Board Mountable
DC-DC Converters
IMX 35 Series
35 Watt DC-DC Converters
IMX 35 Series
Wide input voltage ranges up to 75 V DC
2...4 isolated outputs up to 60 V DC
1500 V DC I/O electric strength test voltage
• Immunity to IEC/EN 61000-4-2,-3,-4,-5 and -6
• Programmable input undervoltage lock-out
• Shut down input
• Output voltages adjustable with flexible load
distribution
10.5
0.41"
63.5
2.5"
76.2
3"
• Frequency synchronisation
• Outputs no-load, overload and short-circuit proof
• Operating ambient temperature up to –40...85°C
• Thermal protection
• 3" × 2,5" case with 10.5 mm profile
or 8.9 mm profile open frame
• Supplementary insulation
Safety according to IEC/EN 60950, UL 1950
LGA
Approvals pending
8.9
0.35"
47.8
1.88"
72.8
2.87"
Summary
The IMX 35 series of board mountable 35 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, railways, industry, or telecommunication where
variable input voltages or high transient voltages are preva-
lent.
tion. Connected to a secondary circuit the 40 IMX 35 types
feature SELV outputs even if the voltage at the converter in-
put exceeds the SELV-limit of 60 V DC.
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 up to an ambient temperature of –40...85°C in free air.
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 flexibility.
Covering a total input voltage range from 9 up to 75 V with
2 different types. The units are available with double, triple
and quad outputs, electrically isolated, from 3.3 V up to 60
V 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 supplementary insula-
Table of Contents
Page
Page
Auxiliary Functions ......................................................... 11
Electromagnetic Compatibility (EMC) ............................ 13
Immunity to Environmental Conditions........................... 14
Mechanical Data ............................................................ 15
Safety and Installation Instructions ................................ 16
Description of Option...................................................... 18
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 3
Functional Description...................................................... 4
Electrical Input Data ......................................................... 6
Electrical Output Data ...................................................... 8
Edition 5/08.2001 R1
1/18