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dc/dc modules broaden 12V architecture range

Posted: 21 Nov 2002 ?? ?Print Version ?Bookmark and Share

Keywords:tyco electronics? qrw010? jrw017? Austin lynx? dc converter module?

Four dc/dc modules from Tyco Electronics Power Systems are capable of extending the options in powering the different stages of 12V intermediate-bus architectures.

"Our modules are designed to open up board space and achieve cost savings without incurring the expense of higher energy dissipation," said Sabi Varma, the company's global director of marketing and operations.

The QRW010 and JRW017 modules deliver an isolated 12V output that serves as the intermediate source of power. The other two modules are additions to Tyco's nonisolated Austin Lynx range, specifically designed to run from a 12-V bus to create multiple voltages at the board level.

The QRW010 and JRW017 deliver 12V at 10A and 18A, respectively, from a 36V to 75V input. Both achieve 92 percent efficiency at full load. The Austin Lynx modules, on the other hand, deliver 10A at 0.9V to 5V from a 12V input. They are available in a single-in-line, vertical through-hole-mounted version and in a surface-mount package for use in automated production.

The modules use synchronous rectification to achieve an efficiency of 94 percent at 5V. Outputs are tightly regulated, and the output can be trimmed to 10 percent.

The Austin Lynx's SMT series measures 33.02-by-13.46-by-8.38mm and the SIP version 50.8-by-212.7-by-8.13mm. The modules offer remote output voltage sensing, overtemperature and overcurrent protection, and remote on/off control.

In lots of 1,000, the QRW-010 is priced at $67.90 each and the JRW017 at $91.20. The Austin Lynx SIP sells for $13.75 in similar quantities.

EE Times

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