P Series
90 - 192 Watt DC-DC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted
products available
• Wide input voltage ranges up to 154 VDC
• 1, 2, 3 or 4 isolated outputs up to 96 V
• Class I equipment
• Compliant with EN 45545 and NF-F-16 (version V114 or
later)
• Very high efficiency up to 90%
• Extremely low inrush current, hot-swappable
• Excellent surge and transient protection
• Many output configurations available with flexible load
distribution
• Externally adjustable output voltage
• Inhibit primary referenced
• Redundant operation (n+1), sense lines, current sharing
option
• Extremely slim case (4 TE, 20 mm), fully enclosed
• Hipot test voltage up to 2.8 kVDC (Version V114 or later)
111
4.4"
3U
20
0.8"
4 TE
• All PCBs coated with protective lacquer
• Telecom-compatible input voltage range of DP models
according to ETS 300132-2
164
6.5"
• CompactPCI-compatible output voltage (xP4720)
Safety-approved to the latest edition of IEC/EN 62368-1
and UL/CSA 60950-1
Table of Contents
Description........................................................................................2
Model Selection.................................................................................2
Functional Description.......................................................................6
Electrical Input Data..........................................................................7
Electrical Output Data.......................................................................9
Auxiliary Functions..........................................................................15
Electromagnetic Compatibility (EMC)..............................................18
Immunity to Environmental Conditions............................................20
Mechanical Data..............................................................................21
Safety and Installation Instructions..................................................22
Description of Options.....................................................................25
Accessories.....................................................................................26
belfuse.com/power-solutions
BCD20010-G Rev AR,10 May 2021
P Series
90 - 192 W DC-DC Converters
Description
These extremely compact DC-DC converters incorporate all necessary input and output filters, signaling and protection features,
which are required in the majority of applications. The converters provide important advantages, such as flexible output power through
primary-side current limitation, extremely high efficiency, excellent reliability, very low ripple and RFI noise levels, full input-to-output
isolation, negligible inrush current, soft start, overtemperature protection and input over- and undervoltage lockout.
The converters are particularly suitable for rugged environments, such as railway applications. They have been designed in accordance
with the European railway standards EN 50155 and EN 50121-3-2. All printed circuit boards are coated with a protective lacquer. The
converter inputs are protected against surges and transients occurring on the source lines and cover a total operating input voltage
range from 16 to 150 VDC with five different model types. The outputs are continuously open- and short-circuit proof.
Full system flexibility and n+1 redundant operating mode are possible due to series or parallel connection capabilities of the outputs
under the specified conditions. When several converters (with 3.3 and 5.1 V outputs) are connected in parallel, the T option allows
for a single-wire connection between the converters to ensure good current sharing. LEDs at the front panel and an isolated Out-OK
signal (option) indicate the status of the converter. Voltage suppressor diodes and an independent second control loop protect the
outputs against an internally generated overvoltage.
The converters are designed using planar magnetics transformers and control circuits in hybrid technology. There are always two
powertrains fitted to a converter, each consisting either of a regulated single output with synchronous rectifier or of a regulated main
output with a tracking second output. The output power may be flexibly distributed among the main and the tracking output of each
powertrain. Close magnetic coupling in the transformers and output conductors together with circuit symmetry ensure tight tracking
of the auxiliary output. The switching frequency is fixed.
As a modular power supply or as part of a distributed power supply system, the low-profile design significantly reduces the required
volume without sacrificing high reliability. The converters are particularly suitable for 19" rack systems occupying 3U/4TE only, but
they can also be chassis-mounted by means of four screws. Connector type is H15 (or H15S2 for some single-output models). The
fully enclosed black-coated aluminum case acts as heat sink and RFI shield and protects the converter together with the coating of
all components against environmental impacts.
Model Selection
Note: Only standard models are listed. Other voltage configurations are possible on request.
Table 1a: Model types BP, CP
Output 1, 4
Output 2, 3
Efficiency 2, Operating input voltage range
Vo nom
[V]
Po nom
[W]
Po max
[W]
Vo nom
[V]
Po nom
[W]
Po max
[W]
η2
[%]
Vi min – Vi max4
16 – 36 V
η2
[%]
Vi min – Vi max4
33.6 – 75 V
3.3
5.1
12
15
24
92
122
120
120
120
132
183
192
192
192
-
-
-
84 8
87 8
87.5
87.5
88
BP1101-9RG
BP1001-9RG
BP1301-9RG
BP1501-9RG
BP1601-9RG
84 8
88 8
88.5
88.5
89
CP1101-9RG
CP1001-9RG
CP1301-9RG
CP1501-9RG
CP1601-9RG
3.3
5.1
5.1
12
15
24
46
61
61
60
60
60
66
91
91
96
96
96
5.1
5.1
12
12
15
24
61
61
60
60
60
60
91
91
96
96
96
96
86
87
87
87.5
87.5
88
BP2101-9RG
BP2001-9RG
BP2020-9RG
BP2320-9RG
BP2540-9RG
BP2660-9RG
86
88
88
88.5
88.5
89
CP2101-9RG
CP2001-9RG
CP2020-9RG
CP2320-9RG
CP2540-9RG
CP2660-9RG
5.1
5.1
5.1
12
24
61
61
61
60
60
91
91
91
96
96
12, 12 3
15, 15 3
24, 24 3
15, 15 3
5.1, 5.1 3
60 1
60 1
60 1
60 1
51 1
96 1
96 1
96 1
96 1
82 1
87
87.5
87.5
87
-
BP3020-9RG
BP3040-9RG
BP3060-9RG
BP3340-9RG
-
89
88.5
88.5
87
CP3020-9RG
CP3040-9RG
CP3060-9RG
CP3601-9RG
5.1, 3.3 7
5.1, 5.1 3
12, 12 3
15, 15 3
24, 24 3
30
51 1
60 1
60 1
60 1
50
82 1
96 1
96 1
96 1
12, 12 3
15, 15 3
12, 12 3
15, 15 3
24, 24 3
60 1
60 1
60 1
60 1
60 1
96 1
96 1
96 1
96 1
96 1
85
86
87.5
87.5
88
BP4720-9RG
BP4040-9RG
BP4320-9RG
BP4540-9RG
BP4660-9RG
88.5
88.5
89
CP4720-9RG
CP4040-9RG
CP4320-9RG
CP4540-9RG
CP4660-9RG
Options
-7,
D, T 5, K ⁸,
B0, B1, B3,
non-G
-7,
D, T 6,
B0, B1, B3,
non-G
-7,
D,
B0, B1, B3,
non-G
The power of both outputs shall in sum not exceed the total power for the specified ambient temperature.
Min efficiency at Vi nom, Po nom, TA = 25 °C. Typical values are approx. 2% better.
3
Isolated tracking output (±5% Vo nom, if each output is loaded with ≥ 5% of Po nom). Parallel or series configuration is possible.
4
Short deviations below Vi min and beyond Vi max according to EN 50155 possible; see table 2a.
5
Only available for models with 5.1 or 3.3 V output.
6
Option T is only available for outputs with 5.1 or 3.3 V. Opt. T excludes opt. R; refer to table 13, pin allocations
7
Outputs 5.1 and 3.3 V have a common return. Nominal values: 5.1 V / 4 A, 3.3 V / 3 A. Max. values: 5.1 V / 6.5 A, 3.3 V / 5 A.
8
Option K only for xP1101 and xP1001: H15 standard connector. Models without option K exhibit a better efficiency:
xP1101 is approx 2% better, xP1001 approx 1% better than the models with option K.
1
2
NFND: Not for new designs.
