comment on this article

New additions to i7C series of non-isolated DC-DC converters

TDK has introduced 20A 300W rated models to the TDK Lambda brand i7C series of non-isolated DC-DC converters.

The output voltage of these latest step-up and step-down converters is adjustable from 8 to 24V, and they have been optimised to operate from a wide range input voltage of 9 to 36V. The converter are able to seamlessly transition from buck to boost mode operation without disruption in performance.

The i7C2W 20A models can derive additional high power outputs from 12V or 24Vdc power supplies or batteries. Compared to similarly rated isolated DC-DC converters, the i7C2W series offers a significantly lower cost, smaller size and high efficiency levels of up to 97%. These very compact products are intended for medical, industrial, automated guided vehicles, drones, and portable battery-powered equipment.

During light load conditions, the i7C’s control circuitry significantly reduces power consumption. At zero load, the input current draw is typically just 5mA, which can be reduced to around 0.25mA when the remote on-off puts the converter into standby. The low quiescent current allows battery-powered equipment to remain functional longer during periods of non-operation.

The open frame i7C2W 20A measures 36.8mm in width, 34mm in length and has a height of 14.7mm. The thermal design of the series allows for minimal output de-rating, even with low airflow conditions. The product’s design reduces the need for large external components, offering savings on both cost and board space.

Standard features for the i7C series include a trim pin for output voltage adjustment, + remote sense, remote on-off (positive or negative logic), input under-voltage, over-current and over-temperature protection. As an option, the full-featured models are equipped with a power good signal and output current monitoring. To minimise system noise, the switching frequency can be synchronised to another model or to an external clock.

All models have safety certification to the IEC/UL/CSA/EN 62368-1 standards, with CE marking to the Low Voltage and RoHS Directives.

Author
Neil Tyler

Comment on this article


This material is protected by MA Business copyright See Terms and Conditions. One-off usage is permitted but bulk copying is not. For multiple copies contact the sales team.

What you think about this article:


Add your comments

Name
 
Email
 
Comments
 

Your comments/feedback may be edited prior to publishing. Not all entries will be published.
Please view our Terms and Conditions before leaving a comment.

Related Articles

Feeding the beast

In-Vehicle Infotainment (IVI) systems have a huge appetite for data storage ...

Measuring health

The latest generation of health sensing wearables won’t just simply measure ...

300W output modules

Vox Power has introduced two new 300W output modules for use with their ...

SCALE-2 gate drivers

Power Integrations has announced a SCALE-2 gate driver for 130 x 140 mm single ...

Get to market faster

A quick look at using Vicor's PFM and AIM in VIA packaging for your AC to Point ...

Digital consciousness

​Would you consider uploading your brain to the cloud if it meant you could ...

End game

How are IoT technologies keeping vaccines safe, in storage and transit, and in ...