Surface-mount advanced bus converter saves board space and improves robustness
Advanced firmware integrated in the BMR456-SI contributes towards reduction in energy consumption. The device delivers a tightly regulated output voltage (±2%) across the full operational range of 36 V to 75 V. The device offers output power up to 468 W for datacom applications.
The BMR456-SI is based upon the FRIDA II platform, which was announced last year, both the surface-mount BMR456-SI and the through-hole BMR456-PI quarter-brick 3E Advanced Bus Converters deliver unprecedented performance to system architects that are developing equipment for ICT (Information and Communication Technology) applications. The applications require fast response time, tightly regulated intermediate bus voltages and high efficiency at any point of operation to reduce power consumption.
Ericsson’s advanced mechanical surface-mount technology is based on highly accurately tooled pins that are inserted and aligned during the original assembly process. The same hardware is used for through-hole and surface-mount versions of the BMR456, which increases the flexibility and speed of manufacturing and contributes to smaller lead times. The surface-mount pins are manufactured with very tight tolerances, guaranteeing co-planarity and mechanical accuracy. This process ensures high reliability and host equipment availability.
In addition to input and output power connections, additional I/O (+/– output remote sense, address pin, PMBus clock and data, power good and user configurable I/O, PMBus ground, PMBus alert signal and PMBus remote control or current sharing) is made available through a micro-interface. This connector has been designed to comply with Ericsson’s advanced high-precision surface-mount technology and to guarantee full alignment and co-planarity during different soldering processes.
Designed to power telecom and datacom applications, the BRM456-SI is available in two input voltages ranges: 36 V to 75 V (telecom), delivering output power of 420 W; and 40 V to 60 V (datacom), delivering output power up to 468 W. Output voltage can be adjusted across a range from 4.0 V to 13.2 V via PMBus commands, making the module suitable for Dynamic Bus Voltage operation resulting in the reduction of energy consumption when communication data traffic is low.
In addition, taking full advantage of a highly optimized layout and firmware-optimized parameter switching to reduce power losses, the BMR456-SI delivers a typical efficiency of 96.5% and exhibits flat curve behavior from 14% to 100% load, positioning the product as the most efficient Advanced Bus Converter in its category.
The BMR456-SI meets the insulation requirements of EN60950, sustains an I/O isolation voltage of 2250 VDC, and also offers an extensive set of capabilities and features such as: remote sensing; PMBus-configurable protection (over-temperature, over-current and over-voltage); configurable start/stop; precision delay ramp-up; voltage margining; configurable fault response; power good; and extensive power management programmability.
Visit Ericsson Power Modules at www.ericsson.com/powermodules
If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :
