PH1200A280 1,200 W DC/DC Converters

TDK-Lambda’s PH1200A280 full-brick DC/DC converters are rated at 1200 W and have an input of 200 VDC to 425 VDC. The modules deliver isolated, regulated 12 V, 24 V, 28 V, 36 V, and 48 V outputs. The converters are very, suitable for 380 VDC input distributed power systems using non-isolated AC/DC power supplies. Other applications include semiconductor fabrication, communication systems, test and measurement and custom power supplies utilizing a power module-based solution.

The PH1200A280 is packaged in the industry standard full brick footprint, measuring 116.8 mm in length, 61 mm wide and 12.7 mm high (4.6" x 2.0" x 0.5") enabling low profile designs. The modules can operate reliably in ambient temperatures from -40°C to 85°C and baseplate temperatures from -40°C up to +100°C. With efficiencies of up to 94% less internal waste heat is generated, simplifying cooling using either an optional heatsink or conduction into a cold plate.

Standard features include remote sense, remote on/off, inverter good signal, and a 10 V to 14 V auxiliary voltage. Up to 11 modules may be connected in parallel with current sharing to provide additional power and an internal O-Ring FET is provided for redundant operation. The PH1200A280 has wide range output adjustment of -40% to +20% from nominal using the trim terminal for non-standard voltages.

The input to output isolation is 3,000 VAC, the input to baseplate is 2,500 VAC, and the output to ground is 500 VAC. Safety certification is to the IEC/EN/CSA/UL 62368-1 standard and has CE / UKCA markings to the Low Voltage and RoHS Directives. With external circuitry, the PH1200A280 will meet radiated and conducted emissions and comply with the IEC 61000-4 immunity standards.