Rugged DC-DC converters for power electronics applications in unmanned vehicles introduced by TDK Lambda
SAN DIEGO – TDK-Lambda Americas Inc. in San Diego is introducing the 250-Watt RGA series of ruggedized non-isolated DC-DC converters for harsh-environment applications such as robotics, automated guided vehicles, communications, and industrial and portable battery-powered equipment.
Capable of operating from an input voltage of 9 to 40 volts or 9 to 53 volts, the step-down converter delivers output voltages that are adjustable from 3.3 to 15 volts, 3.3 to 24 volts, or 3.3 to 40 volts, with output currents as strong as 20 amps.
The 1/16th brick form factor power electronics device measures 35.6 by 25.6 by 13 millimeters, and is encapsulated to provide high resistance to shock and vibration. The five-sided aluminum case reduces radiated electromagnetic interference and enables conduction cooling to a cold-plate for fanless operation.
The rugged RGA models consist of three voltage and current combinations to support operation from 12-, 18-, 24-, 36-, and 48- power sources. The wide input ranges can assist with inventory reduction programs with one part number covering several nominal voltages.
With efficiencies to 98 percent, power losses are minimized to enable the products to operate in temperatures from -40 to 110 degrees Celsius case temperatures. The need for external output capacitance is reduced due to an optimized dynamic voltage response, thus reducing board space requirements.
The basic feature models include an output voltage adjustment pin, negative logic remote on-off, remote sense, input under-voltage, over-current and thermal protection. Full feature models are equipped with a power good signal, output voltage sequencing and the ability to synchronize the operating frequency to minimize system noise.
All models carry the CE and UKCA mark for the low voltage and RoHS directives and are designed to the IEC/UL/CSA/EN 62368-1 safety standards. Evaluation boards are available for testing.
For more information contact TDK-Lambda Americas online at www.us.lambda.tdk.com.
