional heat sink allows TA to be higher than 71 °C (e.g., 85 °C), as long as TC max is not exceeded.
Details are specified in fig. 8.
I /I
o o nom
1.0
0.8
Forced
Convection cooling
cooling
0.6
T
C max
0.4
0.2
0
T
[°C]
A
T
50
60
70
80
90
100
A min
Fig. 8
Output current derating versus temperature for -7 and -9 models.
Thermal Protection
A temperature sensor generates an internal inhibit signal, which disables the outputs, when the case temperature exceeds TC max
.
The outputs automatically recover, when the temperature drops below this limit.
Continuous operation under simultaneous extreme worst-case conditions of the following three parameters should be avoided:
Minimum input voltage, maximum output power, and maximum temperature.
Output Protection
Each output is protected against overvoltages, which could occur due to a failure of the internal control circuit. Voltage suppressor
diodes (which under worst case condition may become a short circuit) provide the required protection. The suppressor diodes are
not designed to withstand externally applied overvoltages. Overload at any of the outputs will cause a shut-down of all outputs.
A red LED indicates the overload condition.
Note: Vo BR is specified in Electrical Output Data. If this voltage is exceeded, the suppressor diode generates losses and may become a short circuit.
Parallel and Series Connection
Single- or double-output models with equal output voltage can be connected in parallel using option T (current sharing). If the T pins
are interconnected, all converters share the output current equally.
Single-output models and/or main and second outputs of double-output models can be connected in series with any other (similar) output.
Notes:
– Parallel connection of double-output models should always include both, main and second output to maintain good regulation.
– Not more than 5 converters should be connected in parallel.
– Series connection of second outputs without involving their main outputs should be avoided, as regulation may be poor.
– The maximum output current is limited by the output with the lowest current limitation when several outputs are connected in series.
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K Series
150 W DC-DC and AC-DC Converters
Vo/Vo nom
0.98
0.5
Io1
IoL
05098a
0
Io/Io nom
0.5
1.0
Fig. 9
Output characteristic Vo versus Io (single-output models or double-output models with parallel-connected outputs).
Output Voltage Regulation
Figure 10 applies to single-output or double-output models with parallel-connected outputs.
For independent configuration, output 1 is under normal conditions regulated to Vo nom, irrespective of the output currents.
Vo2 depends upon the load distribution. If both outputs are loaded with more than 10% of Io nom, the deviation of Vo2 remains within
±5% of Vo1. Figures 11 to 13 show the regulation depending on load distribution.
Two outputs of a double-output model connected in parallel behave like the output of a single-output model.
Note: If output 2 is not used, connect it in parallel with output 1! This ensures good regulation and efficiency.
V
[V]
o2
Vo
05105a
Vod
12.6
12.4
12.2
12.0
11.8
11.6
11.4
11.2
Vo ±1%
Vod
Vo ±1%
Io1 = 6.0 A
Io1 = 4.5 A
Io1 = 3.0 A
Io1 = 1.5 A
Io1 = 0.6 A
td
td
t
Io/Io nom
1
0.5
≥ 10 µs
≥ 10 µs
0
t
0
1
2
3
4
5
6
7
I
[A]
o2
05102c
Fig. 10
Fig. 11
Models with 2 outputs 12 V: Vo2 versus Io2 with various Io1 (typ)
Typical dynamic load regulation of Vo.
V
[V]
V
[V]
o2
o2
05106a
05107a
26
25.5
25
15.75
15.5
Io1 = 5.0 A
o1 = 3.75 A
o1 = 2.5 A
o1 = 1.25 A
Io1 = 3 A
I
I
I
I
I
I
I
o1 = 2 A
o1 = 1 A
o1 = 0.5 A
o1 = 0.3 A
15.25
15.0
Io1 = 0.5 A
24.5
24
14.75
14.5
23.5
23
14.25
14.0
I
[A]
I
[A]
0
1
2
3
4
5
6
0
0.5
1
1.5
2
2.5
3
3.5
o2
o2
Fig. 12
Models with 2 outputs 15 V: Vo2 versus Io2 with various Io1 (typ)
Fig. 13
Models with 2 outputs 24 V: Vo2 versus Io2 with various Io1 (typ)
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K Series
150 W DC-DC and AC-DC Converters
Auxiliary Functions
Inhibit for Remote On/Off
The outputs may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied between the inhibit input i (pin 18)
and pin 14 (S– or Vo1–). In systems with several converters, this feature can be used to control the activation sequence of the
converters. If the inhibit function is not required, connect the inhibit pin 18 with pin 14!
Note: If pin 18 is not connected, the output is disabled.
Table 7: Inhibit characteristics
06031a
Characteristics
Conditions min
typ max Unit
Vo+
i
Vi+
Vi–
Vo = on
Vo = off
-50
Vi min – Vi max
2.4
0.8
V
50
I
Vinh Inhibit voltage
inh
18
14
Iinh
tr
Inhibit current
Rise time
Vinh = 0
-400
µA
ms
V
inh
30
Depending on Io
tf
Fall time
S–/Vo1–
Fig. 14
Definition of Vinh and Iinh.
I
[mA]
inh
Vinh = 2.4 V
Vinh = 0.8 V
2.0
06001
Vo/Vo nom
1
1.6
1.2
0.1
0
t
0.8
0.4
tf
tr
Vo = on
Vo = off
Inhibit
1
0
–0.4
–0.8
t
0
0
V
[V]
inh
–40
–20
20
40
Fig. 15
Fig. 16
Typical inhibit current Iinh versus inhibit voltage Vinh
Output response as a function of inhibit control
Sense Lines (Single Output Models)
Important: Sense lines must always be connected! Incorrectly connected sense lines may activate the overvoltage protection resulting in a
permanent short-circuit of the output.
This feature allows for compensation of voltage drops across the connector contacts and if necessary, across the load lines. We
recommend connecting the sense lines directly at the female connector.
To ensure correct operation, both sense lines (S+, S–) should be connected to their respective power outputs (Vo+ and Vo–), and
the voltage difference between any sense line and its respective power output (as measured on the connector) should not exceed
the following values:
Table 7: Maximum voltage compensation allowed using sense lines
Output voltage
Total voltage difference
between sense lines and
their respective outputs
Voltage difference
between Vo– and S–
5.1 V
< 0.5 V
< 1.0 V
< 0.25 V
< 0.25 V
12 V, 15 V, 24 V
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K Series
150 W DC-DC and AC-DC Converters
Programmable Output Voltage (R-Function)
As a standard feature, the converters offer an adjustable output voltage, identified by letter R in the type designation. The control
input R (pin 16) accepts either a control voltage Vext or a resistor Rext to adjust the desired output voltage. When input R is not
connected, the output voltage is set to Vo nom
.
a) Adjustment by means of an external control voltage Vext between pin 16 (R) and pin 14 (S–):
The control voltage range is 0 – 2.75 VDC and allows for an adjustment in the range of approximately 0 – 110% of Vo nom
.
Vo
Vext ≈ –––––– • 2.5 V
Vo nom
b) Adjustment by means of an external resistor:
Depending upon the value of the required output voltage, the resistor shall be connected
either: Between pin 16 and pin 14 to achieve an output voltage adjustment range of approximately 0 –100% of Vo nom
.
or: Between pin 16 and pin 12 to achieve an output voltage adjustment range of 100 – 110% of Vo nom
.
