300W digitally controlled, fast response eighth-brick, DC/DCs

March 12, 2015 // By Graham Prophet
These 1/8th-brick footprint, 48Vdc input modules have 9.6 to 12Vdc outputs delivering up to 300W, and feature digital non-linear adaptive control

The iEH series of DC-DC converters offer improved dynamic response, better system stability and increased reliability due to a reduced component count. They 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 high efficiency up to 95.5% to deliver 265W of output power at 55C ambient, or 284W with the optional baseplate, with 1 m/sec airflow. The converters can be paralleled for additional power by specifying the droop mode current share option.

The converters are in the industry standard eighth brick package measuring 58.4 x 22.9 x 12.7 mm. Standard features of the iEH series include remote on/off, output over-current protection, input under/over-voltage protection, output over-voltage protection and over-temperature protection. All iEH models are fully isolated with an input to output isolation of 2250 Vdc and 1,500 Vdc input to baseplate. Safety certification includes IEC/EN 60950-1, UL 60950-1 with CE marking for the Low Voltage and RoHS2 Directives.

TDK-Lambda; www.uk.tdk-lambda.com/ieh