Rugged Environment
DC-DC Converters <40 Watt
IMX/IMY 15 Series
15 Watt DC-DC Converters
IMX 15 Series
IMY 15 Series
Input to output electric strength test up to 4 kV DC
Input voltage: 8.4...36, 16.8...75, 50...150 V DC
Single, dual and double outputs
Configurable output voltages from 3.3 to 48 V DC
• Extremely wide input voltage ranges
• Electrical isolation, also between outputs
• Emissions below EN 55022, level B
• Immunity to IEC/EN 61000-4-2,-3,-4,-5 and -6
• High efficiency (typ. 87%)
10.5
0.42"
40.6
1.5"
51
2.0"
• Input undervoltage lock-out
• Shut down input, output voltages adjustable
• Flex power: Flexible load distribution on outputs
• Outputs no-load, overload and short-circuit proof
• Operating ambient temperature up to –40...85°C
• Thermal protection
• 2" × 1.6" case with 10.5 mm profile
• Supplementary insulation: 20/40 IMX 15 types
• Double or reinforced insulation: 110 IMY 15 types
Safety according to IEC/EN 60950, UL 1950
LGA
1
Approvals pending
1 For 110 IMY 15 types
Summary
40 IMX 15 types provide SELV outputs even if the bus volt-
age at the converter input exceeds the SELV-limit of
60 V DC. The 110 IMY 15 types provide double insulation
and are CE marked. They may be connected to e.g. a recti-
fied 110 V AC source without any further isolation barrier.
The IMX 15 and IMY 15 series of board mountable 15 Watt
DC-DC converters has been designed according to the lat-
est industry requirements and standards. The converters
are particularly suitable for use in mobile or stationary appli-
cations in transport, railways, industry, or telecommunica-
tion where variable input voltages or high transient voltages
are prevalent.
The circuit comprises of integrated planar magnetics and
all components are automatically assembled and solidly
soldered onto a single PCB without any wire connection.
Magnetic feedback ensures maximum reliability and re-
peatability in the control loop over all operating conditions.
Careful considerations 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 71°C in free air without using any potting material. For
extremely high vibration environments the case has holes
for screw mounting. Various options as e.g. extended tem-
perature range –40...85°C or an alternative pinout provide
a high level of application specific engineering and design-
in flexibility.
Covering a total input voltage range from 8.4 up to 150 V
with 3 different types, the units are available with single,
dual and electrically isolated double outputs from 3.3 up to
48 V externally adjustable, with flexible load distribution on
dual and double output units. A shut down input allows re-
mote converter on-off. Features include consistently high
efficiency over the entire input voltage range, high reliability
and excellent dynamic response 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 20 IMX 15 and 40 IMX 15 types provide sup-
plementary insulation. Connected to a secondary circuit the
Table of Contents
Page
Page
Auxilliary Functions ........................................................ 10
Electromagnetic Compatibility (EMC) ............................ 11
Immunity to Environmental Conditions........................... 12
Mechanical Data ............................................................ 13
Safety and Installation Instructions ................................ 14
Description of Option...................................................... 16
Summary.......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key and Product Marking ........................................ 2
Functional Description...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Edition 6/7.99
1/16
MELCHER
The Power Partners.
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