FM2540-7PAH_技术文档

Cassette Style

DC-DC Converters

M Series

50 Watt DC-DC (AC-DC) Converters

M Series

Wide input voltage from 8...373 V DC

1, 2 or 3 isolated outputs up to 48 V DC

4 kV AC I/O electric strength test voltage

• Extremely wide input voltage range suitable for

battery (and AC) operation

• Efficient input filter and built-in surge and transient

suppression circuitry

• Outputs individually isolated and controlled

• Outputs fully protected against overload

Safety according to IEC/EN 60950

LGA

111

4.37"

3U

168

39

Summary

6.6"

1.54"

8TE

The M series of DC-DC (AC-DC) converters represents a

broad and flexible range of power supplies for use in ad-

vanced 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 tran-

sients occuring at the source lines. An input over- and

undervoltage lock-out circuitry disables the outputs if the in-

put voltage is outside the specified range. Certain types in-

clude an inrush current limitation preventing circuit break-

ers and fuses from being damaged at switch-on.

agencies LGA (Germany) and UL (USA). The UL Mark for

Cana-da has been officially recognized be regulatory au-

thorities in provinces across Canada.

The case design allows operation at nominal load up to

71°C in a free air ambient temperature. If forced cooling is

provided, the ambient temperature may exceed 71°C but

the case temperature should remain below 95°C under all

conditions.

All outputs are open- and short-circuit proof and are pro-

tected against overvoltages by means of built-in suppressor

diodes. The outputs can be inhibited by a logic signal ap-

plied to the connector pin 2 (i). If the inhibit function is not

used pin 2 should be connected to pin 23 to enable the out-

puts.

A temperature sensor generates an inhibit signal which

disables the outputs if the case temperature T_Cexceeds the

limit. The outputs are automatically re-enabled when the

temperature drops below the limit.

LED indicators display the status of the converter and allow

visual monitoring of the system at any time.

Various options are available to adapt the converters to in-

dividual applications.

Full input to output, input to case, output to case and output

to output isolation is provided. The modules are designed

and built according to the international safety standard

IEC/EN 60950 and have been approved by the safety

The modules may either be plugged into 19 inch rack sys-

tems according to DIN 41494, or be chassis mounted.

Table of Contents

Page

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

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

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

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

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

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

Summary.......................................................................... 1

Type Survey and Key Data .............................................. 2

Type Key .......................................................................... 3

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

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

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

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

Edition 01/01.2001

1/25

Cassette Style

DC-DC Converters

M Series

Type Survey and Key Data

Non standard input/output configurations or special custom adaptions are available on request. See also: Commercial In-

formation: Inquiry Form for Customized Power Supply.

The type survey tables provide an overview of the basic input and output configurations. More than 1000 different types

have been manufactured providing different output configurations and customized specialities. Please consult Power-

One's field sales engineers for specific requirements. The best technical solution will carefully be considered and a detailed

proposal submitted.

Table 1a: Class I equipment

Output 1

Output 2

Output 3

Input voltage range and efficiency ¹

Options

U_{o nom}I_{o nom}

[V DC] [A]

U_{o nom}I_{o nom}

[V DC] [A]

U_{o nom}I_{o nom}

[V DC] [A]

U_{i min}...U_{i max}

8...35 V DC

h_min

[%]

U_{i min}...U_{i max}

14...70 V DC

h_min

[%]

U_{i min}...U_{i max}

20...100 V DC

h_min

[%]

5.1 8.0

12.0 4.0

15.0 3.4

24.0 2.0

48.0 1.0

-

AM 1001-7R

AM 1301-7R

AM 1501-7R

AM 1601-7R

AM 1901-7R

72

79

81

BM 1001-7R

BM 1301-7R

BM 1501-7R

BM 1601-7R

BM 1901-7R

74

80

81

83

FM 1001-7R

FM 1301-7R

FM 1501-7R

FM 1601-7R

FM 1901-7R

74

80

81

82

83

–9

P

D0...D9

V0,V2,V3

A

12.0 2.0

15.0 1.7

12.0 2.0

15.0 1.7

-

AM 2320-7

AM 2540-7

77

78

BM 2320-7

BM 2540-7

79

80

FM 2320-7

FM 2540-7

80

79

H

F

5.1 5.0

12.0 0.7

15.0 0.6

12.0 0.7

15.0 0.6

AM 3020-7

AM 3040-7

75

BM 3020-7

BM 3040-7

76

FM 3020-7

FM 3040-7

76

Table 1b: Class I equipment

Output 1

Output 2

Output 3

Input voltage range and efficiency ¹

Options

U_{o nom}I_{o nom}

[V DC] [A]

U_{o nom}I_{o nom}

[V DC] [A]

U_{o nom}I_{o nom}

[V DC] [A]

U_{i min}...U_{i max}

28…140 V DC

h_min

[%]

U_{i min}...U_{i max}

44…220 V DC

h_min

[%]

U_{i min}...U_{i max}

88...372 V DC

(85...264 V AC)

h_min

[%]

5.1 8.0

12.0 4.0

15.0 3.4

24.0 2.0

48.0 1.0

-

CM 1001-7R

CM 1301-7R

CM 1501-7R

CM 1601-7R

CM 1901-7R

74

80

82

DM 1001-7R

DM 1301-7R

DM 1501-7R

DM 1601-7R

DM 1901-7R

74

81

82

83

LM 1001-7R

LM 1301-7R

LM 1501-7R

LM 1601-7R

LM 1901-7R

73

79

78

81

–9

E

P

D0...D9

V0,V2,V3

12.0 2.0

15.0 1.7

12.0 2.0

15.0 1.7

-

CM 2320-7

CM 2540-7

79

80

DM 2320-7

DM 2540-7

80

LM 2320-7

LM 2540-7

77

78

A

H

5.1 5.0

12.0 0.7

15.0 0.6

12.0 0.7

15.0 0.6

CM 3020-7

CM 3040-7

76

DM 3020-7

DM 3040-7

77

76

LM 3020-7

LM 3040-7

73

71

F

Table 1c: Class II equipment (double insulation)

Output 1

Output 2

Output 3

Input voltage range and efficiency ¹

Options

U_{o nom}I_{o nom}

[V DC] [A]

U_{o nom}I_{o nom}

[V DC] [A]

U_{o nom}I_{o nom}

[V DC] [A]

U_{i min}...U_{i max}

28...140 V DC

h_min

[%]

U_{i min}...U_{i max}

44...220 V DC

h_min

[%]

U_{i min}...U_{i max}

88...372 V DC

(85...264 V AC)

h_min

[%]

5.1 8.0

12.0 4.0

15.0 3.4

24.0 2.0

48.0 1.0

-

CMZ 1001-7R

CMZ 1301-7R

CMZ 1501-7R

CMZ 1601-7R

CMZ 1901-7R

74

80

82

DMZ 1001-7R

DMZ 1301-7R

DMZ 1501-7R

DMZ 1601-7R

DMZ 1901-7R

74

81

82

83

LMZ 1001-7R

LMZ 1301-7R

LMZ 1501-7R

LMZ 1601-7R

LMZ 1901-7R

73

79

78

81

–9

E

P

D0…D9

V0,V2,V3

A

H

F

12.0 2.0

15.0 1.7

12.0 2.0

15.0 1.7

-

CMZ 2320-7

CMZ 2540-7

79

80

DMZ 2320-7

DMZ 2540-7

80

LMZ 2320-7

LMZ 2540-7

77

78

5.1 5.0

12.0 0.7

15.0 0.6

12.0 0.7

15.0 0.6

CMZ 3020-7

CMZ 3040-7

76

DMZ 3020-7

DMZ 3040-7

77

76

LMZ 3020-7

LMZ 3040-7

73

71

¹Efficiency at U_{i nom}and I_{o nom}

.

Notes: EM types with an input voltage range of 67...385 V DC are available upon request.

LM types may be operated in AC mode within a frequency range of 47...440 Hz and LMZ types within a frequency range of

47...65 Hz. See: AC-DC converters ≤100 W: M-Series.

Edition 01/01.2001

2/25

Cassette Style

DC-DC Converters

M Series

Type Key

C M Z 2 5 40 -7 E R P D V A H F

Input voltage range U_i:

8...35 V DC ...............A

14...70 V DC ...............B

20...100 V DC ............... F

28...140 V DC .............. C

44...220 V DC .............. D

67...385 V DC ...............E¹

85...264 V AC, 88...372 V DC .............. L

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

Class II Equipment ........................................................... Z

Number of outputs....................................................... 1...3

Output 1, U_{o1 nom}

:

5.1 V .......... 0...2

12 V ............... 3

15 V .......... 4...5

24 V ............... 6

other voltages .......... 7...8

48 V ............... 9

other specs for single output modules ...... 01...99

Output 2 and 3, U_{o2 nom}, U_{o3 nom}

:

5.1 V ...... 01...19

12 V ...... 20...39

15 V ...... 40...59

24 V ...... 60...69

other voltages for multiple output modules ...... 70...99

Ambient temperature range T_A:

–25…71°C .............. -7

–40…71°C .............. -9

customer specific ........-0...-8

Auxiliary functions and options:

Inrush current limitation (C/E/LM and C/LMZ).................E

Output voltage control input (single output modules)...... R²

Potentiometers for fine adjustment of output voltages ..... P²

Save data signal (D0...D9, to be specified)..................... D³

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

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

Increased electric strength test voltage (o/c) .................. H

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

¹EM types available upon request

²Feature R excludes option P and vice versa

³Option D excludes option V and vice versa

Example: CM 2540-7PD3A: DC-DC converter, input voltage range 28...140 V, providing output 1 with 15 V/1.7 A and

output 2 with 15 V/1.7 A; equipped with potentiometers, undervoltage monitor and test sockets.

