TDK Corp. has announced the introduction of a 3,200-W 48-V model to the TPS power-supply series. The 2U-high product operates from a wide range delta or wye 350- to 528-VAC 3-phase input. The 48-V model is suitable for use in many applications including test and measurement equipment, semiconductor fabrication, industrial printers, and lasers. The high-voltage, 3-phase input avoids the requirement for step down transformers and assists phase load current balancing.
The TPS3000-48 is fully featured with isolated AC Fail, DC Good, and dropped-phase
signals; remote on/off; remote sense; and a 12-V 0.3-A standby supply. A PMBus communications interface allows remote monitoring of output voltage, output current, internal temperature, status signals, and fan speed. In addition, the output-voltage, overcurrent limit and the remote on/off can be programmed by the PMBus. The output voltage can also be adjusted from 38.4 to 56.5 V and the current-limit point from 70 to 105% using front-panel potentiometers or an analog 0- to 5-VDC voltage. Up to eight units can be connected in parallel for higher power, and internal ORing FETs allow redundant operation.
The 92.5% efficient unit can operate at full load in ambient temperatures of up to 50°C and deliver up to 55% load at 70°C. Cooling is provided by an internal temperature-controlled fan to reduce acoustical noise. The case measures 107 x 84.4 x 324 mm, making it suitable for 2U-high racking systems, and the weight is just 2.7 kg.
The power supply has 3-kVAC input to output, 2-kVAC input to ground, and 500-VAC output to ground isolation with all models certified to UL/CSA 60950-1 and IEC/EN 60950-1; it carries the CE mark for the Low Voltage and RoHS2 Directives. The TPS3000 models comply with EN55032-A conducted and radiated emissions and meet the IEC 61000-3-2 harmonics, IEC 61000-4 immunity, and SEMI F47-0706 standards.