Eighth brick DC/DC converters feature an efficiency of 95.5%

11th March 2015

TDK-Lambda

Siobhan O'Gorman

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Datasheet

Utilising digital non-linear adaptive control, the iEH series of 300W eighth brick DC/DC converters has been released by TDK. Featuring a reduced component count, the devices offer improved dynamic response, better system stability and increased reliability, making them suitable for demanding communications, test and broadcast applications.

The converters can provide output voltages of 9.6, 10.2, 10.8 or 12VDC with currents up to 33A from a nominal input of 48VDC. The digital control also enables component optimisation and a high efficiency of up to 95.5%. This delivers 265W of output power at 55°C ambient, or 284W with the optional baseplate, with just 1m/s airflow. In addition, the iEH converters can be paralleled for additional power by specifying the droop mode current share option.

The devices are in the industry standard eighth brick package measuring 58.4x22.9x12.7mm. Standard features include remote on/off, output overcurrent protection, input under/over-voltage protection, output overvoltage protection and over temperature protection.

All iEH converters are fully isolated with an input to output isolation of 2,250VDC and 1,500VDC input to baseplate. Safety certification includes IEC/EN 60950-1, UL 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.