Note: All units feature input and output filters and the auxiliary function inhibit which are not shown in the type designation.

Edition 01/01.2001

3/25

Cassette Style

DC-DC Converters

M Series

Functional Description

mary switching transistor. This signal is fed back via a cou-

pling transformer.

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

rectifier ³and an inrush current limiter ⁴to the input capaci-

tor. This capacitor sources a single transistor forward con-

verter. 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 control logic senses the main output

voltage U_o1and generates, with respect to the maximum

admissible output currents, the control signal for the pri-

The auxiliary outputs U_o2and U_o3are individually regulated

by means of secondary switching transistors. Each aux-

iliary output's current is sensed using a current transformer.

If one of the outputs is driven into current limit, the other out-

puts will reduce their output voltages as well because all

output currents are controlled by the same main control cir-

cuit.

P

03009

2

i

5

D/V

4

Main control circuit

14

17

R

G

4

20

23

C_Y

Output 1

filter

29

Vi+

1

2

3

C_MKT

14

17

Control

circuit

Output 2

filter

C_MKT

8

32

26

Vi–

Output 3

filter

Control

circuit

11

C_Y

Fig. 1a

Block diagram, class I equipment

P

03010

C_Y

2

i

5

D/V

4

Main control circuit

14

17

R

G

20

23

Output 1

filter

29

Vi+

1

2

3

C_MKT

14

17

Control

circuit

Output 2

filter

C_MKT

8

32

Vi–

Output 3

filter

Control

circuit

11

Fig. 1b

Block diagram, class II equipment (double insulation)

¹Transient suppressor diode in AM, BM, CM, FM and CMZ types.

²Bridge rectifier in LM and LMZ, series diode in EM types.

³Inrush current limiter (NTC) in CM, DM, EM, LM and CMZ, DMZ, LMZ types (option E: refer to the description of option E).

⁴Single output modules AM...LM 1000 and CMZ...LMZ 1000 with feature R.

For output configuration please refer to table: Pin allocation.

Edition 01/01.2001

4/25

Cassette Style

DC-DC Converters

M Series

Electrical Input Data

General conditions:

– T_A= 25°C, unless T_Cis specified.

– Connector pins 2 and 23 interconnected, with option P: U_o= U_{o nom}, R input not connected.

Table 2a: Input data

Input

AM

BM

FM

CM/CMZ

Characteristics

Conditions

min typ max min typ max min typ max min typ max

Unit

U_i

Operating input voltage I_o= 0…I_{o nom}

T_{C min}…T_{C max}

8

35

14

70

20

100

28

140

V DC

U_{i nom}Nominal input voltage

15

30

50

60

2

I_i

Input current

U_{i nom}, I_{o nom}

4.0

2.0

1.2

1.0

A

P_{i 0}

No-load input power:

Single output

U_{i nom}

I_o1,2,3= 0

1

7

6

1.5

9

1

7

6

1.5

9

1

7

6

1.5

9

1

7

6

1.5

9

W

Double output

Triple output

P_{i inh}Idle input power

inhibit mode

2

6

I_{inr p}Peak inrush current

U_i= U_{i max}

R_S= 0 Ω ³

T_C= 25°C

400

500

400

170 ⁴

A

t_{inr r}

t_{inr h}

R_i

Rise time

60

50

40

60

µs

Time to half-value

Input resistance

Input capacitance

170

100

280

T_C= 25°C

87.5

2600

0

140

250

824 ⁴

370

0

mΩ

µF

C_i

4000 670

1100 370

600

120

600

160

U _{i abs}Input voltage limits

without any damage

40

0

80

0

V DC

Table 2b: Input data

Input

DM/DMZ

EM

typ

-

LM/LMZ

Characteristics

Conditions

min

44

typ

-

max

min

max

385

min

typ

max

Unit

V AC ¹

V DC

U_i

Operating input voltage I_o= 0…I_{o nom}

T_{C min}…T_{C max}

85

88

264

372

220

67

U_{i nom}Nominal input voltage

I_iInput current

110

220

310

2

U_{i nom}, I_{o nom}

0.55

0.275

0.20

A

P_{i 0}No-load input power:

Single output

U_{i nom}

I_o1,2,3= 0

1

7

6

1.5

9

1

7

6

1.5

9

1

7

6

1.5

9

W

Double output

Triple output

P_{i inh}Idle input power

inhibit mode

2

6

I_{inr p}Peak inrush current

U_i= U_{i max}

R_S= 0 Ω ³

T_C= 25°C

110 ⁴

160 ⁴

60 ⁴

A

t_{inr r}Rise time

40

300

900

µs

t_{inr h}Time to half-value

250

240

R_i

C_i

Input resistance

T_C= 25°C

2000 ⁴

2400 ⁴

140

6200 ⁴

140

–400

0

mΩ

µF

Input capacitance

140

0

270

400

–

270

400

284

U_{i abs}Input voltage limits

without any damage

400 ⁵–400

V DC

V AC

–

¹In AC powered mode: LM types: 47...440 Hz; LMZ types: 47...65 Hz. See: AC-DC Converters ≤100 W: M-Series.

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

³R_S= source resistance.

⁴Value for initial switch-on cycle.

⁵1 s max., duty cycle 1% max.

⁶I_{inr p}= U_i/(R_s+ R_i). See also: Inrush Current.

Edition 01/01.2001

5/25

Cassette Style

DC-DC Converters

M Series

Input Fuse

A fuse holder containing a slow-blow type fuse (Dimension:

5 × 20 mm) is mounted in the converter's back plate. The

fuse protects the module against severe defects. It may not

fully protect the module at input voltages exceeding

200 V DC. In applications where the converters operate at

DC source voltages above 200 V DC, an external fuse or a

circuit breaker at system level should be installed.

Table 3: Fuse types (slow-blow)

Series

AM 1000...3000

Schurter type

SPT 10 A 250 V

Part number

0001.2514

0001.2513

0001.2511

0001.2509

0001.2508

BM 1000...3000

FM 1000...3000

SPT 8 A

SPT 5 A

250 V

CM/CMZ 1000...3000

SPT 3.15 A 250 V

SPT 2.5 A 250 V

For applications where the fuse should be inaccessible: see

Option F.

DM/DMZ 1000...3000

EM 1000...3000

LM/LMZ 1000...3000

Input Under-/Overvoltage Lock-out

If the input voltage remains below 0.8 U_{i min}or exceeds

1.1U_{i max}(approx. values), an internally generated inhibit

signal disables the output(s). When checking this function

the absolute maximum input voltage rating U_{i abs}must be

carefully considered (see table: Input data). Between U_{i min}

and the undervoltage lock-out level the output voltage may

be below the value defined in table: Output data (see: Tech-

nical Information: Measuring and Testing).

Reverse Polarity

Reverse polarity at the input of AM, BM, CM, DM, FM and

CMZ, DMZ types will cause the fuse to blow. In EM, LM and

LMZ types a series diode will protect the module. A series

diode is not incorporated in AM, BM, CM, DM, FM and

CMZ, DMZ types to avoid unwanted power loss.

Inrush Current

I_i[A]

The CM, DM, EM, LM and CMZ, DMZ, LMZ (excluding FM)

modules incorporate an NTC resistor in the input circuitry

which (during the initial switch-on cycle) limits the peak in-

rush current to avoid damage to connectors and switching

devices. Subsequent switch-on cycles within a short inter-

val will cause an increase of the peak inrush current due to

the warming up of the NTC resistor. Refer also to: Option E

description.

04014

10.00

04015

AM

I_i[A]

A…EM

LM

BM

400

350

BM

1.00

FM

CM/CMZ

AM

FM

300

50; 250

40; 200

30; 150

20; 100

10; 50

DM/DMZ

EM

LM/LMZ

U_{i DC}

LM/LMZ

________

0.10

U_{i min DC}

1

2

3

4

5

6

EM

DM/DMZ

CM/CMZ

Fig. 2

Typical input current versus relative input voltage at

nominal output load

t [ms]

0

0.8

2.0

1.6 A…EM

0

0.2 0.4 0.6

0.5 1.0 1.5

1.0 1.2 1.4

2.5 3.0 3.5

LM

4.0

Fig. 3

Typical inrush current at initial switch-on cycle and at

U_{i max}[DC] versus time

Edition 01/01.2001

6/25

Cassette Style

DC-DC Converters

M Series

Electrical Output Data

General conditions

– T_A= 25°C, unless T_Cis specified.

