Rugged DC-DC converter power supply devices for remote sensors, vehicles, and communications introduced by Murata Power

MANSFIELD, Mass., 4 July 2010. Murata Power Solutions Inc. in Mansfield, Mass., is introducing the UEI25-120-D48 series isolated DC-DC converters for remote sensor systems, area-limited microcontrollers, data communications, vehicle electronics, small instruments, and portable electronics. This power electronics device offers 25-Watt out output, a 2:1 input range, 12-volt output, and high efficiency.

The rugged power supply, which operates in the industrial temperature range of -40 to 85 degrees Celsius, offers 25-Watt output in one square inch of board area, and offers efficient regulated DC power for printed circuit board mounting. The 0.96-by-1.1-by-0.32-inch power supply devices accept a 2:1 input voltage range of 36 to 75 volts DC, and features a 12-volt output which can be trimmed up or down by 10 percent with an external trim resistor, plus efficiency as high as 87.5 percent to enable no-fan operation.

These DC-DC converters include magnetic isolation with basic insulation, up to 2250 volts DC. For powering digital systems, the outputs offer fast settling to step transients and will accept higher capacitive loads. For systems requiring controlled startup/shutdown, and external remote on/off control may use a switch, transistor or digital logic.

Self-protection features avoid converter and external circuit fails. These include input undervoltage lockout and overtemperature shutdown. The outputs current limit using the 'hiccup' autorestart technique and the outputs are short-circuit protected. Additional features include output overvoltage and reverse conduction elimination.

For more information contact Murata Power online at www.murata-ps.com.