05074a
Vi+
R
+
–
16
14
V
ext
06004a
S–/Vo1–
+
Vo2+
Vo2+
Vo2–
Vo2–
Vo1+
Vo1–
4
6
Vi–
Vi+
24 V
30 V
48 V
8
Vo1
Co
10
12
14
–
Rꢀext
Rext
S+/Vo1+
16
R
12
16
14
Rꢀ
R
ext
R
S–/Vo1–
ext
Vi–
Fig. 17
Fig. 18
Output voltage control for single-output models
Double-output models:
Wiring of the R-input for output voltages 24 V, 30 V, or 48 V with
both outputs in series. A ceramic capacitor (Co) across the load
Warnings:
– Vext shall never exceed 2.75 VDC.
– The value of R’ext shall never be less than the lowest value as indicated in table R’ext (for V0 > V0 nom) to avoid damage to the converter!
Notes:
– The R-Function excludes option P (output voltage adjustment by potentiometer).
If the output voltages are increased above Vo nom via R-input control, option P setting, remote sensing, or option T, the output currents should
be reduced, so that Po nom is not exceeded.
– With double-output models, the second output follows the voltage of the controlled main output.
– In case of parallel connection the output voltages should be individually set within a tolerance of 1 – 2%.
Test Sockets
Test sockets (pin diameter 2 mm) for measuring the main output voltage Vo or Vo1 are located at the front of the converter.
The positive test socket is protected by a series resistor (see: Functional Description, block diagrams).
The voltage measured at the test sockets is slightly lower than the value at the output terminals.
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K Series
150 W DC-DC and AC-DC Converters
Table 8a: Rext for Vo < Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R’ext = not fitted
Vo nom = 5.1 V
Vo nom = 12 V
Vo [V]1
Vo nom = 15 V
Vo [V]1
Vo nom = 24 V
Vo [V]1
Vo [V]
Rext [kΩ]
Rext [kΩ]
Rext [kΩ]
Rext [kΩ]
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0.432
0.976
1.65
2.61
3.83
5.76
8.66
14.7
30.1
200
2
3
4
5
6
7
8
9
10
11
4
6
8
10
12
14
16
18
20
22
0.806
1.33
2
2.87
4.02
5.62
8.06
12.1
20
2
4
6
8
9
10
11
12
13
14
4
8
0.619
1.47
2.67
4.53
6.04
8.06
11
16.2
26.1
56.2
4
6
8
10
12
14
16
18
20
22
8
0.81
1.33
2.0
2.87
4.02
5.62
8.06
12.1
20
12
16
20
24
28
32
36
40
44
12
16
18
20
22
24
26
28
42.2
44.2
Table 8b: R’ext for Vo > Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); Rext = not fitted
Vo nom = 5.1 V
Vo nom = 12 V
Vo [V]1
Vo nom = 15 V
Vo [V]1
Vo nom = 24 V
Vo [V]
R’ext [kΩ]
R’ext [kΩ]
R’ext [kΩ]
Vo [V]1
R’ext [kΩ]
5.15
5.20
5.25
5.30
5.35
5.40
5.45
5.50
432
215
147
110
88.7
75
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
13.0
13.2
24.2
24.4
24.6
24.8
25.0
25.2
25.4
25.6
26.0
26.4
1820
931
619
475
383
316
274
243
196
169
15.2
15.4
15.6
15.8
16.0
16.2
16.4
16.5
30.4
30.8
31.2
31.6
32.0
32.4
32.8
33.0
1500
768
523
392
316
267
232
221
24.25
24.50
24.75
25.00
25.25
25.50
25.75
26.00
26.25
26.40
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
52.5
52.8
3320
1690
1130
845
698
590
511
442
402
383
64.9
57.6
1
First column: Vo or Vo1; second column: double-output models with series-connected outputs
Display Status of LEDs
06002a
Vo1 > 0.95 to 0.98 Vo1 adj
OK
i
Io L
LEDs
“OK”, “i ” and “Io L” status versus input voltage
Conditions: Io ≤ Io nom, TC ≤ TC max, Vinh ≤ 0.8 V
Vi uv = undervoltage lock-out, Vi ov = overvoltage lock-out
Vi
Vi uv Vi min
Vi max Vi ov Vi abs
Vo1 > 0.95 to 0.98 Vo1 adj Vo1 < 0.95 to 0.98 Vo1 adj
OK
LEDs “OK” and “Io L” status versus output current
Conditions: Vi min – Vi max, TC ≤ TC max, Vinh ≤ 0.8 V
Io L
Io
Io nom
IoL
i
i
LED “i” versus case temperature
Conditions: Vi min – Vi max , Io ≤ Io nom, Vinh ≤ 0.8 V
TC
TC max
TPTC threshold
Vinh threshold
LED “i ” versus Vinh
Conditions: Vi min – Vi max, Io ≤ Io nom, TC ≤ TC max
Vi inh
+0.8 V
+2.4 V
+50 V
-50 V
LED off
LED Status undefined
LED on
Fig. 19
LED indicators
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K Series
150 W DC-DC and AC-DC Converters
Battery Charging /Temperature Sensor
All converters with an R-input are suitable for battery charger applications, but we recommend choosing the models especially
designed for this application DK/LK1740 or DK/LK2740; see Model Selection.
For optimal battery charging and life expectancy of the battery an external temperature sensor can be connected to the R-input.
The sensor is mounted as close as possible to the battery and adjusts the output voltage according to the battery temperature.
Depending upon cell voltage and the temperature coefficient of the battery, different sensor types are available, see Accessories.
Cell voltage [V]
06139b
2.45
03099d
2.40
Vo+
Vo–
Power
supply
Load
Input
2.35
R
2.30
2.25
2.20
2.15
2.10
–
+
+
Vo safe
Battery
Temperature sensor
–20
–10
0
10
20
30
40
50 °C
VC = 2.27 V, –3 mV/K
VC = 2.23 V, –3 mV/K
VC = 2.27 V, –3.5 mV/K
VC = 2.23 V, –3.5 mV/K
Fig. 20
Fig. 21
Connection of a temperature sensor
Trickle charge voltage versus temperature for defined temp.
coefficient. Vo nom is the output voltage with open R-input.
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K Series
150 W DC-DC and AC-DC Converters
Electromagnetic Compatibility (EMC)
A metal oxide VDR together with the input fuse and an input filter form an effective protection against high input transient voltages,
which typically occur in most installations. The converters have been successfully tested to the following specifications:
Electromagnetic Immunity
Table 9: Electromagnetic immunity (type tests)
Phenomenon
Standard Level Coupling mode 1 Value
applied
Waveform
Source Test procedure
imped.
In
Perf.
oper. crit.2
Supply related
surge
RIA 123
A4
3.5 VBat
2/20/2 ms
0.1/1/0.1 s
10/100 μs
5/50 μs
+i/–i
0.2 Ω
5 Ω
1 positive surge
yes
yes
A
B
1.5 VBat
960 Vp
Direct transients
C
D3
1800 Vp
3600 Vp
4800 Vp
8400 Vp
1800 Vp
3600 Vp
4800 Vp
8400 Vp
E
+i/–i, –i/c
0.5/5 μs
F
0.1/1 μs
G3
0.05/0.1 μs
5/50 μs
5 pos. & 5 neg.
B
Indirect couples
transients
H
100 Ω
J
0.5/5 μs
+o/c, –o/c
K
0.1/1 μs
L
0.05/0.1 μs
Electrostatic
discharge (to case) 61000-4-2
IEC/EN
contact discharge ±8000 Vp
330 Ω 10 pos. & 10 neg.