– Connector pins 2 and 23 interconnected, U_o= U_{o nom}(option P), R input not connected.

Table 4: Output data

Output

U_{o nom}

5.1 V

min typ max min typ max min typ max min typ max min typ max Unit

5.07 5.13 11.93 12.07 14.91 15.09 23.86 24.14 47.72 48.28

12 V

15 V

24 V

48 V

Characteristics

Conditions

1

U_o

Output voltage

U_{i nom}, I_{o nom}

V

U_{o p}Output overvoltage

protection ⁶

7.5

21

25

41

85

I_{o nom}Output current

U_{i min}...U_{i max}

T_{C min}...T_{C max}

see Type Survey and Key Data

see Fig. Typical output voltage U_o1versus output currents I_o

I_{o L}

Output current

limitation response

1

u_o

Output Switch. freq. U_{i nom}, I_{o nom}

15 30

60 120

25 50

40 80

35 70

40 80

50 100 mV_pp

-

voltage

noise

IEC/EN 61204 ⁵

BW = 20 MHz

Total

DU_{o U}Static line regulation U_{i min}...U_{i nom}

±10 ±30

±12 ±50

±15 ±60

±15 ±60 mV

U_{i nom}...U_{i max}

1

I_{o nom}

DU_{o I}Static load regulation U_{i nom}

6

0

25

13 50

17 60

30 80

60 150

I_{o nom}...0 ²

DU_{o I c}Static cross load

U_{i nom}

I_{o nom}...0 ³

±15

0

±20

0

±30

0

±130

1

±40

-

regulation ⁴

u_{o d}

t_d

Dynamic Voltage

load

U_{i nom}

±220

0.6

±110

0.6

±150

0.5

±150

deviation I_{o nom}↔ ¹/

I_{o nom}

3

2

3

regulation

IEC/EN 61204

Recovery

time

2

ms

mV

ms

u_{o d c}Dynamic Voltage

U_{i nom}

+10

–100

+10

–75

+10

–140

+20

–200

-

cross load deviation I_{o nom}↔ ¹/

3

I_{o nom}

regulation

4

IEC/EN 61204

t_{d c}

Recovery

time

0.05

0.5

0.2

0.3

0.5

0.7

1

2

-

a_Uo

Temperature

coefficient

DU_o/DT_C

U_{i min}...U_{i max}

0...I_{o nom}

±0.02

±1.0

±0.02

±2.4

±0.02

±3.0

±0.02

±4.8

±0.02

±9.6

%/K

mV/K

¹With multiple output modules, the same condition for each output applies.

²Condition for specified output. With multiple output modules, other output(s) loaded with constant current I_{o nom}. See fig.: Dynamic

load regulation.

³Condition for non-specified output, individually tested, other output(s) loaded with constant current I_{o nom}. See fig.: Dynamic load regu-

lation.

⁴Multiple output modules.

⁵See: Technical Information: Measuring and Testing.

⁶By suppressor diode.

Edition 01/01.2001

7/25

Cassette Style

DC-DC Converters

M Series

05022

U_o1

U_{o1 nom}

I_{o nom}

I_oL1

I_oL2,I_oL3

1.0

.95

05010

U_o

u_od

DU_{o I}

I_o1

u_od

I_o2,I_o3

t_d

0.5

t

I /I

o

o nom

1

I_o

I_{o nom}

0

≥10 µs

0.5

1.0

1.2

Fig. 4

Fig. 5

Typical output voltage U_o1versus output currents I_o.

Dynamic load regulation u_{o d}versus load change.

Thermal Considerations

Thermal Protection

If a converter is located in free, quasi-stationary air (con-

vection cooling) at the indicated maximum ambient tem-

perature T_{A 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 T_C(see: Mechanical Data) will approach the

indicated value T_{C max}after the warm-up phase. However,

the relationship between T_Aand T_Cdepends 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 compo-

A temperature sensor generates an internal inhibit signal

which disables the outputs if the case temperature exceeds

T_{C max}. The outputs are automatically re-enabled if the tem-

perature drops below this limit.

Output Protection

Each output is protected against overvoltages which could

occur due to a failure of the internal control circuit. Voltage

suppressor diodes (which under worst case condition may

become a short circuit) provide the required protection. The

suppressor diodes are not designed to withstand externally

applied overvoltages. Overload at any of the outputs will

cause a shut-down of all outputs. A red LED indicates the

overload condition of the respective output.

nents and surfaces. T_{A max}is therefore, contrary to T_{C max}

,

an indicative value only.

Caution: The installer must ensure that under all operat-

ing conditions T_Cremains within the limits stated in the

table: Temperature specifications.

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 module is forced to supply a minimum cur-

rent of 0.1 A to enable correct operation of its own auxiliary

outputs.

Notes: Sufficient forced cooling or an additional heat sink

allows T_Ato be higher than 71°C (e.g. 85°C) if T_{C max}is not

exceeded.

For -7 or -9 units at an ambient temperature T_Aof 85°C with

only convection cooling, the maximum permissible current

for each output is approx. 50% of its nominal value as per

figure.

In parallel operation, one or more of the main outputs may

operate continuously in current limitation which will cause

an increase in case temperature. Consequently, a reduction

of the max. ambient temperature by 10 K is recommended.

I_o/I_{o nom}

Main or auxiliary outputs can be connected in series with

any other output of the same or another module. 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 possi-

ble.

Forced cooling

1.0

0.9

0.8

0.7

Convection cooling

0.6

If output terminals are connected together in order to estab-

lish multi-voltage configurations, e.g. +5.1 V, ±12 V etc. the

common ground connecting point should be as close as

possible to the connector of the converter to avoid exces-

sive output ripple voltages.

T_{C max}

0.5

0.4

0.3

0.2

0.1

Auxiliary outputs should never be connected in parallel!

0

T [°C]

A

T

50

60

70

80

90

100

A min

Fig. 6

Output current derating versus temperature for -7 and -9

units.

Edition 01/01.2001

8/25

Cassette Style

DC-DC Converters

M Series

Output Current Allocation for Special Types

Output currents differing from those given for standard

types (as per: Type Survey and Key Data) can be provided.

A maximum output power of 50 W should be considered, if

an ambient temperature range of –25...71°C is required.

The maximum permissible output currents are indicated in

the table below. If (upon customer's request) output volta-

ges 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. Custom-

ized configurations always need to be checked by a feasibil-

ity study first. Please ask Power-One's sales engineers for

a proposal appropriate to your specific needs. See also:

Commercial Information: Inquiry Form for Customized

Power Supply.

Table 5: Current allocation with special types

Output voltage

all types

U_{o1/2/3 nom}[V]

Output 1

all types

I_{o1 max}[A]

Output 2

A...LM 2000

I_{o2 max}[A]

Output 2

A...LM 3000

I_{o2 max}[A]

Output 3

A...LM 3000

I_{o3 max}[A]

Temperature

T_A[°C]

T_C[°C]

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)

1.5

1.2

1.0

0.5

–25...71

–25...60

–25...50

–25...95

1.2

0.7

2

5.1

12

15

24

10.0

5.0

4.0

4.5

2.5

2.0

1.3

2.1 (2.8 ¹)

1.7

1.8

1.5

1.3

0.7

–25...90

–25...85

1.5

0.9

2.5

5.1

12

15

24

11.0

6.0

4.6

5.0

3.0

2.3

1.5

2.4 (3.0 ¹)

2.0

1.7

1.5

0.8

1.7

1.0

3.0

2

¹Special high current components required. U_{i min}has to be increased.

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.: Output

response as a function of input voltage or inhibit control) be-

fore the output voltage falls below 0.95 U_{o nom}. To achieve

the hold-up times indicated in fig.: Typical hold-up time t_h

versus relative input voltage at I_{o nom}, AM, BM, CM, DM, FM

and CMZ, DMZ modules require an external series diode in

the input path. This is necessary to prevent the discharge of

the input capacitor through the source impedance or other

circuits connected to the same source. EM, LM and LMZ

modules have a built-in series diode. In AM, BM, CM, DM,

FM and CMZ, DMZ modules, no series diode is built-in,

since it would generate up to 10 W of additional power loss

inside the converter. Consequently the maximum opera-

tional ambient temperature would have to be reduced ac-

cordingly.

Note: For additional hold-up time see also Description of

Options: V ACFAIL Signal (VME).

The behavior of the outputs is similar with either the input

voltage applied or the inhibit switched low.

