ERICSSON Announces BMR454 Series Eighth Brick Power Module

Optimized for 5V intermediate bus voltages and other applications requiring a tightly regulated 5V supply, Ericsson Power Modules’ BMR454 0002/004 is the latest variant of the 3E world’s first digitally controlled, PMBus compliant, BMR454 DC/DC module that was launched last year. The BMR454 0002/004 has a typical efficiency of 94% at 50% load and 93.5% at 100% load. The BMR454 0002/004’s flat efficiency curve reduces power losses to an absolute minimum, making it possible to pack as much power into an eight-brick format, as would normally only be possible in a quarter-brick module. The PMBus interface makes it possible to monitor and control DC/DC converter parameters, and to forward operational information such as output-voltage and current, power-status, temperature and many other parameters making it possible for system architects to integrate the converters into their global energy management monitoring systems and optimize energy consumption down to single board level. Ericsson’s BMR454 0002/004 delivers 38A at 5V, or a maximum output power of 190W across its operational range of 36V to 75V. To minimize power losses at application level, through the PMBus the output voltage can be dynamically widely adjusted in the range of 3.0 to 6.7V, accommodating intermediate bus voltages to the most optimized condition required by point-of-load, or FPGA, ASIC and others, without unwanted energy losses in the conversion process…

BMR454 Power Module
(Photo: ERICSSON)