What is an LED driver?
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Regardless of type, size, or power, all LEDs work best when driven with a constant current source since LED color changes with small variations in driving current. LEDs often support varying system voltages and forward voltages, which can cause variations in LED brightness and color. An LED driver is a self-contained power supply that has outputs matched to the electrical characteristics of your LED or array of LEDs. There are currently no industry standards (as of 2009), so understanding the electrical characteristics of your LED or array is critical in selecting or designing a driver circuit. Drivers should be current-regulated (deliver a consistent current over a range of load voltages). Drivers may also offer dimming by means of pulse width modulation (PWM) circuits. Drivers may have more than one channel for separate control of different LEDs or arrays. |
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| 2012-05-17 | TI LED driver micro-modules drive 23W power TI LED driver micro-modules drive 23W power |
| 2012-05-14 | Selecting off-line LED driver topologies Selecting off-line LED driver topologies |
| 2012-04-03 | TI's LED driver features flicker-free dimming TI's LED driver features flicker-free dimming |
| 2012-03-14 | LED backlight driver boosts dimming accuracy LED backlight driver boosts dimming accuracy |
| 2012-02-24 | LED drivers optimise backlight TV control LED drivers optimise backlight TV control |
| 2012-02-14 | LED driver reference design ups efficiency LED driver reference design ups efficiency |
| 2012-02-13 | Reference design for LM3466 Here's a look at the design of an LM3466 evaluation board that drives 5 LED strings, each of which consists of 14 LEDs. |
| 2012-02-08 | 3-ch LED driver delivers sub-µs PWM dimming 3-ch LED driver delivers sub-µs PWM dimming |
| 2012-01-30 | NXP LED driver IC family tips 95% efficiency NXP LED driver IC family tips 95% efficiency |
| 2012-02-02 | Using LM3492 LED driver for AR111 app Using LM3492 LED driver for AR111 app |
| 2012-01-31 | Eval board for LM3448 Read about LM3448, a non-isolated LED driver solution that can be used to power a single LED string consisting of eight to twelve series connected LEDs. |
| 2012-01-30 | Using LM3448 isolated flyback LED driver Using LM3448 isolated flyback LED driver |
| 2011-12-07 | LED drivers ICs offer programmable current o/p LED drivers ICs offer programmable current o/p |
| 2011-11-21 | Intro to offline LED lighting driver Intro to offline LED lighting driver |
| 2011-11-11 | Managing operating trade-offs in flyback LED drivers Managing operating trade-offs in flyback LED drivers |
| 2011-11-01 | LED driver IC claims high current accuracy LED driver IC claims high current accuracy |
| 2011-10-17 | Waterproof LED drivers tout 90% efficiency Waterproof LED drivers tout 90% efficiency |
| 2011-10-07 | TI launches phase-dimmable LED lighting drivers TI launches phase-dimmable LED lighting drivers |
| 2011-10-04 | LED driver ICs aim for general lighting apps LED driver ICs aim for general lighting apps |
| 2011-10-03 | Buck LED driver provides 75mA current Buck LED driver provides 75mA current |
| 2011-08-29 | LED driver IC reduces board space LED driver IC reduces board space |
| 2011-08-31 | Utilise eTPU2, eQADC for PWM control on MCU Know how to use the "enhanced Timing Processor" (eTPU2) PWM driver from the eTPU2 general function set to demonstrate an open-loop LED dimmer control system. |
| 2011-07-28 | HBLED driver IC targets automotive lighting apps HBLED driver IC targets automotive lighting apps |
| 2011-07-25 | LED drivers target low-power LED TVs LED drivers target low-power LED TVs |
| 2011-07-21 | 40V LED driver IC available in DFN-5 package 40V LED driver IC available in DFN-5 package |
| 2011-07-15 | Detection circuit lowers stress on LED driver with power-line dimming Detection circuit lowers stress on LED driver with power-line dimming |
| 2011-07-06 | LED driver resolves faulty LED strings LED driver resolves faulty LED strings |
| 2011-07-01 | LM3464A 4 channel LED driver evaluation board LM3464A 4 channel LED driver evaluation board |
| 2011-06-16 | High-voltage LED power supply minimises parts count High-voltage LED power supply minimises parts count |
| 2011-06-15 | 2A RGB LED driver designed for portable projectors 2A RGB LED driver designed for portable projectors |
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