1-155777G - BEL POWER SOLUTIONS

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 1 of 26 www.power-one.com

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 occuring 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 converters are designed and

built according to the international safety standard

IEC/EN 60950-1 and UL/CSA 60950-1, and they have been

approved by the safety agencies TÜV and UL.

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.

Features

• Extremly wide operating input voltage ranges from 8 to

385 VDC and 85 to 264 VAC, 47 to 440 Hz

• RoHS lead-solder exemption compliant

• Class I equipment

• Input over- and undervoltage lockout

• 1, 2, or 3 individually isolated and controlled outputs up

to 64 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

• PCBs protected by lacquer

• Very high reliability

• Battery charger models available

Table of Contents Page Page

168

6.6"

1.54"

8TE

111

4.37

Safety according to IEC/EN 60950-1 and UL/CSA 60950-1

Description .............................................................................1

Model Selection .....................................................................2

Functional Description ...........................................................4

Electrical Input Data...............................................................5

Electrical Output Data ............................................................7

Auxiliary Functions...............................................................10

Electromagnetic Compatibility (EMC) ..................................13

Immunity to Environmental Conditions ................................15

Mechanical Data ..................................................................16

Safety and Installation Instructions ......................................17

Description of Options .........................................................19

Accessories..........................................................................25

EC Declaration of Conformity ..............................................26

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 2 of 26 www.power-one.com

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

Table 1a: Standard models AM, BM, FM

Output 1 Output 2 Output 3 Operating input voltage range and efficiency 1 Options 3

Vo nom Io nom Vo nom Io nom V

nom Io nom Vi min – Vi max ηη

ηη

ηmin Vi min – Vi max ηη

ηη

ηmin Vi min – Vi max ηη

ηη

ηmin

[VDC] [A] [VDC] [A] [VDC] [A] 8 – 35 VDC [%] 14 – 70 VDC [%] 20 – 100 VDC [%]

5.1 8.0 - - - - AM1001-9R 72 BM1001-9R 74 FM1001-9R 74 -7, A, F, H

12.0 4.0 - - - - AM1301-9R 79 BM1301-9R 80 FM1301-9R 80 P, D0 – D9

15.0 3.4 - - - - AM1501-9R 79 BM1501-9R 81 FM1501-9R 81 V0 – V3 3

24.0 2.0 - - - - AM1601-9R 81 BM1601-9R 83 FM1601-9R 82

48.0 1.0 - - - - AM1901-9R 81 BM1901-9R 83 FM1901-9R 83

12.0 2.0 12.0 2.0 - - AM2320-9 77 BM2320-9 79 FM2320-9 80 -7, A, F, H

15.0 1.7 15.0 1.7 - - AM2540-9 78 BM2540-9 80 FM2540-9 79 P, D0 – D9

5.1 5.0 12.0 0.7 12.0 0.7 AM3020-9 75 BM3020-9 76 FM3020-9 76 -7, A, F, H

5.1 5.0 15.0 0.6 15.0 0.6 AM3040-9 75 BM3040-9 76 FM3040-9 76 D0 – D9

V0 – V3 3

than 1000 different types have been manufactured with

different input/output configurations and customized

specialities. Please consult Power-One for additional

information.

Table 1b: Standard models CM, DM, LM

Output 1 Output 2 Output 3 Operating input voltage range and efficiency 1 Options 3

Vo nom Io nom Vo nom Io nom V nom Io nom Vi min – Vi max ηη

ηη

ηmin Vi min – Vi max ηη

ηη

ηmin Vi min – Vi max ηη

ηη

ηmin

[VDC] [A] [VDC] [A] [VDC] [A] 28 – 140 VDC [%] 44 – 220 VDC [%] 88 – 372 VDC [%]

85 – 264 VAC 2

5.1 8.0 - - - - CM1001-9R 74 DM1001-9R 74 LM1001-9R 73 -7, E, A, F, H

12.0 4.0 - - - - CM1301-9R 80 DM1301-9R 81 LM1301-9R 79 P, D0 – D9

15.0 3.4 - - - - CM1501-9R 82 DM1501-9R 82 LM1501-9R 78 V0 – V3 3

24.0 2.0 - - - - CM1601-9R 82 DM1601-9R 83 LM1601-9R 81

48.0 1.0 - - - - CM1901-9R 82 DM1901-9R 83 LM1901-9R 81

12.0 2.0 12.0 2.0 - - CM2320-9 79 DM2320-9 80 LM2320-9 77 -7, E, A, F, H

15.0 1.7 15.0 1.7 - - CM2540-9 80 DM2540-9 80 LM2540-9 78 P, D0 – D9

5.1 5.0 12.0 0.7 12.0 0.7 CM3020-9 76 DM3020-9 77 LM3020-9 73 -7, E, A, F, H

5.1 5.0 15.0 0.6 15.0 0.6 CM3040-9 76 DM3040-9 76 LM3040-9 71 D0 – D9

V0 – V3 3

Table 1c: EM and battery charger models

Output 1 Output 2 Output 3 Operating input voltage range and efficiency 1 Options 3

Vo Bat 6Io nom Vo safe 5 Vo max Vo nom Io nom Vo nom Io nom Vi min – Vi max ηη

ηη

ηmin Vi min – Vi max ηη

ηη

ηmin

[VDC] [A] [VDC] [VDC] [VDC] [A] [VDC] [A] 67 – 385 VDC [%] 88 – 372 VDC [%]

85 – 264 VAC 2

Same Vo nom - - - - - - EM1xxx-9R 3 - - same as DM

and Io nom -

- same as DM models

- - EM2xxx-9R 3 - - models 3

DM models -

- same as DM models

same as DM models

EM3xxx-9R 3 --

12 3.6 12.84 14.15 – 14.6 - - - - - - LM1781-9RD5 79 -7, E, F, A

24 1.8 25.68 28.3 – 29.15 - - - - - - LM1782-9RD5 81

36 1.2 38.52 42.45 – 43.72 - - - - - - LM1783-9RD5 82

48 0.9 51.36 56.6 – 58.3 - - - - - - LM1784-9RD5 81

60 0.72 64.2 70.75 – 72.87 - - - - - - LM1785-9RD5 81

1Min. efficiency at Vi nom and Io nom. Typ. values are approx. 2% better.

