TDK has announced a new 400 to 750 W rated RGB series of ruggedised non-isolated DCDC converters from TDK-Lambda. Operating from input voltages of 9 to 18, 18 to 32 or 18 to 60V, these buck step-down converters can deliver output voltages adjustable from 0.8 to 8 V or 3.3 to 24 V with output currents up to 60 A depending on the power level. The series is designed for harsh environments including medical, automated guided vehicles, industrial mobile robots, drones, commercial off-the-shelf, industrial, test, measurement and battery-powered equipment.
Efficiencies up to 98.5 per cent let the product deliver high usable power in demanding thermal environments with case temperatures of -40 to 115°C, while providing a longer battery life. With a 1/16th brick pinout and measuring 38.1 by 49.5 by 13.0mm, the converters are encapsulated to provide shock and vibration performance to MIL-STD-810G. The five-sided aluminium case reduces radiated EMI and enables conduction cooling to a cold-plate for fanless operation.
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. An optional adjustable current limit is also available to reduce stress on the input source, converter and load in the event of an overload.
All models carry the CE and UKCA marks for the Low Voltage and RoHS Directives and are designed to the IEC/UL/CSA/ EN 62368-1 safety standards.