Preferred for new designs
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Page 2 of 26
P Series
90 - 192 W DC-DC Converters
Table 1b: Model types DP, EP
Output 1, 4
Output 2, 3
Efficiency 2, Operating input voltage range
Vo nom
[V]
Po nom
[W]
Po max
[W]
Vo nom
[V]
Po nom
[W]
Po max
[W]
η2
[%]
Vi min – Vi max4
40 – 100.8 V
η2
[%]
Vi min – Vi max4
67.2 – 150 V
3.3
5.1
12
15
24
92
122
120
120
120
132
183
192
192
192
-
-
-
84 8
88 8
88
88
88
DP1101-9RG
DP1001-9RG
DP1301-9RG
DP1501-9RG
DP1601-9RG
83.5 8
87.5 8
87.5
87
87.5
EP1101-9RG
EP1001-9RG
EP1301-9RG
EP1501-9RG
EP1601-9RG
3.3
5.1
5.1
12
15
24
46
61
61
60
60
60
66
91
91
96
96
96
5.1
5.1
12
12
15
24
61
61
60
60
60
60
91
91
96
96
96
96
86
88
88
88
88
88
DP2101-9RG
DP2001-9RG
DP2020-9RG
DP2320-9RG
DP2540-9RG
DP2660-9RG
86
87.5
87.5
87.5
87
87.5
EP2101-9RG
EP2001-9RG
EP2020-9RG
EP2320-9RG
EP2540-9RG
EP2660-9RG
5.1
5.1
5.1
61
61
61
91
91
91
12, 12 3
15, 15 3
24, 24 3
60 1
60 1
60 1
96 1
96 1
96 1
87.5
88
88
DP3020-9RG
DP3040-9RG
DP3060-9RG
87.5
88
88
EP3020-9RG
EP3040-9RG
EP3060-9RG
5.1, 3.3 7
12, 12 3
15, 15 3
24, 24 3
30
60 1
60 1
60 1
50
96 1
96 1
96 1
12, 12 3
12, 12 3
15, 15 3
24, 24 3
60 1
60 1
60 1
60 1
96 1
96 1
96 1
96 1
85
88
88
88
DP4720-9RG
DP4320-9RG
DP4540-9RG
DP4660-9RG
87.5
87
87.5
EP4720-9RG
EP4320-9RG
EP4540-9RG
EP4660-9RG
Options
-7,
D, T 5, K ⁸,
B0, B1, B3,
non-G
-7,
D, T 6,
B0, B1, B3,
non-G
-7,
D,
B0, B1, B3,
non-G
Table 1c: Model types GP
Output 1, 4
Output 2, 3
Efficiency 2, Operating input voltage range
Vo nom
[V]
Po nom
[W]
Po max
[W]
Vo nom
[V]
Po nom
[W]
Po max
[W]
η
[%]
Vi min – Vi max
21.6 – 50.4 V
3.3
5.1
12
15
24
92
122
120
120
120
132
183
192
192
192
-
-
-
84 8
88 8
88
88.5
88
GP1101-9RG
GP1001-9RG
GP1301-9RG
GP1501-9RG
GP1601-9RG
3.3
5.1
5.1
12
15
24
46
61
61
60
60
60
66
91
91
96
96
96
5.1
5.1
12
12
15
24
61
61
60
60
60
60
91
91
96
96
96
96
86
88
87.5
88
88.5
88
GP2101-9RG
GP2001-9RG
GP2020-9RG
GP2320-9RG
GP2540-9RG
GP2660-9RG
5.1
5.1
5.1
61
61
61
91
91
91
12, 12 3
15, 15 3
24, 24 3
60 1
60 1
60 1
96 1
96 1
96 1
87.5
88.5
88.5
GP3020-9RG
GP3040-9RG
GP3060-9RG
5.1, 3.3 7
12, 12 3
15, 15 3
24, 24 3
30
60 1
60 1
60 1
50
96 1
96 1
96 1
12, 12 3
12, 12 3
15, 15 3
24, 24 3
60 1
60 1
60 1
60 1
96 1
96 1
96 1
96 1
88
88.5
88
GP4720-9RG
GP4320-9RG
GP4540-9RG
GP4660-9RG
3
4
5
6
7
8
1
2
2
Options
4
-7,
D, T 5, K ⁸,
B0, B1, B3,
non-G
-7,
D, T 6,
B0, B1, B3,
non-G
-7,
D,
B0, B1, B3,
non-G
The power of both outputs may in sum not exceed the total power for the specified ambient temperature.
Min efficiency at Vi nom, Po nom, TA = 25 °C. Typical values are approx. 2% better.
Isolated tracking output (±5% Vo nom, if each output is loaded with ≥ 5% of Po nom). Parallel or series configuration possible
Short deviations below Vi min and beyond Vi max according to EN 50155 possible; see table 2.
Only available for models with 5.1 or 3.3 V output
Option T is only available for outputs with 5.1 or 3.3 V. Opt. T excludes opt. R; refer to table 13, pin allocations
Outputs 5.1 and 3.3 V have a common return. Nominal values: 5.1 V / 4 A, 3.3 V / 3 A. Max. values: 5.1 V / 6.5 A, 3.3 V / 5 A.
H15 standard connector for xP1101 and xP1001 models; without option K, the η value for xP1101 is approx 2% better and for xP1001
approx 1% better than for models with option K.
NFND: Not for new designs.
Preferred for new designs
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P Series
90 - 192 W DC-DC Converters
Part Number Description
C P 3 0 20 -9 D T B1 G
Input voltage Vi nom:
24 VDC................................................................. B
48 VDC..................................................................C
72 VDC..................................................................D
110 VDC...............................................................................................................E
36 VDC................................................................. G
Series....................................................................................... P
Number of outputs:
Single output (160 mm case) 4............................... 1
Double output (160 mm case) 4............................. 2
Triple output (160 mm case) 4................................ 3
Quadruple output (160 mm case) 4........................ 4
Nominal voltage output 1 /output 4, Vo1/4 nom:
3.3 V ..................................................................... 1
5.1 V...................................................................... 0
12 V....................................................................... 3
15 V....................................................................... 5
24 V....................................................................... 6
other voltages1................................................... 7, 8
Other specifications and additional features1 ............... 01, ...99
Nominal voltage output 2 / output 3, Vo2/3 nom:
5.1 V.................................................................... 01
3.3 V.................................................................... 10
12 V..................................................................... 20
15 V..................................................................... 40
24 V..................................................................... 60
other voltages and features1...................... 80, ... 99
Operational ambient temperature range TA:
–40 to 71 °C......................................................... -9
–25 to 71 °C (option)............................................ -7
others 1 ............................................................ 0, -6
Output voltage adjust (auxiliary function).................................R
Options: Out OK output........................................................D
Current sharing..................................................... T2
H15 standard connector...................................... K³
Heatsink .................................................B0, B1, B3
RoHS compliant for all 6 substances...................................... G
3
4
1
2
Customer-specific models.
Only available for 3.3 V and 5 V outputs. Option T excludes option R, except for single-output models; refer to table 1.
For single-output models with 3.3 V or 5 V output
Models with 220 mm case length. Just add 5000 to the standard model number, e.g. EP8060-9RG.
Note: The sequence of options must follow the order above. This description is not intended for creating new part numbers.
Example: CP3020-9DTB1G: DC-DC converter, input voltage 33.6 to 75 V, 1 regulated output providing 5.1 V, 2nd powertrain with
2 × 12 V, equipped with option D, option T for output 1, heatsink, ambient temperature –40 to 71 °C, RoHS.
Note: All models exhibit the following auxiliary functions, which are not shown in the type designation: input and output filters, primary
referenced inhibit, sense lines (single-, double- and triple-output models only) and LED indicators.
Product Marking
Basic type designation, safety approval and recognition marks, CE mark, warnings, pin allocation, patents, company logo, specific
type designation, input voltage range, nominal output voltages and output currents, degree of protection, batch no., serial no. and
data code including production site, modification status and date of production. Identification of LEDs.
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P Series
90 - 192 W DC-DC Converters
Output Configuration
The P Series allows high flexibility in output configuration to cover almost every individual requirement, by simply wiring outputs
in parallel, in series, or in independent configuration, as shown in the following diagrams.
Parallel or serial operation of several converters with equal output voltage is possible, however it is not advantageous to connect
converters in parallel without measures to provide reasonable current sharing. Choose suitable single-output models, if available.
Note: Unused tracking outputs should be connected parallel to the respective regulated output.
01006-P
Single-output
model
01007-P
4
Double-output
model
Vo2+
6
Vo+
6
S2+
18
S+
12
S2–
20
Vo2–
10
Vo1+
4
R
16
Vo+
28
i
OK+
22
30
Vi+
OK–
24
32
Vi–
S–
Load
28
i
14
30
Vi+
S1+
12
Vo–
8
32
Vi–
S1–
14
Vo–
10
Vo1–
Fig. 1
Standard configuration (single-output model)
4
S1+
12
S1–
14
28 i
8
Fig. 2
Series output configuration of a double-output model.
The second output is fully regulated.
01013b-P
Double-output
model
Vo1+
01010-P
Load 1
Triple-output
model
Vo1+
4
S1+
12
S1–
14
28 i
30
Vi+
Vo1–
8
30
Vi+
Vo1–
8
32
Vi–
Vo2+
6
32
Vi–
Vo2+
6
S2+
18
Vo2–
10
S2–
20
Vo3+
18
Vo2–
10
Vo3–
20
Load 2
Fig. 3
Independent double-output configuration. Both outputs are
fully regulated
Load 1
Load 2
Load 3
Fig. 4
Independent triple-output configuration. Output 3 is tracking
01012Pa
JM200
Quadrupleoutput
Vo1+
model
Vo1–
4
8
Load 1
Vo4+
12
Load 4
28 i
Load
30
Vi+
Vo4–
14
32
Vi–
Vo2+
6
Vo2–
10
Vo3+
18
Vo3–
20
Load 2
Quadrupleoutput
model
32
Vo3–
20
Vo2+
6
Vo2–
10
Vi+
12
Vi–
Vo4–
14
Vo1+
4
R
Load 3
Fig. 5
Common ground configuration of output 1 with 4 and
independent configuration of output 2 and 3
18
Vo4+
28 i
30
Vo3+
Vo1–
16
8
Load
R2
R1
Fig. 6
Series configuration of all outputs (Vo = 96 V for xP4660).
