Stockholm, SwededDesigned 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.
The PKM5000D is suitable for a wide range of ICT equipment, which is mainly powered by 48V. However, Ericsson designed its latest quarter-brick, isolated DC/DC converter to also fit into common radio applications, which use 24V batteries. As a result, the PKM5000D enables designers to use the same DC/DC converter in both 24V and 48V systems. It is also capable of powering remote-feeding applications that use 20V to 60V line voltages with an operational margin to ensure that remote systems will operate at any source voltage level.
When designers are upgrading existing 48V or 24V boards to match single-code boards to cover both system voltages, the PKM5000D can replace 2:1 input DC/DC converters and accommodate both voltages in one single-code module without redesign.
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.
The PKM5000D delivers 120W, and offers a half-load efficiency figure of 91.8 percent at 27V input voltage and 89 percent at 53V input voltage.
By using external resistors, the converter's output voltage can be adjusted in the range of 10.8V to 13.2V, and the standard product is delivered with a remote-control that complies with negative logic, with positive logic available as an option.
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, issue 1, black box technique, it offers a MTBF figure of 1.47 million hours. It is compliant with the RoHS directive 2002/95/EC.
Pricing: In OEM quantities, $32.10 each.
Datasheet: Click here.