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 |
| 2012-05-10 | Power Integrations buys CT-Concept Technologies US-based Power Integrations will use Concept's Switzerland headquarters as its centre of excellence for high-voltage driver design. |
| 2012-05-14 | Selecting off-line LED driver topologies Selecting off-line LED driver topologies |
| 2012-04-30 | Sensor architecture enables real-time auto emissions monitoring (Part 2) Learn about the communications between the emissions monitoring system, the driver and the sensor array. |
| 2012-04-25 | Volkswagen targets integrated safety systems Volkswagen is working on driver assistance and integrated safety applications using peer-to-peer messaging technology, including ways of handling video data in real time for safety systems in a vehicle. |
| 2012-05-02 | TI's stepper motor driver boosts thermal efficiency TI's stepper motor driver boosts thermal efficiency |
| 2012-04-17 | Fairchild's gate drivers target harsh auto apps The FAN7171can drive high speed MOSFETs and IGBTs that operate up to 500V, while the FAN7190can drive MOSFETS and IGBTs that operate up to 600V. |
| 2012-04-16 | TI's low-voltage motor drivers target battery-powered apps TI introduces the DRV8834, DRV8835 and DRV8836 motor drivers that are said to slash power consumption up to 80 per cent and board space up to 95 per cent in brushed DC and stepper motor applications. |
| 2012-04-03 | TI's LED driver features flicker-free dimming TI's LED driver features flicker-free dimming |
| 2012-04-02 | ADC driver ups performance-to-power ratio by 8x ADC driver ups performance-to-power ratio by 8x |
| 2012-03-28 | Power solution improves light load efficiency Fairchild's FDMF6708N Generation II XS DrMOS family combines a driver IC, two power MOSFETs and a bootstrap Schottky diode into a thermally enhanced, 6 x 6mm PQFN Intel DrMOS v4.0 standard package. |
| 2012-03-27 | CFL driver ICs claim 2% flicker-free dimming CFL driver ICs claim 2% flicker-free dimming |
| 2012-03-29 | Controlling RSPI registers with RSPI driver Controlling RSPI registers with RSPI driver |
| 2012-03-14 | LED backlight driver boosts dimming accuracy LED backlight driver boosts dimming accuracy |
| 2012-02-24 | LED drivers optimise backlight TV control Atmel's MSL2164 and MSL2166 LED drivers claim to boost LCD TV picture quality by eliminating 3D ghosting and flickering effects. |
| 2012-02-21 | Lamp driver IC boasts PFC, boost functionality Lamp driver IC boasts PFC, boost functionality |
| 2012-02-16 | Comparator boasts low-noise operation ADI's AD8469 comparator boasts low noise operation, TTL- and CMOS-compatible output drivers, adjustable hysteresis control and a shutdown input. |
| 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 |
| 2012-02-06 | Gate driver enables high power density Gate driver enables high power density |
| 2012-02-09 | Special considerations for MAX14820/MAX14821 sensor/actuator transceivers Read about the considerations that must be taken into account to avoid falsely detecting a wake-up event. |
| 2012-02-01 | Controller IC enhances car-window operation ST's L99DZ80 is a multi-functional door-zone driver with an integrated electric-window control that enhances car-window operation. |
| 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 |
| 2012-01-23 | MCUs tout low 330nA sleep power mode Microchip's PIC24FJ128GA310 16 bit MCU family features VBAT battery backup, low-power sleep with RAM retention and an LCD driver. |
| 2012-01-06 | MOSFET drivers claim 100V surge protection TI's MOSFET drivers claim high efficiency and reliability while protecting power systems from 100V surges. |
| 2011-12-14 | Motor control kit touts fast BLDC motor spin TI's DK-LM3S-DRV8312 is a new motor control kit that combines a 32bit Stellaris LM3S818 Cortex-M3 MCU and DRV8312 motor driver to spin sub-50V, 6.5A three-phase brushless DC (BLDC) motors in minutes. |
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