The R-input influences only outputs 1 and 4. For the values
of R1 and R2, see Output Voltage Adjust.
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P Series
90 - 192 W DC-DC Converters
Functional Description
The power supplies are equipped with two independent flight-forward converters, switching 180° phase-shifted to minimize the
ripple current at the input. They use primary and secondary control circuits in hybrid technology. The two converters, called
"powertrains" (PT). Each powertrain generates either a single output with synchronous rectifier or two isolated outputs, one fully
regulated and the other one tracking (semi-regulated), thus providing up to four output voltages. In some models, both outputs of
a powertrain are internally connected in parallel .
The highly efficient input filter together with very low input capacitance results in a very low and short inrush current. After the
isolating transformer and rectification, the output filter reduces ripple and noise to a minimum without affecting the dynamic
response. Outputs 3 and 4, if available, are tracking (semi-regulated) and exhibit due to the close magnetic coupling of the
common transformer and output inductor together with the circuit symmetry a close voltage regulation. A current limitation circuit
is located on the primary side of each powertrain, limiting the total output current of that powertrain in overload conditions. This
allows for flexible power operation of the outputs from each powertrain. All outputs can either be connected in series or in parallel;
see Electrical Output Data.
An auxiliary converter provides the bias voltages for the primary and secondary referenced control logic and the option circuits. An
oscillator generates a clock pulse of 307 ±1% kHz, which is fed to the control logic of each powertrain. The pulse width modulation
and the magnetic feedback are provided by special ASICs. The converter is only enabled, if the input voltage is within the operating
voltage range.
Double-output powertrains are equipped with an independent monitor sensing the output voltage of the tracking output. It influences
the control logic in order to reduce via the pulse width the voltages of both outputs. In addition, the tracking outputs are protected
by a suppressor diode.
Outputs of single-output powertrains are also protected by a suppressor diode.
The temperature of the heat sink is monitored and causes the converter to disable the outputs. After the temperature dropped,
the converter automatically resumes.
03107d
Output
filter PT1
V o1
V o4
CY
Vi
Input filter
(with varistor)
Output
filter PT2
CY
2 x in
double-output
power trains
V o2
V o3
CY
PT1
Auxiliary
converter
PT2
PT2
Clock
generator
PWM controller,
duty cycle limiter,
non linear FF,
ON/OFF control of
sync. rectifier
Primary options
PT1
Error amplifier,
V o monitor
R
Secondary options
D, i, T
Fig. 7
Block diagram. Powertrains PT1 and PT2 have isolated outputs.
Pin allocation see table 13
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P Series
90 - 192 W DC-DC Converters
Electrical Input Data
General Conditions:
– TA = 25°C, unless TC is specified
– Sense lines connected directly at the connector, inhibit (pin 28) connected to Vi– (pin 32)
– R input open
Table 2a: Input data
Model
BP
Characteristics
Conditions
Io = 0 – Io max
min
typ
GP
max
min
36
21.6
typ
CP
max
min
50.4
33.6
typ
Unit
max
Vi
Operating input voltage
continuous
Vi nom
Nominal input voltage
Vi 2s
For ≤ 2 s
Without lockout
14.4
40
20
52
28.8
81
Vi abs
For ≤ 3 s
Without damage
0
50
0
63
0
100
Ii
Typical input current 1
Vi nom, I o nom
Pi 0
No-load input power 1
4
6.5
4
6.5
5
10
P i inh
Idle input power 1, 4
1
1.5
1
1.5
1
1.5
Ci
Input capacitance
Iinr p
Peak inrush current
tinr rise
Rise time inrush
tr
Rise time inhibit 3
tf
Fall time inhibit
ton
Start-up time 3
TC min – TC max
16
24
Vi min – Vi max, Io = 0
5.6
2
Vi max, I o max
Io max – Vi nom
3
36
0 → Vi min, I o nom
75
V
48
3.7
2.8
A
W
220
220
107
61
64
66
A
50
32
30
µs
5
5
5
5
5
5
110
150
300
µF
ms
Table 2b: Input data
Model
DP 2
Characteristics
Conditions
Io = 0 – Io max
min
typ
EP
max
min
100.8
67.2
typ
Unit
max
Vi
Operating input voltage
continuous
Vi nom
Nominal input voltage
Vi 2s
For ≤ 2 s
Without lockout
38
100.8
66
Vi abs
For ≤ 3 s
Without damage
0
125
0
Ii
Typical input current
Pi 0
No-load input power 1
5
11
5
12
P i inh
Idle input power 1, 4
1
1.7
1.1
1.7
Ci
Input capacitance
15
15
µF
Iinr p
Peak inrush current 2
57
65
A
tinr rise
Rise time inrush
20
20
µs
tr
Rise time inhibit 3
5
5
tf
Fall time inhibit 3
ton
Start-up time 3
3
4
5
1
2
1
TC min – TC max
40 2
72
Vi min – Vi max, Io = 0
Vi max, I o max
Io max – Vi nom
0 → Vi min, I o nom
V
110
154
5
1.9
Vi nom, I o nom
150
200
1.2
5
6
200
200
A
W
ms
Typical values depending on model
According to ETS 300132-2
See fig. 18
Converter inhibited
Vi min = 57.6 V for 0.1 s without lockout (operation with 96 V battery)
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P Series
90 - 192 W DC-DC Converters
Input Fuse and Reverse Polarity
A fuse mounted inside the converter protects against further damage in case of a failure. The fuse is not user-accessible. Reverse
polarity at the input will cause the fuse to blow.
Table 3: Fuse specification
Model
Fuse type
Rating
Reference
BP
very fast blow
2× 10 A, 125 V
Littelfuse Pico 251
GP
very fast blow
2× 10 A, 125 V
Littelfuse Pico 251
CP
very fast blow
10 A, 125 V
Littelfuse Pico 251
DP
very fast blow
7 A, 125 V
Littelfuse Pico 251
EP
very fast blow
5 A, 250 V
Littelfuse Pico 263
Input Transient Protection
A VDR (Voltage Dependent Resistor), the input fuse, and a symmetrical input filter form an effective protection against input
transients, which typically occur in most installations, but especially in battery-driven mobile applications.
Nominal battery voltages in use are: 24, 36, 48, 72, 96, and 110 V. In most cases each nominal value is specified in a tolerance of
–30% to +25%, with short excursions to ±40% or even more.
In some applications, surges according to RIA 12 are specified in addition to those defined in IEC 60571-1 or EN 50155. 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 P Series input ranges have been designed and tested to meet these requirements; see Electromagnetic Immunity.
Input Under- / Overvoltage Lockout
When the input voltage is below Vi 2s min or exceeds Vi 2s max, an internally generated inhibit signal disables the converter. It automatically
recovers, when Vi is back in range.
Inrush Current
The inherent inrush current value is lower than specified in the standard ETS 300132-2. The converters operate with relatively
small input capacitance C i resulting in low inrush current of short duration. As a result, in a power-bus system the units can be hot
plugged-in or disconnected causing negligible disturbances at the input side.
Input Stability with Long Supply Lines
If a converter is connected to the power source by long supply lines exhibiting a considerable inductance Lext, an additional external
capacitor Cext connected across the input pins improves the stability and prevents oscillations.
Actually, a P Series converter with its load acts as negative resistor r i, because the input current I i rises, when the input voltage Vi
decreases. It tends to oscillate with a resonant frequency determined by the line inductance L ex t and the input capacitance Ci + Cext,
damped by the resistor R ext. The whole system is not linear at all and eludes a simple calculation. One basic condition is given by
the formula:
Lext • Po max dV i
_____
Ci + Cext > _________
( ri =
)
Rext • Vi min² dI
i
Rext is the series resistor of the voltage source including the supply lines. If this condition is not fulfilled, the converter may not reach
stable operating conditions. Worst case conditions are a lowest Vi and at highest output power Po.
Low inductance L ext of the supply lines and an additional capacitor Cext are helpful. Recommended values for Cext are given in table 4,
which should allow for stable operation up to an input inductance of 2 mH. C i is specified in table 2.
JM085d
Table 4: Recommended values for Cext
Capacitance
Voltage
BP
1500 μF
40 V
GP
1000 μF
63 V
CP
470 μF
100 V
DP
220 μF
125 V
EP
100 μF
200 V
L ext
R ext
Vi+
Ri
Vo+
+
C ext
Ci
Vi–
Load
Model
Converter
ri
Vo–
Fig. 8
Input configuration
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P Series
90 - 192 W DC-DC Converters
Electrical Output Data
General Conditions:
– TA = 25°C, unless TC is specified.