2Frequency range: 47 – 440 Hz

3Ask Power-One for availability!

4Option V0, V2, V3 available only for output 1 = 5.1 V (excludes option R)

5Setting voltage with open R-input (battery chargers)

6Vo nom for EM models

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 3 of 26 www.power-one.com

Part Number Description

C M 2 5 40 -9 E P D3 A H F

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 1

85 – 264 VAC, 88 – 372 VDC ................... L

Series...................................................................................M

Number of outputs ........................................................1, 2, 3

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 3

ACFAIL signal (V0, V2, V3, to be specified) ................V 3

Output voltage test sockets..........................................A

Increased electric strength test voltage ....................... H 1

Input fuse built-in (not accessible) ...............................F

1Ask Power-One for availability

2Feature R excludes option P and vice versa

3Option D excludes option V and vice versa

Example: CM2540-9EPD3AHF: DC-DC converter,operating input voltage range 28 – 140 V, 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, a built-in fuse, and tested with higher voltage output to case.

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 4 of 26 www.power-one.com

Functional Description

The input voltage is fed via an input fuse, an input filter, a

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 ripples 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.

1Transient suppressor diode in A M, BM, C M, FM models.

2Bridge rectifier in LM, series diode in EM models.

3Inrush current limiter (NTC) in C M, DM, E M, LM models (option E: refer to the description of option E).

4Single-output models with feature R.

5LM-models

Fig. 1

Block diagram, triple-output models

Input filter

Output 1

filter

Output 3

filter

Output 2

filter

Control

circuit

output 3

Main control circuit

Control

circuit

output 2

Fuse

Option P

Forward converter

approx. 70 kHz

Vi+

Vi–

D, V

03009a

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 5 of 26 www.power-one.com

Table 2b: Input data

Input DM EM LM Unit

Characteristics Conditions min typ max min typ max min typ max

ViOperating input voltage Io = 0 – Io nom - - 85 264 VAC 1

TC min – TC max 44 220 67 385 88 372 VDC

Vi nom Nominal input voltage 110 220 310

IiInput current Vi nom, Io nom 20.55 0.275 0.20 A

Pi 0 No-load input power: Vi nom

Single-output model Io1,2,3 = 0 1 1.5 1 1.5 1 1.5 W

Double-output model 7 9 7 9 7 9

Triple-output model 6 9 6 9 6 9

Pi inh Idle input power inhibit mode 2 2 2

Iinr p 6Peak inrush current Vi = Vi max 110 4160 460 4A

tinr r Rise time RS = 0 Ω 3 40 40 300 µs

tinr h Time to half-value TC = 25 °C 250 240 900

RiInput resistance TC = 25 °C 2000 4 2400 4 6200 4 mΩ

CiInput capacitance 140 270 140 270 140 270 µF

Vi abs Input voltage limits 0 400 5–400 400 –400 400 VDC

without any damage ––––0284VAC

1In AC powered mode (LM models): 47 – 440 Hz

2With multiple-output models, the same condition for each output applies.

3RS = source resistance.

4Value for initial switch-on cycle.

51 s max., duty cycle 1% max.

6Iinr p = V i/(Rs + Ri); see Inrush Current.

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

Input AM BM FM CM Unit

Characteristics Conditions min typ max min typ max min typ max min typ max

ViOperating input voltage Io = 0 – Io nom 8 35 14 70 20 100 28 140 VDC

Vi nom Nominal input voltage TC min – TC max 15 30 50 60

IiInput current Vi nom, Io nom 2 4.0 2.0 1.2 1.0 A

Pi 0 No-load input power: Vi nom

Single-output model Io1,2,3 = 0 1 1.5 1 1.5 1 1.5 1 1.5 W

Double-output model 7 9 7 9 7 9 7 9

Triple-output model 6 9 6 9 6 9 6 9

Pi inh Idle input power inhibit mode 2 2 2 2

Iinr p 6 Peak inrush current Vi = Vi max 400 500 400 170 4 A

tinr r Rise time RS = 0 Ω 3 60 50 40 60 µs

tinr h Time to half-value TC = 25 °C 170 100 60 280

RiInput resistance TC = 25 °C 87.5 140 250 824 4 mΩ

CiInput capacitance 2600 4000 670 1100 370 600 370 600 µF

V i abs Input voltage limits 0 40 0 80 0 120 0 160 VDC

without any damage

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 6 of 26 www.power-one.com

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

CM 1000 – 3000 SPT 3.15 A /250 V 0001.2509

DM 1000 – 3000 SPT 2.5 A /250 V 0001.2508

EM 1000 – 3000

L M1000 – 3000

Fig. 2

Typical input current versus relative input voltage at

nominal output load

i DC

_______

i min DC

23456

0.1

1.0

[A]

04014a

70 350

60 300

50 250

40 200

30 150

20 100

10 50

80 400

00.8

2.0 1.0

2.5 1.2

3.0 1.4

3.5 1.6

4.0

0.6

1.5

0.4

1.0

0.2

0.5

A-EM

[A]

t [ms]

LM A-EM

04015a

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.

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 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.

Fig. 3

Typical inrush current at initial switch-on. Vi max (DC) and

nominal output load

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 7 of 26 www.power-one.com

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 Vo nom 5.1 V 12 V 15 V 24 V 48 V Unit

Characteristics Conditions min typ max min typ max min typ max min typ max min typ max

VoOutput voltage Vi nom, Io nom 1 5.07 5.13 11.93 12.07 14.91 15.09 23.86 24.14 47.72 48.28 V

Vo p Output overvoltage 7.5 21 25 41 85

protection 5

Io nom Output current Vi min – Vi max see table 1 Model Selection

Io L Output current TC min – TC max see fig. 4 Typical voltage Vo1 versus output currents Io

limitation

voOutput Switch. freq. Vi nom, Io nom 1 15 30 25 50 35 70 40 80 50 100 mVpp

voltage Total IEC/EN 61204 60 120 40 80 40 80 40 80 -

noise BW = 20 MHz

∆Vo V Static line regulation Vi min – Vi nom ±10 ±30 ±12 ±50 ±15 ±60 ±15 ±60 ±15 ±60 mV

Vi nom – Vi max

Io nom 1

∆Vo I Static load regulation Vi nom 6 25 1350 1760 3080 60150

Io nom – 0 2

∆Vo Ic Static cross load Vi nom 0 ±15 0 ±20 0 ±30 0 ±40 -

regulation 4 Io nom – 0 3

vo d Dynamic Voltage Vi nom ±220 ±110 ±150 ±130 ±150

load deviation Io nom ↔ 1/3 Io nom 2

tdregulation Recovery IEC/EN 61204 0.6 0.6 0.5 1 2 ms

time

vo d c Dynamic Voltage Vi nom +10 +10 +10 +20 - mV

cross load deviation Io nom ↔ 1/3 Io nom 3–100 –75 –140 –200 -

td c

regulation

4Recovery IEC/EN 61204 0.05 0.2 0.5 1 - ms

time 0.5 0.3 0.7 2 -

αVo Temperature Vi min – Vi max ±0.02 ±0.02 ±0.02 ±0.02 ±0.02 %/K

coefficient 0 – Io nom ±1.0 ±2.4 ±3.0 ±4.8 ±9.6 mV/K

∆Vo/∆TC

1With multiple-output models, all outputs are loaded with the nominal current.

2Condition for specified output. With multiple-output models, other output(s) loaded with constant current Io nom. See fig. 5 Dynamic load

regulation.

3Condition for non-specified output, individually tested, other output(s) loaded with constant current Io nom. See fig. 5 Dynamic load

regulation.

4Multiple-output models.

5By suppressor diode.

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 8 of 26 www.power-one.com

Fig. 6

Output current derating versus temperature

Fig. 4

Typical voltage Vo versus output currents Io.

Fig. 5

Dynamic load regulation Vo d versus load change.

1.0

0.5

o nom

1.0 1.2

o nom

oL1

oL2

, I

oL3

0.95

05022a

o nom

Vod

∆V

o I

∆V

o I

≥10 µs

05010a

0.3

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 output s will cause

a shutdown of all outputs. A red LED indicates the overload

condition of the respective output.

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.

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!

0.2

0.4

0.6

0.8

50 60 70 80 90 100

o nom

[°C]

1.0

Forced cooling

05031a

C max

Convection cooling

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 9 of 26 www.power-one.com

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 th (see fig. 7) before the

output voltage falls below 0.9 5 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.

Fig. 7

Output response times versus Vi or inhibit control Fig. 8

Typical hold-up time th versus input voltage at Io nom

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 Power-One for more information.

Table 5: Current allocation with special models

Output voltage Output 1 Output 2 Output 2 Output 3 Temperature

all types all types AM – LM2000 AM – LM3000 AM – LM3000

Vo1/ 2/3 nom [V] Io1 max [A] Io2 max [A] Io2 max [A] Io3 max [A] TA [°C] TC [°C]

5.1 8.0 4.0 1.8 (2.5 1) 1.5 –40 to 71 –25 to 95

12 4.0 2.0 1.5 1.2

15 3.4 1.7 1.2 1.0

24 2.0 1.0 0.7 0.5

25.1 10.0 4.5 2.1 (2.8 1) 1.8 –25 to 60 –25 to 90

12 5.0 2.5 1.7 1.5

15 4.0 2.0 1.5 1.3

24 2.5 1.3 0.9 0.7

5.1 11.0 5.0 2.4 (3.0 1) 2.0 –25 to 50 –25 to 85

12 6.0 3.0 2.0 1.7

15 4.6 2.3 1.7 1.5

24 3.0 1.5 1.0 0.8

1Special high-current components required. 2 Vi min has to be increased.

Inhibit

o nom

0.1

0.95

05025a

234561

0.1

1000

i DC

______

i min DC

[ms]

100

CM/DM

AM/BM/FM

05024a

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 10 of 26 www.power-one.com

Vi+

Vi– Vo–

Vo+

inh

06031a

Table 6: Output response time t r and tf (see fig. 7). Values not applicable for models equipped with option E.

Type of converter tr at Po = 0 and tf at Po = Po nom tr and tf at Po = 3/4 Po nom tr at Po = Po nom Unit

typ max typ max typ max

AM – LM1001-9R 5 10 5 10 10 20 ms

AM – LM1301-9R 10 20 15 30 20 40

AM – LM1501-9R 5 10 10 20 30 60

AM – LM1601-9R 15 30 25 50 40 80

AM – LM1901-9R 65 130 100 200 165 330

AM – LM2320-9 20 40 30 60 50 100

AM – LM2540-9 15 30 20 40 35 70

AM – LM3020-9 55 110 85 170 145 290

AM – LM3040-9 40 80 60 120 100 200

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.

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.

Fig. 9

Definition of Vinh and Iinh.

Fig. 10

Typical inhibit current Iinh versus inhibit voltage Vinh

Table 7: Inhibit data

Characteristics Conditions min typ max Unit

Vinh Inhibit input voltage to keep Vo = on Vi min – Vi max –50 0.8 V

output voltage Vo = off TC min – TC max 2.4 50

Iinh Inhibit current Vinh = 0 –60 –100 –220 µA

1.6

0.8

–0.8

–50

inh

[V]

inh

[mA]

–30 0–10 10 30 50

2.0

1.2

0.4

–0.4

inh

= 0.8 V

= on V

= off

inh

= 2.4 V

06032a

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 11 of 26 www.power-one.com

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] Rext1 [k ΩΩ

ΩΩ

Ω]Vo [V] Rext1 [k ΩΩ

ΩΩ

Ω]Vo [V] Rext1 [k ΩΩ

ΩΩ

Ω]Vo [V] Rext1 [k ΩΩ

ΩΩ

Ω]Vo [V] Rext1 [kΩΩ

ΩΩ

Ω]

