M Series
50 Watt DC-DC and AC-DC Converters
Features
• Extremly wide operating input voltage ranges
from 8 to 385 VDC and 85 to 264 VAC, 47 to 440 Hz
• RoHS lead-free-solder and lead-solder-exempted
products available
• Class I equipment
• Input over- and undervoltage lockout
• 1, 2, or 3 individually isolated outputs up to 72 V
• Outputs: SELV, no load, overload, short-circuit proof,
rectangular current limiting characteristic
• Adjustable output voltages with remote on/off
• Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6
• Emissions according to EN 55011/55022
• According to EN 45545 and NF-F-16
(Version V107 or later)
111
4.37"
3U
39
1.54"
8TE
168
6.6"
• All PCBs boards coated by protective lacquer
• Very high reliability
• Battery charger models available
Safety-approved to the latest edition of IEC/EN 60950-1
and UL/CSA 60950-1
Table of Contents
Description........................................................................................2
Model Selection.................................................................................2
Functional Description.......................................................................5
Electrical Input Data..........................................................................6
Electrical Output Data.......................................................................8
Auxiliary Functions..........................................................................12
Electromagnetic Compatibility (EMC)..............................................15
Immunity to Environmental Conditions............................................17
Mechanical Data..............................................................................19
Safety and Installation Instructions..................................................20
Description of Options.....................................................................23
Accessories.....................................................................................30
belfuse.com/power-solutions
BCD20018-G Rev AF, 09-Sep-2020
M Series
50 W DC-DC and AC-DC Converters
Description
The M Series of DC-DC and AC-DC converters represents a broad and flexible range of power supplies for use in advanced industrial electronic systems. Features include high efficiency, reliability, low output voltage noise and excellent dynamic response
to load/line changes due to individual regulation of each output.
The converter inputs are protected against surges and transients occurring at the source lines. An input over- and undervoltage
lockout circuit disables the outputs, if the input voltage is outside the specified range. An inrush current limitation prevents 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
outputs can be inhibited by a logic signal applied to the connector (pin 2). If the inhibit function is not used, pin 2 should be connected to pin 23 to enable the outputs.
LED indicators display the status of the converter and allow visual monitoring of the system at any time.
Full input to output, input to case, output to case, and output to output isolation is provided.
The case design allows operation at nominal load up to 71 °C in a free-air ambient temperature. If forced cooling is provided, the
ambient temperature may exceed 71 °C but the case temperature should remain below 95 °C under all conditions.
A temperature sensor generates an inhibit signal, which disables the outputs, when the case temperature TC exceeds the limit.
The outputs automatically recover, 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” rack system according to IEC 60927-3 or be mounted onto a chassis or a plate.
Model Selection
Non-standard input/output configurations or special custom adaptions are available on request. Table 1 provides an overview of
the basic input and output configurations. More than 1000 different model types have been manufactured with different input/output
configurations and customized specialties. Please consult the company for additional model types.
Table 1a: Standard models AM, BM, FM
Output 1
Output 2
Output 3
Operating Input Voltage Range and Efficiency 1
Options
Vo nom
[VDC]
Io nom
[A]
Vo nom
[VDC]
Io nom
[A]
Vo nom
[VDC]
Io nom
[A]
Vi min – Vi max
8 - 35 VDC
η min
[%]
Vi min – Vi max
14 - 70 VDC
η min
[%]
Vi min – Vi max
20 - 100 VDC
η min
[%]
5.1
12
15
24
48
8.0
4.0
3.4
2.0
1.0
-
-
-
-
AM1001-9RG
AM1301-9RG
AM1501-9RG
AM1601-9RG
AM1901-9RG
72
79
79
81
81
BM1001-9RG
BM1301-9RG
BM1501-9RG
BM1601-9RG
BM1901-9RG
74
80
81
83
83
FM1001-9RG
FM1301-9RG
FM1501-9RG
FM1601-9RG
FM1901-9RG
74
80
81
82
83
-7, P,
D0 - D9,
V0 - V3²,
F, K, A, H,
non-G
5.1
5.1
12
15
24
4.0
4.0
2.0
1.7
1.0
5.1
24
12
15
24
4.0
1.0
2.0
1.7
1.0
-
-
AM2001-9G
AM2060-9G
AM2320-9G
AM2540-9G
AM2660-9G
77
78
-
BM2001-9G
BM2060-9G
BM2320-9G
BM2540-9G
BM2660-9G
79
80
-
FM2320-9G
FM2540-9G
-
80
79
-
-7, P,
D0 - D9,
K, A, H,
non-G
5.1
5.1
5.1
5.0
5.0
5.0
12
15
24
0.7
0.6
0.35
12
15
24
0.7
0.6
0.35
AM3020-9G
AM3040-9G
AM3060-9G
75
75
-
BM3020-9G
BM3040-9G
BM3060-9G
76
76
-
FM3020-9G
FM3040-9G
-
76
76
-
-7, P,
D0 - D9,
K, A, H,
non-G
Min. efficiency at Vi nom and I o nom. Typ. values are approx. 2% better.
Option V0, V2, V3 available only for output 1 = 5.1 V (excludes option D)
1
2
NFND: Not for new designs.
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M Series
50 W DC-DC and AC-DC Converters
Table 1b: Models CM, DM, LM
Output 1
Output 2
Output 3
Operating Input Voltage Range and Efficiency 1
Options
Vo nom
[VDC]
Io nom
[A]
Vo nom
[VDC]
Io nom
[A]
Vo nom
[VDC]
Io nom
[A]
Vi min – Vi max
28 - 140 VDC
η min
[%]
Vi min – Vi max
44 - 220 VDC
η min
[%]
Vi min – Vi max
88 - 372 VDC
85 - 264 VAC 3
5.1
12
15
24
48
8.0
4.0
3.4
2.0
1.0
-
-
-
-
CM1001-9RG
CM1301-9RG
CM1501-9RG
CM1601-9RG
CM1901-9RG
74
80
82
82
82
DM1001-9RG
DM1301-9RG
DM1501-9RG
DM1601-9RG
DM1901-9RG
74
81
82
83
LM1001-9RG
LM1301-9RG
LM1501-9RG
LM1601-9RG
LM1901-9RG
74
80
79
82
82
-7, E 4, P,
D0 - D9,
V0 - V3²,
K, A, H,
non-G
5.1
5.1
12
15
24
4.0
4.0
2.0
1.7
1.0
5.1
24
12
15
24
4.0
1.0
2.0
1.7
1.0
-
-
CM2001-9G
CM2060-9G
CM2320-9G
CM2540-9G
CM2660-9G
79
80
-
DM2001-9G
DM2060-9G
DM2320-9G
DM2540-9G
DM2660-9G
80
80
-
LM2001-9G
LM2060-9G
LM2320-9G
LM2540-9G
LM2660-9G
80
79
-
-7, E 4, P,
D0 - D9,
K, A, H,
non-G
5.1
5.1
5.1
5.0
5.0
5.0
12
15
24
0.7
0.6
0.35
12
15
24
0.7
0.6
0.35
CM3020-9G
CM3040-9G
CM3060-9G
76
76
76
DM3020-9G
DM3040-9G
DM3060-9G
77
76
76
LM3020-9G
LM3040-9G
LM3060-9G
74
73
-
-7, E 4, P,
D0 - D9,
K, A, H,
non-G
η min
[%]
Table 1c: EM and battery charger models
Output 1
Vo nom5
[VDC]
Io nom
[A]
Same Vo nom
and Io nom as
DM models
12
24
36
48
60
1
3
4
5
6
2
3.6
1.8
1.2
0.9
0.72
Output 2
Vo safe6
[VDC]
Vo max
[VDC]
-
-
12.84
25.68
38.52
51.36
64.20
14.15 – 14.60
28.30 – 29.15
42.45 – 43.72
56.60 – 58.30
70.75 – 72.87
Vo nom
[VDC]
Output 3
Io nom
[A]
Vo nom
[VDC]
-
Operating Input Voltage Range & Efficiency1
Io nom
[A]
Same as DM models
-
Same as DM models
Same as DM models
-
-
-
-
Options
Vi min – Vi max
67 - 385 VDC
η min
[%]
Vi min – Vi max
88 - 372 VDC
85 - 264 VAC 3
EM1xxx-9RG
EM2xxx-9RG
EM3xxx-9RG
-
-
-
-7, E, D, A,
non-G
-
-
LM1781-9RD5G
LM1782-9RD5G
LM1783-9RD5G
LM1784-9RD5G
LM1785-9RD5G
79
81
82
81
81
-7, E, A,
non-G
η min
[%]
Min. efficiency at Vi nom and I o nom. Typ. values are approx. 2% better.
