30 Amp Half Brick DC-DC Converter

May 1, 2008

Lambda has expanded its line of DC-DC converters with the launch of the new iHG series of 100W fully isolated, single output, half-brick devices. Using the industry standard half-brick footprint with no base plate, the modules are suited for engineers designing low airflow, high temperature, 48V power architectures, for telecom, wireless, medical, industrial and many other applications. The initial product offering includes 5V/10A, 5V/20A and 3.3V/30A devices, with further products planned.

The single board construction, combined with up to 93 percent efficiency, delivers a high level of useable power in convection cooled environments, particularly where airflow rates are low. Furthermore, the all new digital control circuitry allows for component count reduction, as well as improved reliability and lower cost, the company says.

The iHG series operates over an input range of from 36V to 75Vdc and feature an output voltage adjustment/trim range from about 50 percent to 110 percent of its nominal output voltage. Operating temperatures can range from -40°C to +125°C, measured at the module.

The iHG’s input current consumption in its standby mode is typically 4.8mA. The input is fully isolated from the output, up to 1500Vdc, allowing different options for polarity and grounding connectivity. Standard features include fixed frequency operation (for reduced EMI), output trim, remote sense, remote on/off, and auto-recovery of input under voltage, output over current, over temperature and over voltage protection.

All units are RoHS compliant. Safety approvals for the iHG family include UL60950 (US and Canada), VDE 0805, CB scheme (IEC950) and CE Mark (EN60950).
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