Tuesday, April 23, 2024

Quarter Brick DC-DC Converter That Is Ideal For Rail Applications

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The product features reinforced isolation with safety certifications that comply to rail standards for rugged operation

Ideal for rail and harsh industrial applications is the RPA150-Q series, a new 16:1 ultra-wide input high-isolation quarter-brick DC-DC converter by RECOM. It has an input range of 14.4V to 170V (200V for 1s) with fully regulated available outputs of 12, 24, or 54VDC and wide +10/-20% trim range (+18/-20% for 24V output).

High efficiency is present across the operating range. A sufficient airflow allows 150W output from -40°C up to at least 65°C for every variant or to at least 75°C with baseplate cooling. With derating, an operation to a baseplate temperature of 105°C is possible.

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The product features 4.242kV/1 min reinforced isolation with safety certifications to EN/UL 62368-1 and CAN/CSA-C22.2 N0. 62368-1 up to 5500m altitude, along with functional and safety compliance to rail standards EN 50155 and EN 45545-2. EMC standards EN 55022 and EN 55011, along with EN 50121-3-2 for rail applications can be met with external filtering. The product features trim remote sense and remote on/off control. Protection includes under-voltage lockout, over-temperature and output over-voltage/over-current.

The RPA150-Q series will operate down to 12V and up to 200V for one second, allowing for dips and surges across various nominal voltages from 24V to 110VDC defined by rail standards EN 50155 and RIA12, with some margin. To suit the typical high shock and vibration rail environment, the product complies with EN 61373 and includes threaded inserts for secure mounting to a PCB or bulkhead. In industrial applications, the compact quarter brick size is useful in space-constrained designs requiring a very wide input range.

“Our RPA150-Q series is ideal for rail and harsh industrial applications,” commented Matthew Dauterive, DC-DC Product Manager of RECOM. “The ultra-wide input range means only one part in the standard quarter-brick format can be used to cover multiple nominal inputs and their surges and transients.”


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