Flex Power Modules extends BMR491 range up to 2,450W
Flex Power Modules has expanded its BMR491 range of digital, quarter-brick DC/DC converters with the addition of the BMR4912307/856 and the BMR4913208/857. Power ratings now available are 1,400W continuous / 2,400W peak (BMR4912307/856) and 1,540W continuous / 2,450W peak (BMR4913208/857).
Both feature the Flex Power Modules’ Hybrid Regulated Ratio (HRR) technique where output voltages vary in a ratio to the input voltage but not with load current, to optimise efficiency and EMI filtering, said the company. The modules can switch between HRR mode and full output regulation at a pre-set input voltage, to limit total variation of output voltage. Both the BMR4912307/856 and the BMR4913208/857 have improved efficiency of up to 97.5 per cent at 50 per cent load. Output voltages are centred around 12V for input ranges that include 48 to 56V and 40 to 60V for data centre applications.
The BMR4912307/856 variant has a reduced height of 13.4mm, making it particularly suitable for space-constrained applications. Both variants include an event data recorder function, or ‘black box’, which captures key date-stamped operational parameters during a shutdown event for easy fault tracing and failure analysis.
All BMR491 modules feature an operational temperature range of -40 to +125 degrees C and 1,500 V I/O basic isolation complying with IEC / EN / UL 62368-1. They also have protection against over-temperature, input under-voltage and output over-voltage, over-current and short circuits.
The DC/DC converters have a four-pin PMBus digital interface and are supported by Flex Power Designer software for remote configuration, control and monitoring.
All variants are available in OEM quantities.
Flex Power Modules is a business line of Flex and manufactures scalable DC/DC power converters primarily serving the data processing, communications, industrial and transportation markets. Offering a wide range of both isolated and non-isolated solutions, its digitally-enabled DC/DC converters include PMBus-compatibility supported by Flex Power Designer.
