Laurence Marchini, Editor, writes:
We see from your search that you're looking for information on the term "LED driver",
and we have a large number of manufacturers' news releases and technical articles here on Electronicstalk which will be of interest.
Let me be your guide.
Start with
the news release LED drivers cover all the latest options from
Zetex, which we summarised at the time by saying "Inductive DC/DC convertors drive single or multiple LEDs with currents from 700mA through to 1.5A, in buck, boost and buck/boost configurations".
Earlier in the week,
we featured the news release LED driver suits retail and architectural use from
Exar: "Operation at 1.2MHz at the maximum input voltage of 29V can be a challenge for many buck regulators but with a guaranteed minimum on-time of 100ns the SP7600 can easily convert from 29 to the 4V".
In January 2008, we covered the news from Advanced Analogic Technologies
concerning its AAT1239-1
- take a look at White LED driver cuts down on flicker
which says: "By driving up to 10 white LEDs in a serial string, the AAT1239-1 simplifies the use of larger LCD panels in a wide array of battery-powered portable devices".
Take a look also at the news release from Linear Technology Corp, Buck mode convertor drives up to 160 LEDs,
as well as Programmable LED driver removes need for binning from Maxim Integrated Products,
and Driver handles two displays with power to spare from Linear Technology Corp.
See also:
LED driver runs displays at low voltages
(January 2008)
Eight-channel constant-current sink LED driver is designed for billboard, marquee, instrument and other large general-purpose LED displays
Constant-current driver finds faults in LED panels
(January 2008)
Silent error detection features full LED panel coverage to detect even dark pixels in real time
LED driver suits large, outdoor displays
(January 2008)
The AS1112 full colour LED driver is designed for video displays with fast video action, such as in stadium and sporting event applications
LED driver powers three strings of eight
(January 2008)
Fixed-frequency current-mode architecture ensures stable operation over a wide range of supply and output voltages
LED driver powers three bright diodes
(January 2008)
The TPS61165 can drive backlight LEDs for media form factor displays up to 9in diameter, such as those used in ultramobile PCs and LCD photo frames
Boost chip powers OLED and backlight
(December 2007)
Dual-output boost convertor combines a 2.3MHz PWM LED driver with a low-noise OLED driver
LED driver gains a fractional advantage
(December 2007)
Fourth mode of operation at 1.33x delivers higher average efficiency, without the need for the additional capacitor required by all existing four-mode charge pumps
LED driver meets LCD panel-makers' needs
(December 2007)
Designed for LCD TV backlight applications, the innovative AS3693 allows dimming of multiple segments of the LCD TV backlight, enabling highest contrast ratios and best picture quality
LED driver dims three strings
(December 2007)
Devices feature three 36V-rated open-drain constant-current sink outputs capable of delivering up to 150mA to three separate strings of HB LEDs
LED driver powers green lighting
(November 2007)
Boost driver device reduces component count by handling both charging and driving in solar-powered LED lighting applications
LED driver suits medium-size LCDs
(November 2007)
A high-voltage CMOS output stage in the device allows five LED strings to be accurately biased and regulated from a low voltage input supply while still delivering efficiency levels of up to 87%
LED drivers provide stable colours
(October 2007)
The LM3401 is a high-efficiency hysteretic PFET switching controller that provides a high-performance, constant current drive to a string of LEDs, resulting in a constant colour output
LED driver provides precision control
(October 2007)
Device drives 16 LEDs directly in parallel and provides LED dimming in 256 brightness steps for backlighting and RGB colour mixing
LED driver offers power and efficiency
(October 2007)
National's LM3433 LED driver opens the way for high-reliability LEDs to be used in large-screen LCD TV backlighting applications
Driver is bright choice for three-colour dimming
(October 2007)
Three-channel constant-current LED driver IC incorporates an on-chip oscillator for simple programmable brightness control
LED driver suits mobile applications
(October 2007)
Linear Technology's LTC3219 LED driver provides nine individually configurable current sources for main, sub and RGB displays
LED driver suits large applications
(October 2007)
A high-speed, four-wire serial interface with up to 25MHz clock frequency controls each individual channel using a shift register and latch configuration
Power management products extend battery life
(October 2007)
National Semiconductor's new power management products extend battery life and enable next-generation visual effects in portable media devices
Driver powers up large LED displays
(October 2007)
Constant-current sink LED driver is designed for billboard, marquee, instrument and other larger, general-purpose LED displays
Tiny driver boosts up to eight HBLEDs
(October 2007)
High-efficiency boost DC/DC convertor features an integrated 3.5A guaranteed switch current and delivers a net output power of 7-12W for driving high-brightness LEDs
Dimming driver is bright answer for LEDs
(September 2007)
Flexible HB LED driver is ideal for applications that require a wide dimming-control range, such as interior and exterior automotive lighting
Cool LED drivers ease CCFL backlight replacement
(September 2007)
LED driver boards use novel thermal management techniques to take the heat out of backlights for industrial LCDs
LED driver offers high brightness
(August 2007)
The MAX16821's rapid-current-pulsing LED technology meets the demanding requirements of projection applications
Electronics companies reach foundry agreement
(August 2007)
An agreement between California Micro Devices and MagnaChip Semiconductor will cover the production of CMD protection chips for mobile handset and digital consumer electronics applications
Backlighting semiconductors set for boom
(August 2007)
IMS Research believes that LCD TVs and PC notebooks will drive the market for LEDs in backlighting, together with the associated LED driver ICs and ambient light sensors
Driver is simple answer for handheld backlights
(August 2007)
High efficiency, low noise and extremely small total solution footprint make LT3591 ideal for handheld applications requiring up to 10 white LEDs for backlighting
Three-channel driver optimises LED performance
(August 2007)
Intelligent and power efficient LED drivers offer a significant advantage to solid-state lighting manufacturers that are serious about reducing the carbon footprint of their ranges
News on the Magtech Industries LED drivers from PIV Technology
(July 2007)
Distribution deal covers an extensive range of LED driver power supplies made by Las Vegas based Magtech Industries
LED driver is cost engineered for budget handsets
(July 2007)
Driver chip provides basic illumination for low-cost TFT-LCD panels in an extremely small footprint while requiring just two external components
Component kits are on hand for prototyping
(July 2007)
Free Quick Kit service allows engineers to order selections of current sensing resistors, thermistors, MLCCs, hybrid and solid chip electrolytic capacitors and thin-film chip inductors
Integrated LED drivers need no support
(July 2007)
Multichannel linear LED drivers minimise board space and simplify display backlighting by requiring no external components
Driver dims multicolour LED lighting
(July 2007)
High-efficiency driver is designed to drive tricolour RGB LEDs for fun lighting or enhanced LCD backlighting in portable applications
Driver sheds light on handset flash and video
(July 2007)
Inductorless high-current white LED driver delivers up to 400mA of LED current
Power chip manages complex backlights
(June 2007)
Seven-channel charge-pump-based light management unit offers backlighting for a main display, subdisplay and indicator functions