– Sense lines connected directly at the connector, inhibit (28) connected to Vi– (32).
– R input not connected
Table 5a: Output data for single-output powertrains
Output
Single-output powertrain
Characteristics
Vo
Output voltage
1
V ow
Worst case output voltage
Vo P
Overvoltage protection 2
Io nom
Nominal output current
Io max
Max. output current
Io L
Output current limit 3
vo
Output
noise 4
Switch. frequency
Dynamic
load
regulation
Voltage deviation
vod
td
5
Total incl. spikes
Recovery time
3.3 V
5.1 V
12 V
Unit
Conditions
min
typ
max
min
typ
max
min
typ
max
Vi nom, Io nom
3.28
3.3
3.32
5.07
5.1
5.13
11.94
12
12.06
Vi min – Vi max
TC min – TC max,
(0.02 – 1) Io nom
3.24
3.35
5.02
5.18
11.82
7.14
14.3
4.1
Vi min – Vi max
TC min – TC max
20.5
Vi nom, Io max
BW = 20 MHz
Vi nom
Io max ↔ 1/2 Io max
vo tr
Output voltage trim range
(via R-input)
1.1 Vi min – Vi max
(0.1 – 1) Io max
α vo
Temperature coefficient of Vo
Io nom,
TC min – TC max
4.8
6.45
6.8
14
12
20
18
22
25
18.9
19.8
12.18
15
V
15.8
5
8
22.5
8.4
8.8
A
10
5
5
15
20
20
30
0.7
0.8
1.2
V
0.4
0.3
0.15
ms
1.79
3.63
2.75
±0.02
5.61
6.5
±0.02
mVpp
13.2
±0.02
V
%/K
Table 5b: Output data for single-output powertrains. General conditions as in table 5a
Output
Single-output powertrain
Characteristics
Vo
Conditions
Output voltage
1
V ow
Worst case output voltage
Vo P
Overvoltage protection 2
Io nom
Nominal output current
Io max
Max. output current
Io L
Output current limit
vo
vod
td
5
3
Output
noise 4
Switch. frequency
Dynamic
load
regulation
Voltage deviation
Total incl. spikes
Recovery time
15 V
24 V
Unit
min
typ
max
min
typ
max
Vi nom, Io nom
14.93
15
15.08
23.88
24
24.12
Vi min – Vi max
TC min – TC max,
(0.02 – 1) Io nom
14.78
15.23
23.64
18.9
28.5
17.1
Vi min – Vi max
TC min – TC max
6.8
18
24.36
30
4
2.5
6.4
4
7.2
8.2
4.2
V
31.5
A
4.4
5.0
Vi nom, Io max
15
15
BW = 20 MHz
40
50
1.2
1.5
V
0.2
0.15
ms
Vi nom
Io max ↔ 1/2 Io max
vo tr
Output voltage trim range
(via R-input)
1.1 Vi min – Vi max
(0.1 – 1) Io max
α vo
Temperature coefficient of Vo
Io nom,
TC min – TC max
8.1
16.5
±0.02
13
mVpp
26.4
V
%/K
±0.02
If the output voltages are increased above Vo nom through R-input control or remote sensing, the output power should be reduced
accordingly, so that Po max and TC max are not exceeded.
2
Breakdown voltage of the incorporated suppressor diode at 10 mA (3.3 V, 5.1 V) or 1 mA (≥12 V). Value for 3.3 V for version ≥112.
Exceeding this value might damage the suppressor diode.
3
See Output Power at Reduced Temperature
4
Measured according to IEC/EN 61204 with a probe described in annex A
5
Recovery time until Vo returns to ±1% of Vo; see Dynamic Load Regulation
6
Output voltage limitation by an additional electronic shutdown
1
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P Series
90 - 192 W DC-DC Converters
Table 5 c: Output data for double-output powertrains. General conditions as in table 5a.
Output
train
Double-output power-
Characteristics
Vo
5.1 V
Main output
Output voltage
1
typ
max
min
typ
max
min
typ
max
min
typ
max
Vi nom, Io nom
5.05
5.1
5.15
5.0
5.1
5.2
11.88
12
12.12
11.76
12
12.24
Vi min – Vi max
TC min – TC max,
(0.02 – 1) Io nom
4.95
Vo P
Overvoltage protection 2
none
Vo L
Overvoltage limitation
Io nom
Nominal output current
Io max
Max. output current
Io L
Output current limit 3
vo
Output
noise 4
Switch. frequency
Voltage deviation
td 5
Dynamic
load
regulation
vo tr
Output voltage trim range
(via R-input)
1.1 Vi min – Vi max
(0.1 – 1) Io max
α vo
Temperature coefficient of Vo
Io nom,
TC min – TC max
6
Recovery time
Unit
Tracking output
min
Worst case output voltage
vod
Main output
Conditions
V ow
Total incl. spikes
12 V
Tracking output
Vi min – Vi max
TC min – TC max
5.25
See Output
Voltage Regulation
6.45
11.82
12.18
See Output
Voltage Regulation
6.8
none
none
6.5
none
14.4
5.0
5.0
2.5
2.5
8.0
8.0
4
4
17
20
14.3
15
8.4
V
15.8
A
10
Vi nom, Io max
5
5
15
15
BW = 20 MHz
20
20
30
30
0.8
0.8
1.2
1.2
V
0.3
0.3
0.15
0.15
ms
See Output
Voltage Regulation
V
Vi nom
Io max ↔ 1/2 Io max
2.75
5.61
See Output
Voltage Regulation
6.5
±0.02
13.2
mVpp
±0.02
%/K
Table 5d: Output data for double-output powertrains. General conditions as in table 5a.
Output
Double-output powertrain
15 V
Main output
Characteristics
Conditions
min
typ
max
min
typ
max
min
typ
max
15
15.15
14.7
15
15.3
23.88
24
24.12
23.76
24
24.24
14.85
V ow
Worst case output voltage
Vi min – Vi max
TC min – TC max,
(0.02 – 1) Io nom
14.78
Vo P
Overvoltage protection 2
none
Vo L
Overvoltage limitation 6
none
Io nom
Nominal output current
Io max
Max. output current 3
Io L
Output current limit
vo
Output
noise 4
Switch. frequency
Dynamic
load
regulation
Voltage deviation
td
Recovery time
Tracking output
max
Vi nom, Io nom
5
Main output
typ
Output voltage 1
vod
Tracking output
Unit
min
Vo
Total incl. spikes
24 V
Vi min – Vi max
TC min – TC max
15.23
See Output
Voltage Regulation
17.1
18
23.64
18.9
24.36
none
See Output
Voltage Regulation
28.5
30
none
28.8
2
2
1.25
1.25
3.2
3.2
2
2
6.8
8.2
4.2
V
31.5
A
5.0
Vi nom, Io max
15
15
15
15
BW = 20 MHz
40
40
50
50
1.5
1.5
V
0.15
0.15
ms
See Output
Voltage Regulation
V
1.2
Vi nom
Io max ↔ 1/2 Io max
vo tr
Output voltage trim range
(via R-input)
1.1 Vi min – Vi max
(0.1 – 1) Io max
α vo
Temperature coefficient of Vo
Io nom,
TC min – TC max
1.2
0.2
8.1
0.2
16.5
See Output
Voltage Regulation
13
26.4
±0.02
mVpp
%/K
±0.02
If the output voltages are increased above Vo nom through R-input control or remote sensing, the output power should be reduced
accordingly, so that Po max and TC max are not exceeded.
2
Breakdown voltage of the incorporated suppressor diode at 1 mA. Exceeding this voltage might damage the suppressor diode.
3
See Output Power at Reduced Temperature
4
Measured according to IEC/EN 61204 with a probe described in annex A
5
Recovery time until Vo returns to ±1% of Vo; see Dynamic Load Regulation
6
Output voltage limitation by an additional control loop
1
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P Series
90 - 192 W DC-DC Converters
Parallel and Series Connection
The first outputs of power trains with equal nominal output voltage can be connected in parallel. Where available, we recommend
ordering option T.
Any output can be connected in series with any other output. If the main and the tracking output of the same power train are
connected in series, consider that the effect of the R-input is doubled.
Notes:
• If a tracking output is not used, connect it in parallel to the respective regulated main output.
• Connection of several outputs in parallel should include measures to approximate all output currents. 3.3 and 5 V outputs with option T have
current-share pins (T), which must be interconnected. For other outputs, the load lines should exhibit similar resistance. Parallel connection
of regulated outputs without such precautions is not recommended.
• The maximum output current of series-connected outputs is limited by the output with the lowest current limit.
• Rated output voltages above 48 V (ES1 = energy source class 1) require additional safety measures in order to comply with international
safety standards.
Parallel operation of two double-output converters with series-connected outputs is shown in fig. 10. The link between the T pins
ensures proper current sharing, even though only the first outputs are influenced by T. Sense lines are connected directly at the
connector, and load lines have equal length and section.
