Murata 50W Isolated DOSA Compatible Sixteenth Brick DC-DC Converters Offer 4:1 Input Range

Murata Power Solutions announced the UWS series of 50W medium power isolated dc-dc converters that are available in either through-hole or surface mount configurations. Meeting the DOSA standard for sixteenth brick dimensions of 1.31 x 0.91 x 0.36 inches, these compact units accommodate the wide input range of + 18 to + 75Vdc around a nominal 48Vdc. Input to output isolation is rated at 2,250Vdc so that the output is protected from spikes, transients and noise on the input.

Within the series there are three models offering outputs of 3.3, 5 or 12Vdc. Up to 54W output is available without the need for any forced air cooling. The 12Vdc unit suits regulated intermediate bus applications. The outputs are regulated to within ± 0.125% across all load conditions. Also, the outputs may be trimmed ±10%, 3.3Vdc model, or +10% to -20% for the 5 and 12Vdc models allowing the user to compensate for voltage losses.

Suiting a broad range of data and telecommunications applications, the UWS series has many self-protection controls such as over-current, over-voltage, input under-voltage and over-temperature shutdown. For systems requiring controlled startup and shutdown, an external remote on/off control may be driven by a switch, transistor or logic signal. This control can be selected as either positive or negative polarity.

Accommodating a wide range of operating temperature from –40 to + 85°C the series has guaranteed operation over the normal industrial range.

The UWS series complies with the internationally recognized safety standards UL/EN 60950-1 and CSA-C22.2 No. 60950-1 2nd edition for IT and commercial equipment.