40IMR3-1515-2 [BEL]

DC-DC Regulated Power Supply Module, 2 Output, 3W, Hybrid, PLASTIC, DIP-24;


型号：	40IMR3-1515-2
厂家：	BEL FUSE INC.
描述：	DC-DC Regulated Power Supply Module, 2 Output, 3W, Hybrid, PLASTIC, DIP-24 光电二极管输出元件
文件：	总6页 (文件大小：65K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Board Mountable

DC-DC Converters

IMR 3 Series

3 Watt DC-DC Converters

IMR 3 Series

Input voltage range up to 72 V DC

1 output up to 30 V DC

500 V DC I/O electric strengh test voltage

• Input voltage range up to 3:1

• High efficiency up to 73%

• Short-circuit proof

• No derating

• DIL 24 plastic package

• Low cost

1.26"

0.47"

0.79"

Summary

The IMR 3 serie of DC-DC converters have been devel-

oped for powering commercial type of electronic circuits,

e.g. telephone systems components, industrial controllers

and small appliances. They are suitable for applications

with standard battery voltages. The IMR 3 converters fea-

ture good efficiency and good dynamic response to load

changes and at start-up. The IMR 3 modules are short-cir-

cuit and no-load proof.

Type Survey and Key Data

Table 1: Type survey

Output

Output power Efficiency ¹

Input voltage range

Option

U_{o nom}

I_{o nom}

[mA]

h_min

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

20...60 V DC

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

36...72 V DC

[V]

3.3

P_{o max}[W]

[%]

9...18 V DC ²

18...36 V DC

24 IMR 3-03-2

24 IMR 3-05-2

24 IMR 3-12-2

24 IMR 3-15-2

700

500

250

200

250

125

100

2.3

2.5

12 IMR 3-03-2

12 IMR 3-05-2

12 IMR 3-12-2

12 IMR 3-15-2

40 IMR 3-03-2

40 IMR 3-05-2

40 IMR 3-12-2

40 IMR 3-15-2

48 IMR 3-03-2

48 IMR 3-05-2

48 IMR 3-12-2

48 IMR 3-15-2

-7

±5

2.5

12 IMR 3-0505-2 24 IMR 3-0505-2 40 IMR 3-0505-2 48 IMR 3-0505-2

12 IMR 3-1212-2 24 IMR 3-1212-2 40 IMR 3-1212-2 48 IMR 3-1212-2

12 IMR 3-1515-2 24 IMR 3-1515-2 40 IMR 3-1515-2 48 IMR 3-1515-2

±12

±15

¹Efficiency at U_{i nom}and I_{o nom}

²12 IMR 3 types: Output current I_{o nom}see: Output Data

Table of Contents

Page

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

Type Survey and Key Data .............................................. 1

Type Key .......................................................................... 2

Functional Description...................................................... 2

Electrical Input Data ......................................................... 2

Electrical Output Data ...................................................... 3

Electromagnetic Compatibility (EMC) .............................. 4

Immunity to Environmental Conditions............................. 4

Mechanical Data .............................................................. 5

Safety and Installation Instructions .................................. 5

Edition 4/04.2001

1/6

Board Mountable

DC-DC Converters

IMR 3 Series

Type Key

24 IMR 3 - 12 12 -2

Nominal input voltage in volt ................................... 12...48

Series .......................................................................... IMR

Nominal output power in watt........................................... 3

Nominal output voltage for output 1 in volt .............. 05...15

Nominal output voltage for output 2 in volt .............. 05...15

Operational ambient temperature range T_A

–10...50°C .................................................. -2

–25...71°C (option) ..................................... -7

Functional Description

03059

03060

Vo+

Vi+

C_i

Vi+

C_o

Ref.

COM

C_o

C_i

C_o

Control

Ref.

Vi–

Vo–

Vi–

Vo–

Fig. 1

Single output converter block diagram

Fig. 2

Dual output converter block diagram

Attention: C_i= 4.7 µF/100 V must be added in any applica-

tion. C_o= 10 µF to minimize ripple and noise to <100 mV_PP

(Capacitors should be of low ESR types).

