
Board Mountable
DC-DC Converters
IMX 4 Series
Edition 6/4.2000
1/14
4 Watt DC-DC Converters
IMX 4 Series
Input voltage ranges up to 121 V DC
1 or 2 outputs up to 48 V DC
Up to 2000 V DC I/O electric strength test
Extremely wide input voltage ranges
Electrical isolation, single and dual outputs
Immunity to IEC/EN 61000-4-2, -3, -4, -5 and -6
High efficiency (typ. 82%)
Flex power: flexible load distribution
No load and short-circuit proof
High reliability and no derating
Operating ambient temperature –40...+85
°C
Industrial, alternative and SMD pinout
DIL 24 case with 8.5 mm profile
Safety according to IEC/EN 60950, UL 1950
1
1 For 70 IMX 4 types
Summary
The IMX 4 series of board mountable 4 Watt DC-DC con-
verters has been designed according to the latest industry
requirements and standards. The converters are particu-
larly suitable for use in mobile or stationary applications in
transport, industry or telecommunications where variable
input voltages or high transient voltages are prevalent.
Covering a total input voltage range from 4.7 V DC up to
121 V DC with four different types the units are available
with single and dual outputs from 3.3 up to
±24 V DC with
flexible load distribution on dual outputs. Features include
efficient input and output filtering with unsurpassed tran-
sient and surge protection, low output ripple and noise, con-
high reliability as well as excellent dynamic response to
load and line changes.
The converters are designed and built according to the
international safety standards IEC/EN 60950, UL 1950,
CAN/CSA C22.2 No.950-95 and are LGA and UL marked.
70 IMX 4 types have supplementary insulation and are CE
marked.
A special feature is their small case size, DIL 24 with only
8.5 mm profile. The circuit comprises integrated planar
magnetics and all components are automatically assem-
bled and solidly soldered onto a single PCB without any
wire connections. Thanks to the rigid mechanical design the
units withstand an extremely high level of shock and vibra-
tions. Careful considerations of possible thermal stresses
ensure the absence of hot spots providing long life in envi-
ronments where temperature cycles are a reality. The ther-
mal design allows operation at full load up to an ambient
temperature of 85
°C in free air without using any potting
material.
Various options as e.g. extended temperature range
–40...85
°C, SMD pinout or K-pinout, an alternative to the
standard industrial pinout, provide a high level of applica-
tion specific engineering and design-in flexibility.
Table of Contents
Page
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description ...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Page
Electromagnetic Compatibility (EMC) .............................. 8
Mechanical Data ............................................................ 10
Immunity to Environmental Conditions ........................... 11
Safety and Installation Instructions ................................ 12
Description of Options .................................................... 14
32
1.25"
20
0.8"
8.5
0.34"
LGA