2010-08-19

Ericsson´s ultra wide input range Power Module simplifies Power Radio Applications

• Radio base station equipment design is simplified
• Single product powers systems from 18V to 75V, reducing inventory while   increasing flexibility and reducing cost
• Versatile - also suitable for industrial applications

Designed for systems powered by 24V or 48V batteries, Ericsson Power Modules’ PKM5000D is a quarter-brick, isolated DC/DC converter that is optimized to deliver the highest efficiency across an ultra wide input voltage range of 18V to 75V. It is suitable for a very large range of applications in ICT, offering systems’ designers the opportunity to use the same DC/DC converter for use in 24V and 48V systems, also to power remote-feeding applications that utilise 20V to 60V line voltages with an operational margin to ensure that remote systems will always operate whatever the source voltage status is.

The series’ ultra-wide input range of 4:1 is primarily for use in radio-base stations equipment but not limited to. The PKM5000D is a very flexible product that is very suitable to power industrial applications using remote peripheral equipments powered through long-wires, very similar to remote feeding traditionally used in radio-base stations. Because of its performance and features, the PKM5000D is also suitable for applications such as transportation, test-equipment, process-control and others.

The designer’s task is greatly simplified when designing multi-bus voltage boards that could be used in different applications powered by 24V and/or 48V batteries, thus simplifying inventory management and reducing cost. The first variant released in the series is a 12V tightly regulated converter with an output current of 10A. More variants will soon be offered as the series rolls out.

At 120W, the PKM5000D offer a massive 20 percent more power than current similar products available on the market. Further, with a half-load efficiency figure of 91.8 percent at 27V input voltage and 89 percent at 53V input voltage, the converter is very well positioned in the marketplace for ultra-wide input range products.

By the simple process of using external resistors, the converter’s output voltage can be adjusted in the range of 10.8V to 13.2V.

Protection levels include over temperature (OTP), over current limit (OCP) and over voltage (OVP). For safety the PKM5000D has a galvanic input to output isolation of 1500V and according to Telcordia SR332, it offers an excellent MTBF figure of 1.47 million hours. It is compliant with the RoHS directive 2002/95/EC.

Your Contact:

Wiho Herkenhoff 
Phone: +49 (0) 5424 2340-30
Email: wherkenhoff@mev-elektronik.com