Electrical Input Data

General condition: T_A= 25°C unless otherwise specified

Table 2a: Input data

Input

12 IMR 3

24 IMR 3

Characteristics

Conditions

min

typ

max

min

typ

max

Unit

U_i

Input voltage range

T_{A min}...T_{A max}

I_o= 0...I_{o nom}

V DC

U_{i nom}

U_i

Nominal input voltage

Input voltage without

damage

I_{i 0}

I_{i L}

No load input current

U_{i nom}, I_o= 0

Input current limitation

response

U_{i nom}, full load

1.25 P_{i nom}

U_{i rev}

Reverse input voltage

protection

U_i= negative or

reverse polarity

shunt diode

use external fuse

shunt diode

use external fuse

Edition 4/04.2001

2/6

Board Mountable

DC-DC Converters

IMR 3 Series

Table 2b: Input data

Input

40 IMR 3

typ

48 IMR 3

Characteristics

Conditions

min

max

min

typ

max

Unit

U_i

Input voltage range

T_{A min}...T_{A max}

I_o= 0...I_{o nom}

V DC

U_{i nom}

U_i

Nominal input voltage

Input voltage without

damage

I_{i 0}

I_{i L}

No load input current

U_{i nom}, I_o= 0

Input current limitation

response

U_{i nom}, full load

1.25 P_{i nom}

U_{i rev}

Reverse input voltage

protection

U_i= negative or

reverse polarity

shunt diode

use external fuse

shunt diode

use external fuse

Electrical Output Data

General condition: T_A= 25°C unless otherwise specified

Table 3a: Output data for single output types

Output

.. IMR 3-03

min typ max

.. IMR 3-05

.. IMR 3-12

min typ max

.. IMR 3-15

Characteristics

Conditions

min typ max

Unit

U_o

Output voltage

U_{i nom}, I_{o nom}

3.24

3.36

4.90

5.10

11.76

12.24

14.70

15.30

I_{o nom}Nominal output current: U_{i min}...U_{i max}

– 12 IMR 3 types

– other types

(0.2...1) I_{o nom}

560

700

400

500

200

250

150

200

u_o

Output voltage noise:

– without C_o

U_{i nom}

I_{o nom}

300

100

300

100

300

100

300

100

mV_pp

– with C_o

(BW=20MHz)

DU_{o U}Static line regulation

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

I_{o nom}

±1

DU_{o I}

Static load regulation

U_{i nom}

(0.2...1) I_{o nom}

±2

a_Uo

Temperature coefficient U_{i nom}

±0.02

±0.02 %/K

I_{o nom}

f_s

Switching frequency

kHz

Table 3b: Output data for dual output types

Output

.. IMR 3-0505

.. IMR 3-1212

.. IMR 3-1515

Characteristics

U_oOutput voltage

Conditions

min

typ

max

±5.10

min

±11.76

typ

max

min

±14.70

typ

max

Unit

U_{i nom}, I_{o nom}

±4.90

±12.24

±15.30

I_{o nom}Nominal output current: U_{i min}...U_{i max}

– 12 IMR 3 types

– other types

(0.2...1) I_{o nom}

±200

±250

±100

±125

±80

±100

u_o

Output voltage noise:

– without C_o

U_{i nom}

I_{o nom}

300

100

300

100

300

100

mV_pp

– with C_o

(BW=20MHz)

DU_{o U}Static line regulation

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

I_{o nom}

±1

DU_{o I}Static load regulation

U_{i nom}

±5

(0.2...1) I_{o nom}

Temperature coefficient U_{i nom}

I_{o nom}

a_Uo

±0.02

±0.02 %/K

f_s

Switching frequency

kHz

Edition 4/04.2001

3/6

Board Mountable

DC-DC Converters

IMR 3 Series

Thermal Considerations

Connection in Parallel

If a converter is operated, the relationship between the am-

bient temperature T_Aand the case temperature T_Cdepends

heavily on the conditions of operation and integration into a

system. The thermal conditions are influenced by input volt-

age, output current, airflow, temperature of surrounding

components and surfaces and the properties of the printed

circuit board. The specified maximum ambient temperature

T_{A max}is therefore only an indicative value and under practi-

cal operating conditions, the ambient temperature T_Amay

be higher or lower than this value.

Connecting the outputs of two or more converters in parallel

is not recommended due to uneven power distribution

among the outputs.

Protection Scheme

The IMR series is continuously short circuit protected by

means of input power limitation. The unit will not be dam-

aged if started up into a short circuit. After removal of the

short circuit, it will resume normal operation.

The IMR series is also no-load proof, meaning that the

regulation is still effective with no load and the output volt-

age does not rise. However, due to component tolerances,

oscillation could occur and ripple and noise can be outside

of specified values. If the converter is used in senitive elec-

tronic circuits with no-load conditions, it is recommended to

pre-load the outputs with at least 20% of the specified

nominal load.

Caution: The case temperature T_Cmeasured at the

Measuring point of case temperature T_C(see: Mechani-

cal Data) may under no circumstances exceed the

specified maximum value. The installer must ensure that

under all operating conditions T_Cremains within the lim-

its stated in the table: Temperature specifications.

Connection in Series

The outputs of one or more units can be connected in se-

ries. No suppressor diodes are required. Power-One how-

ever recommends to protect each individual output with a

Zener diode or preferably a suppressor diode, to avoid re-

verse polarity that may occur if the output voltages do not

rise simultaneously.

Electromagnetic Compatibility (EMC)

07025

Filter recommendations for compliance with

CISPR 22/EN 55022, class B

Vi+

Electromagnetic emission requirements according to EN

55022, class B can be easely achieved by adding an exter-

nal input filter consisting of three additional capacitors and

one commom mode ring core choke.

C₁

L₁

C_i

C₂

Vi–

The filter components should be placed as close as possi-

ble to the input of the converter.