0.5 0.432 2.0 0.806 2.0 0.619 4.0 0.806 8.0 0.806

1.0 0.976 3.0 1.33 4.0 1.47 6.0 1.33 12.0 1.33

1.5 1.65 4.0 2.0 6.0 2.67 8.0 2.0 16.0 2.0

2.0 2.61 5.0 2.87 8.0 4.53 10.0 2.87 20.0 2.87

2.5 3.83 6.0 4.02 9.0 6.04 12.0 4.02 24.0 4.02

3.0 5.76 7.0 5.62 10.0 8.06 14.0 5.62 28.0 5.62

3.5 8.66 8.0 8.06 11.0 11.0 16.0 8.06 32.0 8.06

4.0 14.7 9.0 12.1 12.0 16.2 18.0 12.1 36.0 12.1

4.5 30.1 10.0 20.0 13.0 26.1 20.0 20.0 40.0 20.0

5.0 200.0 11.0 44.2 14.0 56.2 22.0 44.2 44.0 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] Rext2 [kΩΩ

ΩΩ

Ω]Vo [V] Rext2 [kΩΩ

ΩΩ

Ω]Vo [V] Rext2 [kΩΩ

ΩΩ

Ω]Vo [V] Rext2 [kΩΩ

ΩΩ

Ω]Vo [V] Rext2 [kΩΩ

ΩΩ

Ω]

5.15 464 12.1 1780 15.2 1470 24.25 3160 48.5 6810

5.20 215 12.2 909 15.4 750 24.50 1620 49.0 3480

5.25 147 12.3 619 15.6 511 24.75 1100 49.5 2370

5.30 110 12.4 464 15.8 383 25.00 825 50.0 1780

5.35 90.9 12.5 383 16.0 332 25.25 715 50.5 1470

5.40 78.7 12.6 316 16.2 274 25.50 590 51.0 1270

5.45 68.1 12.7 274 16.4 237 25.75 511 51.5 1100

5.50 61.9 12.8 249 16.5 226 26.00 453 52.0 953

13.0 200 26.25 402 52.5 845

13.2 169 26.40 383 52.8 806

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.

Fig. 11

Output voltage adjustment

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.

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 ≈ ––––––––

Vo nom

Caution: The external control volt age should be in the range

0 to +3 V to prevent the converter from damage.

Vo+

4 kΩ

ref

= 2.5 V

Control

logic R

ext1

ext2

06087a

Vi–

Vi+

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 12 of 26 www.power-one.com

Display Status of LEDs

LEDs "OK" and "i" status versus input voltage Vi

Conditions: Io ≤ Io nom , TC ≤ TC max, Vinh ≤ 0.8 V

LED "OK" and "Io L" status versus output current Io

Conditions: Vi min – Vi max, TC ≤ TC max , Vinh ≤ 0.8 V

LED "i" versus case temperature

Conditions: Vi min – Vi max, Io ≤ Io nom , Vinh ≤ 0.8 V

LED "i" versus Vinh

Conditions: Vi min – Vi max, Io ≤ Io nom , TC ≤ TC max

> 0.95 to 0.98 V

o1 adj

i max

i ov

i min

i uv

i abs

OKi

> 0.95 to 0.98 V

o1 adj

o nom

o L

< 0.95 to 0.98 V

o1 adj

C max

PTC threshold

inh

+50 V

+0.8 V +2.4 V

-50 V

inh threshold

o L

LED off LED on

LED status undefined

06002a

Fig. 12

Status of LEDs.

Vi uv = undervoltage lockout, Vi ov = overvoltage lockout

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 13 of 26 www.power-one.com

Electromagnetic Immunity

Table 9: Immunity type tests

Phenomenon Standard Level Coupling Value Waveform Source Test In Per-

mode 2 applied imped. procedure oper. form. 3

1 MHz burst IEC III i/o, i/c, o/o, o/c 2500 Vp400 damped 200 Ω2 s per yes A

disturbance 60255-22-1 +i /–i, +o/–o 1000 V p1 MHz waves/s coupling mode

Voltage surge IEC 60571-1 –i /c, +i/–i 800 Vp100 µs 100 Ω1 pos. and 1 neg. yes A

1500 Vp50 µs voltage surge per

3000 Vp5 µs coupling mode

4000 Vp1 µs

7000 Vp100 ns

Supply related RIA 12 A 4 +i/–i 3.5 • Vbatt 2/20/2 ms 0.2 Ω1 positive yes A

surge B 1.5 • Vbatt 0.1/1/0.1 s surge

EN 50155:1995 1.4 • Vbatt 1 Ω

Direct transient RIA 12 C –i/c, +i/–i 960 Vp10/100 µs 5 Ω5 pos. and 5 neg. yes A

EN 50155:1995 D 1800 Vp5/50 µs impulses

(for EN 50 155 E 3600 Vp0.5/5 µs 100 Ω

levels D, G, F 4800 Vp0.1/1 µs

H and L only)

G 8400 Vp0.05/0.1 µs

Indirect coupled H –o/c, +o/–o, –o/–i 1800 V p5/50 µs

transient J 3600 Vp0.5/5 µs

K 4800 Vp0.1/1 µs

L 8400 Vp0.05/0.1 µs A 1

Electrostatic IEC/EN 4 contact discharge 8000 Vp1/50 ns 330 Ω10 positive and yes A

discharge 61000-4-2 air discharge 15000 Vp10 negative

(to case) discharges

Electromagnetic IEC/EN x antenna 20 V/m AM 80% n.a. 26 to 1000 MHz yes A 1

field 61000-4-3 1 kHz

Electromagnetic ENV 50204 4 30 V/m 5 0% duty cycle, 900 ±5 MHz yes A

field, 200 Hz repetition

pulse modulated frequency

Electrical fast IEC/EN 3 capacitive, o/c 2000 V pbursts of 5/50 ns 50 Ω60 s positive yes A 1

transient/burst 61000-4-4 4 direct, i/c, +i /–i 4000 Vp2.5/ 5 kHz over 60 s negative B

15 ms; burst transients per

period: 300 ms coupling mode

Surge IEC/EN 4 i/c 4000 Vp1.2/50 µs 12 Ω5 pos. and 5 neg. yes A

61000-4-5 3 +i/–i 2000 Vp2 Ωsurges per

x i/c, +i/–i 2500 Vp10/700 µs 40 Ωcoupling mode

Conducted IEC/EN 3 i, o, signal wires 10 VAC AM 80% 150 Ω0.15 to 80 MHz yes B

disturbances 61000-4-6 (1 40 d Bm V ) 1 k H z

1For converters with 3 output voltages, temporary deviation from specs possible.