An output voltage overshoot will not occur when the module

is turned on or off.

t_h[ms]

05024

1000.00

LM/LMZ

EM

100.00

10.00

1.00

CM/DM

CMZ/DMZ

AM/BM/FM

05025

Output

U_{o nom}

0.95U_{o nom}

0.1

0

t

t_r

t_f

t_h

U_i

1

0

t

Inhibit

1

U_{i DC}

______

0

0.10

U_{i min DC}

1

2

3

4

5

6

Fig. 7

Output response as a function of input voltage (on/off

switching) or inhibit control

Fig. 8

Typical hold-up time t_hversus relative input voltage at I_{o nom}

Edition 01/01.2001

9/25

Cassette Style

DC-DC Converters

M Series

Table 6: Output response time t_rand t_f. Values not applicable for modules equipped with option E.

Type of converter

t_rat P_o= 0 and t_fat P_o= P_{o nom}t_rand t_fat P_o= ³/₄P_{o nom}

t_rat P_o= P_{o nom}

Unit

ms

typ

max

typ

max

typ

max

A...LM 1001-7R and C/D/LMZ 1001-7R

A...LM 1301-7R and C/D/LMZ 1301-7R

A...LM 1501-7R and C/D/LMZ 1501-7R

A...LM 1601-7R and C/D/LMZ 1601-7R

A...LM 1901-7R and C/D/LMZ 1901-7R

5

10

5

10

20

10

5

15

10

30

20

10

20

40

30

60

15

65

30

130

25

100

50

200

40

80

165

330

A...LM 2320-7 and C/D/LMZ 2320-7

A...LM 2540-7 and C/D/LMZ 2540-7

20

15

40

30

20

60

40

50

35

100

70

A...LM 3020-7 and C/D/LMZ 3020-7

A...LM 3040-7 and C/D/LMZ 3040-7

55

40

110

80

85

60

170

120

145

100

290

200

Conditions:

R input not used. For multiple output modules the figures indicated in the table above relate to the output which reacts

slowest. All outputs are resistively loaded. Variation of the input voltage within U_{i min}...U_{i max}does not influence the values

considerably.

Auxiliary Functions

i Inhibit for Remote On and Off

I_inh[mA]

Note: With open i input: Output is disabled (U_o= off).

U_inh= 2.4 V

U_inh= 0.8 V

The outputs of the module 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 units, this feature can be used, for ex-

ample, 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).

For output response refer to: Hold-up Time and Output Re-

2.0

1.6

1.2

0.8

0.4

U_o= on

U_o= off

0

–0.4

–0.8

sponse.

06031

Vo+

i

Vi+

I_inh

U_inh

U_inh[V]

–50

Fig. 10

Typical inhibit current I_inhversus inhibit voltage U_inh

–30

–10

0

10

30

50

Vo–

Vi–

Fig. 9

Definition of U_inhand I_inh

.

Table 7: Inhibit data

Characteristics

Conditions

min

–50

2.4

typ

max

0.8

Unit

U_inhInhibit input voltage to keep

output voltage

U_o= on

U_o= off

U_{i min}...U_{i max}

T_{C min}...T_{C max}

V DC

50

I _inh

Inhibit current

U_inh= 0

–60

–100

–220

µA

Edition 01/01.2001

10/25

Cassette Style

DC-DC Converters

M Series

R-Control for Output Voltage Adjustment

Vo1+

Notes: With open R input, U_o≈ U_{o nom}. R excludes option P.

06088

U_ref

R₂

R₁

As a standard feature, single output modules offer an

adjustable output voltage identified by letter R in the type

designation.

4000 Ω

+

–

R

G

The output voltage U_o1can either be adjusted with an exter-

nal voltage (U_ext) or with an external resistor (R₁or R₂). The

adjustment range is approximative 0…110% of U_{o nom}. For

output voltages U_o> U_{o nom}, the minimum input voltage ac-

cording to: Electrical Input Data increases proportionally to

Fig. 12

Voltage adjustment with external resistor R₁or R₂

U_o/U_{o nom}

.

b) U_o≈ 0...100% U_{o nom}, using R₁between R (14) and

Vo1+

06087

G (17):

U_ref

4000 Ω

R₁

U_o≈ U_{o nom}• –––––––––––

R₁+ 4000 Ω

4000 Ω • U_o

R₁≈ ––––––––––

U_{o nom}- U_o

R

+

–

+

U_ext

c) U_o≈ U_{o nom}...U_{o max}, using R₂between R (14) and

G

Vo1+ (20):

U_{o max}= U_{o nom}+ 10%

Fig. 11

Voltage adjustment with external voltage U_ext

4000 Ω • U_o• (U_{o nom}– 2.5 V)

R₂≈ ––––––––––––––––––––––––

2.5 V • (U_o– U_{o nom}

)

a) U_o≈ 0...110% U_{o nom}, using U_extbetween R (14) and

G (17):

U_{o nom}• 2.5 V • R₂

U_o≈ ––––––––––––––––––––––––––––––––

2.5 V • (R₂+ 4000 Ω) – U_{o nom}• 4000 Ω

U_o

_ext≈ 2.5 V • –––––

U_{o nom}

U_ext

U_o≈ U_{o nom}• –––––

2.5 V

U

Caution: To prevent damage, R₂should never be less

than 47 kΩ.

Caution: To prevent damage, U_extshould not exceed

Note: R inputs of n units with paralleled outputs may be

paralleled, too, but if only one external resistor is to be

used, its value should be R₁/n, or R₂/n respectively.

8 V, nor be negative.

Table 8a: R₁for U_o< U_{o nom}(conditions: U_{i nom}, I_{o nom}, rounded up to resistor values E 96, R₂= ∞)

U_{o nom}= 5.1 V

U_{o nom}= 12 V

U_{o nom}= 15 V

U_{o nom}= 24 V

U_{o nom}= 48 V

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

U_o[V]

R₁[kΩ]

U_o[V]

R₁[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

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

11.0

0.806

1.33

2.0

2.87

4.02

5.62

8.06

12.1

20.0

44.2

2.0

4.0

6.0

8.0

9.0

10.0

11.0

12.0

13.0

14.0

0.619

1.47

2.67

4.53

6.04

8.06

11.0

16.2

26.1

56.2

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

22.0

0.806

1.33

2.0

2.87

4.02

5.62

8.06

12.1

20.0

44.2

8.0

12.0

16.0

20.0

24.0

28.0

32.0

36.0

40.0

44.0

0.806

1.33

2.0

2.87

4.02

5.62

8.06

12.1

20.0

44.2

200.0

Table 8b: R₂for U_o> U_{o nom}(conditions: U_{i nom}, I_{o nom}, rounded up to resistor values E 96, R₁= ∞)

U_{o nom}= 5.1 V

U_o[V] R₂[kΩ]

U_{o nom}= 12 V

U_{o nom}= 15 V

U_{o nom}= 24 V

U_{o nom}= 48 V

U_o[V]

R₂[kΩ]

U_o[V]

R₂[kΩ]

U_o[V]

R₂[kΩ]

U_o[V]

R₂[kΩ]

5.15

5.20

5.25

5.30

5.35

5.40

5.45

5.50

464

215

147

110

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

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

90.9

78.7

68.1

61.9

402

383

845

806

Edition 01/01.2001

11/25

Cassette Style

DC-DC Converters

M Series

Display Status of LEDs

06002

U_o1> 0.95...0.98U_{o1 adj}

Fig. 13

OK

i

I_{o L}

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

Conditions: I_o≤ I_{o nom}, T_C≤ T_{C max}, U_inh≤ 0.8 V

U_{i uv}= undervoltage lock-out, U_{i ov}= overvoltage lock-out

U_i

U_{i uv}U_{i min}

U_{i max}U_{i ov}U_{i abs}

U_o1> 0.95...0.98U_{o1 adj}

U_o1< 0.95...0.98U_{o1 adj}

OK

I_{o L}

LED "OK" and "I_{o L}"status versus output current

Conditions: U_{i min}...U_{i max}, T_C≤ T_{C max}, U_inh≤ 0.8 V

I_o

I_{o nom}

I_oL

i

LED "i"versus case temperature

T_C

Conditions: U_{i min}...U_{i max}, I_o≤ I_{o nom}, U_inh≤ 0.8 V

T_{C max}

U_{inh threshold}

T_{PTC threshold}

LED "i"versus U_inh

U_{i inh}

Conditions: U_{i min}...U_{i max}, I_o≤ I_{o nom}, T_C≤ T_{C max}

+0.8 V

+2.4 V

+50 V

-50 V

LED off

LED Status undefined

LED on

Edition 01/01.2001

12/25

Cassette Style

DC-DC Converters

M Series

Electromagnetic Compatibility (EMC)

which typically occur in most installations, but especially in

battery driven mobile applications. The M series has been

successfully tested to the following specifications:

A suppressor diode or a metal oxide VDR (depending upon

the type) together with an input fuse and an input filter form

an effective protection against high input transient voltages

Electromagnetic Immunity

Table 9: Immunity type tests

Phenomenon

Standard ¹

Level

Coupling

mode ²

Value

applied

Waveform

Source

imped.