Fig. 3

Input filter arrangement

Table 4: Input filter components

Input voltage

C₁

C₂

Type

L₁

Type

C_i

Type

12, 24, 40, 48 V DC

2.2 µF ¹

100 V

2.2 µF ¹

100 V

Siemens

B 32522

C1225-K

2.2 mH

Siemens

B 82722

A2202-N1

4.7 µF

100 V

Al-Chip

(low ESR)

¹Only valid for input voltages up to 60 V DC.

Immunity to Environmental Conditions

Table 5: Temperature specifications, valid for air pressure of 800...1200 hPa (800...1200 mbar)

Temperature

Standard -2

Option -7

Characteristics

Conditions

U_{i nom}

min

max

min

–25

–40

max

Unit

T_A

T_C

T_S

Ambient temperature

–10

–25

°C

Case temperature

I_o= I_{o nom}

Storage temperature

Non operational

100

Table 6: MTBF

Values at specified case temperature

Ground Benign

Ground Fixed

Ground Mobile

40°C

50°C

MTBF according to MIL-HDBK-217F, N2

3'984'000 h

896'100 h

343'800 h

Edition 4/04.2001

4/6

Board Mountable

DC-DC Converters

IMR 3 Series

Mechanical Data

European

Projection

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

09038

min. 33.8

31.8

2.54

mounting space

required

Measuring point

of case temperature T_C

Fig. 4

ø 0.5

Case: DIL 24

Weight: 16 g

Safety and Installation Instructions

Table 7: Pin allocation

Installation Instruction

Installation of the DC-DC converters must strictly follow the

national safety regulations in compliance with the enclo-

sure, mounting, creepage, clearance, casualty, markings

and segregation requirements of the end-use application.

Single output unit

Dual output unit

Vi–

n.c.

Vo+

n.c.

Vo–

Vi+

COM

n.c.

Vo–

Vo+

n.c.

COM

Vi+

Connection to the system shall be made via a printed circuit

board according to: Mechanical Data.

The units should be connected to a secondary circuit.

Check for hazardous voltages before altering any connec-

tions.

Ensure that a unit failure (e.g. by an internal short-circuit)

does not result in a hazardous condition. See also: Safety

of operator accessible output circuit.

Vi+

Input Fuse

To prevent excessive current flowing through the input sup-

ply line in case of a short-circuit across the converter input

an external fuse should be installed in a non earthed input

supply line. We recommend a fast acting fuse F2A for

12 IMR 3 types, F1A for 24 IMR 3 types, F0.5A for 40 IMR 3

and 48 IMR 3 types.

Table 8: Electric strength test voltages, clearance and

creepage distances

Characteristic

Input to output

Unit

V_rms

V DC

Electric strength

test voltage 1 s

350

500

Coupling capacitance

≈45

Cleaning Agents

In order to avoid possible damage, any penetration of

cleaning fluids is to be prevented, since the power supplies

are not hermetically sealed.

Isulation resistance

at 500 V DC

>1000

M Ω

Protection Degree

The protection degree of the DC-DC converters is IP 40.

Edition 4/04.2001

5/6

Board Mountable

DC-DC Converters

IMR 3 Series

Safety of operator accessible output circuit

Standards and approvals

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

sible, it shall be an SELV circuit according to IEC/EN 60950

related safety standards

The units have been evaluated for:

• Building in

• Operational insulation input to output

• The use in a pollution degree 2 environment

• Connecting the input to a secondary circuit which is sub-

ject to a maximum transient rating of 500 V.

The following table shows some possible installation con-

figurations, 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 30 V.

Isolation

The electric strength test is performed as factory test in ac-

cordance with IEC/EN 60950 and UL 1950 and should not

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

guarantee claims resulting from electric strength field tests.

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 9: Insulation concept leading to an SELV output circuit

Conditions Front end

DC-DC converter

Result

Supply

voltage

Minimum required grade

of isolation, to be provided DC output status of the front end

by the AC-DC front end,

including mains supplied

battery charger

Maximum Minimum required safety

Measures to achieve the

specified safety status of the

output circuit

Safety status of

the DC-DC

converter output

circuit

voltage

output circuit

from the

front end ¹

Mains

≤250 V AC

Basic

≤60 V

Earthed SELV circuit ²

ELV circuit

Operational insulation, pro-

vided by the DC-DC converter

SELV circuit

Input fuse ³output suppressor Earthed SELV

diodes ⁴, and earthed

output circuit ²

circuit

>60 V

≤60 V

>60 V

Hazardous voltage

secondary circuit

Double or reinforced

SELV circuit

Operational insulation, pro-

vided by the DC-DC converter

SELV circuit

TNV-2 circuit

Earthed output circuit ²

Earthed SELV

SELV circuit

Double or reinforced insu- Input fuse ³and output

lated unearthed hazardous suppressor diodes ⁴

voltage secondary circuit ⁵

¹The front end output voltage should match the specified 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.

³The installer shall provide an approved fuse (type with the lowest rating suitable for the application) in a non-earthed input conductor

directly at the input of the DC-DC converter (see fig.: Schematic safety concept). For UL’s purpose, the fuse needs to be UL-listed.

40IMR3-1515-2 [BEL]

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