JM033a
Rp
26
S2+
18
6
18
S2–
20
S2–
20
24
Out OK –
Vo2–
10
28
i
Vo1+
4
30
Vi+
S1+
12
32
Vi–
S1–
14
R Vo1–
8
Vo1–
Double-output
model
Vo2+
6
S2+
18
Double-output
T
model
Vo2+
26
Out OK+
S2–
20
24
Out OK –
Vo2–
10
28
i
Vo1+
30
Vi+
32
Vi–
22
16
S2+
Out OK+
26
–i
Rp
22
16
+
+
6
Load
+
06158c
Double-output
T
model
Vo2+
26
22
Out OK+
24
Out OK –
Vo2– 10
28
i
Vo1+
30
Vi+
S1+ 12
32
Vi–
S1– 14
4
8
16
6
S2+
18
22
Out OK+
S2–
20
24
Out OK –
Vo2–
10
4
28
i
Vo1+
4
S1+
12
30
Vi+
S1+
12
S1–
14
32
Vi–
S1– 14
R Vo1–
8
16
Fig. 9
Series connection of double-output models.
Sense lines connected at the connector.
+
–i
Vo1–
Load
Double-output
Vo2+
model
8
Fig. 10
Parallel operation of 2 double-output converters with seriesconnected outputs.
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P Series
90 - 192 W DC-DC Converters
Redundant Systems
An example of a redundant system using converters with 2 regulated ouputs (xP2020) is shown in fig. 11. Load 1 is powered with
5.1 V and load 2 with 12 V.
The converters are separated with ORing diodes. If one converter fails, the remaining one still delivers the power to the loads. If
more power is needed, the system may be extended to more parallel converters (n+1 redundancy).
Current sharing of the 5.1 V outputs is ensured by the interconnected T pins, whereas the sense lines are connected after the
ORing diodes to maintain the correct output voltage.
For the 12 V outputs, no current-share feature (option T) is available. As a result, 2 little diodes Ds (loaded by little resistors Rs)
simulate the voltage drop of the ORing diodes. Reasonable current sharing is provided by load lines of equal length and section.
06157c
Rp
DS
S2+
Out OK+
S2–
Out OK–
Vo2–
i
Vo1+
Vi+
S1+
Vi–
S1–
RS
Load 2
+
Double-output
T
model
26
Vo2+
Vo1–
Double-output
T
model
Vo2+
26
DS
S2+
+
S2–
Out OK–
Vo2–
i
Vo1+
Vi+
S1+
Vi–
S1–
–i
RS
Load 1
Out OK+
Vo1–
Wires of equal length and sectinon
Fig. 11
Redundant configuration
Hot Swap
Important: For applications using the hot swap capabilities, dynamic output voltage changes during plug-in and plug-out operations
may occur.
Hold-up time
The converters provide virtually no interruption time. If an interruption time is required, use external output capacitors or input
capacitors of adequate size and decoupling diodes.
Formula for additional external input capacitor:
2 • Po • t h • 100
Ci ext = _____________
(V ti2 – Vi min2) • η
whereas:
C i ext
Po
h
th
V i min
V ti
[mF]
[W]
[%]
[ms]
[V]
[V]
= external input capacitance
= output power
= efficiency
= hold-up time [ms]
= minimum input voltage
= threshold level
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P Series
90 - 192 W DC-DC Converters
Output Voltage Regulation
Line and load regulation of the regulated outputs is so good that input voltage and output current have virtually no influence to the
output voltage.
However, if the tracking output is not loaded, the second control loop may slightly reduce the voltage of the main output. Thus,
unused tracking outputs should be connected in parallel to the respective main output.
The dynamic load regulation is shown in fig. 12.
Vo
Vod
Vo ±1 %
Vod
td
Vo ±1 %
td
t
Io /Io nom
1
0.5
≥ 10 µs
≥ 10 µs
0
05102c
t
Fig. 12
Typical dynamic load regulation of output voltage
Tracking Outputs
The main outputs 1 and 2 are regulated to Vo nom independent of the output current. If the loads on outputs 3 and 4 are too low
( Vo nom (see table 7b).
Note: R inputs of n converters with paralleled outputs may be connected together, but if only one external resistor is used, its value should be
R1/n or R2/n.
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P Series
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JM034b
DoubleR 16
output
powertrain Vo1+
JM035b
Vext
+ –
DoubleR 16
output
powertrain Vo1+
Load 1
i
Vi+
Vo1–
Vi–
Vo4+
R1
Load 1
i
Load 4
Vi+
Vo1–
Vi–
Vo4+
Load 4
Vo4–
2nd powertrain
2nd powertrain
Vo4–
R2
Fig. 19
Output adjust of Vo1 and Vo4 with an external voltage Vext. The
other outputs are not influenced.
Fig. 20
Output adjust of Vo1 and Vo4 using R1 or R2. The other outputs are not influenced.
Table 7a: R1 for Vo < Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R2 not fitted
Vo nom = 3.3 V
Vo nom = 5.1 V
Vo (V)
R1 [kΩ]
Vo (V)
R1 [kΩ]
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
5.62
6.49
7.50
8.66
10.2
12.1
14.3
17.4
22.1
28.7
39.2
61.9
12.7
4.0
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5.0
14.0
15.8
18.2
21.0
24.3
29.4
36.5
47.5
63.4
97.6
200
Vo nom = 12 V
Vo (V)
6.5
7.0
7.5
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
Vo nom = 15 V
R1 [kΩ]
1
13
14
15
16
17
18
19
20
21
22
23
4.22
5.11
6.19
7.5
9.1
11.5
14.7
19.6
27.4
43.2
88.7
Vo (V)
8.0
8.5
9.0
9.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
14.5
Vo nom = 24 V
R1 [kΩ]
1
16
17
18
19
20
21
22
23
24
25
26
27
28
29
4.12
4.75
5.49
6.34
7.5
8.87
10.5
12.7
15.4
29.6
25.5
34.8
54.9
110
Vo (V) 1
14
15
16
17
18
19
20
20.5
21
21.5
22
22.5
23
23.5
R1 [kΩ]
28
30
32
34
36
38
40
41
42
43
44
45
46
47
5.23
6.19
7.5
9.31
11.5
14.7
19.6
22.9
27.4
34.0
43.2
59.0
88.7
182
Table 7b: R2 for Vo > Vo nom ; approximate values (Vi nom, Io nom, series E 96 resistors); R1 not fitted
Vo nom = 3.3 V
Vo nom = 5.1 V
Vo (V)
R1 [kΩ]
Vo (V)
R1 [kΩ]
3.4
3.5
3.6
47.5
24.3
16.3
5.2
5.3
5.4
5.5
5.6
226
115
78.7
59
48.7
1
Vo nom = 12 V
Vo (V)
12.2
12.4
12.6
12.8
13.0
13.2
Vo nom = 15 V
R1 [kΩ]
1
24.4
24.8
25.2
25.6
26.0
26.4
1100
499
332
255
205
174
Vo (V)
15.3
15.5
15.7
16.0
16.2
16.5
1
Vo nom = 24 V
R1 [kΩ]
30.6
31.0
31.4
32.0
32.4
33.0
1130
665
475
332
280
232
Vo (V) 1
24.5
25.0
25.5
26.0
26.4
49.0
50.0
51.0
52.0
52.8
R1 [kΩ]
1820
909
604
464
392
First column: single-output powertrains or double-output powertrains with separated/paralleled outputs, second column: outputs in series
connection.
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P Series
90 - 192 W DC-DC Converters
Sense Lines
Important: Sense lines should always be connected. Incorrectly connected sense lines may damage the converter. If sense pins are left opencircuit, the output voltages are not accurate.
This feature enables compensation of voltage drop across the connector contacts and the load lines including ORing diodes in
true redundant systems.
Applying generously dimensioned cross-section load leads avoids troublesome voltage drop. To minimize noise pick-up, wire
sense lines parallel or twisted to the respective output line. To be sure, connect the sense lines directly at the female connector.
The voltage difference between any sense line and its respective power output pin (as measured on the connector) should not
exceed the following values at nominal output voltage.
Table 8: Voltage compensation allowed using sense lines
Output type
Total drop
Negative line drop
3.3, 5.1 V output
< 0.5 V
< 0.25 V
12, 15, 24 V output
< 1.0 V
< 0.50 V
LED Indicators
The P Series converters exhibit a green LED "In OK", signalling that the input voltage is within the specified range provided that
the unit is not disabled by inhibit signal.
A green LED "Out-OK" indicates for each powertrain that the respective power train is working correctly, i.e. that its output control
loop is locked. This proves with high probability that the regulated output exhibit the correct voltage; see also Option D.
Note: Single-output models exhibit only 1 LED "Out-OK".
