Digitally-controlled 300W eighth bricks offer improved dynamic response

12-03-2015 | TDK | Power

TDK has introduced the iEH series of 300W 1/8th brick DC-DC converters.
Utilising digital non-linear adaptive control, they offer improved dynamic
response, better system stability and increased reliability due to a reduced
component count - making them ideal for demanding communications, test and
broadcast applications, says the company.

The iEH series can provide output voltages of 9.6VDC, 10.2VDC, 10.8VDC 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 just 1m/s airflow. In addition, 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
58.4mm x 22.9mm x 12.7mm. 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
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, says the company.

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