Board Mountable
DC-DC Converters
IMY 35 Series
35 Watt DC-DC Converters
IMY 35 Series
Input to output electric strength test up to 2.5 kV DC
Input voltage: 60...150 V DC
2, 3 and 4 outputs
Configurable output voltages from 5 to 60 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
• Programmable input undervoltage lock-out
• Shut down input
10.5
0.41"
63.5
76.2
2.5"
3"
• Output voltages adjustable with flexible load distribu-
tion
• 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 open
frame
• Double or reinforced insulation
8.9
0.35"
47.8
1.88"
72.8
2.87"
Safety according to IEC/EN 60950, UL 1950
LGA
Approvals pending
Summary
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 at full load up to an ambient temperature of 71°C in free
air. For extremely high vibration environments the case has
holes for screw mounting. Various options as e.g. extended
temperature range –40...85°C or an alternative pinout pro-
vide a high level of application specific engineering and de-
sign-in flexibility.
The IMY 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.
With a total input voltage range from 60...150 V, the units
are available with double and quadruple outputs, electri-
cally isolated, from 5 V up to 60 V externally adjustable and
with flexible load distribution. 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.
Table of Contents
Page
Page
Auxiliary Functions ........................................................... 9
Electromagnetic Compatibility (EMC) ............................ 10
Immunity to Environmental Conditions .......................... 11
Mechanical Data ............................................................ 12
Safety and Installation Instructions ................................ 13
Description of Option ..................................................... 15
Summary .......................................................................... 1
Type Survey and Key Data .............................................. 2
Type Key .......................................................................... 2
Functional Description ..................................................... 3
Electrical Input Data ......................................................... 4
Electrical Output Data ...................................................... 6
Edition 2/5.2000
1/15