Half-brick DC-DC converters from Lambda

The single board construction combined with up to 93% efficiency delivers a very high level of useable power in convection cooled environments, particularly where airflow rates are low. Furthermore, the all new digital control circuitry bringing a significant component count reduction, as well as improved reliability and lower cost, makes the iHG family well-suited as replacements or upgrades in legacy applications.

The field-proven power conversion circuitry of the iHG family guarantees the product’s monotonic start up into a highly capacitive, pre-biased load and no reverse current flow in standby, start-up, shut-down or parallel operation uses. In addition, a double ended-power train topology with FET driven synchronous rectification combined with a secondary side auxiliary control rail ensures safe operation under all functional and fault conditions. This makes Lambda’s iHG a more robust and higher reliability converter than other modules available on the market, offering the ideal solution for powering a broad range of reliability critical applications.

In addition to high efficiency operation, the iHG’s very low input current consumption in standby mode, demonstrates Lambda’s commitment to the ‘green’ environmental issues of concern to all designers in every application today.

The input is fully isolated from the output further adding to product versatility by allowing different options for polarity and grounding connectivity. Standard features include fixed frequency operation, output trim, remote sense, remote on/off, and auto-recovery of input under voltage, output over current, over temperature and over voltage protection circuitry. Latching / non latching protection and positive polarity on/off are offered as options.

Safety approvals for Lambda’s new iHG familiy include UL60950 (US and Canada), VDE 0805, CB scheme (IEC950), and CE Mark (EN60950).