IMS7 Series Data Sheet, 7-Watt DC-DC Converters
Wide input voltage ranges up to 75 V DC
1 or 2 outputs up to 48 V DC
1500 V DC I/O electric strength test voltage
• RoHS lead solder exemption compliant
• Electrical isolation, single and double output units
• High efficiency (typ. 84%)
• Emissions below EN 55 022 level B
• Immunity to IEC/EN 61000-4-2, -3, -4, -5 and -6
10.5
0.42"
25.4
1.0"
• Inhibit input, output voltage adjustable
50.8
2.0"
• Flex power: Flexible load distribution
• No load and short-circuit proof
• Operating ambient temperature range –40...71°C
• High reliability and no derating
• 2" x 1" case with 10.5 mm profile
• Supplementary insulation
Safety according to IEC/EN 60950, UL 1950
LGA
Description
where the bus voltage may exceed the SELV limit of
60 VDC. They 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.
The IMS7 Series of board mountable 7 watt DC-DC
converters has been designed according to the latest
industry requirements and standards. The converters are
particularly suitable for use in industry or tele-
communications where variable input voltages or high
transient voltages are prevalent.
A special feature is their small case size, 2" x 1" with
10.5 mm profile.
Providing two wide input voltage ranges, 14 to 36 V DC and
36 to 75 VDC, models are available with single and
electrically isolated double outputs allowing the
configuration of output voltages from 3.3 up to 48 VDC
externally adjustable, with flexible load distribution on
double output units. An inhibit input allows remote
converter on/off.
The circuit comprises of integrated planar magnetics and
all components are automatically assembled and solidly
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 71°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
unsurpassed transient and surge protection, low output
ripple and noise, consistently high efficiency over the entire
input voltage range, high reliability as well as excellent
dynamic response to load and line changes.
The converters provide supplementary insulation with
SELV outputs as required in battery supported systems
Table of Contents
Page
Page
Description ....................................................................... 1
Type Survey and Key Data ............................................... 2
Type Key........................................................................... 2
Functional Description ..................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Auxiliary Functions ........................................................... 8
Electromagnetic Compatibility (EMC) ............................ 10
Immunity to Environmental Conditions........................... 11
Mechanical Data ............................................................ 12
Safety and Installation Instructions ................................ 13
Description of Options.................................................... 14
Accessories.................................................................... 14
APR 20, 2006 revised to JUN 05, 2006
Page 1 of 14
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