IMX7, IMS7 Series Data Sheet
7-Watt DC-DC Converters
Features
• RoHS lead-free-solder and lead-solder-exempted
products are available.
• Input voltage ranges up to 150 VDC
• 1 or 2 isolated outputs up to 48 V
• 1500 to 2000 VAC voltage withstand test
• Extremely wide input voltage ranges
• Immunity according to IEC/EN 61000-4-2, -3, -4, -5, -6
• High efficiency (typ. 84%)
10.5
0.42"
25.4
1.0"
50.8
2.0"
• Input undervoltage lockout
• Inhibit input, adjustable output voltages
• Flex power: flexible load distribution on outputs
• Outputs no-load, overload, and short-circuit proof
• High reliability and no derating
• Operating ambient temperature –40 to +85 °C
• Thermal protection
• Supplementary insulation
• Planar technology for best mechanical stability
• 2” × 1” case with 10.5 mm profile
Description
The IMX7/IMS7 Series of board-mountable 7 Watt DC-DC
converters have been designed according to the latest
industry requirements and standards. The converters are
particularly suitable for use in mobile or stationary applications
in transport, railways, industry, or telecom, where variable
input voltages or high transient voltages are prevalent.
Safety-approved to IEC 60950-1 and UL/CSA 60950-1
2nd Ed.
1
1 70/110IMX7 models
Covering a total input voltage range from 8.4 V to 150 V with
six different models, the converters are available with single
and electrically-isolated double outputs from 3.3 up to 48 V
with flexible load distribution on double outputs. A shutdown
input allows remote on/off.
The circuitry is comprised of integral planar magnetics. All
components are automatically assembled and securely
soldered onto a single PCB without any wire connections.
Magnetic feedback ensures maximum reliability and
repeatability 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 85 °C in
free air without using any potting material. For extremely high
vibration environments the case has holes for screw mounting.
Features include efficient input and output filtering with good
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 provide supplementary insulation with SELV
outputs as for instances required in battery-supported
systems, where the bus voltage may exceed the SELV limit of
60 V. The models 70IMX7 and 110IMX7 are CE-marked.
Several options, such as open-frame, provide a high level of
application-specific engineering and design-in flexibility.
Table of Contents
Page
Page
Electromagnetic Compatibility (EMC) .................................. 11
Immunity to Environmental Conditions ................................ 12
Mechanical Data .................................................................. 13
Safety and Installation Instructions ...................................... 13
Description of Options ......................................................... 14
Description ............................................................................. 1
Model Selection ..................................................................... 2
Functional Description ........................................................... 3
Electrical Input Data............................................................... 4
Electrical Output Data ............................................................ 7
Auxiliary Functions ................................................................. 9
Copyright © 2015, Bel Power Solutions Inc. All rights reserved.
MELCHER
The Power Partners.
BCD20007-G Rev AF, 31-Jul-2015
Page 1 of 14