2nd Control Loop
The 2nd output voltage of double-output power trains is watched by an independent monitoring circuit. In the case of an overvoltage,
the primary control logic of the power train is influenced to reduce the duty cycle, resulting in a lower voltage on both outputs. Such
an overvoltage may occur, when the 1st output is fully charged and the 2nd output is nearly unloaded – particularly with dynamic
load changes.
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P Series
90 - 192 W DC-DC Converters
Electromagnetic Compatibility (EMC)
A metal oxide VDR together with an 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. The P Series has been
successfully tested to the following specifications:
Electromagnetic Immunity
Table 9: Electromagnetic immunity (type tests)
Phenomenon
Standard
Supply related
surge
EN
50155:2007
clause 12.2.6
Electrostatic
discharge (to
case)
IEC/EN
61000-4-2
Electromagnetic
field
IEC/EN
61000-4-3
Level
Coupling mode 1
-
+i/–i
44
x5
Value
applied
Waveform
1.4 • Vbatt
0.1/1.0/0.1 s
contact discharge
8000 Vp
air discharge
15000 Vp
1/50 ns
20 V/m
AM 80% / 1 kHz
antenna
Source
imped.
0.2 Ω
330 Ω
150 pF
N/A
20 V/m
AM 80% / 1 kHz
5 V/m
N/A
3 V/m
Electrical fast
transients / burst
Surges
IEC/EN
61000-4-4
IEC/EN
61000-4-5
3
7
direct coupling,
+i/c, -i/c, +i/–i,
±4000 Vp
3
capacit. coupl., o/c
±2000 Vp
3
+i/c, -i/c,
±2000 Vp 3
+i/–i
±1000 Vp 3
10 VAC
(140 dBµV)
IEC/EN
61000-4-6
38
i, o, signal wires
Power frequency
magnetic field
IEC/EN
61000-4-8
9
-
3
4
5
6
7
8
9
2
Perf.
crit. 2
yes
A
10 pos. & 10 neg.
discharges
yes
B
80 – 800 MHz
yes
A
yes
A
1 positive
1400 – 2000 MHz
2000 – 2700 MHz
5100 – 6000 MHz
7
3
Conducted
disturbances
1
±2000 Vp
4
In
oper.
800 – 1000 MHz
10 V/m
antenna
6
Test procedure
bursts of 5/50 ns;
5 kHz over 15 ms;
burst period: 300
ms
1.2 / 50 µs
AM 80% / 1 kHz
50 Ω
12 Ω/9
μF
2 Ω/18
μF
150 Ω
300 A/m
60 s positive
60 s negative
transients per
coupling mode
yes
A
yes
B
yes
A
5 pos. & 5 neg.
surges per
coupling mode
yes
A
0.15 – 80 MHz
yes
A
60 s in all 3 axes
yes
A
i = input, o = output, c = case.
A = normal operation, no deviation from specs; B = temporary loss of function or deviation from specs possible.
Measured with an external input cap specified in table 4. Exceeds EN 50121-3-2:2016 table 3.3 and EN 50121-4:2016 table 4.3.
Exceeds EN 50121-3-2:2016 table 5.3 and EN 50121-4:2016 table 2.4.
Corresponds to EN 50121-3-2:2016 table 5.1 and exceeds EN 50121-4:2016 table 2.1.
Corresponds to EN 50121-3-2:2016 table 5.2 and EN 50121-4:2016 table 2.2.
Corresponds to EN 50121-3-2:2016 table 3.2 and EN 50121-4:2016 table 4.2.
Corresponds to EN 50121-3-2:2016 table 3.1 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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P Series
90 - 192 W DC-DC Converters
Electromagnetic Emissions
All conducted emissions (fig. 21) have been tested according to EN 55011, group 1, class A . These limits are much stronger than
requested in EN 50121-3-2:2016, table 2.1, and correspond to EN 50121-4:2016, table 1.1. The limits in fig. 21 apply to quasipeak
values, which are always lower then peak values.
In addition, the values for average must keep a limit 10 dBµV below the limits in fig. 21 (not shown).
Radiated emissions have been tested according to EN 55011 group 1, class A . These limits are similar to the requirements of
EN 50121-3-2:2016 and EN 50121-4:2016, calling up EN 61000-6-4+A1:2011, table 1. The test was executed with horizontal
and vertical polarization. The worse result is shown in fig. 22.
dBµV
80
EN 55011 B qp
10
5
2
20
0
MHz
30
10
0.5
5
20
2
20
1
40
0.1
40
0
EN 55011 B qp
60
1
60
EN 55011 A qp
Fig. 21a
BP 2320-9RD
Typ. conducted disturbance voltage at the input
(Vi nom, Ii nom, resistive load, quasi peak).
Fig. 21b
CP 1001-7RB1
Typ. conducted disturbance voltage at the input
(Vi nom, Ii nom, resitive load, quasi peak).
dBµV/m
dBµV/m
50
TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2009-05-29
Testdistance 10 m, BP4660-9RD B01395787 U00006 U
i =24 V, U
o =24 V I
o = 4 x 1.25 A
50
TÜV-Divina, ESDS 30, BBA 9106/UHALP 9107:Schwarzb., QP, 2015-10-05
Testdistance 10 m, EP1601-9RG, U
i =110 V, U o =24 V I o = 5 A
EN 55011 A
EN 55011 A qp
40
30
30
20
20
10
10
50
100
200
500
1000 MHz
Fig. 22a
Radiated disturbances (quasi peak) in 10 m distance:
BP4660-9RD, Vi nom, Vo = 24 V, Io = 4 × 1.25 A
0
30
JM0037b
JM0036a
40
0
30
MHz
30
EN 55011 A qp
0.5
80
07127b
20
07128b
0.1
dBµV
50
100
200
500
1000 MHz
Fig. 22b
Radiated disturbances (quasi peak) in 10 m distance:
EP1601-9RG, Vi nom = 110 V, Vo = 24 V, Io = 5 A
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P Series
90 - 192 W DC-DC Converters
Immunity to Environmental Conditions
Table 10: Mechanical and climatic stress
Test method
Standard
Test Conditions
Cab
Damp heat
steady state
IEC/EN 60068-2-78
MIL-STD-810D section 507.2
Temperature:
40 °C
Relative humidity:
93 +2/-3 %
Duration:
56 days
Damp heat test,
cyclic
EN50155:2017, clause 13.4.7
IEC/EN 60068-2-30
Temperature:
55 °C and 25 °C
Cycles (respiration effect)
2
Duration:
2x 24 h
Db
Bd
Ad
Ka
Fc
Fh
Ea
Converter
not operating
Converter
not operating
Dry heat test
steady state
EN50155:2017, clause 13.4.5
IEC/EN 60068-2-2
Temperature:
70 °C
Duration:
6h
Cooling test
steady state
EN50155:2017, clause 13.4.4
IEC/EN 60068-2-1
Temperature, duration:
-40 °C, 2 h
Performance test:
+25 °C
Salt mist test
sodium chloride
EN50155:2017, clause 13.4.10
EN 60068-2-11, class ST2
Temperature:
35 ±2 °C
Duration:
16 h
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)
Frequency (1 Oct/min):
10 – 2000 Hz
Random vibration
broad band (digital
control) & guidance
IEC/EN 60068-2-64
Converter
operating
Converter
not operating
Converter
not operating
Test duration:
7.5 h (2.5 h in each axis)
Acceleration spectral density:
0.05 gn2/Hz
Frequency band:
8 – 500 Hz
Acceleration magnitude:
4.9 gn rms
Test duration:
1.5 h (0.5 h in each axis)
Converter
operating
Converter
operating
Shock
(half-sinusoidal)
IEC/EN 60068-2-27
MIL-STD-810D section 516.3
Acceleration amplitude:
50 gn = 490 m/s2
Bump duration:
11 ms
Number of bumps:
18 (3 in each direction)
Shock
EN50155:2017, clause 13.4.11
EN 61373 sect. 10
class B, body mounted 1
Acceleration amplitude:
5.1 gn
Bump duration:
30 ms
Number of bumps:
18 (3 in each direction)
EN50155:2017, clause 13.4.11
EN 61373 sect. 8 and 9
class B, body mounted 1
Acceleration spectral density:
0.02 g n2/Hz
Frequency band:
5 – 150 Hz
Acceleration magnitude:
0.8 g n r ms
Test duration:
15 h (5 h in each axis)
Simulated long life
testing at increased
random vibration
levels
1
Status
±2
Converter
operating
Converter
operating
Converter
operating
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
-7 (option)
Characteristics
min
max
min
Converter operating 1
- 25
71
- 40
71
- 25
95 1
- 40
95 1
- 40
85
- 55
85
Ambient temperature
TC
Case temperature
TS
Storage temperature
Rth C-A
Thermal resistance case to ambient in still air
2
Not operational
1.6 3
typ
Unit
Conditions
TA
typ
-9 (standard)
1.6 3
max
°C
K/W
Operation with Po max requires reduction to TA max = 50 °C, TC max = 85° C respectively; see Thermal Considerations.
