REV. JUN 09, 2004
1/14
15 Watt DC-DC Converters
IMS 15 Series
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
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. 86%)
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 –25...71C
Thermal protection
2"
× 1.6" case with 10.5 mm profile
Supplementary insulation
Table of Contents
Page
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key and Product Marking ........................................ 2
Functional Description ...................................................... 3
Electrical Input Data ......................................................... 4
Electrical Ouput Data ....................................................... 5
Page
Auxiliary Functions ........................................................... 8
Electromagnetic Compatibility (EMC) .............................. 9
Immunity to Environmental Conditions ........................... 10
Mechanical Data ............................................................ 11
Safety and Installation Instructions ................................ 12
Description of Option ..................................................... 14
Summary
The IMS 15 series of board mountable 15 Watt DC-DC con-
verters has been designed according to the latest industry
requirements and standards. The converters are particu-
larly suitable for applications in industry and telecommuni-
cations where variable input voltages or high transient
voltages are prevalent.
Providing two wide input voltage ranges, 14...36 V DC and
36...75 V DC, the units are available with single, dual and
electrically isolated double outputs allowing the configura-
tion of output voltages from 3.3 up to 48 V DC externally ad-
justable, with flexible load distribution on dual and double
output units. A shut down input allows remote converter on/
off. Features include efficient input and output filtering with
unsurpassed transient and surge protection, low output rip-
ple and noise, consistently high efficiency over the entire
input voltage range, high reliability as well as excellent dy-
namic response to load and line changes.
The converters provide supplementary insulation with
SELV outputs as e.g. required in battery supported systems
where the bus voltage may exceed the SELV limit of
60 V DC. They are designed, built and approved according
to the international safety standards IEC/EN 60950, UL
1950, CAN/CSA C22.2 No.950-95.
The circuit comprises of integrated planar magnetics and
all components are automatically assembled and solidly
soldered onto a single PCB without any wire connections.
The proprietary magnetic feedback solution ensures maxi-
mum 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 environ-
ments the case has holes for screw mounting.
Safety according to IEC/EN 60950, UL 1950
51
2.0"
40.6
1.6"
10.5
0.42"
LGA