12:1 input quarter-brick DC/DC converters shorten time to market

Available with seven output voltages, including 53V for PoE and 28V for defence applications, the PQAE40/60/100U series of wide input range board-mounted DC/DC converters by Powerbox, are designed for demanding applications.

The three 40 to 100W board-mounted DC/DC converters for the railway, transportation and defense industries have a wide input voltage range of 14 to 160V and 9.0 to 75V. The PQAE40U (40W), PQAE60U (60W) and PQAE100U (100W) can be used to power a large range of applications (e.g. railway, industrial automation and automotive, remote radio-control), to reduce inventory, time to market and documentation.

The PQAE40, PQAE60 and PQAE100U meet thermal shock and vibration requirements as specified in EN61373 and MIL-STD-810F, and also meet the fire and smoke EN45545-2 standard, enabling operation in harsh environments, confirms Powerbox.

The PQAE40, PQAE60 and PQAE100U series can be operated from -40 up to +105 degrees C case temperature, to meet the demanding, ruggedised requirements found in construction vehicles, mining equipment and heavy machinery process control.

In the railway industry, designers are permanently seeking the best power architecture to operate within the overall EN50155 input voltage range, from 24 to 110V, including continuous operation in the 14.4V brownout condition and 154V transients.

To guarantee board power designers the highest level of flexibility, the PQAE40, PQAE60 and PQAE100U series has been developed to deliver full and stable power within an extended input voltage range from 14 up to 160V. For lower bus voltages, the 9.0 to 75V versions cover the main battery voltages, sustaining peak voltage and continuous operation up to 75V.

The PQAE40, PQAE60 and PQAE100U series is available in seven output voltages of 5.0, 12, 15, 24, 28, 48 and 53V, and exhibit an efficiency figure of up to 90 per cent. According to Powerbox, this is an “outstanding efficiency” figure, considering the extra-wide 12:1 input range.

All models within the PQAE40, PQAE60 and PQA100U series feature full protection level sets including over-voltage, short-circuit, over-load protection and thermal shutdown. All units operate at a fixed switching frequency and include PI-type input filters.

The operating temperature range is from -40 to +105 degrees C baseplate, and storage is from -55 to +125 degrees C.

The PQAE40, PQAE60 and PQAE100U series meet thermal shock and vibration requirements as specified in EN61373 and MIL-STD-810F. All comply with IEC/UL/EN-60950, EN62368-1 and the railway standards EN50155 and EN45545-2.

The PQAE40, PQAE60 and PQAE100U series are available in an industry standard quarter-brick (36.8 x 57.9 x 12.7mm or 1.45 x 2.28 x 0.50-inches).

All units are housed in a plastic case with an aluminium baseplate and are potted with a UL94-V0 silicon compound.

Four optional heatsinks with different height and airflow orientations are available on request.

The 9.0 to 75V DC modules feature an input to output basic insulation of 2,250V DC and the 14 to 160V DC modules a reinforced insulation of 3,000V AC.

PQAE40/60/100U series converters are RoHS-compliant.


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