Overtemperature shutdown at TC >95 °C (temperature sensor)
3
See table 17 for long case and heatsink options B0, B1, B3.
1
2
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P Series
90 - 192 W DC-DC Converters
Reliability
Table 12: MTBF and device hours
Ratings at specified
case temperature
Model
Ground fixed
CP
340 000 h
Ground mobile
40° C
70° C
88 000 h
42 000 h
40° C
MTBF acc. toMIL-HDBK-217F, notice 2
1
Ground benign
50° C
Demonstrated hours
between failures 1
40 000 h
757 000 h
Statistical values, based upon an average of 4300 working hours per year and in general field use over 5 years; upgrades and customerinduced errors are excluded.
Mechanical Data
The converters are designed for insertion into a 19" rack according to IEC 60297-3. Dimensions in mm.
pin 4
H
20.3
G
F
E
Key Code System
European
Projection
B
C
Front plate
(5.5)
A
D
20
09099i
Silkscreen
without opt. Bx
M3; 5 deep
127
(164 )
100
HEAT SINK
(Opt. Bx)
Measuring
point of case
temperature T C
Silkscreen with
opt. Bx
(171.0 ... 171.9* )
AIRFLOW
PT2
PT1
pin 4
pin 32
70
Back plate
111
104
* 231.0 ...231.9 mm
for long case
(add 5000 to the
part number)
100
95
( 17.6 )
64.9
LED "In OK"
= Ø 4.5
(19.8)
13.22
Out OK
a
b
1 2
In OK
6.4
8.14
c
13.43
20.32 (4 TE)
59.23
LEDs "Out OK"
Alternative LED positions for customer-specific models with long case:
a = "In OK", b = "Out 1 OK", c = "Out 2 OK" (front panel XMD168-G)
Fig. 23
Case Q04, weight approx. 500 g
Aluminum, fully enclosed, black, EP powder coated, self cooling
Note: Long case, elongated by 60 mm for a 220 mm rack depth, is available on request: Add 5000 to the part number !
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P Series
90 - 192 W DC-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 and H15S2 connector.
Pin no. 26, protective earth, is a leading pin to ensure that it makes contact with the female connector first.
Notes:
• The current through each standard H15 contact depends on the female connector, the ambient temperature and the air flow in the region of
the connector. We recommend to limit the mean current to 15 A at 50 °C and to 13 A at 71 °C.
• High currents require a large cross-sectional area of the connections to the female contacts. We recommend solder or screw terminal
contacts. Each faston connection exhibits a resistance of typ. 4 m Ω (max. 8 mΩ), which makes it less suitable for high currents.
• For single-output models with option K, both output contacts must always be used and connected in parallel to the load with large crosssectional area wires or thick copper lands. The efficiency is lower with option K.
• High-current contacts of P1000 models allow for a high output current. Their resistance is only typ. 1 m Ω.
30
32
26
28
22
24
18
20
14
16
10
12
30
6
8
4
10025a
32
Fig. 24a
View of male standard H15 connector.
The Key Code positions are shown in fig. 23.
26
28
22
24
18
20
14
16
8/10
4/6
S10051a
12
Fig. 24b
View of male H15S2 connector (with high-current contacts)
used in P1000 and P1100 without option K. H15-S2
connectors have no Key Code system.
Table 12: Pin allocation
Pin
P1000
P2000
P3000
P4000
41
Vo+
Output 1 pos.
Vo1+
Output 1 pos.
Vo1+
Output 1 pos.
Vo1+
Output 1 pos.
6
Vo+
Output 1 pos.
Vo2+
Output 2 pos.
Vo2+
Output 2 pos.
Vo2+
Output 2 pos.
82
Vo-
Output 1 neg.
Vo1-
Output 1 neg.
Vo1-
Output 1 neg.
Vo1-
Output 1 neg. 6
10 2
Vo-
Output 1 neg.
Vo2-
Output 2 neg.
Vo2-
Output 2 neg.
Vo2-
Output 2 neg.
12
S+
Sense +
S1+
Sense 1 +
S1+
Sense 1 +
Vo4+
Output 4 pos.
14
S-
Sense -
S1-
Sense 1 -
S1-
Sense 1 -
Vo4-
Output 4 neg. 6
R
Adjust of Vo
R
Adjust of Vo1
R
Adjust of Vo1
R
Adjust of Vo1/4
1
16
T
Current share
T
Current share
18
T5
Current share
S2+
Sense 2 +
Vo3+
Output 3 pos.
Vo3+
Output 3 pos.
20
n.c.
Not connected
S2-
Sense 2 -
Vo3-
Output 3 neg.
Vo3-
Output 3 neg.
22
Out OK+
Out OK +
Out OK+
Out OK +
Out OK+
Out OK +
Out OK+
Out OK + 4
n.c.
Not connected
n.c.
Not connected
n.c.
Not connected
n.c.
Not connected
Out OK-
Out OK -
Out OK-
Out OK -
Out OK-
Out OK -
Out OK-
Out OK -4
24
26
2
4
Prot. earth PE
4
4
Prot. earth PE
3
4
4
Prot. earth PE
Prot. earth PE
28
i
Inhibit primary
i
Inhibit primary
i
Inhibit primary
i
Inhibit primary
30
Vi+
Input pos.
Vi+
Input pos.
Vi+
Input pos.
Vi+
Input pos.
32
Vi-
Input neg.
Vi-
Input neg.
Vi-
Input neg.
Vi-
Input neg.
3
4
5
6
1
4
3
Pin 4/6 (high-current contact) for P1000 models with 3.3 V or 5.1 V output (H15S2 connector, no option K)
Pin 8/10 (high-current contact) for P1000 models with 3.3 V or 5.1 V output (H15S2 connector, no option K)
Option T for 3.3 V and 5.1 V powertrains: Only I o1 is influenced
Not connected, if option D is not fitted.
Not connected, if option T is not fitted.
Powertrains with 5.1 V and 3.3 V outputs have a common return: Vo1– and Vo4– are connected together.
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P Series
90 - 192 W DC-DC Converters
Installation Instructions
These converters are components, intended exclusively for inclusion within other equipment by an industrial assembly process or
by a professionally competent person. Installation must strictly follow the national safety regulations in respect of the enclosure,
mounting, creepage distances, clearances, markings and segregation requirements of the end-use application.
Connection to the system shall be made via the female connector H15 or H15S2 (see Accessories). Other installation methods
may not meet the safety requirements. Check for hazardous voltages before altering any connections. Pin 26 (PE) is a leading pin
and is reliably connected to the case. For safety reasons it is essential to connect this pin to the protective earth.
The Vi– input (pin 32) is internally fused. This fuse is designed to protect the converter against overcurrent caused by a failure,
but may not be able to satisfy all requirements. External fuses in the wiring to one or both input pins (no. 30 and/or no. 32) may
therefore be necessary to ensure compliance with local requirements.
Important: If the inhibit function is not used, connect pin 28 (i) with pin 32 (Vi–) to enable the output(s).
Do not open the converter, or the warranty will be invalidated. Make sure that there is sufficient airflow available for convection
cooling. This should be verified by measuring the case temperature at the specified measuring point, when the converter is
operated in the end-use application: TC max should not be exceeded. Ensure that a failure of the converter does not result in a
hazardous condition; see also Safety of Operator-Accessible Output Circuits.
Standards and Approvals
The P Series converters are safety-approved to the latest edition of IEC/EN 62368-1 and UL/CSA 60950-1.
They have been evaluated for:
• Class I equipment
• Building in
• Double or reinforced insulation based on 250 VAC between input and output and between input and auxiliary circuits
• Overvoltage category II
• Pollution degree 2 environment
• The converters fulfill the requirements of a fire enclosure.
CB-scheme is available (CB 06 07 24238 800).
The converters are subject to manufacturing surveillance in accordance with the above mentioned safety standards and with
ISO 9001:2015, IRIS ISO/TS 22163:2017 certified quality and business management system.
Protection Degree and Cleaning Liquids
The DC-DC converters correspond to protection degree IP 40, provided that the female connector is fitted to the converter. Since
the converters are not hermetically sealed. In order to avoid possible damage, any penetration of liquids shall be avoided.
Railway Applications
The converters have been designed observing the railway standards EN 50155:2017 and EN 50121-3-2:2016. All boards are
coated with a protective lacquer.
All models with version V114 (or later, except models with connector H15S2 ) comply with EN 45545, HL1 to HL3. They also comply
with NF-F-16, Class I3/F2 (except when operated in a vertical position, i.e. with the connector on top or on bottom).
Isolation
The electric strength test is performed in the factory as routine test according to EN 62911 and IEC/EN 62368-1. The company
will not honor any warranty claims resulting from incorrectly executed electric strength field tests. The resistance of the earth
connection to the case (< 0.1 Ω) is tested as well.