150 pF discharges
4 5
x 6
1/50 ns
yes
yes
A
A
air discharge
antenna
±15000 Vp
20 V/m
20 V/m
10 V/m
5 V/m
Electromagnetic
field
IEC/EN
61000-4-3
AM 80% / 1 kHz
N/A
N/A
80 – 1000 MHz
800 – 1000 MHz
1400 – 2100 MHz
2100 – 2500 MHz
7
antenna
AM 80% / 1 kHz
yes
yes
yes
A
A
A
10 V/m
50% duty cycle,
200 Hz rep. rate
3
antenna
N/A
900 ±5 MHz
Electrical fast
transients / burst
IEC/EN
61000-4-4
3 8
capacitive, o/c
±2000 Vp
±4000 Vp
60 s positive
60 s negative
transients per
coupling mode
burstsof 5/50ns;
2.5 / 5 kHz over 15 ms;
burst period: 300 ms
50 Ω
±i/c, +i/–i
direct
4
Surges
IEC/EN
61000-4-5
5 pos. & 5 neg.
surges per
coupling mode
±i/c
±2000 Vp
±1000 Vp
12 Ω
2 Ω
3 9
1.2 / 50 µs
yes
A
+i/–i
Conducted
disturbances
IEC/EN
61000-4-6
10 VAC
(140 dBµV)
3 10
3 11
i, o, signal wires
-
AM 80% / 1 kHz
150 Ω 0.15 – 80 MHz
yes
yes
A
A
Power frequency
magnetic field
IEC/EN
61000-4-8
300 A/m
60 s in all 3 axes
1
i = input, o = output, c = case
A = normal operation, no deviation from specs.; B = temporary loss of function or deviation from specs possible
RIA 12 covers or exceeds IEC 60571-1 and EN 50155:2017. Surge D corresponds to EN 50155:2017, waveform A; surge G corresponds
to EN 50155:2001, waveform B
Only met with extended input voltage range of CS (for 48 V battery) and ES (for 110 V battery) model types. Such CS models are available
on customer’s request. Standard DS models types (on 110 V battery) will shut down during the surge and recover automatically.
Exceeds EN 50121-3-2:2015 table 6.3 and EN 50121-4:2016 table 2.4.
Corresponds to EN 50121-3-2:2015 table 6.1 and exceeds EN 50121-4:2016 table 2.1.
Corresponds to EN 50121-3-2:2015 table 6.2 and EN 50121-4:2016 table 2.2 (compliance with digital communication devices).
Corresponds or exceeds EN 50121-3-2:2015 table 4.2 and EN 50121-4:2016 table 4.2.
Covers or exceeds EN 50121-3-2:2015 table 4.3 and EN 50121-4:2016 table 4.3.
2
3
4
5
6
7
8
9
10
11
Corresponds to EN 50121-3-2:2015 table 4.1 and EN 50121-4:2016 table 4.1 (radio frequency common mode).
Corresponds to EN 50121-4:2016 table 2.3.
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K Series
150 W DC-DC and AC-DC Converters
Electromagnetic Emissions
PMM 8000 PLUS: Peak, conducted Vi+, ꢀP
+
AV, 2009-11-20, 13:00
h
DK1601-9ERB1,
U
=110 V, U
=24 V I
= 6 A
dBµV
80
i
o
o
JM053
PMM 8000 PLUS: Peak, conducted Vi+, ꢀP
+
AV, 2009-11-20, 12:35 h
dBµV
BK1601-9R,
U
=30 V, U =24 V I
= 6 A
i
o
o
JM052a
80
EN 55022 A (qp)
EN 55022 A (av)
60
40
20
0
EN 55022 B (qp)
EN 55022 B (av)
60
40
20
0
0.2
0.5
1
2
5
10
20 MHz
0.2
0.5
1
2
5
10
20 MHz
Fig. 22a
Fig. 22b
Conducted emissions (peak/quasipeak and average) at the
phase input according to EN 55011/32, measured at Vi nom and
Io nom (BK1601-9R). The neutral line performs quite similar.
Conducted emissions (peak/quasipeak and average) at the
phase input according to EN 55011/32, measured at Vi nom and
Io nom (DK1601-9ERB1). The neutral line performs quite similar.
TꢀV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., ꢁP, 2009-11-20
TꢀV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., ꢁP, 2009-11-20
dBµV/m
dBµV/m
Testdistance 10 m, DK1601-9ERB1,
U
=110 V, U
=24 V I
= 6 A
Testdistance 10 m, BK1601-9R,
U
=24 V, U =24 V I
= 6 A
i
o
o
i
o
o
50
50
EN 55011 A
EN 55011 A
40
40
30
20
30
20
<25 dbµV/m
<25 dbµV/m
10
0
10
0
30
50
100
200
500
1000 MHz
30
50
100
200
500
1000 MHz
Fig. 23a
Fig. 23b
Typical radiated emissions according to EN 55011/32,
antenna 10 m distance, measured at Vi nom and Io nom
(BK1601-9R)
Typical radiated emissions according to EN 55011/32,
antenna 10 m distance, measured at Vi nom and Io nom
(DK1601-9ERB1)
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K Series
150 W DC-DC and AC-DC Converters
Immunity to Environmental Conditions
Table 10: Mechanical and climatic stress
Test method
Standard
Test Conditions
Temperature:
Relative humidity:
Duration:
Status
Cab Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
40±2 °C
Converter
not operating
93+2/-3
%
56 days
Kb
Fc
Salt mist, cyclic
sodium chloride
(NaCl) solution
IEC/EN 60068-2-52
Concentration:
Storage:
5% (30 °C) for 2 h
40 °C, 93% rel. humidity
3 cycles of 22 h
Converter
not operating
Duration:
Vibration
(sinusoidal)
IEC/EN 60068-2-6
MIL-STD-810D section 514.3
Acceleration amplitude:
0.35 mm (10 – 60 Hz)
5 gn = 49 m/s2 (60 - 2000 Hz)
10 – 2000 Hz
Converter
operating
Frequency (1 Oct/min):
Test duration:
7.5 h (2.5 h in each axis)
Fh
Random vibration
broad band (digital
control) & guidance
IEC/EN 60068-2-64
Acceleration spectral density: 0.05 gn2/Hz
Frequency band:
8 – 500 Hz
Converter
operating
Acceleration magnitude:
Test duration:
4.9 gn
rms
1.5 h (0.5 h in each axis)
50 gn = 490 m/s2
11 ms
Ea
Shock
(half-sinusoidal)
IEC/EN 60068-2-27
MIL-STD-810D section 516.3
Acceleration amplitude:
Bump duration:
Converter
operating
Number of bumps:
Acceleration amplitude:
Bump duration:
18 (3 in each direction)
5.1 gn
-
-
Shock
EN 50155:2007 clause 12.2.11,
EN 61373 sect. 10,
Converter
operating
30 ms
class B, body mounted 1
Number of bumps:
18 (3 in each direction)
2
Simulated long life
testing at increased
random vibration
levels
EN 50155:2007 clause 12.2.11,
EN 61373 sect. 8 and 9,
class B, body mounted 1
Acceleration spectral density: 0.02 gn /Hz
Frequency band:
Acceleration magnitude:
Test duration:
5 – 150 Hz
Converter
operating
0.8 gn rms
15 h (5 h in each axis)
1
Body mounted = chassis of a railway coach
Temperatures
Table 11: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)
Model
-52
-62
-7 (option)
-9
Unit
Characteristics
Conditions
min
- 25
- 25
- 40
max
50
min
- 25
- 25
- 40
max
60
min
- 25
- 25
- 40
max
min
- 40
- 40
- 55
max
TA
TC
TS
Ambient temperature
Converter operating
71
95 1
85
71
95 1
85
Case temperature 1
85 1
90 1
° C
Storage temperature
Not operating
85
85
1
2
Overtemperature lockout at TC > 95 °C
Customer-specific models
Reliability and Device Hours
Table 12: MTBF calculated according to MIL-HDBK 217F
Ratings at specified
case temperature
MTBF1
Model
Ground benign
40 °C
Ground fixed
Ground mobile
50 °C
Unit
40 °C
70 °C
38 000
LK2660-7
AK – LK
514 000
88 000
35 000
h
Device hours2
500 000
1
Calculated according to MIL-HDBK-217F-N2
Statistic values, based on an average of 4300 working hours per year, over 3 years in general field use.