Option V0, V2, V3 available only for output 1 = 5.1 V (excludes option D)
Operating frequency range: 47 – 440 Hz; see Safety and Installation Instructions for > 60 Hz !
Option E only available for CM and LM models (not for DM)
V o nom for EM models
Setting voltage with open R-input (battery chargers)
NFND: Not for new designs.
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M Series
50 W DC-DC and AC-DC Converters
Part Number Description
C M 2 5 40 -9 E P D3 A H G
Operating input range Vi:
8 – 35 VDC..................................... A
14 – 70 VDC......................B
20 – 100 VDC......................F
28 – 140 VDC..................... C
44 – 220 VDC.................................... D
67 – 385 VDC......................E
85 – 264 VAC, 88 – 372 VDC..................... L
Series.................................................................................... M
Number of outputs 4......................................................1, 2, 3 4
Output 1, Vo1 nom:
5.1 V.............. 0, 1, 2
12 V...................... 3
15 V.................. 4, 5
24 V...................... 6
other voltages.................. 7, 8
48 V...................... 9
Single-output models (different specs.)........................ 01 – 99
Outputs 2, 3: Vo2 nom, Vo3 nom:
5.1 V......................... 01 – 19
12 V.......................... 20 – 39
15 V.......................... 40 – 59
24 V.......................... 60 – 69
other voltages and specs............... 21 – 99
Ambient temperature range TA: –25 to 71 °C.................... -7
– 40 to 71 °C.....................-9
customer-specific..... -0, -5, -6, -8
Auxiliary functions and options:
Inrush current limitation (CM, EM, LM).......................... E
Output voltage control input (single-output models)...... R ²
Potentiometers for adjustment of output voltages......... P ²
Save data signal (D0 – D9, to be specified).................. D 1
ACFAIL signal (V0, V2, V3, to be specified).................. V ¹
Output voltage test sockets........................................... A
Increased electric strength test voltage......................... H
Input fuse built-in (not accessible)................................. F ³
Coding strip at the connector......................................... K
RoHS-compliant for all 6 substances............................ G
3
4
1
2
Option D excludes option V and vice versa
Feature R is fitted to single-output models only. Option P excludes option R (and vice versa).
Only for FM1000
Models with 220 mm case length. Just add 6000 to the standard model number, e.g., DM3020-9AG → DM9020-9AG.
NFND: Not for new designs.
Preferred for new designs
Note: The sequence of options must follow the order above. The part number description is descriptive only; it is not intended for creating part
numbers.
Example: CM2540-9EPD3AHG: DC-DC converter, operating input voltage range 28 – 140 VDC, providing output 1 with 15 V/1.7 A
and output 2 with 15 V /1.7 A; temperature range –40 to +71 °C, inrush current limitation, equipped with potentiometers,
undervoltage monitor D3, test sockets, tested with higher voltage output to case, RoHS-compliant for all 6 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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M Series
50 W DC-DC and AC-DC Converters
Functional Description
The input voltage is fed via an input fuse, an input filter, a bridge rectifier, and an inrush current limiter to the input capacitor. This
capacitor sources a single-transistor forward converter. 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 main control
circuit senses the main output voltage Vo1 and generates, with respect to the maximum admissible output currents, the control
signal for the primary switching transistor. This signal is transferred to the primary side by a coupling transformer.
The auxiliary output voltages Vo2 and Vo3 are individually regulated by means of secondary switching transistors. Each auxiliary
output’s current is sensed using a current transformer. If one of the outputs is driven into current limit, the other outputs will reduce
their output voltages as well, because all output currents are controlled by the same main control circuit.
03009a
Option P
Main control circuit
Vi+
CY
29
5
Vi–
Input filter
Fuse
1
L
Output 1
filter
2
3
32
26
Forward converter
approx. 70 kHz
N
5
2
i
5
D, V
14
R4
17
G4
20
23
CZ
Control
circuit
output 2
5
Output 2
filter
14
17
CZ
Control
circuit
output 3
Output 3
filter
8
11
CY
1
2
3
4
5
Transient suppressor diode in AM, BM, CM, FM models.
Bridge rectifier in LM, series diode in EM models.
Inrush current limiter (NTC) in CM, DM, EM, LM models (option E: refer to the description of option E).
Single-output models with feature R.
LM-models
Fig. 1
Block diagram, triple-output models
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M Series
50 W DC-DC and AC-DC Converters
Electrical Input Data
General conditions:
- TA = 25 °C, unless TC is specified.
- Connector pins 2 and 23 interconnected, R input not connected; with option P: Vo = Vo nom
Table 2a: Input data
Model
Characteristics
AM
Conditions
min
8
BM
typ
Vi
Operating input voltage
Vi nom
Nominal input voltage
Io = 0 – Io nom
TC min – TC max
Ii
Input current
Vi nom, I o nom2
Pi 0
No-load input power:
– single-output models
– double-output models
– triple-output models
Vi nom
Io1, 2, 3 = 0
1
7
6
P i inh
Idle input power
Inhibited Vi nom
1
Iinr p6
Peak inrush current
Vi = Vi max
tinr r
Rise time
RS = 0 Ω 3
tinr h
Time to half-value
TC = 25 °C
Ri
Input resistance
TC = 25 °C
Ci
Input capacitance
Vi abs
Input voltage limits
without any damage
max
min
35
14
FM
typ
max
min
70
20
typ
CM
max
min
100
28
typ
154 7
15
30
50
60
4.0
2.0
1.2
1.0
1.5
9
9
1
7
6
1.5
1
400
1.5
9
9
1
7
6
1.5
1
500
60
170
1
7
6
1.5
1
A
1.5
9
9
W
1.5
60
60
140
VDC
170 4
40
100
87.5
1.5
9
9
400
50
Unit
max
280
250
824 4
mΩ
2600
4000
670
1100
370
600
370
600
µF
0
40
0
80
0
120
0
160
VDC
Table 2b: Input data
Model
Characteristics
DM
Conditions
min
typ
EM
max
min
typ
-
LM
max
-
Operating input voltage
Vi nom
Nominal input voltage
Ii
Input current
Vi nom, I o nom2
Pi 0
No-load input power:
– single-output models
– double-output models
– triple-output models
Vi nom
Io1, 2, 3 = 0
1
7
6
1.5
9
9
1
7
6
1.5
9
9
P i inh
Idle input power
Inhibited Vi nom
1
1.5
1
1.5
Iinr p
Peak inrush current
Vi = Vi max
tinr r
Rise time
RS = 0 Ω 3
40
40
tinr h
Time to half-value
TC = 25 °C
250
240
Ri
Input resistance
TC = 25 °C
Ci
Input capacitance
6
Vi abs
Input voltage limits
without any damage
44
220
385
88
372
220
310
0.55
0.275
0.2
160
4
2400
4
max
264
110
110
2000
67
typ
85
Vi
Io = 0 – Io nom
TC min – TC max
min
Unit
A
1
7
6
1.5
9
9
1
1.5
W
60 4
4
300
900
6200
4
mΩ
4
140
270
140
270
140
270
0
400
- 400
400
- 400
400
-
-
-
-
0
284
5
VDC
µF
VDC
In AC powered mode (LM models): Nominal input voltage range: 100 – 240 VAC, operating input frequency range: 47 – 440 Hz
With multiple-output models, the same condition for each output applies.
