DC/DC converter series extended with additional output voltages
TDK Corp. has announced the introduction of an extension to the TDK-Lambda PH-A280 series of DC/DC power modules with high-voltage DC input. Operating from a range DC input of 200 to 425 VDC, the PH-A280 range now includes 3.3-V, 15-V and 28-V outputs.
The six new PH-A280 power modules are available in three output power levels: 75 W, 100 W, and 150 W. The complete product family encompasses nominal output voltages of 3.3 V, 5 V, 12 V, 15 V, 24 V, 28 V, or 48 V, adjustable by -20% to +10% (±20% for 5-V output models). Efficiencies of up to 90% are achieved, an improvement of 5% over the prior PH series.
All modules operate at full load over a baseplate temperature range of -40 to +100°C, making them suitable for liquid-cooled, air-cooled, or conduction-cooled systems. The dimensions follow the industry standard quarter brick format (37.2 x 12.7 x 58.3 mm).
As standard, the PH-A280 units are equipped with remote sense, remote on/off, overvoltage, and overcurrent protection circuitry, and they include a 5-year warranty. All models have an input-to-output isolation of 3 kVAC, are safety-approved to UL/CSA/EN 60950-1, and carry the CE mark in accordance with the LV Directive.
The supplies serve industrial, smart-city, and test-and-measurement applications and also find use in power-generation-related equipment.
About the Author
Rick Nelson
Contributing Editor
Rick is currently Contributing Technical Editor. He was Executive Editor for EE in 2011-2018. Previously he served on several publications, including EDN and Vision Systems Design, and has received awards for signed editorials from the American Society of Business Publication Editors. He began as a design engineer at General Electric and Litton Industries and earned a BSEE degree from Penn State.