Cherokee Announces New Pricing and Full Range of Bus Converter Products for Datacom Applications

Cherokee International announced new prices and a full range of CBE eighth-brick and CBQ quarter-brick dc-dc, non-isolated, intermediate bus converters for datacom applications. The converters are suitable for powering the myriad of non-isolated point of load (POL) converters downstream in distributed power architectures. Cherokee’s converters are said to be designed specifically to overcome many of the board-level power distribution issues of today’s high-functionality silicon ICs used in server and storage applications, enterprise networks, central office, telecom, and networking equipment.

The new pricing levels and ultra-high efficiencies are claimed to make the bus converters cost-effective solutions that take advantage of the benefits of 48V systems, which have lower I2R losses – translating into higher system level efficiencies and ultimately lower total cost of ownership. These converters are also said to function well with today’s POLs and discrete circuit designs to power current and future chip sets. In addition, these converters operate as smart dc transformers that run open loop, providing a balance in maximizing efficiency and output current while minimizing the component count for an economical solution.

The converters meet basic insulation requirements of EN60950 and come complete with vital industry standard features such as remote on/off, over-temperature protection, output over-current and over-voltage protection, and input under-voltage protection. Other features include 1500Vdc input to output isolation, no minimum load requirements, constant frequency operation for predictable EMI characteristics, low ripple and noise, and auto restart after fault shutdown. Most converters are offered in both open frame and base plate versions.

The new pricing is as follows: the CBE Series – 42-53Vdc input, 12V out, 14A quasi-regulated, isolated dc-dc converter, standard 1/8 brick footprint, standard 1/4 brick pin-out, 94% typical efficiency, high power density of 197W per cubic inch, $24 for OEM quantities; the CBQ Series – 42-53Vdc input, 12V out, 25A quasi-regulated, isolated dc-dc converter, standard 1/4 brick footprint, standard 1/4 brick pin-out, 94% typical efficiency, high power density of 210W per cubic inch, $29 for OEM quantities; the CBQ42 Series – 42-53Vdc input, 12V out, 42A/500W output power, isolated dc-dc converter, standard 1/4 brick footprint, standard 1/4 brick pin-out, high efficiencies up to 96.5%, ultra-high power density of 312/W per cubic inch, $44 for OEM quantities; and the CBQ533 – 38-55Vdc input, 7.1V to 11V out, 33A/350W output power, isolated dc-dc converter, standard 1/4 brick footprint, standard 1/4 brick pin-out, high efficiencies up to 96.5%, $38 for OEM quantities