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Solutions Search - LED Driver ICs

60V 2MHz Buck-Boost Controllers Regulate High Power Voltage and Current with High Efficiency and Low EMI

Keith Szolusha - Applications Engineering Section Leader Aug 24th 2017
Design Note DN567: Introduction Synchronous buck-boost controllers are versatile and highly efficient. They can produce high power as both a boost and a buck with a single inductor, keeping power supply design simple. Normally, a buck-boost controller in a high power application is operated at a standard or low switching frequency, ...

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High Efficiency Solar MPPT Battery Charger Using LT8611 and AD5245

Perry Faubert - FAE Jul 10th 2017
Introduction Outdoor applications that use solar panels in the range of a few watts often use a microcontroller-based MPPT (Maximum Power Point Tracking)  function to extract the maximum power available over the full range of environmental operating conditions. Many microcontroller-based MPPT solutions designed for ...

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Low EMI LED Driver Features 2A, 40V, Integrated, Synchronous Switches for Automotive Lighting

Keith Szolusha - Applications Engineering Section Leader Oct 12th 2016
Design Note DN557: Introduction The breadth of LED applications has grown to encompass everything from general lighting to automotive, industrial and test equipment, sign boards and safety instruments. Feature requirements for LED drivers have become more extensive. The latest LED solutions require drivers that are compact, ...

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3A, 1MHz Buck Mode LED Driver with Integrated Voltage Limiting

Matthew Grant - Sr Design Eng Oct 3rd 2016
Design Note DN556: Introduction The LT3952 monolithic LED driver includes a 4A, 60V DMOS power switch, excellent for driving high current LEDs in buck mode. Among its many features is an input current sense amplifier, which can be leveraged to provide built-in LED voltage limiting in buck mode.   In buck mode, the ...

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95% Efficient at 2MHz 42V Sync Buck

Jun 24th 2016
Linear Technology’s family of high voltage synchronous step-down DC/DC switching regulators offer up to 95% efficiency. Switching at 2MHz, these low EMI parts utilize the Silent Switcher technology. Other features include spread spectrum frequency modulation, ultra-low quiescent current and are available with single, dual, ...

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A New Era in Space Products - Radiation Tolerant

T.J. Fure - Product Marketing Manager
Gabino Alonso - Strategic Marketing Engineer
Mar 23rd 2016
Recent developments have made doing business in space ever more achievable to a broadening base of companies. A market previously consisting solely of major defense contractors and national governments has been disrupted by a growing list of commercial companies determined to deploy an enterprise beyond the confines of our terrestrial ...

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42V High Power Density Buck Regulators in a Tiny QFN Package

Ying Cheng - Sr Apps Eng Dec 7th 2015
Design Note 1038: Introduction Power dissipation is a significant problem facing the designers of DC/DC converters in industrial and automotive applications, where high currents are required, but space is limited. It is possible to produce a highly efficient regulator from high performance discrete components, but expense and ...

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Spread Spectrum Frequency Modulation Reduces EMI

Kevin B. Scott - Senior Strategic Marketing Engineer
Greg Zimmer - Senior Product Marketing Engineer
Nov 4th 2015
Electromagnetic Radiation (EMR), Electromagnetic Interference (EMI) and Electromagnetic Compliance (EMC) are terms that pertain to energy from electrically charged particles and the associated magnetic fields that can potentially interfere with circuit performance and signal transmissions. With the proliferation of wireless ...

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TechClip Videos – Real, Repeatable Performance

Willie Chan - Sr PME Power Modules Jun 23rd 2014
With the advent of internet services like YouTube, product videos have become an important means for manufacturers to demonstrate the capabilities of their wares to customers, consumers and businesses alike. However, much like the products themselves, the quality and content of all product videos is not the same. Inspired by ...

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Meet Green Standards in 24VAC and 12VAC Lighting Systems: Replace Halogen Bulbs with LEDs Driven by High Power Factor, High Efficiency Converter

Keith Szolusha - Applications Engineering Section Leader Oct 17th 2013
LEDs are increasingly used in 24VAC and 12VAC lighting systems as a robust, energy efficient and high performance alternative to halogen lamps. Power converters that drive the LEDs should have a high power factor (above 90% in order to meet generally accepted green standards), should be efficient, use a minimal number of components ...

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60V, Synchronous Step-Down High Current LED Driver

Walker Bai - Applications Enginneer Nov 1st 2012
Introduction The meaning of the term “high power LED” is rapidly evolving. Although a 350mA LED could easily earn the stamp of “high power” a few years ago, it could not hold a candle to the 20A LED or the 40A laser diodes of today. High power LEDs are now used in DLP projectors, surgical equipment, ...

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