Test

procedure

In

Per-

oper. form. ³

1 MHz burst

disturbance

IEC

60255-22-1

III

i/o, i/c, o/o, o/c

+i/–i, +o/–o

–i/c, +i/–i

2500 V_p

1000 V_p

800 V_p

400 damped

1 MHz waves/s

200 Ω

2 s per

coupling mode

yes

A

Voltage surge

IEC 60571-1

100 µs

50 µs

100 Ω

1 pos. and 1 neg.

voltage surge per

coupling mode

1500 V_p

3000 V_p

4000 V_p

7000 V_p

3.5 • U_batt

1.5 • U_batt

1.4 • U_batt

960 V_p

5 µs

1 µs

100 ns

2/20/2 ms

0.1/1/0.1 s

Supply related

surge

RIA 12

A ⁴

B

+i/–i

0.2 Ω

1 positive

surge

yes

A

EN 50155

1 Ω

5 Ω

Direct transient RIA 12

EN 50155

C

D

E

F

G

H

J

–i/c, +i/–i

10/100 µs

5/50 µs

5 pos. and 5 neg.

impulses

1800 V_p

3600 V_p

4800 V_p

8400 V_p

(for EN 50155

levels D, G,

H and L only)

0.5/5 µs

0.1/1 µs

0.05/0.1 µs

5/50 µs

100 Ω

Indirect coupled

transient

–o/c, +o/–o, –o/–i 1800 V_p

3600 V_p

0.5/5 µs

0.1/1 µs

0.05/0.1 µs

1/50 ns

K

L

4800 V_p

8400 V_p

A ⁵

A ⁶

Electrostatic

discharge

(to case)

IEC/EN

61000-4-2

4

contact discharge 8000 V_p

330 Ω

10 positive and

10 negative

discharges

yes

air discharge

15000 V_p

Electromagnetic IEC/EN

x

antenna

20 V/m

AM 80%

1 kHz

n.a.

26…1000 MHz

yes

A ⁵

A

field

61000-4-3

Electromagnetic ENV 50204

field,

pulse modulated

4

30 V/m

50% duty cycle,

200 Hz repetition

frequency

900 ±5 MHz

Electrical fast

transient/burst

IEC/EN

61000-4-4

3

4

direct, i/c, +i/–i

2000 V_pbursts of 5/50 ns 50 Ω

1 min positive

1 min negative

transients per

coupling mode

yes

A ⁵

B

2.5/5 kHz over

15 ms; burst

4000 V_p

period: 300 ms

Surge

IEC/EN

61000-4-5

4

3

x

3

i/c

+i/–i

4000 V_p

2000 V_p

2500 V_p

1.2/50 µs

12 Ω

2 Ω

5 pos. and 5 neg.

surges per

coupling mode

yes

A

B

i/c, +i/–i

10/700 µs

40 Ω

150 Ω

Conducted

disturbances

IEC/EN

61000-4-6

i, o, signal wires

10 V_rms

(140 dBµV)

AM 80%

1 kHz

0.15...80 MHz

¹Related and previous standards are referenced in: Technical Information: Standards.

²i = input, o = output, c = case.

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

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

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

surge.

⁵For converters with 3 output voltages, temporary deviation from specs possible.

⁶With class II equipment (CMZ, DMZ, LMZ) only met if case is earthed.

Edition 01/01.2001

13/25

Cassette Style

DC-DC Converters

M Series

Electromagnetic Emissions

[dBµV]

90

Table 10: Emissions at U_{i nom}and I_{o nom}

(LM/LMZ at 230 V AC)

07007

Types

Level

80

A

B

CISPR11/EN 55011

CISPR22/EN 55022

CISPR14/

70

EN 55014

≥30 MHz

≤30 MHz

≥30 MHz

60

50

40

30

20

10

0

AM 1000

AM 2000

AM 3000

B

<limit

BM 1000

BM 2000

BM 3000

B

A

B

A

<limit

CM 1000

CM 2000

CM 3000

B

A

<limit

MHz

DM 1000

DM 2000

DM 3000

B

A

<limit

Fig. 14

Typical disturbance voltage (quasi-peak) at the input accord-

ing to CISPR 11/22 and EN 55011/22, measured at U_{i nom}

and I_{o nom}

EM 1000

EM 2000

EM 3000

B

A

<limit

-

.

FM 1000

FM 2000

FM 3000

B

A

<limit

>limit

-

[dBµV/m]

50

07036

A

LM 1000

LM 2000

LM 3000

B

A

<limit

40

30

20

10

B

CMZ 1000

CMZ 2000

CMZ 3000

B

-

A

-

>A

<limit

-

>limit

DMZ 1000

DMZ 2000

DMZ 3000

-

A

-

A

-

>limit

LMZ 1000

LMZ 2000

LMZ 3000

B

-

A

-

A

<limit

-

>limit

[MHz]

0

Fig. 15

Typical radiated electromagnetic field strength (quasi-

peak) according to CISPR 11/22 and EN 55011/22, nor-

malized to a distance of 10 m, measured at U_{i nom}and

I_{o nom}

.

Edition 01/01.2001

14/25

Cassette Style

DC-DC Converters

M Series

Immunity to Environmental Conditions

Table 11: Mechanical stress

Test method

Standard

Test conditions

Status

Ca

Ea

Eb

Fc

Damp heat

steady state

IEC/DIN IEC 60068-2-3

MIL-STD-810D section 507.2 Relative humidity:

Duration:

Temperature:

40 ^±2°C

%

56 days

Unit not

operating

93 ^+2/-3

Shock

(half-sinusoidal)

IEC/EN/DIN EN 60068-2-27

MIL-STD-810D section 516.3 Bump duration:

Number of bumps:

Acceleration amplitude:

100 g_n= 981 m/s²

6 ms

18 (3 each direction)

Unit

operating

Bump

(half-sinusoidal)

IEC/EN/DIN EN 60068-2-29

MIL-STD-810D section 516.3 Bump duration:

Number of bumps:

Acceleration amplitude:

40 g_n= 392 m/s²

6 ms

6000 (1000 each direction)

Unit

operating

Vibration

(sinusoidal)

IEC/EN/DIN EN 60068-2-6

MIL-STD-810D section 514.3

Acceleration amplitude:

0.35 mm (10...60 Hz)

5 g_n= 49 m/s²(60...2000 Hz) operating

10...2000 Hz

Unit

Frequency (1 Oct/min):

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

Unit

wide band

Reproducibility

high

DIN 40046 part 23

Frequency band:

Acceleration magnitude:

Test duration:

20...500 Hz

4.9 g_{n rms}

3 h (1 h each axis)

operating

Kb

Salt mist, cyclic

(sodium chloride

NaCl solution)

IEC/EN/DIN IEC 60068-2-52

Concentration:

Duration:

Storage:

Storage duration:

Number of cycles:

5% (30°C)

Unit not

operating

2 h per cycle

40°C, 93% rel. humidity

22 h per cycle

3

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

Temperature

Standard -7

Option -9

Characteristics

Conditions

Operational ²

min

max

71

min

–40

–55

max

71

Unit

T_A

T_C

T_S

Ambient temperature ¹

Case temperature ³

Storage temperature ¹

–25

–40

°C

95

Non operational

100

¹MIL-STD-810D section 501.2 and 502.2.

²See: Thermal Considerations.

³Overtemperature lock-out at T_C>95°C (PTC).

Table 13: MTBF

Values at specified

case temperature

Module types

Ground benign

Ground fixed

Ground mobile

Unit

40°C

70°C

50°C

MTBF ¹

A...LM 1000 and C...LMZ 1000

A...LM 2000 and C...LMZ 2000

A...LM 3000 and C...LMZ 3000

320'000

255'000

225'000

130'000

105'000

80'000

40'000

32'000

28'000

35'000

28'000

25'000

h

Device hours ²

A...LM 1000 and C...LMZ 1000

A...LM 2000 and C...LMZ 2000

A...LM 3000 and C...LMZ 3000

880'000

720'000

740'000

¹Calculated in accordance with MIL-HDBK-217E (calculation according to edition F would show even better results)

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

Edition 01/01.2001

15/25

Cassette Style

DC-DC Converters

M Series

Mechanical Data

Dimensions in mm. Tolerances ±0.3 mm unless otherwise indicated.

European

Projection

09012

Mounting holes for retaining clips V

Male connector H11 according to DIN 41 612

(Gold plated contacts on customer's request)

34

100 ^±0.6

Front plate

103

M 3; depth = 4 mm

(chassis mount)

Main

face

Rear

face

Measuring point for

case temperatureT_C

22

Mounting plane of

connector H11

(11.6)

88

38.7

111.2 ^±0.8(3U)

Back plate

94.5 ^±0.1

95 ^±0.5

22.30

17.25

12.17

7.09

0

OK (LED green)

I_oL(LED red)

Inhibit i (LED red)

Potentiometer (option D)

or potentiometer (option V)

Test sockets (option A)

Potentiometer(s) (option P)

Note: Long case, elongated by 60 mm for 220 mm rack

Fig. 16

depth, is available on request.