3
RS = source resistance.
4
Value for initial switch-on cycle.
5
1 s max., duty cycle 1% max.
6
I inr p = V i / (Rs + Ri); see Inrush Current.
7
140 V continuously. CM models with version V106 or greater (or with suffix /131) withstand 154 V for 2 s.
1
2
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M Series
50 W DC-DC and AC-DC Converters
Input Fuse
A fuse holder containing a slow-blow type fuse (size: 5 × 20 mm) is mounted in the back plate of the converter. The fuse protects
the converter against severe defects. It may not fully protect it at input voltages exceeding 200 VDC. In applications, where the
converters operate at DC source voltages above 200 VDC, an external fuse or a circuit breaker at system level should be installed.
The fuse and a VDR form together with the input filter an effective protection against high input transients.
Note: For applications, where the fuse should not be accessible; see Option F.
Table 3: Fuse types (slow-blow)
Series
Schurter type
Part number
AM1000 – 3000
SPT 10 A / 250 V
0001.2514
BM1000 – 3000
SPT 8 A / 250 V
0001.2513
FM1000 – 3000
SPT 5 A / 250 V
0001.2511
CM1000 – 3000
SPT 3.15 A / 250 V
0001.2509
DM1000 – 3000
EM1000 – 3000
LM1000 – 3000
SPT 2.5 A / 250 V
0001.2508
Ii [A]
Ii [A]
LM A-EM
04014a
10
AM
BM
1.0
FM
CM
80
400
70
350
60
300
50
250
40
200
30
150
BM
AM
FM
LM
EM
DM
DM
EM
LM
20
100
10
50
CM
t [ms]
0
0.1
1
2
3
4
5
6
Vi DC
________
Vi min DC
Fig. 2
Typical input current versus relative input voltage at
nominal output load
0
0.2
0.5
0.4
1.0
0.6
1.5
0.8
2.0
1.0
2.5
1.2
3.0
1.4
3.5
1.6 A-EM
4.0 LM
Fig. 3
Typical inrush current at initial switch-on. Vi max (DC) and
nominal output load
Inrush Current
The CM, DM, EM, and LM (excluding FM) models incorporate an NTC resistor in the input line, which (during the initial switch-on
cycle) limits the peak inrush current in order to prevent the connectors and external switching devices from damage. Subsequent
switch-on cycles within a short interval will cause an increase of the peak inrush current due to the warming-up of the NTC resistor.
Refer to Option E (only available for CM, EM, and LM.
Input Under-/Overvoltage Lockout
If the input voltage remains below 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 rating Vi abs must be carefully considered (see table Input data).
Note: When Vi is between Vi min and the undervoltage lockout level, the output voltage may be below the value defined in table Output data.
Reverse Polarity
Reverse polarity at the input of AM, BM, CM, DM, and FM models will cause the fuse to blow. In EM and LM models a series diode
will protect the converter. A series diode is not incorporated in AM, BM, CM, DM and FM types to avoid unwanted power losses.
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M Series
50 W DC-DC and AC-DC Converters
Electrical Output Data
General Conditions:
– TA = 25 °C, unless TC is specified.
– Connector pins 2 and 23 interconnected, R input not connected; with option P: Vo = Vo nom
Table 4: Output data
Output voltage
5.1 V
Characteristics
Conditions
min
Vi nom, Io nom 1
5.07
typ
12 V
max
min
5.13
11.93
typ
15 V
max
min
12.07
14.91
typ
24 V
max
min
15.09
23.86
typ
Vo
Output voltage
Vo p
Output overvoltage
protection 5
Io nom
Output current
Vi min – Vi max
see Table 1: Model Selection
Io L
Output current limitation
TC min – TC max
see Fig. 4: Typical voltage Vo Vo versus output currents Io.
Vo
Output
voltage
noise
∆Vo V
Static line regulation
Switching
frequ.
Total
7.5
Vi nom, Io nom 1
IEC/EN 61204
BW = 20 MHz
21
25
48 V
max
min
24.14
47.72
41
typ
Unit
max
48.28
V
85
15
30
25
50
35
70
40
80
50
100
60
120
40
80
40
80
40
80
-
±10
±30
±12
±50
±15
±60
±15
±60
±15
±60
6
25
13
50
17
60
30
80
60
150
0
±15
0
±20
0
±30
0
±40
-
mVpp
Vi min – Vi nom
Vi nom – Vi max
Io nom 1
∆Vo l
Static load regulation
∆Vo lc
Static cross load
regulation 4
Vo d
Dynamic
load
regulation
td
Vo d c
tdc
α Vo
Dynamic
cross load
regulation 4
Vi nom
Io nom – 0 2
Vi nom
Io nom – 0 3
Voltage
deviation
Vi nom
Recovery
time
IEC/EN 61204
mV
±220
±110
±150
±130
±150
0.6
0.6
0.5
1
2
ms
+10
-100
+10
-75
+10
-140
+20
-200
-
mV
Io nom ↔ 1/3 Io nom2
Voltage
deviation
Vi nom
Recovery
time
IEC/EN 61204
0.05
0.5
0.2
0.3
0.5
0.7
1
2
-
ms
Vi min – Vi nom
±0.02
±0.02
±0.02
±0.02
±0.02
%/K
0 – Io nom
±1.0
±2.4
±3.0
±4.8
±9.6
mV/K
Temperature coefficient
∆Vo / ∆TC
Io nom ↔ / I
1
3
3 o nom
With multiple-output models, all outputs are loaded with the nominal current.
Condition for specified output. With multiple-output models, other output(s) loaded with constant current Io nom. See fig. 5 Dynamic load regulation.
3
Condition for non-specified output, individually tested, other output(s) loaded with constant current Io nom. See fig. 5 Dynamic load regulation.
4
Multiple-output models.
5
By suppressor diode.
1
2
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M Series
50 W DC-DC and AC-DC Converters
Output Characteristic and Protection
Each output is protected by a suppressor diode, which under worst case conditions may become a short circuit. The suppressor
diodes are not designed to withstand externally applied overvoltages. Overload at any of the outputs will cause a shutdown of all
outputs. A red LED indicates an overload condition at the respective output.
Vo
Vo nom
Io nom
IoL1
IoL2, IoL3
1.0
0.95
Vo
Io2,Io3
∆Vo I
Vod
td
Io1
0.5
∆Vo I
Vod
td
t
Io/Io nom
1
0.3
0
0
0.5
05022a
1.0
1.2
Io
Io nom
Fig. 4
Typical voltage Vo versus output currents Io.