2i = input, o = output, c = case.

3A = Normal operation, no deviation from specifications, B = Temporary deviation from specs.

4Only met with extended input voltage range of BM (24 V battery), CM (48 V battery), and EM (110 V battery) models. Such models are

available on customer's request. Standard DM (110 V battery) will not be damaged, but overvoltage lockout will occur during the surge.

Electromagnetic Comp atibility (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 H Series

has been successfully tested to the following specifications:

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 14 of 26 www.power-one.com

Table 10: Emissions at Vi nom and Io nom (LM at 230 VAC)

Model Level

IEC/EN 55011

IEC/EN 55022 EN 55014

≤30 MHz ≥30 MHz ≥30 MHz

AM1000 B B <limit

AM2000 B B <limit

AM3000 B B <limit

BM1000 B A <limit

BM2000 B B <limit

BM3000 B A <limit

CM1000 B B <limit

CM2000 B B <limit

CM3000 B A <limit

DM1000 B B <limit

DM2000 B B <limit

DM3000 B A <limit

EM1000 B B <limit

EM2000 B B -

EM3000 B A -

FM1000 B A <limit

FM2000 B A >limit

FM3000 B A -

LM1000 B B <limit

LM2000 B B <limit

LM3000 B A <limit

Electromagnetic Emissions

Fig. 13

Typical disturbances (quasi-peak) at the input according to

IEC/EN 55011/22, measured at Vi nom and Io nom.

Fig. 14

Typical radiated emissions according to IEC/EN 55011/22,

normalized to a distance of 10 m, measured at Vi nom and

Io nom.

0.01

0.05

0.1

0.5

[dBµV]

0.02

07007

100

200

500

1000

[dBµV/m]

[MHz]

07036

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 15 of 26 www.power-one.com

Table 13: MTBF

Values at specified Converter model Ground benign Ground fixed Ground mobile Unit

case temperature 40 °C 40 °C 70 °C 50 °C

MTBF 1 AM – LM1000 320 000 130 000 40 000 35 000 h

AM – LM2000 225 000 105 000 32 000 28 000

AM – LM3000 225 000 80 000 28 000 25 000

Device hours 2 AM – LM1000 880 000

AM – LM2000 720 000

AM – LM3000 740 000

1Calculated in accordance with MIL-HDBK-217E

2Statistical values, based on an average of 4300 working hours per year in general field use over 3 years

Immunity to Environment al Conditions

Table 11: Mechanical and climatic stress

Test method Standard Test conditions Status

Cab Damp heat IEC/EN 60068-2-78 Temperature: 40 ±2 °C Converter

steady state MIL-STD-810D section 507.2 Relative humidity: 93 +2/-3 % not

Duration: 56 days operating

Ea Shock IEC/EN 60068-2-27 Acceleration amplitude: 100 gn = 981 m/s2Converter

(half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 6 ms operating

Number of bumps: 18 (3 each direction)

Eb Bump IEC/EN 60068-2-29 Acceleration amplitude: 40 gn = 392 m/s2Converter

(half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 6 ms operating

Number of bumps: 6000 (1000 each direction)

Fc Vibration IEC/EN 60068-2-6 Acceleration amplitude: 0.35 mm (10 – 60 Hz) Converter

(sinusoidal) MIL-STD-810D section 514.3 5 gn = 49 m/s2 (60 – 2000 Hz) operating

Frequency (1 Oct/ min): 10 – 2000 Hz

Test duration: 7.5 h (2.5 h each axis)

Fda Random vibration IEC 60068-2-35 Acceleration spectral density: 0.05 g n2/Hz Converter

wide band DIN 40046 part 23 Frequency band: 20 – 500 Hz operating

Reproducibility Acceleration magnitude: 4.9 gn rms

high Test duration: 3 h (1 h each axis)

Kb Salt mist, cyclic IEC/EN 60068-2-52 Concentration: 5% (30 °C) Converter

(sodium chloride Duration: 2 h per cycle not

NaCl solution) Storage: 40°C, 93% rel. humidity operating

Storage duration: 22 h per cycle

Number of cycles: 3

Table 12: Temperature specifications, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)

Temperature -7 (option) -9 (standard) Unit

Characteristics Conditions min max min max

TAAmbient temperature Operational –25 71 –40 71 °C

TCCase temperature – 25 95 – 40 95

TSStorage temperature Non operational –4 0 100 –55 100

Temperatures

Reliability

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 16 of 26 www.power-one.com

Mechanical Data

Dimensions in mm.

European

Projection

111.2 ±0.8 (3U)

(11.6)

168.5

127

173.7 ±0.5

100 ±0.6

1.6

6TE

Male connector H11 according to DIN 41612

(gold-plated contacts on customer's request)

38.7

95 ±0.5

Measuring point for

case temperatureTC

M 3; depth = 4 mm

(chassis mount)

159.4

Mounting plane of

connector H11

5.08

10.16

15.24

20.32

25.40

30.48

2TE

7.09

17.25

28.6

Mounting holes for connector retention clips

12.17

103

3.27

20.5 12.1

94.5 ±0.1

31.5 ±0.1

ø 3.5

ø 4.0

IoL (LED red)

Test sockets (option A)

Potentiometer(s) (option P)

OK (LED green)

Inhibit i (LED red)

Potentiometer (option D)

or potentiometer (option V)

Front plate

Main

face Rea

face

Back plate

22.30

09012a

Fig. 15

Case M02, weight 770 g (approx.).

Case aluminium, black finish and

self cooling.

Note: Long case, elongated by 60

mm for 220 mm rack depth, is

available on request.

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 17 of 26 www.power-one.com

Safety and Installation Instructions

Connector Pin Allocation

Pin no. 26 (protective earth) is leading, ensuring that it makes

contact with the female connector first.

Table 14: Pin allocation Fig. 16

View of male H11 connector.

Installation Instructions

All M Series converters are components, intended exclusively

for inclusion within other equipment by professional installers.

Installation must strictly follow the national safety regulations

in compliance with the enclosure, mounting, creepage,

clearance, casualty, markings and segregation requirements

of the end-use application.

Connection to the system shall be made via the female

connector H11. Other installation methods may not meet the

safety requirements.