DC-DC converter in case M02, weight 770 g (approx.).

Case aluminium, black finish and self cooling.

Edition 01/01.2001

16/25

Cassette Style

DC-DC Converters

M Series

Safety and Installation Instructions

10015

Connector Pin Allocation

The connector pin allocation table defines the electrical

potentials and the physical pin positions on the H11 con-

nector. Pin no. 26, the protective earth pin present on all

AM…LM (class I equipment) DC-DC converters is leading,

ensuring that it makes contact with the female connector

first.

32 29 26 23 20 17 14 11 8

5 2

Fig. 17

View of male H11 connector.

Table 14: Pin allocation

Electrical determination

A…LM 1000

C...LMZ 1000

A…LM 2000

C...LMZ 2000

A…LM 3000

C...LMZ 3000

Ident

Inhibit control input

Safe Data or ACFAIL

2

5

i

2

5

i

2

5

i

2

5

i

2

5

i

2

5

i

D or V

Output voltage (positive)

Output voltage (negative)

8

11

Vo1+

Vo1–

8

11

Vo1+

Vo1–

8

11

8

11

8

11

Vo3+

Vo3–

8

11

Vo3+

Vo3–

Control input + ¹

Control input –

14

17

R

G

14

17

R

G

Output voltage (positive)

Output voltage (negative)

14

17

Vo2+

Vo2–

14

17

Vo2+

Vo2–

14

17

Vo2+

Vo2–

14

17

Vo2+

Vo2–

Output voltage (positive)

Output voltage (negative)

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

20

23

Vo1+

Vo1–

Protective earthing ²

26

DC input voltage ³

DC input voltage

29

32

Vi+

Vi–

29

32

Vi+

Vi–

29

32

Vi+

Vi–

29

32

Vi+

Vi–

29

32

Vi+

Vi–

29

32

Vi+

Vi–

AC input voltage ⁴

AC input voltage

29

32

N

P

29

32

N

P

29

32

N

P

29

32

N

P

29

32

N

P

29

32

N

P

¹This function is not simultaneously available with option P

²Leading pin (pregrounding)

³AM, BM, CM, DM, EM, FM and CMZ, DMZ types

⁴LM and LMZ types

Installation Instructions

The M series DC-DC converters are components, intended

exclusively for inclusion within other equipment by an in-

dustrial assembly operation or by professional installers. In-

stallation must strictly follow the national safety regulations

in compliance with the enclosure, mounting, creepage,

clearance, casualty, markings and segregation require-

ments of the end-use application. See also: Technical Infor-

mation: Installation and Application.

Make sure that there is sufficient air flow possible for con-

vection cooling. This should be verified by measuring the

case temperature when the unit is installed and operated in

the end-use application. The maximum specified case tem-

perature T_{C max}shall not be exceeded. See also: Thermal

Considerations.

If the end-product is to be UL certified, the temperature of

the main isolation transformer should be evaluated as part

of the end-product investigation.

Connection to the system shall be made via the female con-

nector H11 (see Accessories). Other installation methods

may not meet the safety requirements.

Protection Degree

Condition: Female connector fitted to the unit.

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

except those with option D or V with potentiometer.

IP 30: All units fitted with options A or K, except those with

option P, and except those with option D or V with

potentiometer.

AM...LM DC-DC converters (class I equipment) are pro-

vided with pin no. 26 ( ), which is reliably connected with

their case. For safety reasons it is essential to connect this

pin with the protective earth of the supply system if required

in: Safety of operator accessible output circuit .

An input fuse is built-in in the connection from pin no. 32

(Vi– or P ) of the unit. Since this fuse is designed to protect

the unit 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

might be necessary in the wiring to one or both input pins

(no. 29 and/or no. 32).

IP 20: All units fitted with option P, or with option D or V with

potentiometer.

Cleaning Agents

In order to avoid possible damage, any penetration of liq-

uids (e.g. cleaning fluids) is to be prevented, since the

power supplies are not hermetically sealed.

Important: Whenever the inhibit function is not in use,

pin 2 (i) should be connected to pin 23 (Vo1–) to enable

the output(s).

Do not open the modules, or guarantee will be invali-

dated.

Edition 01/01.2001

17/25

Cassette Style

DC-DC Converters

M Series

Isolation

The electric strength test is performed as a factory test in guarantee/warranty claims resulting from electric strength

accordance with IEC/EN 60950 and UL 1950 and should field tests.

not be repeated in the field. Power-One will not honour any

Table 15: Isolation

Characteristic

Input to

case

class I

Input to

case

class II

Input to

output

class I

Input to Output to Output to Output to Unit

output

class II

case

option H

output

Electric

strength

test voltage

Required according to

IEC/EN 60950

1.5

2.1

2.8

2.0

3.0

4.2

5.6

4.0

3.0 ¹

4.2 ¹

5.6 ¹

4.0 ¹

3.0

4.2

5.6

4.0

0.5

0.7

1.4

1.0

0.5

0.7

2.8

2.0

-

kV_rms

-

kV DC

Actual factory test 1 s

0.3

0.2

AC test voltage equivalent

to actual factory test

kV_rms

Insulation resistance at 500 V DC

>300

>100 ²

MΩ

¹In accordance with IEC/EN 60950 only subassemblies are tested in factory with this voltage.

²Tested at 300 V DC.

For creepage distances and clearances refer to: Technical Information: Safety.

Safety of Operator Accessible Output Circuit

If the output circuit of a DC-DC converter is operator acces-

sible, it shall be an SELV circuit according to the IEC/EN

60950 related safety standards.

DC-DC converter to be an SELV circuit. Only voltage

adaption and rectification to the specified input voltage

range of the DC-DC converter is needed.

Since the M series DC-DC converters provide double or re-

inforced insulation between input and output, based on a

rated primary input voltage of 250 V AC and 400 V DC (for

class II units 250 V AC and DC), only operational insulation

is needed between the AC mains and the input of the DC-

DC converter. This means that there is no need for an elec-

trical isolation between the AC mains circuit and the DC-DC

converter input circuit to cause the output of an M series

The following table shows a possible installation configura-

tion, 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 nomi-

nal voltages if in series or +/– configuration) of 36 V.

However, it is the sole responsibility of the installer to as-

sure the compliance with the relevant and applicable safety

regulations. More information is given in: Technical Infor-

mation: Safety.

Table 16: Safety concept leading to an SELV output circuit

Conditions Front end

DC-DC converter

Result

Nominal

supply

Minimum required grade

of insulation, to be pro-

Maximum rated

DC output voltage safety status of the ment

Minimum required Equip-

Measures to achieve the Safety status

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 V ¹(The

rated voltage

between any input

Primary circuit

Class I Double or reinforced

(A...LM) insulation, based on

250 V AC and 400 V DC

(provided by the DC-DC

converter) and earthed

case ²

SELV circuit

≤250 V AC no need for electrical

isolation between the

mains supply voltage and pin and earth can

theDC-DC converter

input voltage)

be up to 250 V AC

or 400 V DC)

≤250 V ¹(The

rated voltage

between any input

pin and earth can

be up to 250 V AC

or DC)

Class II Double or reinforced

(CMZ,

DMZ,

LMZ)

insulation, based on

250 V AC or DC (provided

by the DC-DC converter)

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 relevant safety standard, e.g. IEC/EN 60950.

Edition 01/01.2001

18/25

Cassette Style

DC-DC Converters

M Series

Standards and Approvals

Max. 250 V AC or

400 (250) V DC

AM...LM DC-DC converters correspond to class I equip-

ment, while CMZ, DMZ, LMZ types correspond to class II

equipment. All types are UL recognized according to UL

1950, UL recognized for Canada to CAN/CSA C22.2 No.

950-95 and LGA approved to IEC/EN 60950 standards.

10018

+

~

Mains

AC-DC

front

end

DC-DC

con-

verter

Fuse

Battery

SELV

Fuse

–

~

The units have been evaluated for:

• Building in

Max. 250 V AC or

400 (250) V DC

Earth connection

(class I)

• Basic insulation between input and case and double or

reinforced insulation between input and output, based on

250 V AC and 400 V DC (class I equipment)

• Double or reinforced insulation between input and case

and between input and output, based on 250 V AC and

DC (class II equipment)

• Operational insulation between output(s) and case

• Operational insulation between the outputs

• The use in a pollution degree 2 environment

• Connecting the input to a primary or secondary circuit

with a maximum transient rating of 2500 V

Fig. 18

Schematic safety concept.

Use earth connection as per table: Safety concept leading

to an SELV output circuit. Use fuse if required by the appli-

cation. See also: Installation Instructions.

