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High efficiency 1 kW full-brick DC-DC converter is baseplate cooled

High efficiency 1 kW full-brick DC-DC converter is baseplate cooled

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By Jean-Pierre Joosting



The ICF series follows the same design principles as the previous modules to provide an industrial grade, rugged, high-power, baseplate-cooled DC-DC converter. Capable of delivering up to 1,000 Watts from an input source of 9 to 36 VDC with a typical efficiency rating of 96.4%, the ICF series offers two output voltage options (24 VDC or 28 VDC) and is packaged in an enclosed industry-standard full-brick package.

Measuring 119.0 x 64.0 x 13.2 mm (4.7 x 2.5 x 0.52 inches), the converter is enclosed in a specially designed package/baseplate that meets the environmental stress limits for shock and vibration specified in MIL-STD-810G, while offering full power with a baseplate operating temperature range of -40 °C to 105 °C without derating.

The ICF series achieves its high performance by incorporating proprietary circuit architectures, advanced packaging, and thermal design advances. Accommodating an input voltage range of 9 to 36 VDC, two single output models are available, providing a nominal 24 or 28 VDC regulated output. 

The outputs are fully isolated from the input supply, allowing flexibility for various grounding requirements or for creating positive or negative outputs. A Basic insulation system provides galvanic input-to-output isolation rated at 2250 VDC that is provided across all models. The ICF series has been designed to meet EN60950, UL/CSA safety requirements for embedded power modules. The industry-standard full-brick enclosed package has been specially designed to meet the demands of rugged operating environments and complies with the MIL-STD-810G standard for functional shock and vibration.


Typical applications include 12 or 24 VDC battery systems, powering motor drive systems, emergency vehicle electronics, smart grid, and heavy-duty truck power bus solutions. The ICF series has no minimum load requirement, keeping energy consumption to a minimum when the end device is in standby as well as ensuring stable operation in low load conditions. All modules come with a positive logic remote On/Off control as the standard configuration, along with full protection features including input transient to 50 VDC, over-temperature shutdown, output over current, and input under-voltage lockout.

The ICF series is scheduled for production release in January 2017 but pre-production samples are available upon request.

More information is at www.murata.com

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