≥10 µs
≥10 µs
05010a
t
Fig. 5
Dynamic load regulation Vo d versus load change.
Thermal Considerations and Protection
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 on 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 allow TA to pass over 71 °C, if TC max is not exceeded.
For -7 or -9 models at an ambient temperature TA of 85 °C with only convection cooling, the maximum permissible current for each
output is approx. 50% of its nominal value; see figure 6.
A temperature sensor generates an internal inhibit signal disabling the outputs, when the case temperature exceeds TC max. The
outputs automatically recover, when the temperature drops below this limit.
I o /I o nom
Forced cooling
1.0
05031a
0.8
Convection cooling
0.6
T C max
0.4
0.2
0
50
60
70
80
90
100
T A [°C]
Fig. 6
Output current derating versus temperature
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M Series
50 W DC-DC and AC-DC Converters
Parallel and Series Connection
Main outputs of equal nominal voltage can be connected in parallel. It is important to assure that the main output of a multiple-output converter is forced to supply a minimum current of 0.1 A to enable correct operation of its own auxiliary outputs.
In parallel operation, one or more of the main outputs may operate continuously in current limitation, causing an increase of the
case temperature TC. Consequently, a reduction of the max. ambient temperature by 10 K is recommended.
Main or auxiliary outputs can be connected in series with any other output of the same or another converter. In series connection,
the maximum output current is limited by the lowest current limit. Output ripple and regulation values are added. Connection wiring
should be kept as short as possible.
If output terminals are connected together in order to establish multi-voltage configurations, e.g., +5.1 V, ±12 V etc., the common-ground connecting point should be as close as possible to the connectors of the converter in order to avoid excessive output
ripple voltages.
Note: Auxiliary outputs should never be connected in parallel!
Output Current Allocation for Special Models
Output currents differing from those given for standard models (see Model Selection) can be provided on request. A maximum
output power of 50 W should be considered, if an ambient temperature range of – 40 to 71 °C is required. The maximum permissible output currents are indicated in the table below. If the output voltages are different from standard values, the relevant output
currents have to be adapted accordingly.
With reduced maximum ambient temperature or with forced cooling, the total output power may exceed 50 W. Customized configurations always need to be checked by a feasibility study first. Please ask the Company for more information.
Table 5: Current allocation with special models
Output voltage all
types
Vo1/2/3 nom [V]
Output 1
all types
Io1 max [A]
Output 2
AM – LM2000
Io2 max [A]
Output 2
AM – LM3000
Io2 max [A]
Output 3
AM – LM3000
Io3 max [A]
5.1
12
15
24
8.0
4.0
3.4
2.0
4.0
2.0
1.7
1.0
1.8 (2.5 )
1.5
1.2
0.7
5.1
12
15
24
10.0
5.0
4.0
2.5
4.5
2.5
2.0
1.3
5.1
12
15
24
11.0
6.0
4.6
3.0
5.0
3.0
2.3
1.5
2
1
2
Temperature
TA [ °C]
TC [ °C]
1.5
1.2
1.0
0.5
– 40 to 71
– 25 to 95
2.1 (2.8 1)
1.7
1.5
0.9
1.8
1.5
1.3
0.7
– 25 to 60
– 25 to 90
2.4 (3.0 1)
2.0
1.7
1.0
2.0
1.7
1.5
0.8
– 25 to 50
– 25 to 85
1
Special high-current components required.
Vi min has to be increased.
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M Series
50 W DC-DC and AC-DC Converters
Hold-up Time and Output Response
When the input voltage is switched off, the output voltage will remain high for a certain hold-up time t h (see fig. 7) before the output
voltage falls below 0.95 Vo nom. To achieve the hold-up times indicated in fig. 8, AM, BM, CM, DM, and FM models require an external series diode in the input line. This is necessary to prevent the discharge of the input capacitor through the source impedance
or other circuits connected to the same source. EM and LM models have a built-in series diode. In AM, BM, CM, DM, and FM
models, no series diode is built-in, since it would generate additional power losses inside the converter.
Note: For hold-up time with option V, refer to Option V.
The behavior of the outputs is similar with either the input voltage applied or the inhibit switched low.
No output voltage overshoot occurs, when the converter is turned on or off.
th [ms]
05024a
1000
Vo/Vo nom
LM
05025a
0.95
EM
100
0.1
0
tr
tf
10
1
0
AM/BM/FM
t
th
Vi
CM/DM
t
Inhibit
1
1
0
t
0.1
Fig. 7
Output response times versus Vi or inhibit control
1
2
3
4
5
6
Vi DC
______
Vi min DC
Fig. 8
Typical hold-up time t h versus input voltage at Io nom
Table 6: Output response time t r and tf (see fig. 7). Values not applicable for models equipped with option E.
Type of converter
t r at Po = 0 and t f at Po = Po nom
t r and t f at Po = 3/4 Po nom
t r and Po = Po nom
typ
max
typ
max
typ
max
AM – LM1001-9R
AM – LM1301-9R
AM – LM1501-9R
AM – LM1601-9R
AM – LM1901-9R
5
10
5
15
65
10
20
10
30
130
5
15
10
25
100
10
30
20
50
200
10
20
30
40
165
20
30
40
60
330
AM – LM2320-9
AM – LM2540-9
20
15
40
30
30
20
60
40
50
35
100
70
AM – LM3020-9
AM – LM3040-9
55
40
110
80
85
60
170
120
145
100
290
200
Unit
ms
Conditions:
R input not connected. For multiple-output models the figures indicated in the table relate to the output, which reacts slowest. All
outputs are resistively loaded. Variation of the input voltage within Vi min – Vi max does not influence the values considerably.
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M Series
50 W DC-DC and AC-DC Converters
Auxiliary Functions
Inhibit
The outputs of the converters may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied between the
inhibit input i and the negative pin of output 1 (Vo1–). In systems with several converters, this feature can be used, for example, to
control the activation sequence of the converters. If the inhibit function is not required, connect the inhibit pin 2 to pin 23 to enable
the outputs (active low logic, fail safe). The response times are specified in table 6.
I inh [mA]
2.0
06031a
1.2
I inh
i
0.8
V inh
V o = on
0.4
V o = off
0
Vo–
Vi–
06032a
1.6
Vo+
Vi+
V inh = 2.4 V
V inh = 0.8 V
–0.4
–0.8
–50
Fig. 9
Definition of Vinh and Iinh.
–30
0 10
–10
30
50
V inh [V]
Fig. 9
Definition of Vinh and Iinh.
Table 7: Inhibit data
Characteristics
V inh
Inhibit input voltage to keep output voltage
Iinh
Inhibit current
V o = on
V o = off
Conditions
min
Vi min – Vi max
TC min – TC max
- 50
typ
0.8
2.4
50
V inh = 0
- 60
- 100
max
Unit
V
- 220
µA
R-Control for Output Voltage Adjustment
As a standard feature, single-output models without option P offer an adjustable output voltage identified by letter R in the type
designation.
Note: With open R input, Vo = Vo nom.
The output voltage Vo can either be adjusted by an external voltage (Vext) or by an external resistor (Rext1 or Rext2).
The adjustment range is approximative 0 – 110% of Vo nom. For output voltages Vo > Vo nom, the minimum input voltage Vi min
specified in Electrical Input Data increases proportionally to Vo/Vo nom.