2
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K Series
150 W DC-DC and AC-DC Converters
Mechanical Data
Dimensions in mm. The converters are designed to be inserted into a 19” rack, 160 mm long, according to IEC 60297-3.
7 TE
9 TE
3.27
159
4.5
09002e
Test sockets (+/–)
Option P (Vo
Option D (Vto
)
)
d
Option D (Vti
)
LED i (red)
LED OK (green)
LED oL (red)
I
Measuring point of
case temperature TC
50
42
27.38
(171.0 .... 171.9)
Main face
80
Front plate
Back plate
168.5
Ø
5 x 90°
= ꢀ 4.1
= ꢀ 3.5
Ø
2.8
Screw holes of the
frontplate
European
Projection
Mounting slots for chassis or wall mounting
Fig. 24
Aluminum case K02 with heat sink;
black finish (EP powder coated);
weight approx. 1.6 kg
Notes:
– d ≥ 15 mm, recommended minimum distance to next part in order to ensure proper air circulation at full output power.
– free air location: the converter should be mounted with fins in a vertical position to achieve maximum airflow through the heat sink.
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K Series
150 W DC-DC and AC-DC Converters
5
47.2
38.5
6.5
11027
European
Projection
11.8
±0.2
17.3
133.4
168
30
Fig. 25
Option B: Aluminum case K02 with large cooling plate; black finish (EP powder coated).
Suitable for front mounting.
Total weight approx. 1.3 kg
7 TE
3.27
4 TE
50
38.5
5
158
11.8
09003b
M 4
Measuring point of
case temperature TC
5
47.2
17.3
133.4
168
(171.0 ... 171.9)
Fig. 26
Option B1: Aluminum case K02 with small cooling plate; black finish (EP powder coated).
Suitable for mounting with access from the backside.
Total weight approx. 1.2 kg.
Note: Long case with option B2, elongated by 60 mm for 220 mm rack depth, is available on request (no LEDs, no test sockets).
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K Series
150 W DC-DC and AC-DC Converters
Safety and Installation Instructions
Connector Pin Allocation
The connector pin allocation table defines the electrical potentials and the physical pin positions on the H15 or H15-S4 connector.
The protective earth is connected by a leading pin (no. 24), ensuring that it makes contact with the female connector first.
10010b
Fixtures for connector
retention clips HZZ01209G
(see Accessories)
32
4
Connector type H15
Fixtures for connector
retention clips HZZ01209G
(see Accessories)
30/32
4/6
Connector type H15S4
Fig. 27
View of module’s male connectors
Table 13: H15 and H15-S4 connector pin allocation
Pin
Connector type H15-S4
Connector type H15
No.
AK1000 (all),
AK2000
BK – LK1301/1501/1601
BK – LK2000
BK – LK1001 except opt. K
BK – LK1001 with opt. K
4
Vo+
Vo2+
Vo2+
Vo2-
Vo2-
Vo1+
Vo1-
R1
Vo+
Vo-
Positive Output 1
Vo2+
Positive Output 2
Positive Output 1
Positive Output 2
Negative Output 2
6
Vo+
Vo-
Vo-
S+
8
Negative Output 1 Vo2-
Negative Output 2
Positive Output 1
Negative Output 1
10
12
14
16
18
S+
S1-
R1
i
Sense positive
Sense negative
Control of Vo
Inhibit
Vo1+
Vo1-
R1
Positive Sense
Negative Sense
Control of Vo
Inhibit
Positive Output 1
Negative Output 1
Control Vo1
Negative Output 1 S1-
Control Vo1
R1
i
Inhibit
i
i
Inhibit
D3
V3
T5
Save data
20
D3
T5
Save data
D3
T5
Save data
D3
T5
Save data
ACFAIL
22
Current sharing
Current sharing
Protective earth
Current sharing
Protective earth
Current sharing
Protective earth
242
Protective earth
4
4
4
26
28
30
32
Positive Input
Neutral line4
Negative Input
Phase line4
Vi+ N
Vi+ N
Positive Input
Neutral line4
Negative Input
Phase line4
Vi+ N
Vi+ N
Positive Input
Neutral line4
Negative Input
Phase line4
~
~
~
~
4
Vi+ N
Vi+
Vi-
Positive Input
Negative Input
~
4
4
4
Vi-
Vi-
L
L
Vi-
Vi-
L
L
~
~
~
4
Vi- L
~
4
4
~
1
2
3
4
5
Not connected, if option P is fitted.
Leading pin (pre-connecting)
Option D excludes option V and vice versa. Pin 20 is not connected, unless option D or V is fitted.
LK models
Only connected, if option T is fitted.
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K Series
150 W DC-DC and AC-DC Converters
Installation Instructions
Note: These converters have no power factor correction (PFC). The LK4000/5000 models are intended to replace the LK1000 and LK2000
converters in order to comply with IEC/EN 61000-3-2. LK1000 is replaced by LK4003 with option K.
The converters are components, intended exclusively for inclusion within other equipment by an industrial assembly operation
or by professional installers. Installation must strictly follow the national safety regulations in compliance with the enclosure,
mounting, creepage, clearance, casualty, markings, and segregation requirements of the end-use application.
Connection to the system shall be made via the female connector H15 (standard) or H15S4; see Accessories. Other installation
methods may not meet the safety requirements.
Pin no. 24 ( ) is connected with the case. For safety reasons it is essential to connect this pin reliably to protective earth.
The input pins 30/32 (Vi– or L ) are connected via a built-in fuse, which is designed to protect in the case of a converter failure.
~
An additional external fuse, suitable for the application, might be necessary in the wiring to the other input 26/28 (Vi+ or N ) or
~
even to pins 30/32, particularly if:
• Local requirements demand an individual fuse in each source line
• Phase and neutral of the AC mains are not defined or cannot be assigned to the corresponding terminals.
• Neutral and earth impedance is high or undefined
Notes:
– If the inhibit function is not used, pin no. 18 (i) should be connected with pin no. 14 to enable the output(s).
– Do not open the converters, or warranty will be invalidated.
– Due to high current values, the converters provide two internally parallel contacts for certain paths (pins 4/6, 8/10, 26/28 and 30/32). It is
recommended to connect both female connector pins of each path in order to keep the voltage drop low and avoid excessive connector
currents.
– If the second output of double-output models is not used, connect it parallel with the main output.
Make sure that there is sufficient airflow available for convection cooling and verify it by measuring the case temperature TC, when
the converter is installed and operated in the end-use application; see Thermal Considerations.
Ensure that a converter failure (e.g, an internal short-circuit) does not result in a hazardous condition.
