IMX4 Series Data Sheet

4 Watt DC-DC Converters

BCD20006-G Rev AE, 16-Sep-2015

Page 1 of 12

MELCHER

The Power Partners.

Description

The IMX4 Series of board-mountable 4-watt DC-DC converters

has

been

designed

according

to

the

latest

industry

requirements and standards. The converters are particularly

suitable for use in mobile or stationary applications in trans-

port, industry, or telecom, where variable input voltages or high

transient voltages are prevalent.

Covering a total input voltage range from 8.4 VDC up to

121 VDC with three different models, the converters are

available with single or dual output from 3.3 up to ±24 VDC

with flexible load distribution. Features include efficient input

and output filtering with unsurpassed transient and surge

protection, low output ripple and noise, consistently high

efficiency over the entire input voltage range and high

reliability as well as excellent dynamic response to load and

line changes.

The converters exhibit basic insulation and are designed and

built according to the international safety standards IEC/EN

A special feature is their small case size, DIL 24 with only

8.5 mm profile. The circuit is comprised of integrated planar

magnetics, and all components are automatically assembled

and solidly soldered onto a single PCB without any wire

connection. Thanks to the rigid mechanical design, the

converters withstand an extremely high level of shock and

vibrations. Careful consideration of possible thermal stresses

ensure the absence of hot spots providing long life in

environments where temperature cycles are a reality. The

thermal design allows operation at full load up to an ambient

temperature of 85 °C in free air without using any potting

material.

Several options, such as open-frame or an alternative industrial

pinout, provide a high level of application-specific engineering

and design-in flexibility.

32

1.25"

20

0.8"

8.5

0.34"

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

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

Functional Description ........................................................... 3

Electrical Input Data ............................................................... 4

Electrical Output Data ............................................................ 6

Electromagnetic Compatibility (EMC) .................................... 8

Mechanical Data .................................................................... 9

Immunity to Environmental Conditions ................................ 10

Safety and Installation Instructions ...................................... 10

Description of Options ......................................................... 11

Table of Contents

Page

Page

Features

• RoHS lead-free-solder and lead-solder-exempted

products are available.

• Input voltage ranges up to 121 VDC

• Voltage withstand test 1500 VAC

• 1 or 2 isolated outputs up to 48 V

• Extremely wide input voltage ranges

• Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6

• High efficiency (typ. 83%)

• Flexible load distribution on outputs

• Outputs no-load, overload, and short-circuit proof

• High reliability

• Operating ambient temperature – 40 to +85 °C

• Thermal protection

• Industrial and alternative pinout

• DIL 24 case with 8.5 mm profile

2

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