Table 14: Isolation
Input to
Characteristics
Electric
strength test
Outputs
Factory test 10 s
AC test voltage equivalent
to factory test
4.2
1
Case + Outputs
Outputs
to
Case
Output
to
Output 4
Input
Case
Outputs
2.2 / 2.86 5
1.0
0.5 / 0.7 5
2.2 / 2.86 5
1.0
0.5 / 0.7 5
kVDC
1.5 / 2.0 5
0.7
0.35 / 0.5 5
kVAC
>300 2
>100
>100
MΩ
3.0
1.5 / 2.0 5
0.7
0.35 /
0.5 5
Insulation resistance
>300 2
>300 2
>300 2
>100
Creepage distances
5.0
3.5
1.0
Out OK signals to
Unit
mm
Pretest of subassemblies in accordance with IEC/EN 62368-1
Tested at 500 VDC
3
Option D
4
Powertrains with a combined 5.1 / 3.3 V output have a commun return.
5
2 nd value valid for models with version V114 (or later)
1
2
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P Series
90 - 192 W DC-DC Converters
Safety of Operator-Accessible Output Circuits
If the output circuit of a DC-DC converter is operator accessible, it shall be an ES1 circuit according to the IEC/EN 62368-1 related
safety standards.
The following table shows some possible installation configurations, compliance with which causes the output circuit of the DCDC converter to be an ES1 circuit according to IEC/EN 62368-1 up to a configured output voltage (sum of nominal voltages if in
series or +/– configuration) of 35 V.
However, it is the sole responsibility of the installer to ensure the compliance with the relevant and applicable safety regulations.
Use fuses and earth connections as per table below. See also Installation Instructions.
Table 15: Safety concept leading to an ES1 output circuit
Conditions
Front end
DC-DC converter
Result
Nominal supply
voltage
Minimum required grade of
insulation, to be provided
by the AC-DC front end,
including mains supplied
battery charger
Maximum DC output voltage
from the front end 1
Minimum required safety
status of the front end
output circuit
Measures to achieve the specified safety status of the output
circuit
Safety status
of the DC-DC
converter output
circuit
Mains ≤ 250 VAC
Functional
(i.e. there is no need
for electrical insulation
between the mains supply
voltage and the DC-DC
converter input circuit)
≤ 168 V
Primary circuit
(The nominal voltage
between any input pin and
earth shall not exceed 250
VAC or 240 VDC.)
Double or reinforced insulation,
based on 250 VAC and 240 VDC
(provided by the DC-DC converter) and earthed case 2
ES1 circuit
Earth related hazardous
voltage secondary circuit
(The nominal voltage
between any input pin and
earth shall not exceed 250
VAC or 240 VDC.)
Double or reinforced insulation,
based on the maximum nominal
output voltage from the front
end (both provided by DC-DC
converter) and earthed case 2.
Unearthed hazardous
voltage secondary circuit
Supplementary insulation, based
on 250 VAC and DC and double
or reinforced insulation, based
on the maximum nominal output
voltage from the front end (both
provided by DC-DC converter)
and earthed case 2.
Unearthed hazardous
voltage secondary circuit 3
Basic insulation, based on 250
VAC and DC (provided by the
DC-DC converter)
Basic
Supplementary
The front end output voltage should match the specified input voltage range of the DC-DC converter. The maximum rated input voltage of
EP types is 150 V according to IEC/EN 62368-1.
2
The earth connection has to be provided by the installer according to the relevant safety standards, e.g., IEC/EN 62368-1.
3
Has to be insulated from earth by at least supplementary insulation (by the installer) according to the relevant safety standards,
e.g. IEC/EN 62368-1, based on the maximum nominal output voltage from the front end. If the converter case is accessible, it has to be
earthed or the front end output circuit has to be insulated from the converter case by at least basic insulation, based on the maximum nominal mains supply voltage.
1
~
Mains
~
Max. 250 VAC or 240 VDC
AC-DC
front
end
Battery
Max. 250 VAC or 240 VDC
Fuse
Fuse
10052a
DC-DC
converter
+
ES1
–
Earth
connection
Fig. 25
Schematic safety concept
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P Series
90 - 192 W DC-DC Converters
Description of Options
Option D: Out OK Monitor
Option D monitors the state of the output error amplifiers on both power trains rather than the input voltage, output voltage, or the
current limit. It signals a fault, when one of the error amplifiers reaches its limit, which means that at least one output voltage is not
within its regulation limits. This could occur, because the input voltage is below the minimum level or the load current is too high.
This function is not adjustable.
A galvanically isolated open-collector output generates the “Out OK” signal. The circuit monitors simultaneously that
• the input voltage is present and the inhibit signal enables the converter - same logic as LED “In OK”
• the output voltages are within their limits - same logic as LED(s) “Out OK”.
The open collector is conducting, if the monitored conditions are fulfilled.
This option is located on a subassembly allowing special circuit design on customer request.
Vp
________
Dimensioning of resistor value R p ≥ 50 mA .
Caution: The Out OK circuit is protected by a Zener diode. To prevent damage, the applied current IOK should be limited to ±50 mA. The Zener
diode should not be exposed to more than 0.25 W.
Table 16: Output OK data
Characteristics / Conditions
VOK
Out OK voltage
Output good, IOK < 50 mA
IOK
Out OK current
Output out of range, VOK < 27 V 1
1
+ Vp
06151b
min
typ
0.8
max
Unit
1.5
V
25
µA
for version V115 or later.
22
Output
monitoring
circuit
Rp
IOK
Out OK+
VOK
24
Out OK–
Fig. 26
Output OK circuit (option D)
Option T: Active Current Sharing
For 3.3 V and 5.1 V outputs only. The current share facility should be used, when several converters are operated in parallel.
Examples could be high reliability n+1 redundant systems or systems providing higher output power.
Using this feature reduces the stress of individual converters and improves the reliability of the system. Interconnection of the
current-sharing T-pins causes the converters to share their output currents evenly.
In redundant systems, the outputs of the converters are decoupled by ORing diodes. Consequently, a failure of one converter will
not lead to a system failure.
Since the voltage on the T-pin is referenced to the sense pin S–, the installer must ensure that the S– pins of all parallel converters
are at the same electrical potential and that there are no voltage drops across the connection lines between these pins.
Double-output converters with outputs connected in series can also be paralleled with current sharing, if pins Vo1– of all converters
are connected together; see fig. 10.
If the output voltages of parallel connected single-output converters are programmed to a voltage other than Vo nom by means of
the R pin, the outputs should be adjusted individually within a tolerance of ±1%.
Note: Option T is only available for 3.3 V or 5.1 V single-output power trains and only for output 1.
In double- or triple-output models, option T1 (pin 16) influences only output 1. Then the R-function is not present, since no pin is left for that function.
Option B0, B1, B3: Heat Sink
The converter is fitted with an additional heat sink.
Table 17: Thermal resistance of the case (approx. values)
Case
Thermal resistance
Thickness of case
Standard, 160 mm long
1.6 K/W
< 20 mm
Case, 220 mm long
1.4 K/W
< 20 mm
Option B0
1.5 K/W
< 30 mm
Option B1
1.4 K/W
< 40 mm
Option B3
1.2 K/W
< 50 mm
1
Add 5000 to the part number.
Option G
RoHS compliant for all six substances. Option G should be chosen for new designs.
tech.support@psbel.com
belfuse.com/power-solutions
BCD20010-G Rev AR, 10 May 2021
© 2022 Bel Power Solutions & Protection
Page 25 of 26
P Series
90 - 192 W DC-DC Converters
Accessories
A wide variety of electrical and mechanical accessories are available:
• Mating connectors including faston, screw, solder, or press-fit terminals
• Front panels, system Schroff, for 19" rack 3 U,
configuration 4 TE (G04-Q04), 5 TE (G05-Q04), or 6 TE (G06-Q04), including a support angel.
• Front panels system Schroff, for 19" rack 6 U,
configuration 5 TE (G05-6HE-Q04)
• Mechanical mounting supports for chassis, DIN-rail, and PCB mounting
• Connector retention brackets HZZ01217-G (CRB-Q)
• Different cable connector housings (cable hoods)
H15 female connector, code key system, faston,
screw or other terminals
Connector retention bracket HZZ01217-G
Mounting plate Q for wall mounting (HZZ01215-G)
with connector retention clips Q (HZZ01229-G)
Universal mounting bracket for DIN-rail and chassis mounting
(HZZ00610-G).
Front panel kit G05-6HE-Q01 (HZZ00838) accommodating
two HP units for a 19” DIN-rack with 6 U, 5 TE.
For additional information, see the accessory data sheets listed with each product series or individual model at our website.
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.
tech.support@psbel.com
belfuse.com/power-solutions
BCD20010-G Rev AR, 10 May 2021
© 2022 Bel Power Solutions & Protection
Page 26 of 26
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