Standards and Approvals
The converters are safety-approved according to the latest edition of IEC/EN60950-1 and UL/CSA60950-1.
The converters correspond to Class I equipment and have been evaluated for:
• Building-in
• Basic insulation between input and case based on 250 VAC, and double or reinforced insulation between input and output(s)
• Functional insulation between outputs
• Overvoltage category II
• Pollution degree 2 environment
• Max. altitude: 2000 m
• The converters fulfil the requirements of a fire enclosure.
The converters are subject to manufacturing surveillance in accordance with the above mentioned standards and ISO 9001:2015.
A CB-scheme is available.
Railway Applications and Fire Protection
The converters have been designed by observing the railway standards EN 50155, EN 50121-3-2, and EN 50121-4. All boards
are coated with a protective lacquer.
The converters with version V108 (or later, but not models with H15S4 connector: 5 V output without option K) comply with
NF-F16 (I2/F1). They also comply with EN 45545-1, EN 45545-2 (2016), if installed in a technical compartment or cabinet.
Protection Degree and Cleaning Liquids
Condition: Female connector fitted to the converter.
• IP 30: All models except those with option P, and except those with option D or V including a potentiometer.
• IP 20: All models fitted with option P, or with option D or V with potentiometer.
In order to avoid damage, any penetration of cleaning fluids has to be prevented, since the power supplies are not hermetically
sealed.
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K Series
150 W DC-DC and AC-DC Converters
Isolation and Protective Earth
The electric strength test is performed in the factory as routine test in accordance with EN 50514 and IEC/EN 60950. The company
will not honor any warranty claims resulting from incorrectly executed electric strength field tests. The resistance between earth
connection and case (<0.1 Ω) is tested as well.
Table 14: Isolation
Characteristics
Input to
Case + Output(s)
Output(s) to
Output 1 to
Output 2
Unit
Case
Electric strength test
Factory test 10 s
2.8 1
2.0 1
1.4
1.0
0.15
kVDC
kVAC
MΩ
AC test voltage equivalent to factory test
0.1
Insulation resistance at 500 VDC
>300
≥ 3.2 3
>300
---
>100 2
---
Creepage distances
mm
1
According to EN 50514 and IEC/EN 60950, subassemblies connecting input to output are pre-tested with 5.6 kVDC or 4 kVAC.
Tested at 150 VDC
Input to outputs: 6.4 mm
2
3
Leakage Currents
Leakage currents flow due to internal leakage capacitances and Y-capacitors. The current values are proportional to the supply
voltage and are specified in the table below.
Table 15: Earth leakage currents for LK models
Characteristics
Class I
3.5
Unit
Max. leakage current
Permissible accord. to IEC/EN 60950
Typ. value at 264 V, 50 Hz
mA
1.43
LK Models Operated at Greater than 63 Hz
Above 63 Hz, the earth leakage current may exceed 3.5 mA, the maximum value allowed in IEC 60950. Frequencies ≥ 350 Hz
only permitted with Vi ≤ 200 VAC.
The built-in Y-caps are approved for ≤100 Hz. Safety approvals and CB scheme cover only 50 – 60 Hz.
Safety of Operator-Accessible Output Circuits
If the output circuit of a DC-DC converter is operator-accessible, it shall be an SELV circuit according to the standard IEC 60950-1.
The following table shows some possible installation configurations, compliance with which causes the output circuit of the
converter to be an SELV circuit according to IEC 60950-1 up to a configured output voltage (sum of nominal voltages if in series
or +/– configuration) of 36 V.
However, it is the sole responsibility of the installer to assure the compliance with the rapplicable safety regulations.
≤150 VAC or VDC for AK, BK
10044a
≤250 VAC or VDC for CK, DK, EK, FK, LK
+
AC-DC
front
end
DC-DC
con-
verter
Fuse
Fuse
+
Mains
Battery
SELV
–
≤150 VAC or VDC for AK, BK
≤250 VAC or VDC for CK, DK, EK, FK, LK
Earth connection
Fig. 28
Schematic safety concept.
Use earth connections as per the table below.
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K Series
150 W DC-DC and AC-DC Converters
Table 16: Safety concept leading to an SELV output circuit
Conditions
Front end
DC-DC converter
Result
Nominal supply
voltage
Minimum required grade Nominal DC output voltage
Minimum required
safety status of the
front end output
circuit
Types Measures to achieve the specified
Safety status
of the DC-DC
converter
of insulation, to be
provided by the AC-DC
front end, including
mains supplied battery
charger
from the front end
safety status of the output circuit
output circuit
Mains ≤150 VAC
Mains ≤ 250 VAC
Functional (i.e. there is
no need for electrical
insulation between
the mains supply
voltage and the DC-DC
converter input voltage)
≤ 100 V
Primary circuit
AK
BK
Double or reinforced insulation,
based on the mains voltage and2
(provided by the DC-DC converter)
and earthed case3
SELV circuit
(The nominal voltage between
any input pin and earth can be
up to 150 VAC or DC)
≤ 400 V
CK
DK
EK
FK
(The nominal voltage between
any input pin and earth can be
up to 250 VAC or 400 VDC)
Basic
≤ 400 V
Unearthed
hazardous voltage
secondary circuit
AK
BK
CK
DK
EK
FK
Supplementary insulation, based on
250 VAC and double or reinforced
insulation2 (provided by DC-DC
converter) and earthed case3.
Earthed hazardous
voltage secondary
circuit
Double or reinforced insulation2
(provided by the DC-DC converter)
earthed case3
Double or reinforced
≤ 60 V
SELV circuit
Functional insulation
(provided by the DC-DC converter)4
≤ 120 V
TNV-3 circuit
Basic insulation
(provided by the DC-DC converter)4
1
The front end output voltage should match the specified input voltage range of the DC-DC converter.
Based on the maximum nominal output voltage from the front end.
The earth connection has to be provided by the installer according to the relevant safety standard, e.g. IEC/EN 60950-1.
Earthing of the case is recommended, but not mandatory.
2
3
4
If the output circuit of an AC-DC converter is operator-accessible, it shall be an SELV circuit according to standard IEC 60950-1.
The following table shows some possible installation configurations, compliance with which causes the output circuit of LK models to
be SELV according to IEC 60950-1 up to a configured output voltage (sum of nominal voltages if in series or +/– configuration) of 36 V.
If the LK converter is used as DC-DC converter, refer to the previous section.
10021a
Fuse
+
SELV
–
~
AC-DC
con-
verter
Mains
Earth
Fuse
~
connection
Fig. 29
Schematic safety concept. Use earth connection as per table 17. Use fuses if required by the application; see also Instal. Instructions.
Table 17: Safety concept leading to an SELV output circuit
Conditions
AC-DC converter
Installation
Result
Nominal voltage
Grade of insulation between input and
output provided by the AC-DC converter safety status of the output circuit
Measures to achieve the resulting
Safety status of the AC-DC
converter output circuit
Mains ≤ 250 VAC Double or reinforced
Earthed case1 and installation
SELV circuit
1 The earth connection has to be provided by the installer according to the relevant safety standards, e.g. IEC/EN 60950.