JM075
L
Vo+
Vref = 2.5 V
+
Rext 2
4 kΩ
R
Control
logic
Rext1
G
N
+
–
Vext
Vo–
Fig. 11
Output voltage adjustment
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M Series
50 W DC-DC and AC-DC Converters
a) Adjustment by means of an external resistor Rext.
Depending upon the value of the required output voltage, the resistor shall be connected:
either: Between the R and G pin to achieve an output voltage adjustment range of Vo ≈ 0 to 100 % of Vo nom.
Vo
Rext1 ≈ 4 kΩ • –––––––––
Vo nom – Vo
or: Between the R pin and Vo+ to achieve an output voltage range of Vo ≈ 100 to 110% of Vo nom.
(Vo – 2.5 V)
Rext2 ≈ 4 kΩ • ––––––––––––––––––
2.5 V • (Vo/Vo nom – 1)
Caution: To prevent damage, Rext2 should never be less than 47 kΩ.
Note: R inputs of n converters with paralleled outputs may be paralleled too, but if only one external resistor is used, its value should
be Rext1/n or Rext2 / n respectively.
b) Adjustment by means of an external control voltage Vext between G and R pin.
The control voltage range is 0 to 2.75 V and allows for adjustment in the range of Vo ≈ 0 to 110% of Vo nom.
Vo • 2.5 V
Vext ≈ ––––––––
V
o nom
Caution: The external control voltage should be in the range 0 to +3 V to prevent the converter from damage.
Table 8a: Rext1 for Vo < Vo nom (Conditions: Vi nom, Io nom, rounded up to resistor values E 96, Rext2 is not fitted.)
Vo nom = 5.1 V
Vo nom = 12 V
Vo nom = 15 V
Vo nom = 24 V
Vo nom = 48 V
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [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
0.806
1.33
2
2.87
4.02
5.62
8.06
12.1
20
44.2
2
4
6
8
9
10
11
12
13
14
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
0.806
1.33
2
2.87
4.02
5.62
8.06
12.1
20
44.2
8
12
16
20
24
28
32
36
40
44
0.806
1.33
2
2.87
4.02
5.62
8.06
12.1
20
44.2
Table 8b: R2 for Vo > Vo nom (Conditions: Vi nom, Io nom, rounded up to resistor values E 96, Rext1 is not fitted.)
Vo nom = 5.1 V
Vo nom = 12 V
Vo nom = 15 V
Vo nom = 24 V
Vo nom = 48 V
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
Vo [V]
R ext2 [kΩ]
5.15
5.20
5.25
5.30
5.35
5.40
5.45
5.50
464
215
147
110
90.9
78.7
68.1
61.9
12.1
12.2
12.3
12.4
12.5
12.6
12.7
12.8
13.0
13.2
1780
909
619
464
383
316
274
249
200
169
15.2
15.4
15.6
15.8
16.0
16.2
16.4
16.5
1470
750
511
383
332
274
237
226
24.25
24.50
24.75
25.00
25.25
25.50
25.75
26.00
26.25
26.40
3160
1620
1100
825
715
590
511
453
402
383
48.5
49.0
49.5
50.0
50.5
51.0
51.5
52.0
52.5
52.8
6810
3480
2370
1780
1470
1270
1100
953
845
806
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M Series
50 W DC-DC and AC-DC Converters
Display Status of LEDs
Vo1 > 0.95 to 0.98 Vo1 adj
06002a
OK
i
Io L
Vi uv
Vi min
Vi max Vi ov
Vo1 > 0.95 to 0.98 Vo1 adj
Vi
Vi abs
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
Vo1 < 0.95 to 0.98 Vo1 adj
OK
Io L
Io nom
Io
IoL
i
TC max
LEDs “OK” and “Io L” status versus output current
Conditions: Vi min – Vi max, TC ≤ TC max, Vinh ≤ 0.8 V
TC
LED “i ” versus case temperature
Conditions: Vi min – Vi max , Io ≤ Io nom, Vinh ≤ 0.8 V
Vi inh
LED “i ” versus Vinh
Conditions: Vi min – Vi max, Io ≤ Io nom, TC ≤ TC max
TPTC threshold
Vinh threshold
i
-50 V
LED off
+0.8 V
+2.4 V
LED Status undefined
+50 V
LED on
Fig. 12
LED indicators
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M Series
50 W DC-DC and AC-DC Converters
Electromagnetic Compatibility (EMC)
A suppressor diode or a metal oxide VDR (depending upon converter model) together with an input fuse and an 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 M Series has been successfully tested to the following specifications:
Electromagnetic Immunity
Table 9: Immunity type tests
Phenomenon
Standard
Supply related
surge
RIA 12 3
Level
Value
applied
Waveform
3.5 • VBatt
2/20/2 ms
1.5 • VBatt
0.1/1/0.1 s
C
960 Vp
10/100 μs
D3
1800 Vp
5/50 μs
A4
B
Direct transients
E
Indirect couples
transients
Coupling mode 1
+i/–i
3600 Vp
0.5/5 μs
F
4800 Vp
0.1/1 μs
G
8400 Vp
0.05/0.1 μs
H
1800 Vp
5/50 μs
J
3600 Vp
0.5/5 μs
4800 Vp
0.1/1 μs
8400 Vp
0.05/0.1 μs
K
+i/–i, –i/c
–o/c, +o/–o, –o/–i
L
Electrostatic
discharge (to case)
IEC/EN
61000-4-2
45
Electromagnetic
field
IEC/EN
61000-4-3
x6
Electromagnetic
field,
pulse modulated
ENV
50204
Electrical fast
transients / burst
IEC/EN
61000-4-4
IEC/EN
61000-4-5
±8000 Vp
air discharge
±15000 Vp
38
38
39
capacitive, o/c
direct, i/c, +i/–i
AM 80% / 1 kHz
10 V/m
50% duty cycle,
200 Hz repetition
frequency
±2000 Vp
±2000 Vp
±4000 Vp
i/c
2000 Vp
+i/– i
1000 Vp
Conducted
disturbances
IEC/EN
61000-4-6
3 10
i, o, signal wires
Power frequency
magnetic field
IEC/EN
61000-4-8
3 11
-
1/50 ns
20 V/m
antenna
47
4
Surges
contact discharge
10 VAC
(140 dBµV)
bursts of 5/50 ns;
2.5 / 5 kHz over 15 ms;
burst period: 300 ms
1.2 / 50 µs
AM 80% / 1 kHz
Source
imped.
Test procedure
In
oper.
Perf.
crit. 2
0.2 Ω
1 positive surge
yes
A
5 pos. & 5 neg.
impulses
yes
5Ω
100 Ω
A
A 11
330 Ω
150 pF
10 pos. & 10 neg.
discharges
yes
A
80 – 1000 MHz
yes
A 11
900 ±5 MHz
yes
A
N/A
60 s positive
60 s negative
transients per
coupling mode
yes
2Ω
5 pos. & 5 neg.
surges per
coupling mode
yes
A
150 Ω
0.15 – 80 MHz
yes
A
60 s in all 3 axes
yes
A
50 Ω
12 Ω
300 A/m
A 11
A 11
B
i = input, o = output, c = case
A = normal operation, no deviation from specs.; B = normal operation, temporary loss of function or deviation from specs possible
3
RIA 12 covers or exceeds IEC 60571-1 and EN 50155:1995. Surge D corresponds to EN 50155:2001, waveform A; surge G corresponds
to EN 50155:2001, waveform B.
