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ROHM Introduce Ultra-High-Efficiency 76V DC/DC Buck Converter
ROHM has launched a 12 to 76V input, 3A variable output voltage, DC/DC Buck converter with integrated 80V/150mΩ MOSFET optimized for high power (high voltage x large current) applications such as motors, factory automation equipment, communications infrastructure, and industrial machinery.
In recent years, with the increasing importance to conserve energy in all areas comes a push to achieve greater energy savings – even in the industrial equipment sector – through the use of high power semiconductor devices and power supply ICs. And with this comes a need to provide breakdown voltages higher than the input voltage to prevent damage due to instantaneous surge and transient voltages (such as those caused by lightning). In response, ROHM leverages its advanced cutting-edge power processes and vertically-integrated production system to develop products for the industrial equipment market that demands long-term, stable supply along with high reliability to enable continuous operation.
The BD9G341AEFJ utilizes ROHM's high voltage 0.6um BiCDMOS process to achieve an industry-leading maximum breakdown voltage of 80V (the highest in ROHM's non-isolated DC/DC converter line-up) and a continuous operating input range of 12 to 76V, while market-proven advanced analog design technology results in the highest conversion efficiency in its class. In addition, multiple protection circuits minimize heat generation, even during output pin shorts (contact), preventing possible damage and increasing reliability vs. conventional products. And the compact 8pin package requires fewer parts and reduces mounting area, contributing to easier PCB placement and end-product miniaturization.
The industry's highest power conversion efficiency in the 76V DC/DC converter class has been achieved by leveraging advanced market-proven analog design technology. Efficiency is increased by 1.5% compared to conventional products during stable operation and by as much as 19% (300kHz oscillation frequency, 48V supply, 5V output), improving energy savings in industrial equipment.
Conventional protection functions normally cannot suppress heat generation during output shorts (contact), which can lead to overheating and even damage. In contrast, ROHM's proprietary protection function minimizes heat generation during accidental output shorts, preventing damage and improving system reliability.
The BD9G341AEFJ is offered in a compact 8pin package (4.9mm x 6.0mm, t=1.0mm) and features a highly integrated design that reduces the number of parts required from 17 to 12, simplifying end-product design, BoM costs, and development efforts. The package is also thermally enhanced with a thermal pad under the device to allow the package to dissipate heat efficiently via the PCB substrate. The device has an operating temperature range of -40°C to +85°C.
Click below for a short overview of the BD9G341AEFJ
An evaluation board is also available for the BD9G341AEFJ, the BD9G341AEFJ-EVK-101 evaluation board helps designers quickly realise and test their designs reducing time to market.
Click here for more information or to buy from Anglia Live.
Click here to download datasheet for the BD9G341AEFJ
Anglia are offering customers a FREE evaluation board and samples of the BD9G341AEFJ Ultra-High-Efficiency 76V DC/DC Buck Converter from Rohm, please fill in the form below to register for your FREE evaluation board and samples now.
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To register for a FREE evaluation board and samples of the BD9G341AEFJ Ultra-High-Efficiency 76V DC/DC Buck Converter from Rohm, please fill in the form below
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FREE samples for UK and Ireland customers only, subject to availability.
For more information, or details on the full range of Rohm products available from Anglia, please email info@anglia.com
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This news article was originally published in July 2019.
