Create LED driver and battery charger applications with the LT8391 IC

18 Oct 2017
Published By
Miguel Gudino

Miguel Gudino

Arrow Electronics

Miguel Gudino is an electrical engineer that specializes in electronic passive components and computer organization. He believes t... Read more

Linear Technology’s LT8391, a 60V synchronous 4-switch buck-boost LED controller with spread spectrum and internal PWM dimming, is ideal for LED driver and battery charger applications in automotive, industrial and battery-powered systems.

Its 4-switch single inductor architecture allows VIN above, below or equal to VOUT. Its synchronous switching provides up to 98% efficiency, and it has a wide range of VIN (4V to 60V) and VOUT (0V to 60V, [51V LED]).

Typical application schematics are shown in the datasheet for the LT8391 and include a 98% efficient 50W (25V, 2A) buck-boost LED driver and a 97% efficient 8A buck-boost SLA battery charger. The LED driver is designed to drive high power LEDs up to 250W and easily transition between two-switch boost, four-switch buck-boost and two-switch buck regions of operation.

If you need a refresher or want to learn how a buck-boost converter works, check out this article.

Article tags

Latest News

Wolfspeed SiC Transforms Solar Energy Infrastructure

One year ago

Residential energy storage solutions to enhance energy efficiency

Residential Energy Storage Solutions (ESS) are not only applied in industrial and power generation settings but have also become crucial in the residential sector, reflecting current applications and market trends. While residential ESS solutions require lower power, the demands for efficiency and safety remain comparable to industrial applications. This article will introduce you to the market trends in residential ESS solutions and the functional features of the SiC-related solutions introduced by Arrow and Rohm.

One year ago

Green industrial solutions are driving the energy applications market growth

One year ago
Sorry, your filter selection returned no results.

Connect with Electronic Components

Facebook LinkedIn Instagram YouTube
Contact Us

Contact and Support

Programs and Partners

Featured Products

Product Categories

Manufacturers

Verticals & Trends

We've updated our privacy policy. Please take a moment to review these changes. By clicking I Agree to Arrow Electronics Terms Of Use  and have read and understand the Privacy Policy and Cookie Policy.

See Short Policy

Our website places cookies on your device to improve your experience and to improve our site. Read more about the cookies we use and how to disable them here. Cookies and tracking technologies may be used for marketing purposes.
By clicking “Accept”, you are consenting to placement of cookies on your device and to our use of tracking technologies. Click “Read More” below for more information and instructions on how to disable cookies and tracking technologies. While acceptance of cookies and tracking technologies is voluntary, disabling them may result in the website not working properly, and certain advertisements may be less relevant to you.
We respect your privacy. Read our privacy policy here