The converters are provided with the leading pin 26 ( ), which

is reliably connected with the case. For safety reasons, it is

essential to connect pin 26 with the protective earth of the

supply system.

An input fuse is connected in the line to pin 32 (Vi– or L ).

Since this fuse is designed to protect the converter in case of

an overcurrent and does not necessarily cover all customer

needs, an external fuse suitable for the application and in

compliance with the local requirements may be necessary in

the wiring to one or both input pins (no. 29 and/or no. 32),

particularily if the phase or neutral line cannot be assigned to

the corresponding terminals (LM models operated with AC).

Important: Whenever the inhibit function is not in use,

pin 2 (i) should be connected to pin 23 (Vo–) to enable

the output(s).

Caution: Do not open the converters, or warranty will

be invalidated.

Make sure that there is sufficient air flow possible for

convection cooling. This should be verified by

measuring the case temperature TC, when the

converter is installed and operated in the end-use

application. The maximum specified case

temperature TC max shall not be exceeded. See also

Thermal Considerations.

Cleaning Agents

In order to avoid possible damage, any penetration

of liquids (e.g., cleaning fluids) has to be prevented,

since the power supplies are not hermetically sealed.

Operation of LM Models at Greater than 63 Hz

In such a case, the converters may exceed the leakage current

of 3.5 mA imposed in the safety standards. A warning marking

is required in the end-use product.

Protection Degree

Condition: Female connector fitted to the converter.

IP 40: All models, except those with options P or A, and

except those with option D/V with potentiometer.

IP 30: All models fitted with options A or option D/V without

potentiometer.

IP 20: All models fitted with option P or with option D/V with

potentiometer.

Railway Applications

The M Series converters have been designed observing the

railway standards EN 50155 and EN 50121. All boards are

coated with a protection lacquer.

Standards and Approvals

The converters correspond to class I equipment and have

been approved according to the standards IEC/EN 60950-1

and UL/CSA 60950-1.

32 29 26 23 20 17 14 11 852

10015

Electrical determination AM – LM1000 AM – LM2000 AM – LM3000

Pin Ident Pin Ident Pin Ident

Inhibit 2 i 2 i 2 i

Safe Data or ACFAIL 5 D or V 55 D or V 55D or V 5

Output voltage (positive) 8 Vo+ 8 n.c. 8 Vo3+

Output voltage (negative) 11 Vo– 11 n.c. 11 Vo3–

Voltage adjust 14 R 1

Adjust return 17 G 1

Output voltage (positive) 14 Vo2+ 14 Vo2+

Output voltage (negative) 17 Vo2– 17 Vo2–

Output voltage (positive) 20 Vo+ 20 Vo1+ 20 Vo1+

Output voltage (negative) 23 Vo– 23 Vo1– 23 Vo1–

Protective earthing PE 2 26 26 26

DC input voltage 3 29 Vi+ 29 Vi+ 29 Vi+

DC input voltage 32 Vi– 32 Vi– 32 Vi–

AC input voltage 4 29 N 29 N 29 N

AC input voltage 32 L 32 L 32 L

1Not connected, if option P is fitted

2Leading pin

3AM, BM, CM, DM, EM, and FM models

4LM models

5Not connected, if option neither option D or V is fitted

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 18 of 26 www.power-one.com

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 16: Safety concept leading to an SELV output circuit

Conditions Front end DC-DC converter Result

Nominal Minimum required grade Maximum rated Minimum required Equip- Measures to achieve the Safety status

supply of insulation, to be pro- DC output voltage safety status of the ment specified safety status of of the DC-DC

voltage vided by the AC-DC front from the front end front end output the output circuit converter

end, including mains circuit output circuit

supplied battery charger

Mains Operational (i.e. there is 400 VDC 1 (The Primary circuit A – LM Double or reinforced SELV circuit

250 VAC no need for electrical rated voltage insulation, based on

isolation between the between any input 250 VAC and 400 VDC

mains supply voltage and pin and earth can (provided by the DC-DC

theDC-DC converter be up to 250 VAC converter) and earthed

input voltage) or 400 VDC.) case 2

1The front end output voltage should match the specified operating input voltage range of the DC-DC converter.

2The earth connection has to be provided by the installer according to the safety standard IEC/EN 60950.

The converters have been evaluated for:

• Class I equipment

• Building in

• Basic insulation between input and case and double or

reinforced insulation between input and output, based on

the input voltage of 250 VAC or 400 VDC

• Functional insulation between output(s) and case

• Functional insulation between the outputs

• Pollution degree 2 environment

• Overvoltage catagory II

• Altitude up to 2000 m

Table 17: Isolation

Characteristic Input to case Output(s) to Output(s) to Output to Unit

and output(s) case (standard) case (option H) output

Electric Factory test >1 s 2.8 1 1.4 2.8 0.3 kVDC

strength AC test voltage equivalent 2.0 1.0 2.0 0.2 kVAC

test to factory test

Insulation resistance at 500 VDC >300 >300 >300 >100 2 MΩ

Creapage distances ≥3.2 3 -- -- mm

1According to EN 50116 and IEC/EN 60950, subassemblies connecting input to output are pre-tested with 5.6 kVDC or 4 kVAC.

2Tested at 300 VDC

3Input to outputs: ≥6.4 mm

The converters are subject to manufacturing surveillance in

accordance with the above mentioned standards and with ISO

9001:2000.

Isolation

The electric strength test is performed in the factory as routine

test in accordance with EN 50116 and IEC/EN 60950, and

should not be repeated in the field. Power-One will not honor

any warranty claims resulting from electric strength field tests.

Fig. 17

Schematic safety concept

AC-DC

front

end

DC-DC

con-

verter

Mains Battery SELV

Earth connection

–

10018a

Max. 250 VAC or

400 VDC

Max. 250 VAC or

400 VDC

Fuse

The following table shows a possible inst allation 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.

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 19 of 26 www.power-one.com

-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, which require an improved inrush current

Description of Options

Table 17: Survey of options

Option Function of option Characteristic

-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 for CM, EM, LM models

P 1 Potentiometer for fine adjustment of output voltage Adjustment range ±5 % of Vo nom, excludes R input

F Input fuse built-in inside case Fuse not externally accessible

H Enhanced output to case electric strength test voltage See table Isolation

D 2Input and/or output undervoltage monitoring circuitry Safe data signal output (D0 – D9)

V 2 3 Input and/or output undervoltage monitoring circuitry AC FAIL signal according to VME specifications (V0, V2, V3)

1Models equipped with option P do not provide the R function; pins 14 and 17 are not connected.

