Brick dc/dc converters simplify implementation of board-level distributed power architectures
(Product News, 27 Feb 2008 )
The Bel Power division of Bel Fuse Inc. has announced the 0RQB-C0U Series of open-frame isolated DC-DC converters has joined the Company’s broad offering of RoHS-compliant isolated and non-isolated power DC-DC converters for high-speed networking, telecommunications, and computing applications. Housed in the industry standard ¼ brick (2.28” L x 1.45” W) package, the low-cost series provides up to 100W of output power from a nominal 48V input. Notably featuring a 4-to-1 input voltage range to accommodate both a 24V and 48V standard input voltage in the same module, it is moreover engineered with built-in input and output filtering to further minimize part counts. The highly reliable devices operate at efficiencies up to 91% over an ultra wide range of output voltages extending from 1.2V to 12V.
Bel’s newest UL/cUL 60950-1 approved series may be confidently specified for employment in a broad array of distributed power architecture applications where space is limited, and overall weight is a factor. Among the most common uses for these high power density parts are in wireless networks, optical and access networks, as well as in industrial networks and equipment. Additionally, their open-frame construction makes them ideally suited for convection-cooled environments.
The isolated DC-DC converters offer a full complement of control and protection features that include differential remote on/off, positive/negative remote sense, input over-/under-voltage lockout, and over-temperature protection. Parts also offer output voltage trim, current limit, and short circuit protection. These devices switch at a fixed frequency (285 kHz) and have an operating temperature range of -40 to +85 degrees C.
