Tustin, Calif.—Cherokee International says its C-BUS line is the industry's first 500-watt, 4:1 intermediate bus converter in a quarter-brick package. The company's CBQ4248G1 delivers 42 amps at a nominal (unregulated) 12 volts; efficiency is nearly 97 percent.
Specifically designed for datacom, networking, and ATE applications, the CBQ4248G1 uses a two-stage power conversion architecture (AC to 48 VDC, and 48 to 12 VDC) to power point-of-load converters or discrete converters that are downstream in a distributed power architecture.
"The need for more power is a chain reaction starting with chip sets that draw more current and culminating with an increased current demand at both the POL-bus and intermediate-bus levels," said Mike Wagner, vice president of marketing. "To help equipment designers who are now faced with putting two converters in parallel to address the increased current demand, we've introduced the C-BUS (CBQ4248G1) intermediate bus converter with up to 68 percent more power than prior generation quarter-brick bus converters," he said, referring to their true available power (minimal derating) at high temperatures and for a minimal forced cooling rate.
The C-BUS converter meets the basic insulation requirements of the EN60950 spec and features remote on/off, and over-temperature, output over-current and over-voltage, and input under-voltage protection. Other features include an input-to-output isolation of 1500 VDC, no minimum load requirement, constant frequency operation for predictable EMI characteristics, low ripple and noise, and auto restart after fault shutdown. The C-BUS converter is offered in both open frame and base plate versions.
Contact the company directly for the product datasheet.
The C-BUS (model CBQ4248G1) is available in both positive and negative logic modules and is priced at $48 each in OEM quantities. Samples are available now.
Cherokee Power, 1-714-544-6665, www.cherokeepwr.com