Product category: DC/DC Convertors
News Release from: Datel (UK) | Subject: UWR convertors
Edited by the Electronicstalk Editorial Team on 31 May 2002
No thermal spacemanship
in compact convertors
Datel reckons the latest additions to its long-standing A-series represent the state of the art for standard 2in square DC/DC convertors
They exemplify Datel's relentless drive to deliver more power/current, in standard packages, at lower price per watt, without compromising reliability or resorting to thermal spacemanship. Up to 40W of power is now available from the standard 2 x 2in package formerly associated with 15-20W devices.
Related stories
More current from single-inline POL convertors
Datel's new LSN-16A series SIP DC/DC convertors enable true point-of-use (point-of-load) power processing
SNR is key spec for speedy sampling convertor
The ADS-953 sampling ADC optimises signal return paths and provides internal, local decoupling to obtain an outstanding -95dB peak harmonic specification and 76uV RMS noise-level performance
Datel's new UWR 26-40W single-output switching DC/DC convertors unite a fixed-frequency, fully synchronous, forward topology with the newest, low-on-resistance power FETs to deliver the highest efficiencies and consequently the most power of any products in this long standing form factor.
Everyone wants more power from standard packages, but not if it costs more, compromises reliability, or requires heatsinking.
The 26-40W UWRs, at once deliver higher power, low cost and high reliability by implementing their high-efficiency designs using 100% automatically assembled, SMT-on-PCB (including magnetics) construction.
Further reading
High-current POL convertors support IBA
Nonisolated, point-of-load convertors boast 85-96% efficiencies at competitive prices to help the intermediate bus architecture (IBA) gain respect
For added thermal efficiency and ruggedness, these DC/DCs are encapsulated with thermally conductive potting compound in standard metal packages.
The 26-40W UWR's best in class power density is achieved with advanced, fully synchronous, high-frequency (300-360kHz), forward topology that delivers: high efficiency (90% for 5V models), low noise (75mV peak-peak), tight line/load regulation (+/-0.5% max for both), quick step response (200us), stable no-load operation (for circuits going into "sleep" mode), and no output reverse conduction.
High efficiency enables more output power over temperature than all competing DC/DC convertors in the 2in square form factor.
The most powerful models in UWR series all deliver full power to at least +55C (ambient) without heatsinks or supplementary air flow.
The six basic models in the family offer two output voltages (3.3 and 5V) and three input voltage ranges (10-18, 18-36 and 36-75V).
All are fully isolated (1500V DC guaranteed), and I/O protected (including input pi filters, input overvoltage shutdown and undervoltage lockout, output overvoltage protection, current limiting, short-circuit protection, and thermal shutdown).
Each model has a output trim pin and an on/off control function that may be ordered with either positive or negative polarity.
All UWR 26-40W DC/DC convertors satisfy UL/EN/IEC60950 safety requirements for functional insulation.
"D48" models (36-75V inputs) are CE marked.
Safety reports, EMC compliance reports and qualification (including HALT) test reports are available on request.
Small quantities of UWR 26-40W DC/DC convertors (or free sample/evaluation units) can be ordered directly from the Datel website using credit cards.
• Datel (UK): contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Related Business News
Taiwan Shares Climb 0.9 Percent
Taiwan shares rose on Thursday as investors were cheered by U.S. stock gains overnight. The Weighted Price Index of the Taiwan Stock Exchange rose 49.39 points, or 0.9 percent, to close at 8061.28.
Acxiom Agrees to Be Acquired by...
...Silver Lake and ValueAct Capital for $3.0 Billion. Acxiom Corporation announced today that it has entered into a definitive agreement to be acquired by Silver Lake, the leading investment firm focused on large-scale investments in technology-driven growth industries, and ValueAct
Opnext Reports Fourth Quarter and Full Year Operating Results
Opnext, Inc. , a global leader in the design and manufacturing of optical modules and components, today announced preliminary and unaudited financial results for the fourth quarter and full year ended March 31, 2007.
Vista Partners Updates Coverage on TXP...
...Corporation; Maintains $0.80 Price Target. Vista Partners announced today that it has update coverage on TXP Corporation . Vista Partners provides equity research to institutional and individual investors, with a focus on publicly traded small capitalization companies.
Ceasefire in Gaza Strip begins to...
...take hold ahead of Abbas visit. Gaza City, Gaza Strip (AP) - A tenuous ceasefire between rival Fatah and Hamas forces appeared to be holding Thursday, and shellshocked residents emerged from their homes to stock up on food and supplies after four days of intense fighting brought the ci
Search the Pro-Talk network of sites
