Murata Power Solutions Expands Offering of Next Generation Half-Brick DC-DCs
Murata Power Solutions has added two new ranges of single output, half-brick, isolated dc-dc converters to its product portfolio. The HPH series is a family of ultra-high output converters with different models capable of delivering up to 360W of power and 70A output current. The UCH series comprises modules that deliver between 50 and 150W of output power and a maximum output current of 40A.
Both the HPH and UCH series are isolated to 2250Vdc with an open-frame construction and are designed for PCB mounting. Both series are in compliance with RoHS legislation, and have UL60950-1 and EN60950-1 safety approvals.
HPH dc-dc converters offer a choice of fully regulated single outputs ranging from 3.3 to 12Vdc. A wide input voltage range of 36 to 75Vdc, combined with an industry standard pinout and package measuring 61 x 58.4 x 10.2mm, simplifies the use of the modules in low voltage / high current OEM applications. The new converters utilize a full-bridge, fixed-frequency topology along with synchronous output rectification that enables levels of efficiency up to 91% to be achieved. Operating temperature range is -40 to +85°C. An optional baseplate further enhances thermal performance.
The UCH series is offered with outputs from 2.5 to 15Vdc and a choice of either 36 to 75Vdc or 18 to 36Vdc input voltages. Module footprint and installed height are identical to the HPH series. UCH series dc-dc converters are well suited for demanding telecom, datacom and networking applications with their semi-synchronous rectifier design helping them achieve industry-leading efficiency levels of up to 92%. The standard operating temperature range for the UCH family is -40 to +85°C. By using an optional baseplate, the thermal performance can be further improved.
Remote sense, output trim and primary side on/off control with either positive or negative logic are included in the design of both new product series. The design of both series provides short circuit protection and thermal shutdown, plus input under-voltage and input/output over-voltage protection.