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K Series
150 W DC-DC and AC-DC Converters
Description of Options
Table 18: Survey of options
Option
- 7
E
Function of option
Characteristics
Extended operational ambient temperature range
Electronic inrush current limitation circuitry
Potentiometer for fine adjustment of output voltage
Input and/or output undervoltage monitoring circuitry
Input and/or output undervoltage monitoring circuitry
Current sharing
TA = – 25 to 71 °C
Active inrush current limitation
P2
D1
V 1
T
Adjustment range +10/– 60% of Vo nom, excludes R-input
Safe data signal output (D0 – DD)
ACFAIL signal according to VME specifications (V0, V2, V3)
Interconnect T-pins for parallel connection (max 5 converters)
H15 standard connector instead H15-S4 for models with Vo = 5.1 V)
Replaces the standard heat sink, allowing direct chassis-mounting
Tin-lead solder
K
Standard H15 Connector
B, B1, B2 Cooling plate (160 or 220 mm long)
non-G RoHS-compliant for 5 substances
1
2
Option D excludes option V and vice versa; option V only for 5.1 V outputs.
Option P is not available for battery charger models.
-7 Temperature Range
Option -7 designates converters with an operational ambient temperature range of –25 to 71 °C. Not for new designs.
E Inrush Current Limitation
CK/DK/EK/LK models may be supplemented by an electronic circuit (option E, replacing the standard built-in NTC resistor) to
achieve an enhanced inrush current limiting function (not available with AK/BK/FK types). Option E is mandatory for all CK/DK/
EK/LK models with option -9.
The figure below shows two consecutive peaks of the inrush current, the first one is caused by Vi/Rv and the second one by the
rising current across the FET. The shape of the curve depends on model, but the tables below show the higher of both peaks.
I
[A]
inr
Capacitor C
i
10017b
fully charged
Normal operation
(FET fully conducting)
LK models
V /R
i
v
Ci
Control
FET
I = P /V
i
i
i
Rs
RSt
11039a
0
t [ms]
t
0
inr
Fig. 30
Block diagram of option E
Current limiting resistance Rv = Rs + RSt = 15 Ω
Fig. 31
Inrush current with option E (DC supply)
2 different wave shapes depending on model
Table 19a: Inrush current at Vi nom (DC supply) and Io nom
Table 19b: Inrush current at Vi max (DC supply) and Io nom
Characteristics
CK
60
DK
110
7.4
14
EK
220
14.6
16
LK
310
21
Unit
V
Characteristics
CK
140
9
DK
EK
LK
Unit
V
Vo nom Input voltage
Iinr p Peak inrush current
Vo max Input voltage
Iinr p Peak inrush current
220
385
372
6.5
25
A
14.5 25.7 24.8
14 12 12
A
tinr
Inrush current duration
12
ms
tinr
Inrush current duration
30
ms
CK models fitted with option E and option D6 (input voltage monitor) meet the standard ETS 300132-2 for 48 VDC supplies. Option
D6 is necessary to disable the converter at low input voltage, such avoiding an excessive input current. Connect output D (pin 20)
with inhibit (pin 18).
Option D6 should be adjusted with the potentiometer to a threshold of 36 – 40.5 V for 48 V batteries and to 44 – 50 V for 60 V
batteries. Refer also to the description of option D.
Note: Subsequent switch-on cycles at start-up are limited to max. 10 cycles during the first 20 s (cold converter) and then to max. 1 cycle every 8s.
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K Series
150 W DC-DC and AC-DC Converters
LK models powered by 230 VAC/ 50 Hz exhibit an inrush current as per the fig. below, when switched on at the peak of Vi. In this
case, the inrush current Iinr p is 21.7 A and its duration tinr is 5 ms. This is the worst case.
If the LK converter is switched on in a different moment, Iinr p is much lower, but tinr rises up to 10 ms.
I [A]
i
20
15
Capacitor C
i
fully charged
10
Normal operation
(FET fully conducting)
5
0
–5
–10
t
inr
10065a
t [ms]
–15
0
20
40
60
80
Fig. 32
Inrush current for LK models with option E (AC supply); Vi = 230 VAC, fi = 50 Hz, Po = Po nom
P Potentiometer
A potentiometer provides an output voltage adjustment range of +10/–60% of Vo nom. It is accessible through a hole in the front
cover. Option P is not available for battery charger models and is not recommended for converters connected in parallel.
Option P excludes the R-function. With double-output models, both outputs are influenced by the potentiometer setting (doubling
the voltage, if the outputs are in series).
Note: If the output voltages are increased above Vo nom via R input control, option P setting, remote sensing, or option T, the output current(s)
should be reduced, so that Po nom is not exceeded.
T Current Sharing
This option ensures that the output currents are approximately shared between all parallel-connected converters, hence increasing
system reliability. To use this facility, simply interconnect the T pins of all converters and make sure that the reference for the T
signal, pin 14 (S– or Vo1–), are also connected together. The load lines should have equal length and cross section to ensure
equal voltage drops.
Not more than 5 converters should be connected in parallel. The R pins should be left open-circuit. If not, the output voltages must
be individually adjusted prior to paralleling within 1 to 2% or the R pins should be connected together.
Note: Parallel connection of converters with option P is not recommended.
11003a
Vo+
Load
Vo–
Vo+
Vo–
Vo+
Vo–
Fig.33
Example of poor wiring for parallel connection (unequal length of load lines)
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K Series
150 W DC-DC and AC-DC Converters
Power bus
11036b
+
–
11037b
Vo+
1
2
Vo2+
S+
T
Vo2–
T
1
Converter
Converter
S–
Vo1+
Vo1–
Vo–
Load
Load
2
Vo+
Vo2+
S+
T
Vo2–
T
1
1
Converter
Converter
S–
Vo1+
Vo1–
Vo–
Max. 5 converters in parallel connection
1
2
Lead lines should have equal length and cross section, and should run
in the same cable loom.
Diodes recommended in redundant operation only
Max. 5 converters in parallel connection
Fig. 34
Fig. 35
Parallel connection of single-output models using option T
with the sense lines connected at the load
Parallel connection of double-output models with the outputs
connected in series, using option T.
The signal at the T pins is referenced to Vo1–.
D Undervoltage Monitor
The input and/or output undervoltage monitor operates independently of the built-in input undervoltage lockout circuit. A logic “low”
signal (output with self-conducting JFET) or “high” signal (NPN open-collector output) is generated at the D output (pin 20), when
one of the monitored voltages drops below the preselected threshold level Vt. This signal is referenced to S–/Vo1–. The D output
recovers, when the monitored voltages exceed Vt + Vh. The threshold levels Vti and Vto are either adjusted by a potentiometer,
accessible through a hole in the front cover, or adjusted in the factory to a fixed value specified by the customer.
Option D exists in various versions D0 – DD, as shown in table 21. D0 and D9 are adjusted according to customer’s request and
receive a customer-specific model number.
Output type
Monitoring
Minimum adjustment range of
Typ. hysteresis Vho [%ofVt]
for Vt min – Vt max
Number of
potentiometers
threshold level Vt
JFET
D1
NPN
D5
Vi
Vo orVo1
yes
no
Vti
---
Vto
3.5 V–Vo BR
---
Vhi
Vho
2.5 – 0.6 V
---
1
no
yes
yes
no
---
1
1
1
1
D2
D3
D6
D7
Vi min – Vi max
Vi min – Vi max
---
3.4 – 0.4 V
3.4 – 0.4 V
---
yes
yes
yes
no
(0.95 – 0.985 Vo)2
(0.95 – 0.985 Vo)2
“0”
1
D4
D8
“0”
---
---
D05
D95
no
---
3.5 V–Vo BR
---
2.5 – 0.6 V
---
3
3, 4
3, 4
3, 4
1
yes
yes
yes
yes
Vi min – Vi max
Vi min – Vi max
Vi min – Vi max
Vi min – Vi max
---
3.4 – 0.4 V
3.4 – 0.4 V
3.4 – 0.4 V
3.4 – 0.4 V
3, 4
yes
yes
yes
3.5 V–Vo BR
2.5 – 0.6 V
“0”
(0.95 – 0.985 Vo)2
1
---
DD
3.5 V–Vo BR
2.5 – 0.6 V
2
1
2
3
Threshold level adjustable by potentiometer; see Electrical Output Data for Vo BR
Fixed value. Tracking if Vo/Vo1 is adjusted via R-input, option P, or sense lines.
