TDK's 550 to 650W modular power supplies have full MoPPs isolation, low acoustic noise, and up to 10 outputs
Accepting a wide range 90 to 264Vac, 47-63Hz input (440Hz with reduced PFC), the QM4 can deliver 550W at low line and 650W with a high line 180-264Vac input. With its modular construction, the series can be configured using a simple on-line configurator to provide 1 to 10 independently regulated outputs and include individual output good signal and remote on/off functions. The QM series module output voltages range from 2.8V to 105.6V and have output power levels from 300W to 1200W. A further subset of option modules provides an AC Fail signal, standby voltages (up to 12V, up to 2A), global remote on/off and PMBus™ communications. Overall case dimensions for the QM4 are 108 x 63.3 x 270mm (W x H x D).
The QM4 will operate in ambient temperatures of -20 to +70°C (-40°C start-up), with output power and output current linearly derating above 50°C to 50% at 70°C. With efficiencies of up to 91%, less internal heat is generated allowing the use of a low speed cooling fan to reduce audible noise. A lower airflow speed also significantly reduces the ingress of dirt and other contaminants, improving product reliability. All models in the QM series have a seven-year warranty as standard.
The power supply has 4,000Vac (2 x MoPPs) input to output, 1,500Vac (1 x MoPP) input to ground and 1,500Vac (1 x MoPP) output to ground isolation. All models are certified to the IEC/EN/UL/CSA 60601-1, ANSI/AAMI ES 60601-1 and IEC/EN/UL/CSA 60950-1 safety standards. The QM series is also designed to meet IEC/EN61010-1 with CE marking for the Low Voltage, EMC and RoHS Directives. Earth leakage current is less than 300µA, and complies with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards. The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards and are designed and manufactured under the control of ISO9001 and ISO13485 (including risk management).
More information can be obtained at the following TDK-Lambda Americas website, http://www.us.tdk-lambda.com/lp/products/qm-series.htm, or by calling 800-LAMBDA-4.