4
Only met with EM (110 V battery) and extended input range models (customer-specific) of BM (24 V battery) and CM (48 V battery). Standard DK models (72 V battery) are not damaged, but overvoltage lockout will occur during the surge.
5
Exceeds EN 50121-3-2:2016 table 5.3 and EN 50121-4:2016 table 1.4.
6
Corresponds to EN 50121-3-2:2016 table 5.1 and exceeds EN 50121-4:2016 table 1.1. Valid for version V104 or higher.
7
Compliance with digital mobile phones.
8
Corresponds to EN 50121-3-2:2016 table 3.2 and EN 50121-4:2066 table 2.2.
9
Covers or exceeds EN 50121-3-2:2016 table 3.3 and EN 50121-4:2016 table 2.3.
10
Corresponds to EN 50121-3-2:2016 table 3.1 and EN 50121-4:2016 table 3.1 (radio frequency common mode).
11
Perf. criterion B for triple-output models.
12
Corresponds to EN 50121-4:2016 table 1.3 for AC systems
1
2
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M Series
50 W DC-DC and AC-DC Converters
Electromagnetic Emissions
dBµV
dBµV
PMM 8000 PLUS: Peak, conducted Vi+, QP + AV, 2011-08-02, 10:48 h
CM1601-9ER, U i =60 V, U o =24 V I o = 2 A
EN 55022 A (av)
60
80
40
20
20
0.2
0.5
1
2
5
10
20 MHz
EN 55022 A (av)
60
40
0
EN 55022 A (qp)
0
0.2
0.5
1
2
5
10
20 MHz
Fig. 13a
Typ. conducted disturbances at the input (quasi-peak and
average) of CM1601-9ER according to IEC/EN 55011/22,
measured at Vi = 60 VDC and Io nom.
Fig. 13b
Typ. conducted disturbances at the input (quasi-peak and
average) of LM1601-9R according to IEC/EN 55011/22,
measured at Vi = 230 VAC and Io nom.
dBµV/m
dBµV/m
TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2011-08-03
Testdistance 10 m, CM1601-9ER, U
i = 60 VDC, U
o =24 V I o = 2 A
50
TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2011-08-02
Testdistance 10 m, LM1601-9R, U
i =230 VAC, U o =24 V I o = 2 A
50
EN 55011 A
EN 55011 A
40
40
JM129
JM130
30
30
300
>300
>300
>100 2
MΩ
Creepage distances
≥ 3.2 3
---
---
---
mm
1
According to IEC/EN 60950, sub-assemblies connecting input to output are pre-tested with 5.6 kVDC or 4 kVAC.
Tested at 300 VDC
3
Input to outputs: ≥ 6.4 mm
1
2
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M Series
50 W DC-DC and AC-DC Converters
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 IEC/EN 60950 safety
standards.
Since the M Series converters provide double or reinforced insulation between input and output based upon a rated primary input
voltage of 250 VAC or 400 VDC, only functional insulation is needed between the AC mains and the input of the converter.
Only voltage adaption and rectification to the specified input voltage range of a DC/DC converter is needed.
Table 15 shows a possible installation configuration, compliance with which causes the output circuit of the DC-DC converter to
be an SELV circuit according to IEC/EN 60950 up to a configured output voltage (sum of nominal voltages if in series or +/– configuration) of 48 V. However, it is the sole responsibility of the installer to assure the compliance with the relevant and applicable
safety regulations.
~
Mains
~
Max. 250 VAC or
400 VDC
AC-DC
front
end
+
Battery
Fuse
Fuse
Max. 250 VAC or
400 VDC
10018a
DC-DC
converter
+
SELV
–
Earth connection
Fig. 17
Schematic safety concept
Table 15: Safety concept leading to an SELV output circuit
Conditions
Front end
Nominal supply
voltage
Minimum required grade
of insulation, to be
provided by the AC-DC
front end, including
mains supplied battery
charger
Maximum rated DC output
voltage from the front end
Mains 250 VAC
Operational (i.e. there
is no need for electrical
isolation between the
mains supply voltage
and the DC-DC
converter input voltage)
400 VDC 1
(The rated voltage between
any input pin and earth can be
up to 250 VAC or 400 VDC)
1
2
DC-DC converter
Result
Minimum required
safety status of the
front end output
circuit
Equipment
Measures to achieve the specified
safety status of the output circuit
Safety status
of the DC-DC
converter
output circuit
Primary circuit
A-LM
Double or reinforced insulation,
based on 250 VAC and 400 VDC
(provided by the DC-DC converter)
and earthed case 2
SELV circuit
The front end output voltage should match the specified operating input voltage range of the DC-DC converter.
The earth connection has to be provided by the installer according to the safety standard IEC/EN 60950.
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M Series
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Description of Options
Table 16: Survey of options
Option
Function of option
Characteristics
-7
Former standard operational ambient temperature range
TA = – 25 to 71 °C
A
Test sockets at front panel for check of output voltage
Vo internally measured at the connector terminals
E
Electronic inrush current limitation circuitry
Active inrush current limitation, only for CM, EM, LM models
P1
Potentiometer for fine adjustment of output voltage
Adjustment range ± 5% of Vo nom, excludes R input
F
Input fuse built-in
Fuse not externally accessible, only for FM1000
H
Enhanced output to case electric strength test voltage
See table Isolation
D
Input and/or output undervoltage monitoring circuitry
Safe data signal output (D0 – D9)
Input and/or output undervoltage monitoring circuitry
ACFAIL signal according to VME specifications (V0, V2, V3)
K
Coding strip at the connector
Ensuring correct population of DIN-racks
G
RoHS
RoHS-compatible for all six substances
2
V23
Models equipped with option P do not provide the R function; pins 14 and 17 are not connected.
Option D excludes option V and vice versa.
3
Only available if main output voltage Vo1 = 5.1 V
1
2
- 7 Former Standard Temperature Range
Option -7 stays for the operational ambient temperature range from –25 to 71 °C, which may be preferred by some customers for
reasons of documentation or approvals.
A Test Sockets
Test sockets (pin Ø = 2 mm, distance d = 5.08 mm) are located at the front of the converter. The output voltage is sensed at the
connector pins inside of the converter. Outputs 2 and 3 of triple-output models are not sensed.
P Potentiometer
Built-in multi-turn potentiometers provide an output voltage adjustment range of minimum ± 5% of Vo nom and are accessible through
holes in the front cover. Compensation of voltage drop across connector and wiring becomes easily achievable. For output voltages Vo > Vo nom, the minimum input voltage according to Electrical Input Data increases proportionally to Vo /Vo nom. Triple-output
models allow only the adjustment of Vo1.
Note: Potentiometers are not recommended for mobile applications.
E Electronic Inrush Current Limitation
Available for CM, EM and LM models.
The standard version of the models CM, DM, EM and LM include a passive inrush current limitation with an NTC resistor. For
applications requiring an improved inrush current limitation, an active electronic circuit as shown in fig.18 has been developed.
Typical inrush current waveforms of units equipped with this option are shown below.
CM models meet the CEPT/ETSI standards for 48 V supply voltage according to ETS 300132-2, if fitted with option E combined
with option D6 (input voltage monitoring). Option D6, externally adjustable via potentiometer, is necessary to disable the converter
at input voltages below the actual service ranges, avoiding an excessive input current when the input voltage is raised slowly according to ETS 300132-2. Option D6 threshold level Vt i + Vh i (refer to description of option D) should be adjusted to 36 – 40.5 V for
48 V nominal supply voltage (for 60 V systems, threshold should be set to 44 – 50 V). The D output (pin 5) should be connected
to the inhibit (pin 2). For applications, where potentiometers are not allowed, refer to option D9.
