AUG 13, 2002
Rev 1.0
Page 1 of 15
www.power-one.com
IMX35 Series: 35W DC-DC Converters
Product Specifications
9-36V, 18-75V, 40-121V & 60-150V Inputs
Aug 2002
Dual/Triple/Quad Outputs 3.3V, 5V, 12V & 15V
Wide input voltage ranges up to 150 V DC
2...4 outputs up to 60 V DC
1500 V DC I/O electric strength test voltage
Extremely wide input voltage ranges
Electrical isolation I/O, also between outputs
Emissions below EN 55022, level B
Immunity to IEC/EN 61000-4-2,-3,-4,-5 and -6
Programmable input undervoltage lock-out
Shut down/inhibit input
Output voltages adjustable with flexible load
distribution
Frequency synchronisation
Outputs no-load, overload and short-circuit proof
Operating ambient temperature from –40...110°C
Thermal protection
3" x 2.5" case with 10.5 mm profile or 8.9 mm open
frame
Basic insulation
Flexible output possibilities between 3.3 V & 60 V
Summary
The IMX 35 series of board mountable 35 Watt DC-DC con-
verters has been designed according to industry require-
ments and standards. The converters are particularly suit-
able for use in mobile or stationary applications in trans-
port, railways, industry, or telecommunication where vari-
able input voltages or high transient voltages are prevalent.
Covering a total input voltage range from 9 V up to 150 V
with 4 different types. The units are available with up to
quadruple outputs (electrically isolated) from 3.3 V up to
60V externally adjustable and with flexible load distribution.
A shut down input allows remote converter on/off. Features
include consistently high efficiency over the entire input
voltage range, high reliability and excellent dynamic re-
sponse to load and line changes.
The converters are designed and built according to the in-
ternational safety standards IEC/EN 60950, UL 1950, CAN/
CSA C22.2 No.950-95. LGA, UL and cUL approvals are in
progress. The IMX 35 types provide basic insulation.
The circuit comprises of two planar magnetics devices and
all components are automatically assembled and solidly
soldered onto a single PCB without any wire connection.
Magnetic feedback ensures maximum reliability and
repeatability in the control loop over all operating condi-
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 without using any potting material allows opera-
tion at full load up to an ambient temperature of 71°C in
free air, operation to 110°C with airflow. For extremely high
vibration environments the case has holes for screw
mounting. Inhibit or open frame mounting provide a high
level of application specific engineering and design-in flex-
ibility.
Safety according to IEC/EN 60950, UL 1950
Approvals pending
LGA
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
Auxiliary Functions ........................................................... 9
Electromagnetic Compatibility (EMC) ............................ 11
Immunity to Environmental Conditions .......................... 12
Mechanical Data ............................................................ 13
Safety and Installation Instructions ................................ 14
Description of Option ..................................................... 15
76.2
3"
63.5
2.5"
10.5
0.41"
72.8
2.87"
47.8
1.88"
8.9
0.35"