The DC-DC converters are subject to manufacturing sur-

veillance in accordance with the above mentioned UL,

CSA, EN and with ISO 9001 standards.

Description of Options

Table 17: Survey of options

Option

–9

Function of option

Characteristic

Extended operational ambient temperature range

T_A= –40...71°C

A

Test sockets at front panel for check of output voltage U_ointernally measured at the connector terminals

E

Electronic inrush current limitation circuitry

Potentiometer for fine adjustment of output voltage

Input fuse built-in inside case

Active inrush current limitation for CM, EM, LM, CMZ, LMZ

Adjustment range ±5% of U_{o nom}, excludes R input

Fuse not externally accessible

P ¹

F

H

Enhanced output to case electric strength test voltage 2000 V AC (standard: 1000 V AC)

D ²

V ^{2 3}

Input and/or output undervoltage monitoring circuitry

Safe data signal output (D0...D9)

ACFAIL signal according to VME specifications (V0, V2, V3)

¹Function R excludes option P and vice versa

²Option D excludes option V and vice versa

³Only available if main output voltage U_o1= 5.1 V

-9 Extended Temperature Range

P Potentiometer

Option -9 extends the operational ambient temperature

range from –25...71°C (standard) to –40...71°C. The power

supplies provide full nominal output power with convection

cooling.

Optionally built-in multi-turn potentiometers provide an out-

put voltage adjustment range of minimum ±5% of U_{o nom}

and are accessible through holes in the front cover. Com-

pensation of voltage drop across connector and wiring be-

comes easily achievable. For output voltages U_o> U_{o nom}

the minimum input voltage according to: Electrical Input

Data increases proportionally to U_o/U_{o nom}

,

A Test Sockets

.

Test sockets (pin Ø = 2 mm, distance d = 5.08 mm) are lo-

cated at the front of the module. The output voltage is

sensed at the connector pins inside the module.

Note: Potentiometers are not recommended for mobile ap-

plications.

Table 18: Configuration of option A and option P

Type of option

AM...LM/CMZ...LMZ 1000

AM...LM/CMZ...LMZ 2000

AM...LM/CMZ...LMZ 3000

Output 1

Output 2

Output 1

Output 2

Output 3

Potentiometer ¹

Test sockets

yes

no

¹AM...LM 1000 types equipped with option P do not provide the R input simultaneously, pins 14 and 17 are not connected.

Edition 01/01.2001

19/25

Cassette Style

DC-DC Converters

M Series

E Electronic Inrush Current Limitation

F Fuse Not Accessible

Available for CM, EM, LM and CMZ, LMZ types.

The standard M units have a fuseholder containing a 5 × 20

mm fuse which is externally accessible and to be found in

the back plate near the connector. Some applications re-

quire an inaccessible fuse. Option F provides a fuse moun-

ted directly onto the main PCB inside the case.

The standard version of the modules CM, DM, EM, LM as

well as CMZ, DMZ, LMZ include a passive inrush current

limitation in the form of a NTC resistor.

For applications which require an improved inrush current

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

E block diagram has been developed. Typical inrush cur-

rent waveforms of units equipped with this option are

shown below.

The full self-protecting functions of the module do normally

not lead to broken fuses, except as a result of inverse polar-

ity at the input of an AM, BM, CM, FM or CMZ type or if a

power component inside fails (switching transistor, free-

wheeling diode, etc). In such cases the defective unit has to

be returned to Power-One for repair.

CM and CMZ units meet the CEPT/ETSI standards for 48 V

DC supply voltage according to ETS 300132-2 if fitted with

option E combined with option D6 (input voltage monitor-

ing). Option D6, externally adjustable via potentiometer, is

necessary to disable the converter at input voltages below

the actual service ranges, avoiding an excessive input cur-

rent when the input voltage is raised slowly according to

ETS 300132-2. Option D6 threshold level U_{t i}+ U_{h i}(refer to

description of option D) should be adjusted to 36.0...40.5 V

for 48 V DC nominal supply voltage (for 60 V DC systems,

threshold should be set to 44.0...50.0 V DC). The D output

(pin 5) should be connected to the inhibit (pin 2). For appli-

cations where potentiometers are not allowed refer to op-

tion D9.

H Enhanced Electric Strenght Test

Electric strength test voltage output to case 2800 V DC

(2000 V AC) instead of 1400 V DC (1000 V AC).

Table 19: Inrush current characteristics with option E

Characteristic

CM, CMZ

EM, LM, LMZ

Unit

at U_i= 110 V DC

at U_i= 372 V DC

typ

max

typ

max

typ

max

I_{inr p}

t_inr

Peak inrush current

Inrush current duration

6.5

22

8

2.2

10

4

7.3

20

10

40

A

30

20

ms

11019

Precautions:

I_i[A]

In order to avoid overload of the series resistor R_Ithe 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.

12

10

8

If CM and CMZ types are driven by input voltages below

35 V DC or LM and LMZ types below 100 V AC, the maxi-

mum case temperature should be derated by 10 K or the to-

tal output power should be derated by 20%. EM, LM and

LMZ units driven by DC input voltages do not need to be

derated within the full specified input voltage range.

CM, CMZ at 110 V DC

EM, LM, LMZ at 372 V DC

6

EM, LM, LMZ at 110 V DC

Availability:

Option E is available for CM, EM, LM and CMZ, LMZ mod-

ules with a nominal output power of 51 W maximum.

t

4

2

0

t

inr

I_i= P_o/(U_i• η)

11018

Normal operation

(FET fully conducting)

t [ms]

0

10

20

30 40

Control

Fig. 20

FET

Typical inrush current waveforms of CM, CMZ, EM, LM

and LMZ DC-DC converter with option E

Rectifier

(LM/LMZ types)

R_S

C_i

R_I

Fig. 19

Option E block diagram

Edition 01/01.2001

20/25

Cassette Style

DC-DC Converters

M Series

D Undervoltage Monitor

The input and/or output undervoltage monitoring circuit op-

erates 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 as soon as one of the moni-

tored voltages drops below the preselected threshold level

U_t. The return for this signal is Vo1– (pin 23). The D output

recovers when the monitored voltage(s) exceed(s) U_t+U_h.

The threshold level U_tis either adjustable by a potentio-

meter, accessible through a hole in the front cover, or is fac-

tory adjusted to a fixed value specified by the customer.

Option D exists in various versions D0...D9 as shown in the

following table.

Table 20: Undervoltage monitor functions

Output type

JFET NPN

Monitoring

Minimum adjustment range

of threshold level U_t

Typical hysteresis U_h[% of U_t]

for U_{t min}...U_{t max}

U_i

U_o1

U_ti

U_to

U_hi

U_ho

2.3...1

–

D1

D2

D3

D4

D0

D5

D6

D7

D8

D9

no

yes

no

yes

no

–

3.5 V...48 V ¹

–

1

–

U_{i min}...U_{i max}

3.0...0.5

–

2

yes

no

U_{i min}...U_{i max}

0.95...0.98 U_o1

3.5 V...48 V ³

–

"0"

–

"0"

no

–

1.8...1

–

3 4

yes

U_{i min}...U_{i max}

2.2...0.4

2

yes

0.95...0.98 U_o1

"0"

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

²Fixed value between 95% and 98% of U_o1(tracking)

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

One

⁴Adjusted at I_{o nom}

11006

Vo1+

JFET output (D0…D4):

Connector pin D is internally connected via the drain-

R

p

source path of a JFET (self-conducting type) to the nega-

tive potential of output 1. U_D≤ 0.4 V (logic low) corresponds

to a monitored voltage level (U_iand/or U_o1) <U_t. The current

I_Dthrough 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.

I

D

U

D

U_i, U_o1status

U_ior U_o1< U_t

D output, U_D

Vo1–

low, L, U_D≤ 0.4 V at I_D= 2.5 mA

high, H, I_D≤ 25 µA at U_D= 5.25 V

Fig. 21

U_iand U_o1> U_t+ U_h

Options D0...D4, JFET output

11007

Vo1+

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. U_D≤ 0.4 V (logic low) corresponds to a monitored

voltage level (U_iand/or U_o1) > U_t+ U_h. The current I_D

through the open collector should not exceed 20 mA. The

NPN output is not protected against external overvoltages.

U_Dshould not exceed 40 V.

R

p

I

D

U

D

U_i, U_o1status

U_ior U_o1< U_t

D output, U_D

Vo1–

high, H, I_D≤ 25 µA at U_D= 40 V

low, L, U_D≤ 0.4 V at I_D= 20 mA

Fig. 22

U_iand U_o1> U_t+ U_h

Options D5...D9, NPN output

Edition 01/01.2001

21/25

Cassette Style

DC-DC Converters

M Series

11021

U_D

DU_ti

U_hi

Threshold tolerances and hysteresis:

If U_iis monitored, the internal input voltage after the input

filter and rectifier (EM, LM and LMZ types) is measured.

