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750W i7A Series of 24V Nominal Input Non-Isolated Buck DC-DC Converters for Small Battery Powered Industrial and Medical Equipment
TDK Corporations has introduced the 750W rated TDK-Lambda i7A series of 24V nominal input non-isolated buck DC-DC converters. With an adjustable output voltage range from 3.3V to 18V and a maximum current of 45A, the compact converters are suitable for use in robotics, drones, medical industrial, test, measurement, and portable battery-powered equipment.
Compared to other isolated DC-DC converters, the i7A models can derive additional high power outputs from a 24Vdc power supply at a lower cost and higher efficiency. Packed in the industry-standard 1/16th brick footprint, the new device can offer efficiencies of up to 98.5% with minimized internal losses and operate at an ambient temperature of -40°C to +125°C. The i7A design can provide a low output ripple and excellent response to dynamic loads in a smaller space.
A choice of three mechanical configurations is available, measuring just 34mm wide and 36.8mm in length. The 11.5mm high open-frame model is suitable for applications requiring a low profile. The baseplate version can be conduction-cooled to a cold plate and is 12.7mm high. Models with an integral heatsink, which are for convection or forced air cooling, are 24.9mm high.
The i7A standard also features output voltage adjustment, + remote sense, remote on-off (positive or negative logic available), input under-voltage, over-current, and over-temperature protection. Evaluation boards are available.
Features of i7A series of non-isolated buck DC-DC converters
- Up to 750W in a 1/16th Brick Footprint
- High Efficiency - Up to 98.5%
- Wide 3.3 to 18V or 3.3 to 24V Output Adjustment
- 18 to 32V or 18 to 60V Input Ranges
- Low Component Count With Minimal External Components
- Minimal Derating Requirements in Low Airflow Environments
- safety certification to the IEC/UL/CSA/EN 62368-1 standard
Note: More technical information can be found in the i7A Series Datasheet linked at the bottom of this page and on the product page of the i7A series of non-isolated buck DC-DC converters.
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