2Option D excludes option V and vice versa

3Only available if main output voltage Vo1 = 5.1 V

Table 18: Configuration of option A and option P

Type of option AM – LM 1000 AM – LM 2000 AM – L M3000

Output 1 Output 1 Output 2 Output 1 Output 2 Output 3

Potentiometer 1 yes yes yes yes no no

Test sockets yes yes yes yes no no

1Models equipped with option P do not provide the R function; pins 14 and 17 are not connected.

Input filter

Control logic

Converter

FET

Rectifier

(LM models)

11018a

Fig. 18

Option E block diagram

limitation, an active electronic circuit as shown in fig. Option E

block diagram 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 Vti

+ Vhi

(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.

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 20 of 26 www.power-one.com

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

Table 19: Inrush current characteristics with option E

Characteristic CM EM, LM EM, LM Unit

at Vi = 110 VDC at Vi = 110 VDC at Vi = 372 VDC

typ max typ 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 m s

0010 20 30 40 t [ms]

[A]

inr

Normal operation:

FET fully conducting

= P

/(V

• η)

11019a

inr

CM at 110 VDC

EM, LM at 372 VDC

EM, LM at 110 VDC

by DC input voltages do not need to be derated within the full

specified input voltage range.

F Fuse Not Accessible

Standard M converter 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.

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, or FM models, or if a power

component inside fails. In such cases the defective converter

has to be returned to Power-One 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

+ 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 fixed value

specified by the customer.

Option D exists in various versions D0 – D9, as shown in table

20.

Table 20: Undervoltage monitor functions

Output type Monitoring Minimum adjustment range Typical hysteresis Vh [% of Vt]

JFET NPN ViVo1 of threshold level Vtfor Vt min – Vt max

Vti Vto Vhi Vho

D1 D5 no yes – 3.5 V – 48 V 1 – 2.3 – 1

D2 D6 yes no Vi min – Vi max 1– 3.0 – 0.5 –

D3 D7 yes yes Vi min – Vi max 1 0.95 – 0.98 Vo1 2 3.0 – 0.5 "0"

D4 D8 no yes –0.95 – 0.98 Vo1 2 –"0"

D0 D9 no yes – 3.5 V – 48 V 3 – 1.8 – 1

yes no Vi min – Vi max 3 4 – 2.2 – 0.4 –

yes yes Vi min – Vi max 3 4 0.95 – 0.98 Vo1 2 2.2 – 0.4 "0"

1Threshold level adjustable by potentiometer (not recommended for mobile applications)

2Fixed value between 95% and 98% of Vo1 (tracking)

3Fixed value, resistor-adjusted according to customer's specifications ±2% at 25 °C; individual type number is determined by Power-One

4Adjusted at Io nom

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 21 of 26 www.power-one.com

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 ID through the

JFET should not exceed 2.5 mA. The JFET is protected by a

0.5 W Zener diode of 8.2 V against external overvoltages.

NPN output (D5 – 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.

Vi, Vo1 status D output, VD

Vi or Vo1 < Vtlow, L, VD – 0.4 V at ID = 2.5 mA

Vi and Vo1 > Vt + Vhhigh, H, ID – 25 µA at VD = 5.25 V

Vi, Vo1 status D output, VD

Vi or Vo1 < Vthigh, H, ID – 25 µA at VD = 40 V

Vi and Vo1 > Vt + Vhlow, L, VD – 0.4 V at ID = 20 mA

Fig. 20

Options D0 – D4, JFET output

Fig. 21

Options D5 – D9, NPN output

Vo1+

Vo1–

Input

11006

Vo1+

Vo1–

Input

11007a

Threshold tolerances and hysteresis:

If Vi is monitored, the internal input voltage after the input filter

and rectifier (EM and LM types) is measured. Consequently,

this voltage differs from the volt age 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 ∆Vti

depends upon input voltage range (AM, BM, etc.), threshold

level Vt, temperature, and input current.

Fig. 22

Definition of Vti, ∆Vti, and Vhi (JFET output)

∆V

D low

D high

o =

o nom

= 0

o = 0

= P

o nom

11021a

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 22 of 26 www.power-one.com

Fig. 23

Relationship between Vi, Vo1, VD, ID, and Vo1/Vo nom

versus time.

1See Electrical Output Data for hold-up time.

2With output voltage monitoring the hold-up time th = 0

3The D signal remains high, if the D output is connected

to an external source.

4tlow min = 40 – 200 ms, typically 80 ms

0.95

Vi [V DC]

tlow min4tlow min4thigh min

th1

Vti + Vhi

Vti

Input voltage failure Switch-on cycle Input voltage sag Switch-on cycle and subsequent

input voltage failure

VD high

VD low

JFET

NPN

Vo1

Vo1 nom

VD high

VD low

tlow min4

th1

VD high

VD low

JFET

NPN

Vo1

VD high

VD low

tlow min4

Vto

Output voltage failure

ID high

ID low

ID high

ID low

33 33

Vo1 nom

Vto +Vho

Input voltage monitoring

Output voltage monitoring

11008a

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 th 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 th is provided by the internal input

capacitance. Consequently the working input voltage and the

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 23 of 26 www.power-one.com

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) < Ut. 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.

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.

Option V operates independently of the built-in input under-

voltage lockout circuit. A logic "low" signal is generated at pin 5

as soon as one of the monitored voltages drop s below the pre-

selected threshold level Vt. The return for this signal is Vo1–

(pin 23). The V output recovers, when the monitored voltage

Table 22: Undervoltage monitor functions

V output Monitoring Minimum adjustment range Typical hysteresis Uh [% of Vt]

(VME compatible) of threshold level Vtfor Vt min – Vt max

ViVo1 Vti Vto Vhi Vho

V2 yes no Vi min – Vi max 1– 3.0 – 0.5 -

V3 yes yes Vi min – Vi max 1 0.95 – 0.98 Vo1 2 3.0 – 0.5 "0"

V0 yes no Vi min – Vi max 3 4 - 2.2 – 0.4 -

yes yes Vi min – Vi max 3 4 0.95 – 0.98 Vo1 2 2.2 – 0.4 "0"

1 Threshold level adjustable by potentiometer (not recommended for mobile applications).

2 Fixed value between 95% and 98% of Vo1 (tracking), output undervoltage monitoring is not a requirement of VME standard.

