DC-DC converters offer ultimate flexibility with an ultra-wide 12:1 input range

XP Power has released two new series of baseplate-cooled DC-DC brick converters with power ratings of 150W and 200W. The new RDF series modules include an ultra-wide input voltage (nominally 72VDC) that covers 14-160VDC. These new modules are intended for applications that rely on multiple power sources or a single source with wide voltage variation, such as renewable energy, battery systems, industrial technology, and railway applications.

Housed in a compact half-brick package measuring just 61mm x 57.9mm x 12.7mm (2.4” x 2.28” x 0.5”), the modules are ideal for use in modern space-constrained applications. The integrated baseplate allows for various cooling options for effective thermal management and, therefore, elevated reliability levels.

The voltages available in railway applications vary globally, often needing different power designs to suit each geography. However, the 12:1 ultra-wide input range eradicates this challenge, enabling designs to be deployed globally without revision to the power stages. The design process for railway usage is further eased as all RDF modules fully meet the requirements of the EN50155 transportation standard.

The RDF150 (150W) and RDF200 (200W) series provide a choice of single 12V, 15V, 24V and 48V outputs, with the RDF150 also including a 5V option. A remote sense is included for applications where the load is some distance from the power module, and a voltage trim feature is included. At -20%/+15%, the trim is wider than many modules currently available on the market.

Efficiency levels are up to 91%, and the units provide a remote on/off feature that consumes just 15mA when in standby/inhibit mode. Alongside their EN50155 approval, the devices are also approved to EN50121-3-2 and EN61000-4-x for EMC and UL62368-1 for ITE use.

The RDF modules are targeted for use in rugged environments. They can operate at temperatures from -40C to +100C, and overvoltage, overload, and short circuit protection are included as standard.