300W modules boost HVDC input converter series

March 09, 2017 // By Nick Flaherty
TDK has added higher power models to its telecoms and data centre line of high voltage input DC-DC converters. 

Capable of operating from 200 to 425Vdc, the 300W output power modules in the PH-A280 series are suitable for use in data centres, telecommunications and renewable energy applications using a 380V nominal high voltage DC bus.

The four new models are rated at 12V 25A, 24V 12.5A, 28V 10.8A and 48V 6.3A.  This extends the existing 50 to 150W PH-A280 product range of 3.3V, 5V, 12V, 24V, 28V and 48V outputs.  The 300W models have a greater adjustment range of -60% to +20% to accommodate non-standard voltages.

Following the industry standard half-brick package (61.0 x 12.7 x 57.9mm), the 300W units, with efficiencies up to 92%, can provide full load with -40°C to +100°C baseplate temperatures.  The converters can also be conduction cooled making them suitable for use in sealed outdoor enclosures or liquid cooled applications.

All PH-A280 modules have a standard feature set, including a five-year warranty, remote on-off, and over-current and over-voltage protection.  The series is fully isolated with an input to output isolation of 3,000Vac and safety certified to IEC/EN 60950-1, UL/CSA 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.

More details are on the TDK-Lambda website at  www.uk.tdk-lambda.com/ph-a