The threshold level permanently adjusted according to customer specification ±2% at 25 °C. Any value within the specified range is basically
.
possible, but causes a special type designation in addition to the standard option designations (D0/D9). See Electrical Output Data for Vo BR
Adjustment at Io nom
Customer-specific part number
.
4
5
.
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K Series
150 W DC-DC and AC-DC Converters
JFET output (D0 – D4):
Pin D is internally connected via the drain-source path of a JFET (self-conducting type) to the negative potential of output 1.
VD ≤ 0.4 V (logic low) corresponds to a monitored voltage level (Vi and/or Vo1) <Vt. The current ID through the JFET should not
exceed 2.5 mA. The JFET is protected by a 0.5 W Zener diode of 8.2 V against external overvoltages.
NPN output (D5 – DD):
Pin D is internally connected via the collector-emitter path of a NPN transistor to the negative potential of output 1. VD < 0.4 V (logic
low) corresponds to a monitored voltage level (Vi and/or Vo1) > Vt + Vh. The current ID through the open collector should not exceed
20 mA. The NPN output is not protected against external overvoltages. VD should not exceed 40 V.
Table 21: JFET output (D0 -- D4)
Table 22: NPN output (D5 – DD)
Vb, Vo1 status
D output, VD
Vb, Vo1 status
D output, VD
Vb or Vo1 < Vt
low, L, VD ≤ 0.4 V at ID = 2.5 mA
high, H, ID ≤ 25 µA at VD = 5.25 V
Vb or Vo1 < Vt
high, H, ID ≤ 25 µA at VD = 40 V
low, L, VD ≤ 0.4 V at ID = 20 mA
Vb and Vo1 > Vt + Vh
Vb and Vo1 > Vt + Vh
11006a
11007a
Vo+/Vo1+
Vo+/Vo1+
R
R
p
p
I
I
D
D
20
D
20
D
Self-conducting
junction FET
NPN open
collector
V
V
D
D
14
14
S–/Vo1–
S–/Vo1–
Fig. 36
Fig. 37
Option D0 – D4: JFET output, ID ≤ 2.5 mA
Option D5 – DD: NPN output, Vo ≤ 40, ID ≤ 2.5 mA
Threshold tolerances and hysteresis:
If Vi is monitored, the internal input voltage after the input filter is measured. Consequently this voltage differs from the voltage at
the connector pins by the voltage drop ∆Vti across the input filter. The threshold levels of the D0 and D9 options are factory adjusted
at nominal output current Io nom and TA = 25 °C. The value of ∆Vti depends upon input voltage range (CK, DK, ..), threshold level Vt,
temperature, and input current. The input current is a function of the input voltage and the output power.
11021a
∆V
V
V
hi
ti
D
V
D high
V
D low
V
i
V
ti
Fig. 38
Definition of Vti, ∆Vt i and ∆Vhi (JFET output)
Table 23: D-output logic signals
Version of D
Vi < Vt or Vo < Vt
Vi > Vt + Vh or Vo > Vt
Configuration
JFET
D1, D2, D3, D4, D0
D5, D6, D7, D8, D9, DD
low
high
low
high
NPN
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K Series
150 W DC-DC and AC-DC Converters
Input voltage monitoring
NPN
VD
VD high
11008a
3
3
3
3
VD low
t
t
0
ID
ID high
ID low
0
JFET VD
VD high
VD low
t
t
0
1
4
4
4
th
tlow min
tlow min
tlow min
thigh min
Vo1
Vo1 nom
1
th
1
0.95
0
Vi [VDC]
Vti
+Vhi
Vti
t
0
Input voltage failure
Switch-on cycle
Input voltage sag
Switch-on cycle and subsequent
input voltage failure
Output voltage monitoring
VD
VD high
NPN
2
3
3
VD low
t
t
0
1
Hold-up time see Electrical Input Data
ID
ID high
2
3
With output voltage monitoring, hold-up time t = 0
h
The signal remains high, if the D output is connected
to an external source
ID low
0
4
t
= 100 – 170 ms, typ. 130 ms
low min
VD
JFET
VD high
VD low
t
t
0
4
tlow min
Vo1
Vo1 nom
Vto
+Vho
Vto
0
Output voltage failure
Fig. 39
Relationship between Vi, Vo, VD, Vo/Vo nom versus time
Table 24: Option V: Factory potentiometer setting of Vti with resulting hold-up time
Model
Vt i
AK
9.5
0.1
BK
19.5
0.1
FK
39
CK
39
DK
61
EK
97
LK
Unit
VDC
ms
120
4.2
th
3.4
1.1
1.1
2.7
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K Series
150 W DC-DC and AC-DC Converters
V ACFAIL signal (VME)
Available for units with Vo nom = 5.1 V only.
This option defines an undervoltage monitoring circuit for the input or for the input and main output voltage (5.1V) similar to option
D and generates an ACFAIL signal (V signal), which conforms to the VME standard.
The low state level of the ACFAIL signal is specified at a sink current of IV ≤ 48 mA to VV ≤ 0.6 V (open-collector output of an NPN
transistor). The pull-up resistor feeding the open-collector output should be placed on the VME back plane.
After the ACFAIL signal has gone low, the VME standard requires a hold-up time th of at least 4 ms, before the 5.1 V output drops
to 4.875 V, when the output is fully loaded. This hold-up time th is provided by the internal input capacitance. Consequently the
working input voltage and the threshold level Vti should be adequately above Vi min of the converter, so that enough energy is
remaining in the input capacitance. If Vi is below the required level, an external hold-up capacitor (Ci ext) should be added; refer to
the formulas below:
where as:
Ci min = internal input capacitance [mF]; see table 2
Ci ext = external input capacitance [mF]
2 • Po • (th + 0.3 ms) • 100
_______________________
2
Vt i =
√
+ Vi min
Ci min • η
P
= output power [W]
= efficiency [%]
ηo
t h
2 • Po • (t + 0.3 ms) • 100
Ci ext = ––––––––h–––––––––––––– – Ci min
= hold-up time [ms]
2
η • (Vti 2 – Vi min
)
Vi min = minimum input voltage [V]1
Vti
= threshold level [V]
1
Vi min see Electrical Input Data. For output voltages Vo > Vo nom, Vi min increases proportionally to Vo/Vo nom
.
Note: Option V2 and V3 can be adjusted by the potentiometer to a threshold level between Vi min and Vi max. A decoupling diode should be connected
in series with the input of AK – FK converters to avoid the input capacitance discharging through other loads connected to the same source voltage.
Table 25: Undervoltage monitor functions
Option
Monitoring
Minimum adjustment range of
Typical hysteresis Vh [%ofVt]
for Vt min – Vt max
threshold level Vt
Vi
Vo orVo1
no
Vti
Vto
Vhi
Vho
---
1
V2
V3
V0
yes
yes
yes
yes
Vi min – Vi max
Vi min – Vi max
Vi min – Vi max
Vi min – Vi max
---
0.95 – 0.985 Vo1
---
3.4 – 0.4 V
3.4 – 0.4 V
3.4 – 0.4 V
3.4 – 0.4 V
1
2
2
yes
“0”
---
3, 4
3, 4
no
yes
0.95 – 0.985 Vo1
“0”
1
2
3
4
Threshold level adjustable by potentiometer.