3 Adjusted at Io nom.

4 Fixed value, resistor-adjusted (±2%) acc. to customer's specifications; individual type designation is determined by Power-One.

Table 21: 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

Ci 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

th0.34 0.69 1.92 1.73 6.69 2.92 8.18 ms

Fig. 24

Output configuration of options V0, V2, V3

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 capacit ance. If the input volt age is below

the required level, an external hold-up capacitor (Ci ext) should

be added.

Formula for threshold level for desired value of th:

2 • Po • (th + 0.3 ms) • 100

Vti = ––––––––––––––––––––– + Vi min2

Ci min • η

Formula for additional external input capacitor

2 • Po • (th + 0.3 ms) • 100

Ci ext = ––––––––––––––––––––– – Ci min

η • (Vti 2 – Vi min2)

where as:

Ci min = minimum internal input capacit ance [mF], according

to the table below

Ci ext = external input capacitance [mF]

Po= output power [W]

η= efficiency [%]

th= hold-up time [ms]

Vi min = minimum input voltage [V]

Vti = threshold level [V]

Notes: The threshold level Vti 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.

Vi, Vo1 status V output, VV

Vi or Vo1 < Vtlow, L, VV - 0.6 V at IV = 50 mA

Vi and Vo1 > Vt + V hhigh, H, IV - 25 µA at VV = 5.1 V

Vo1+

Vo1–

Input

11009a

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 24 of 26 www.power-one.com

5.1 V

4.875 V

Vi [VDC]

Vti + Vhi

Input voltage failure Switch-on cycle Input voltage sag Switch-on cycle and subsequent

input voltage failure

UV high

VV low

Vo1

VV high

VV low

Vti

Output voltage failure

VV high

VV low

Vti + Vhi

tlow min 2 tlow min 2

tlow min 2

VV high

VV low

tlow min 2

th 1

2.0 V

th 1

tlow min 2

5.1 V

4.875 V

Vo1

2.0 V

Input voltage monitoring

Output voltage monitoring

11010a

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 nom and TA = 25 °C. ∆Vt i depends upon the input

voltage range (AM, BM, ...), threshold level Vt i, temperature,

and input current.

Fig. 26

Relationship between Vi, Vo1, VV, IV, and Vo1/Vo nom

versus time.

Fig. 25

Definition of Vti, ∆Vti and Vhi

1VME request: minimum 4 ms

2tlow min = 40 – 200 ms, typically 80 ms

3VV level not defined at Vo1 < 2.0 V

4The V signal drops simultaneously with the output voltage, if

the pull-up resistor RP is connected to Vo1+. The V signal

remains high, if RP is connected to an external source.

∆V

V low

V high

o =

o nom

= 0

o = 0

= P

o nom

11023a

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 25 of 26 www.power-one.com

Accessories

A great variety of electrical and mechanical accessories are

available including:

– Various mating H11 connectors STV-H11-xxx including

screw, solder, fast-on, or press-fit terminals

– Connector retention clips RETENTIONCLIP(2X)

[HZZ01209]

– Code key system for connector coding CODIERKEIL(5X)

– Various front panels for 19" rack mounting, width 8 TE,

heigth 3U and 6U, Schroff or Intermas system.

– Flexible H11 PC B for mounting the converter onto a PCB

– Universal mounting bracket UMB-LHMQ [HZZ00610] for

chassis mounting or DIN-rail mounting in upright positi on.

–

DIN-rail mounting brackets DMB-MHQ (horizontal po s it ion)

– Mounting plate M (black finish) MOUNTINGPLATEM for

mounting the converter to a chassis or a wall, where only

frontal access is given

– Battery sensor [S-KSMH...] for using the converter as

battery charger. Different cell characteristics can be

selected.

For additional accessory product information, see the

accessory data sheets listed with each product series or

individual model l isting at www.power-one.com.

H11 female connector with

screw terminals and code

key system

Flexible H11 PCB

Mounting plate M (for wall-mounting),

connector with fast-on terminals

(STV-H11-F/CO), secured with

connector retention clips Universal mounting bracket

UMB-LHMQ for DIN-rail mounting.

Connector

retention clip

European

Projection

Different front

panels

Battery temperature sensor

65l

l: 2 m standard length

other cable lengths on request adhesive tape

09125

DIN-rail mounting brackets

DMB-MHQ

M Series Data Sheet

50 Watt DC-DC and AC-DC Converters

BCD20018 Rev AB Page 26 of 26 www.power-one.com

Rolf Baldauf Johann Milavec

Vice President, Engineering Director Projects and IP

EC Declaration of Conformity

Power-One AG

Ackerstrasse 56, CH-8610 Uster

declare under our sole responsibility that all M and H Series AC-DC and DC-DC

converters carrying the CE-mark are in conformity with the provisions of the Low

Voltage Directive (LVD) 73/23/EEC of the European Communities.

Conformity with the directive is presumed by conformity with the following har-

monized standards:

·EN 61204:1995 (= IEC 61204:1993, modified)

Low-voltage power supply devices, DC output - Performance characteris-

tics and safety requirements

·IEC 60950-1:2005 (1st Edition) and/or EN60950-1:2003

Safety of information technology equipment.

The installation instructions given in the corresponding data sheet describe correct

installation leading to the presumption of conformity of the end product with the

L VD. All M and H Series AC-DC and DC-DC converters are components, intended

exclusively for inclusion within other equipment by an industrial assembly operation

or by professional installers. They must not be operated as st and alone products.

Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC

(EMC Directive) needs not to be declared. Nevertheless, guidance is provided in

most product application notes on how conformity of the end product with the

indicated EMC standards under the responsibility of the installer can be achieved,

from which conformity with the EMC directive can be presumed.

Uster, 24 August 2006 Power-One AG