1/8th-brick DC/DC converters output up to 40A
The PKB4211D and PKB4110D deliver respective efficiencies of up to 95.3% and 94.7%, with tightly regulated 5V and 3.3V outputs at 50% load. With input range from 36V to 75V, the PKB4211D delivers up to 200W output power with a 5V, 40A output, and the PKB4110D provides up to 132W with a 3.3V, 40A output. Both are available in a standard DOSA-compatible five-pin eighth-brick footprint with dimensions of 58.4 x 22.7 mm and height of 9.6 mm. The modules target high-end and high-power applications that are powered by multi-cell batteries or rectifiers, and distributed power architecture systems
A feature of the PKB4000 series is its ability to deliver higher usable power in high ambient temperatures and environments with limited airflow. The PKB4211D can deliver full power of 5V at 40A in an ambient temperature of 70°C with 200 LFM (linear feet per minute) airflow in an open-frame unit with no baseplate. The module can also deliver the same load in an ambient temperature of 80°C with 200 LFM airflow with optional heatsink.
The open-frame version of the PKB4110D provides full power, delivering a 3.3V 40A output at 80°C with 200 LFM airflow and at 85°C with 200 LFM airflow with a baseplate. While use of the modules’ optional baseplate offers improved thermal performance, the units can also be connected to a heatsink or cold plate. They have a calculated MTBF (mean time before failure) of 9.33 million hours, and meet safety requirements according to IEC/EN/UL 60950-1, with input/output isolation of 2250V DC.
Ericsson Power Modules; www.ericsson.com/powermodules
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