Consequently this voltage differs from the voltage at the

connector pins by the voltage drop DU_tiacross input filter

and rectifier. The threshold level of the D0 and D9 options is

factory adjusted at nominal output current I_{o nom}and at T_A=

25°C. The value of DU_tidepends upon the input voltage

range (AM, BM, ...), threshold level U_t, temperature and in-

put current. The input current is a function of the input volt-

age and the output power.

U_{D high}

P

U_{D low}

U_i

U_ti

Fig. 23

Definition of U_ti, DU_tiand U_hi(JFET output)

Input voltage monitoring

NPN

U_D

11008

U_{D high}

3

U_{D low}

0

t

I_D

I_{D high}

I_{D low}

0

t

JFET U_D

U_{D high}

U_{D low}

0

t

1

4

t_h

t_{low min}

t_{high min}

U_o1

U_{o1 nom}

1

t_h

1

0.95

t

0

U_i[V DC]

U_ti+U_hi

U_ti

0

Input voltage failure

Switch-on cycle

Input voltage sag

Switch-on cycle and subsequent

input voltage failure

Output voltage monitoring

NPN U_D

2

U_{D high}

3

U_{D low}

0

t

I_D

I_{D high}

I_{D low}

0

U_D

JFET

U_{D high}

U_{D low}

0

t

4

t_{low min}

¹See: Electrical Output Data, for hold-up time.

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

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

an external source.

U_o1

U_{o1 nom}

U_to+U_ho

U_to

⁴t_{low min}= 40...200 ms, typically 80 ms

0

Output voltage failure

Fig. 24

Relationship between U_i, U_o1, U_D, I_Dand U_o1/U_{o nom}versus time.

Edition 01/01.2001

22/25

Cassette Style

DC-DC Converters

M Series

V ACFAIL Signal (VME)

Formula for additional external input capacitor

2 • P_o• (t_h+ 0.3 ms) • 100

Available for units with U_o1= 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 speci-

fied at a sink current of I_V= 48 mA to U_V≤ 0.6 V (open-col-

lector output of a NPN transistor). The pull-up resistor feed-

ing the open-collector output should be placed on the VME

backplane.

C_{i ext}= ––––––––––––––––––––– – C_{i min}

2

η • (U_ti²– U_{i min}

)

where as:

C_{i min}= minimum internal input capacitance [mF], accord-

ing to the table below

C_{i ext}= external input capacitance [mF]

P_o= output power [W]

η

t_h

= efficiency [%]

= hold-up time [ms]

After the ACFAIL signal has gone low, the VME standard

requires a hold-up time t_hof 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_his provided by the internal input

capacitance. Consequently the working input voltage and

the threshold level U_tishould be adequately above the mini-

mum input voltage U_{i 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 ca-

pacitor (C_{i ext}) should be added.

U_{i min}= minimum input voltage [V]

U_ti= threshold level [V]

Remarks: The threshold level U_tiof option V2 and V3 is ad-

justed during manufacture 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 or LMZ

units are AC powered, an external input capacitor cannot

be applied unless an additional rectifier is provided.

Formula for threshold level for desired value of t_h:

2 • P_o• (t_h+ 0.3 ms) • 100

2

U_ti= ––––––––––––––––––––– + U_{i min}

C_{i min}• η

Table 21: Available internal input capacitance and factory potentiometer setting of U_{t i}with resulting hold-up time

Types

C_{i min}

U_{t i}

AM

2.6

BM

0.67

19.5

0.69

CM/CMZ

0.37

DM/DMZ

0.14

EM

0.14

104

6.69

FM

0.37

39

LM/LMZ

0.14

Unit

mF

9.5

39

61

120

V DC

ms

t_h

0.34

1.92

1.73

2.92

8.18

voltage(s) exceed(s) U_t+ U_h. The threshold level U_tis either

adjustable by a potentiometer, accessible through a hole in

the front cover, or is factory adjusted to a determined cus-

tomer specified value.

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

voltage lock-out circuit. A logic "low" signal is generated at

pin 5 as soon as one of the monitored voltages drops below

the preselected threshold level U_t. The return for this signal

is Vo1– (pin 23). The V output recovers when the monitored

Versions V0, V2 and V3 are available as shown below.

Table 22: Undervoltage monitor functions

V output

(VME compatible)

Monitoring

Minimum adjustment range

of threshold level U_t

U_tiU_to

Typical hysteresis U_h[% of U_t]

for U_{t min}...U_{t max}

U_i

U_o1

no

U_hi

U_ho

1

–

V2

V3

V0

yes

U_{i min}...U_{i max}

3.0...0.5

2.2...0.4

-

1

2

yes

no

0.95...0.98 U_o1

"0"

-

3 4

U_{i min}...U_{i max}

-

3 4

yes

0.95...0.98 U_o1

"0"

1

2

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

Fixed value between 95% and 98% of U_o1

3

(tracking), output undervoltage monitoring is not a requirement of VME standard. Adjusted at I_{o nom}

.

4

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

11009

V output (V0, V2, V3):

Vo1+

Connector pin V is internally connected to the open collec-

tor of a NPN transistor. The emitter is connected to the

R

p

negative potential of output 1. U_V≤ 0.6 V (logic low) corre-

sponds to a monitored voltage level (U_iand/or U_o1) < U_t.

The current I_Vthrough the open collector should not exceed

50 mA. The NPN output is not protected against external

overvoltages. U_Vshould not exceed 80 V.

I

V

U

V

U_i, U_o1status

U_ior U_o1< U_t

V output, U_V

Vo1–

low, L, U_V≤ 0.6 V at I_V= 50 mA

high, H, I_V≤ 25 µA at U_V= 5.1 V

Fig. 25

Output configuration of options V0, V2 and V3

U_iand U_o1> U_t+ U_h

Edition 01/01.2001

23/25

Cassette Style

DC-DC Converters

M Series

11023

Threshold tolerances and hysteresis:

U_V

DU_ti

U_hi

If U_iis monitored, the internal input voltage is measured af-

ter the input filter and rectifier (EM, LM and LMZ types).

Consequently this voltage differs from the voltage at the

connector pins by the voltage drop ∆U_{t i}across input filter

and rectifier. The threshold level of option V0 is factory ad-

justed at I_{o nom}and T_A= 25°C. The value of ∆U_{t i}depends

upon the input voltage range (AM, BM, ...), threshold level

U_{t i}, temperature and input current. The input current is a

function of input voltage and output power.

U_{V high}

P

U_{V low}

U_i

U_ti

Fig. 26

Definition of U_ti, ∆U_tiand U_hi

Input voltage monitoring

2

t_{low min}

V2

U_{V high}

U_V

3

11010

4

2

4

2

U_{V low}

0

t

t_{low min}

V3

U_{V high}

U_V

3

U_{V low}

0

t

1

t_h

U_o1

5.1 V

4.875 V

2.0 V

0

t

U_i[V DC]

U_ti+ U_hi

U_ti

t

0

Input voltage failure

Switch-on cycle

Input voltage sag

Switch-on cycle and subsequent

input voltage failure

Output voltage monitoring

V2 U_V

U_{V high}

4

U_{V low}

t

0

2

t_{low min}

V3 U_V

U_{V high}

3

4

U_{V low}

0

U_o1

5.1 V

4.875 V

2.0 V

0

t

¹VME request: minimum 4 ms

²t_{low min}= 40...200 ms, typically 80 ms

U_i

³U_Vlevel not defined at U_o1< 2.0 V

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

pull-up resistor R_Pis connected to Vo1+. The V signal remains

high if R_Pis connected to an external source.

U_ti+ U_hi

U_ti

t

0

Output voltage failure

Fig. 27

Relationship between U_i, U_o1, U_V, I_Vand U_o1/U_{o nom}versus time.

Edition 01/01.2001

24/25

Cassette Style

DC-DC Converters

M Series

Accessories

A variety of electrical and mechanical accessories are

available including:

– Front panels for 19" rack mounting, Schroff and Intermas

systems.

– Mating H11 connectors with screw, solder, fast-on or

press-fit terminals.

– Connector retention facilities.

– Code key system for connector coding.

– Flexible H11 PCB for mounting of the unit onto a PCB.

– Chassis mounting plates for mounting the 19" cassette to

a chassis/wall where only frontal access is given.

– Universal mounting bracket for DIN-rail or chassis moun-

ting.

For more detailed information please refer to: Accessory

Products.

Front panels

H11 female connector,

Code key system

Flexible H11 PCB

Universal mounting bracket for DIN-rail mounting.

Mounting plate,

Connector retention clips

Edition 01/01.2001

25/25


型号：	FM2540-7PAH
厂家：	BEL FUSE INC.
描述：	DC-DC Regulated Power Supply Module, 2 Output, 50W, Hybrid, METAL, CASE M02, MODULE 输出元件电源电路
文件：	总25页 (文件大小：568K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

FM2540-7PAH [BEL]

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