The idea is that the modules in the PKD 4000 series should meet growing environmental concerns as well as forthcoming legislative requirements for lead-free soldering. The PKD 4210 SI features 48V input and 3.3V output at 8A.
The module is only 7.5mm high with a footprint of 46x50mm, and it weighs only 20g. According to Ericsson, the module is the first DC/DC power module in the 27W power range to be produced in a surface mount package and to feature new, patented mechanical design that allows high temperature re-flow soldering.
Furthermore, the electrical design is based on synchronous rectification, which results in high efficiency, typically over 89 per cent. The modules in the 4000 series have a mean time between failures greater than 200 years at 75 C case temperature. The input/output isolation is 1,500V direct current. Further modules in the series will be launched in the near future.
Gittan Cedervall