Fixed value between 95% and 98.5% of Vo1 (tracking).
Adjusted at Io nom
.
Fixed value, resistor-adjusted (±2% at 25°C) accord. to customer’s specification; individual type number is determined by the company.
Option V operates independently of the built-in input undervoltage lockout circuit. A logic “low” signal is generated at pin
20, as soon as one of the monitored voltages drops below the preselected threshold level Vt. The return for this signal is
S–.TheVoutputrecovers,whenthemonitoredvoltagesexceedVt +Vh.ThethresholdlevelVti iseitheradjustablebyapotentiometer,
accessible through a hole in the front cover, or adjusted in the factory to a determined customer-specific value. Refer to table 26.
V output (V0, V2, V3):
Pin V is internally connected to the open collector of an NPN transistor. The emitter is connected to S–. VV ≤ 0.6 V (logic low)
corresponds to a monitored voltage level (Vi and/or Vo) <Vt. IV should not exceed 50 mA. The V output is not protected against
external overvoltages: VV should not exceed 60 V.
Threshold tolerances and hysteresis:
If Vi is monitored, the internal input voltage is measured after the input filter. Consequently this voltage differs from the voltage at
the connector pins by the voltage drop ∆Vti across the input filter. The threshold level of option V0 is adjusted in the factury at Io nom
and TA = 25 °C. The value of ∆Vti depends upon the input voltage range (AK, BK, etc.), threshold level Vt, temperature, and input
current. The input current is a function of input voltage and output power.
Table 26: NPN-output (V0, V2, V3)
Vi, Vo1 status
V output, Vv
Vi or Vo1 < Vt
low, L, VV ≤ 0.6 V at IV = 50 mA
high, H, IV ≤ 25 µA at VV = 5.1 V
Vi and Vo1 > Vt + Vh
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K Series
150 W DC-DC and AC-DC Converters
V
∆V
V
Vo+
V
ti
hi
11009a
11023a
V
R
V high
p
I
V
20
NPN open
collector
V
V
V
V
V low
14
V
i
S–
V
ti
Fig. 40
Fig. 41
Output configuration of options V0, V2 and V3
Definition of Vti, ∆Vti and Vhi
Input voltage monitoring
2
2
2
tlow min
tlow min
tlow min
V2
VV
3
3
3
11010a
VV high
4
2
4
2
VV low
t
t
0
tlow min
tlow min
V3
VV
3
3
3
VV high
VV low
0
1
1
th
th
Vo
5.1 V
4.875 V
2.0 V
0
t
Vi [VDC]
Vti + Vhi
Vti
t
0
Input voltage failure
Switch-on cycle
Input voltage sag
Switch-on cycle and subsequent
input voltage failure
Output voltage monitoring
VV
VV high
V2
V3
4
4
VV low
t
t
0
2
tlow min
VV
VV high
3
3
1
VME request: minimum 4 ms
tlow min = 40 – 200 ms, typ 80 ms
VV level not defined at Vo < 2.0 V
The V signal drops simultaneously with Vo, if the pull-up
resistor RP is connected to Vo+; the V signal remains
high if RP is connected to an external source.
4
2
3
4
VV low
0
Vo
5.1 V
4.875 V
2.0 V
0
t
Vi
Vti + Vhi
Vti
t
0
Output voltage failure
Fig. 42
Relationship between Vb, Vo, VD, Vo/Vo nom versus time
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K Series
150 W DC-DC and AC-DC Converters
K Standard H15 Connector
Option K is available only for 5.1 V output models in order to avoid the connector with high current contacts. Efficiency is approx.
1.5% worse.
B, B1, B2 Cooling Plate
Where a cooling surface is available, we recommend the use of a cooling plate instead of the standard heat sink. The mounting
system should ensure that the maximum case temperature TC max is not exceeded. The cooling capacity is calculated by (η see
Model Selection):
(100% – η)
PLoss
=
–––––––––– • Vo • Io
η
For the dimensions of the cooling plates, see Mechanical Data. Option B2 is for customer-specific models with elongated case
(for 220 mm DIN-rack depth).
G RoHS
RoHS-compliant for all six substances.
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K Series
150 W DC-DC and AC-DC Converters
Accessories
A variety of electrical and mechanical accessories are available including:
– Front panels for 19” DIN-rack: Schroff or Intermas,
12 TE /3U; see fig. 43.
– Mating H15 connectors with screw, solder, faston, or press-fit terminals, code key system and coding wedges HZZ00202-G;
see fig. 44.
– Pair of connector retention clips HZZ01209-G; see fig. 45
– Connector retention brackets HZZ01216-G; see fig. 46
– Cage clamp adapter HZZ00144-G; see fig. 47
– Different cable hoods for H15 connectors (fig. 48):
- HZZ00141-G, screw version
- HZZ00142-G, use with retention brackets HZZ01218-G
- HZZ00143-G, metallic version providing fire protection
– Chassis or wall-mounting plate K02 (HZZ01213-G) for models with option B1. Mating connector (HZZ00107-G) with screw
terminals; see fig. 49
– DIN-rail mounting assembly HZZ0615-G (DMB-K/S); see fig. 50
– Additional external input and output filters
– Different battery sensors S-KSMH... for using the converter as a battery charger. Different cell characteristics can be selected;
see fig. 51, table 27, and Battery Charging/Temperature Sensors.
For additional accessory product information, see the accessory data sheets listed with each product series or
individual model at our web site.
Fig. 44
Different mating connectors
Fig. 43
Fig.45
Different front panels
Connector retention clips to fasten the H15 connector to the
rear plate; see fig.24. HZZ01209-G consists of 2 clips.
20 to 30 Ncm
Fig. 46
Fig. 47
Connector retention brackets HZZ01216-G (CRB-HKMS)
Cage clamp adapter HZZ00144-G
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K Series
150 W DC-DC and AC-DC Converters
Fig. 48
Fig. 49
Different cable hoods
Chassis- or wall-mounting plate HZZ01213-G (Mounting
plate K02)
European
Projection
26 (1.02")
09125a
L
56 (2.2")
adhesive tape
L = 2 m (standard length)
other cable lengths on request
Fig. 50
Fig. 51
Battery temperature sensor
DIN-rail mounting assembly HZZ00615-G (DMB-K/S)
Table 27: Battery temperature sensors
Battery
voltage
nom. [V]
Sensor type
Cell
Cell temp. Cable
voltage coefficient length
[V]
[mV/K]
–3.0
–3.5
–3.0
–3.5
–3.5
–3.5
–3.5
–3.0
–3.5
[m]
2
12
12
24
24
24
24
24
48
48
S-KSMH12-2.27-30-2
S-KSMH12-2.27-35-2
S-KSMH24-2.27-30-2
S-KSMH24-2.27-35-2
S-KSMH24-2.31-35-0
S-KSMH24-2.31-35-2
S-KSMH24-2.35-35-2
S-KSMH48-2.27-30-2
S-KSMH48-2-27-35-2
2.27
2.27
2.27
2.27
2.31
2.31
2.35
2.27
2.27
2
2
2
4.5
2
2
2
2
Note: Other temperature coefficients and cable lengths are available on request.
NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
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