The BMR491 is the sixth generation of our digitally controlled Advanced Bus Converter packaged in a quarter-brick format. There are three versions, with input voltage ranges of 40 to 60V and 48 to 60 V, which meet the typical voltage requirements used in a data center environment. Each device delivers a nominal output voltage of 12 V.
Two initial versions have a continuous output power of 1300 W, and the 48-60 V input variant of that can deliver a peak power level of up to 1850 W for <1 second. This version of the BMR491 has a typical efficiency of up to 97.6% at 48Vin / 50% load.
The third version has a continuous output power of 1540 W, and can deliver a peak power level of up to 2450 W for <1 second. This version of the BMR491 has a typical efficiency of up to 97.5% at 48Vin / 50% load.
The BMR491 series has an operating temperature range from -40°C up to +125°C and has a mean time between failure (MTBF) of over 7 million hours.