Table 18: Inrush current characteristics with option E
Characteristics
CM
at Vi = 110 VDC
typ
EM, LM
at Vi = 110 VDC
max
typ
EM, LM
at Vi = 372 VDC
Unit
max
typ
max
Iinr p
Peak inrush current
6.5
8
2.2
4
7.3
10
A
tinr
Inrush current duration
22
30
10
20
20
40
ms
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M Series
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Ii [A]
10
11018a
11019a
Converter
Input filter
8
Control logic
FET
Rectifier
(LM models)
CM at 110 VDC
EM, LM at 372 VDC
6
EM, LM at 110 VDC
4
tinr
tinr
Ii = Po /(Vi • η )
RS
RI
Ci
2
Normal operation:
FET fully conducting
t [ms]
0
0
Fig. 18
Option E block diagram
10
20
30
40
Fig. 19
Typical inrush current waveforms of CM, EM, and LM
converters with option E
Precautions:
In order to avoid overload of the series resistor RI, the on/off switching cycle should be limited to 12 s, if switched on/off continuously. There should not be more than 10 start-up cycles within 20 s at a case temperature of 25 °C.
If CM models are driven by input voltages below 35 VDC or LM models below 100 VAC, the maximum case temperature should
be derated by 10 °C, or the total output power should be derated by 20%. EM and LM models driven by DC input voltages do not
need to be derated within the full specified input voltage range.
F Fuse Not Accessible
Standard M converters have a fuseholder containing a 5 × 20 mm fuse, which is externally accessible and located in the back plate
near to the connector. Some applications require an inaccessible fuse. Option F provides a fuse mounted directly onto the main
PCB inside the case (only FM1000).
The full self-protecting functions of the converter do normally not lead to a broken fuse, except as a result of inverse polarity at
the input of an AM, BM, CM, DM, or FM models, or if a power component inside fails. In such cases the defective converter must
be returned to the Company for repair.
H Enhanced Electric Strenght Test
Electric strength test output to case; see table Isolation.
D Undervoltage Monitor
The input and/or output undervoltage monitor operates independently of the built-in input undervoltage lock-out circuit. A logic “low”
(JFET output) or “high” signal (NPN output) is generated at pin 5, when one of the monitored voltages drops below the preselected
threshold level Vt. The return for this signal is Vo1– (pin 23). The D output recovers, when the monitored voltage(s) exceed(s) Vt
+ V h. The threshold level Vt is either adjustable 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 – D9, as shown in the Table 19.
JFET output (D0 – D4):
Connector 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 I D 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 – D9):
Connector 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.
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M Series
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Table 19: Undervoltage monitor functions
Output type
Monitoring
Minimum adjustment range
of threshold level Vt
Typ. hysteresis Vh [% of Vt ]
for Vt min – Vt max
JFET
NPN
Vi
Vo1
Vt i
Vt o
Vhi
Vho
D1
D5
no
yes
---
3.5 V – 48 V 1
---
2.3 – 1 V
D2
D6
yes
no
Vi min – Vi max 1
3.0 – 0.5 V
---
Vi min – Vi max
3.0 – 0.5 V
“0”
---
“0”
D3
D7
yes
yes
D4
D8
no
yes
---
D0
D9
---
1
0.95 – 0.98 Vo1
0.95 – 0.98 Vo1 2
no
yes
---
3.5 V – 48 V
yes
no
Vi min – Vi max 3, 4
---
yes
yes
Vi min – Vi max
3, 4
2
---
1.8 – 1 V
2.2 – 0.4 V
---
2.2 – 0.4 V
“0”
3
0.95 – 0.98 Vo1
2
Threshold level adjustable by potentiometer (not recommended for mobile applications)
2
Fixed value between 95% and 98% of Vo1 (tracking)
3
Fixed value, resistor-adjusted according to customer’s specification ±2% at 25 °C; individual type number is determined by the company.
4
Adjusted at Io nom
1
Table 20: JFET output (D0 – D4)
Table 21: NPN output (D5 – DD)
Vi, Vo1 status
D output, VD
Vi, Vo1 status
D output, VD
Vi or Vo1 < Vt
low, L, VD ≤ 0.4 V at I D = 2.5 mA
Vi or Vo1 < Vt
high, H, I D ≤ 25 µA at VD = 40 V
Vi and Vo1 > Vt + Vh
high, H, ID ≤ 25 µA at VD = 5.25 V
Vi and Vo1 > Vt + Vh
low, L, VD ≤ 0.4 V at ID = 20 mA
11007a
11006
Vo1+
Vo1+
Rp
Rp
ID
Input
Input
ID
D
D
VD
VD
Vo1–
Vo1–
Fig. 20
Options D0 – D4, JFET output
Fig. 21
Options D5 – D9, NPN output
Threshold tolerances and hysteresis:
If V i is monitored, the internal input voltage after the input filter and rectifier (EM and LM types) is measured. Consequently, this
voltage differs from the voltage at the connector pins by the voltage drop ∆Vti across input filter and rectifier. The threshold level
of the D0 and D9 options is adjusted in the factory at nominal output current Io nom and TA = 25 °C. The value of ∆V ti depends upon
input voltage range (AM, BM, etc.), threshold level Vt, temperature, and input current.
VD
Vhi
∆Vti
11021a
VD low
Vti
Po = Po nom
Po = 0
Po = 0
Po = Po nom
VD high
Vi
Fig. 22
Definition of Vti, ∆Vti , and Vhi (JFET output)
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M Series
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Input voltage monitoring
NPN VD
VD high
11008a
3
VD low
3
3
3
t
0
ID
ID high
ID low
0
t
JFET VD
VD high
VD low
0
th1
Vo1
Vo1 nom
1
0.95
t
tlow min4
tlow min4
tlow min4
thigh min
th1
0
t
Vi [V DC]
Vti + Vhi
Vti
t
0
Input voltage failure
Input voltage sag
Switch-on cycle
Switch-on cycle and subsequent
input voltage failure
Output voltage monitoring
NPN VD
VD high
2
3
3
VD low
t
0
ID
ID high
ID low
0
t
JFET VD
VD high
VD low
0
Vo1
t
tlow min
4
1
2
Vo1 nom
Vto +Vho
Vto
0
Fig. 23
Output voltage failure
Relationship between Vi, Vo, V D, Vo /Vo nom versus time
3
t
4
See Electrical Output Data for hold-up time.
With output voltage monitoring the hold-up time th = 0
The D signal remains high, if the D output is
connected to an external source.
t low min = 40 – 200 ms, typically 80 ms
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V ACFAIL signal (VME)
Available for converters with Vo1 = 5.1 V. This option defines an undervoltage monitoring circuit for the input or the input and main
output voltage equivalent to option D and generates the 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). The pull-up resistor
feeding the open-collector output should be placed on the VME backplane.
After the ACFAIL signal has gone low, the VME standard requires a hold-up time t h of at least 4 ms before the 5.1 V output drops
to 4.875 V, when the 5.1 V output is fully loaded. This hold-up time t h is provided by the internal input capacitance. Consequently
the working input voltage and the threshold level Vti should be adequately above the minimum input voltage Vi min of the converter,
so that enough energy is remaining in the input capacitance. If the input voltage is below the required level, an external hold-up
capacitor (Ci ext) should be added.
Formula for threshold level for desired value of t h:
Vti =
2 • P • (t + 0.3 ms) • 100
√ _______________________
+V
C •η
o
h
i min
i min
where as:
C i min = internal input capacitance [mF],
according to table below
C i ext = external input capacitance [mF]
Po = output power [W]
η
= efficiency [%]
t h
= hold-up time [ms]
V i min = minimum input voltage [V] 1
V ti = threshold level [V]
2
Formula for additional external input capacitor
2 • Po • (t h + 0.3 ms) • 100
Ci ext = ––––––––––––––––––––––
– Ci min
η • (Vti 2 – Vi min2 )
Notes: The threshold level V ti of option V2 and V3 is adjusted in the factory to a value according to the table below. A decoupling diode should
be connected in series with the input of AM, BM, CM, DM, and FM converters to avoid the input capacitance discharging through other loads
connected to the same source voltage. If LM models are powered by AC, an external input capacitor cannot be applied unless an additional
rectifier is provided.
Table 20: Available internal input capacitance and factory potentiometer setting of Ut i with resulting hold-up time
Types
AM
BM
CM
DM
EM
FM
LM
Unit
C i min
2.6
0.67
0.37
0.14
0.14
0.37
0.14
mF
Vt i
9.5
19.5
39
61
104
39
120
VDC
th
0.34
0.69
1.92
1.73
6.69
2.92
8.18
ms
Option V operates independently of the built-in input undervoltage lockout circuit. A logic “low” signal is generated at pin 5 as soon
as one of the monitored voltages drops below the preselected threshold level V t. The return for this signal is Vo1– (pin 23). The
V output recovers, when the monitored voltage exceeds Vt + Vh. The threshold level Vt is either adjustable by a potentiometer,
accessible through a hole in the front cover, or adjusted in the factory to a determined customer-specific value.
Versions V0, V2 and V3 are available as shown below.
Table 21: Undervoltage monitor functions
V output
(VME compatible)
1
2
3
4
Monitoring
Minimum adjustment range of
threshold level Vt
Typical hysteresis Uh [% of Vt ]
for Vt min – Vt max
Vi
Vo1
Vt i
Vt o
Vhi
Vho
V2
yes
no
Vi min – Vi max 1
---
3.0 – 0.5 V
---
V3
yes
yes
Vi min – Vi max
3.0 – 0.5 V
“0”
V0
yes
no
Vi min – Vi max 3, 4
yes
yes
Vi min – Vi max 3, 4
1
0.95 – 0.98 Vo1
2
--0.95 – 0.98 Vo1 2
2.2 – 0.4 V
---
2.2 – 0.4 V
“0”
Threshold level adjustable by potentiometer (not recommended for mobile applications).
Fixed value between 95% and 98% of Vo1 (tracking), output undervoltage monitoring is not a requirement of VME standard.
Adjusted at Io nom.
Fixed value, resistor-adjusted (±2%) acc. to customer’s specifications; individual type designation is determined by the company.
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M Series
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V output (V0, V2, V3):
Connector pin V is internally connected to the open collector of a NPN transistor. The emitter is connected to the negative potential
of output 1. VV 0.6 V (logic low) corresponds to a monitored voltage level (Vi and/or Vo1) < U t. The current IV through the open
collector should not exceed 50 mA. The NPN output is not protected against external overvoltages. VV should not exceed 80 V.
Vo1+
V output, Vv
V i or Vo1 < Vt
low, L, VV ≤ 0.6 V at IV = 50 mA
Vi and Vo1 > Vt + Vh
high, H, IV ≤ 25 µA at VV = 5.1 V
Rp
IV
Input
Vi, Vo1 status
V
VV
Vo1–
Fig. 24
Output configuration of options V0, V2, V3
Threshold tolerances and hysteresis
Vi is monitored after the input filter and rectifier (EM and LM models). Consequently, this voltage differs from the voltage at the
connector pins by the voltage drop ∆Vt i across input filter and rectifier. The threshold level of option V0 is factory-adjusted at Io
and TA = 25 °C. ∆Vt i depends upon the input voltage range (AM, BM, ...), threshold level Vt i, temperature, and input current.
nom
VV
Vhi
∆Vti
VV low
Vti
Po = Po nom
Po = 0
Po = 0
Po = Po nom
VV high
Vi
Fig. 25
Definition of Vti, ∆Vti and Vhi
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M Series
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Input voltage monitoring
V2 VV
UV high
tlow min 2
tlow min 2
tlow min 2
3
3
3
11010a
4
4
2
2
VV low
t
0
tlow min
V3 VV
VV high
3
tlow min
3
3
VV low
t
0
th 1
th 1
Vo1
5.1 V
4.875 V
2.0 V
0
t
Vi [VDC]
Vti + Vhi
Vi
t
0
Input voltage failure
Input voltage sag
Switch-on cycle
Switch-on cycle and subsequent
input voltage failure
Output voltage monitoring
V2 VV
VV high
4
VV low
4
t
0
V3 VV
VV high
VV low
0
tlow min
3
2
1
2
3
3
4
4
t
VME request: minimum 4 ms
t low min = 40 – 200 ms, typically 80 ms
VV level not defined at Vo1 < 2.0 V
The V signal drops simultaneously with the output voltage,
if the pull-up resistor R P is connected to Vo1+. The V signal
remains high, if R P is connected to an external source.
Vo1
5.1 V
4.875 V
2.0 V
0
t
Vi
Vti + Vhi
Vti
0
t
Output voltage failure
Fig. 26
Relationship between Vi, Vo1, VV, I V, and Vo1/Vo nom versus time.
K Coding Strip
A plastic part across the connector ensures correct population of the DIN-rack.
G RoHS
RoHS-compatible for all six substances.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).
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M Series
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Accessories
A great variety of electrical and mechanical accessories are available including:
– Various mating H11 connectors including solder, fast-on, or press-fit terminals
– Pair of connector retention clips HZ Z 01209-G
– Code key system: 5 coding wedges HZZ00202-G
– Various front panels for 19” rack mounting
– Flexible H11 PCB board HZ Z 01208-G for connecting with a mother board
– Universal mounting bracket UMB-LHMQ (HZZ00610-G) for chassis or DIN-rail mounting in upright position.
– DIN-rail mounting brackets DMB-MHQ (HZZ00619-G)
– Mounting plate M (HZ Z 01208) for chassis or a wall mounting, where only frontal access is given
– Battery sensor [S-KSMH...] for using the converter as battery charger (different cell characteristics).
For additional accessory product information, see the accessory data sheets listed with each product series or individual
model at our web site.
3.81
Fig. 28
Flexible H11 PCB (HZZ01208-G)
Fig. 27
Different front panels
Fig.29
A pair of connector retention clips (HZZ01209-G)
Fig. 30
Mounting plate M (HZZ01210), connector with fast-on
terminals (HZZ00101-G), secured with retention clips
(HZZ01209-G)
Fig. 31
Universal mounting bracket for DIN-rail mounting (HZZ00610-G)
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M Series
50 W DC-DC and AC-DC Converters
European
Projection
9.8 (0.4")
26 (1.02")
09125a
L
56 (2.2")
adhesive tape
L = 2 m (standard length)
other cable lengths on request
Fig. 32
DIN-rail mounting brackets DMB-MHQ (HZZ00619-G)
Fig.33
Battery temperature sensor S-KSMH
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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