3-channel constant current led driver with programmable pwm control

Mean wells led driver line includes a variety of constant current power sources that offer pfc function high efficiency, multiple dimming options, and compliance with the latest international. Constant current led driver with pwm dimming control. Moons cp or clks series led driver is constant power led driver. Featuring a full set of keys that give each driver a doubled range of output currents, no additional programming tools or software are required. The led brightness is controlled by performing pwm control on the outputs. The unique automirrortm technology is introduced in cp29, which can guarantee a constant led current in various operating conditions. The dld1500 series of constant current, 3channel led drivers provide either 1500 w of output power at up to max 500 w per output channel, or 1563 w of output power at up to max 521 w per output channel with a nominal input voltage range of 120277 vac for the.

Nxp constantcurrent led drivers are used for lowcurrent. Constant current led driver with programmable pwm control. A 3channel constantcurrent linear led controller from ti december 27, 2017 by nick davis texas instruments recently introduced their new 3channel highside constant current linear automotive led controller that gives designers more lighting design flexibility. The tlc59108 is an i2c bus controlled 8bit led driver that is optimized for. The lt3596 contains three constantcurrent sink led drivers. A6281 datasheet 3channel constant current led driver. The device is compatible with multiple topologies such as boost, sepic and floating load buckboost. The a6281 controls led brightness with 3channel constant current led driver with programmable pwm control. Cat4109 3channel constandcurrent rgb led driver with. When this pin is pull to gnd, the driver output will be. Spicompatible 3wire serial unidirectional interface with data transfer rate of up to 25. Dld1500 3channel constant current led drivers enedo. The iloc family of key programmable constant current led drivers use a pick and click technology for rapidly programming the output current. It incorporates shift registers, data latches, 3channel constant current circuitry with current value set by 3 external resistors, and builtin oscillator for pwm functioning.

The f004 minipuck uses a pinned connection and is available in standard output currents of. Programmable constant led drive current wide constant output current range 5150ma build in pwm dimming scheme for each output channel, supports freerun, especially suitable for low cost controller. A6281 datasheet111 pages allegro 3channel constant. Preliminary ws2801 3channel constant current led driver with programmable pwm outputs 5 15 pin description pin port pin name pin description 1 cki data clock input 2 sdi serial gray scale data input 3 pol output polarity control. Lt3796 lt37961 datasheet and product info analog devices. Hi all, im trying to control 8 rgb backlights with pwm for lcds. Constant current led driver with pwm dimming control general description package outline the njw4615a is a constant current led driver with pwm dimming control. The led brightness is controlled by performing pwm. Led6001 pwmdimmable single channel led driver with. The maximum current is set by an external resistor.

As standard they run as cv but, when output current passes the rated current limit, they switch to a cc mode. The sp7615 is a linear constant current driver designed to drive multiple leds in series from. The minipuck, designed and manufactured in the us by luxdrive, is a super small, pwm dimmable, dc input constant current led driver for powering highbrightness leds. The lm3431 drives 3 external npn transistors or mosfets to deliver high ac. Lt3761 lt37611 datasheet and product info analog devices. A dimming driver designed to drive an external nchannel mosfet in series with the led string provides widerange dimming control up. The max16823 threechannel led driver operates from a 5.

Each led channel includes an individual control loop allowing the device to handle a wide range of led forward voltages while still maintaining tight current matching. In cellular handsets, led blinkers and dimmers control keypad, fun lighting, and status leds. Introduction of the three channel constant current led driver family, its internal function and features, and some design conside. Linkcom is planning to launch a compactlong size programmable led driver in the third quarter of this year. Dm4 is a pwm enabled led driver specifically designed for led lighting or display. Being the first taiwanese ic design house focused in led driving technology, siti has made its way to provide its clients with a total solution for led display applications. The max16834 features constant frequency peak current mode control with programmable slope compensation to control the duty cycle of the pwm controller.

Max16823 highvoltage, 3channel linear highbrightness led. A6281 3channel constant current led driver with programmable pwm control the a6281 is a 3channel constant current led driver that has a wide range of output currents. The max16818 is suitable for use in synchronous and nonsynchronous stepdown buck topologies, as well as in boost, buckboost, sepic, and cuk led drivers. The lm3431 is a 3channel linear current controller combined with a boost switching controller ideal for driving led backlight panels in space critical applications. The cat4109 is a 3channel constant current led driver, requiring no inductor. Led channel currents up to 175 ma are programmed independently via separate external resistors. A wide variety of 3 channel pwm options are available to you, such as 220v.

Led controller ics can also be used for more advanced status or illumination control while offloading host processors in lcd displays. The lt3761lt37611 is a dcdc controller designed to operate as a constant current source and constant voltage regulator. The fixed frequency and current mode architecture result in stable operation over a wide range of supply and output voltages. Output current is adjustable to drive strings in excess of 200 ma. The led6001 device is a led driver that combines a boost controller and a highside current sensing circuitry optimized for driving one string of highbrightness leds. Preliminary ws2801 3channel c onstant current led driver with programmable pwm outputs features applications supports both constant voltage and constant current drive mode programmable constant led drive current wide constant output current range 5150ma build in pwm dimming scheme for each output channel, supports freerun, especially. Features include pwm dimming control and thermal shutdown protection. The a6281 is a 3channel constant current led driver that has a wide range of output currents. The ws2801ownes 3 output channels, each channel can drive a constant current up to 30ma. The group pwm controller dims or blinks all leds with the same value. Build in buffers to cascading data and clock to the next driver.

Lm3431lm3431a 3channel constant current led driver. Led drivers provide constant current control in high brightness lighting with high efficiency greater than 95%. This functionality is suitable for applications which require a flexible led driver. The a6281 controls ledbrightness with a pulse width modulation pwm schemethat gives the application the capability of displaying a billioncolors in an rgb cluster. The a6281 controls led brightness with a pulse width modulation pwm scheme that gives the application the capability of displaying a billion colors in an rgb cluster. The a6280 is a 3channel constant current led driver that has a wide range of output currents. On semiconductor supplies linear led drivers and constant current regulators. Each channels current is programmable using an external currentsense. Two ground referred voltage fb pins serve as the input for several led protection features. Our i 2 c led controllers enable core functions in some of todays most ubiquitous devices and applications. It incorporates shift registers, data latches, 3channel constant current circuitry with current value set by 3 external resistors, and builtin oscillator for. Led driver, constant current programmable, with 32 dimming. The output current can be set by external sensing resister, and the njw4615a can set up to 100ma.

The at9917 is an advanced fixed frequency pwm ic designed to control singleswitch, boost, sepic, and buck led drivers in a constant current mode. At9917 automotive led driver ic with high current accuracy. Int50w which delivers constant current led power suppliers with 3in1 dimming control. I want to use a 3 or 4 channel driver situated at each backlight rather than a 24 channel driver, in order to minimise wiring between modules that way i can get away with only 4 wires between each module and the next. The controller uses a peak current mode control scheme with programmable slope compensation and includes an internal transconductance amplifier to control the output current with high accuracy. Tlc5971 12channel, 16bit, enhanced spectrum, pwm, rgb, led. Because the withstand voltage of the output led pin is 40v, it can. Minipuck dc pwm dimmable constant current led driver.

Each led output can be off, on no pwm control, set at its individual pwm controller value or at both individual and group pwm controller values. The dld1500 series of constant current, 3channel led drivers provide either 1500 w of output power at up to max 500 w per output channel, or 1563 w of output power at up to max 521 w per output channel with a nominal input voltage range of 120277 vac for the 1500 w models, and 220400 vac for the 1563 w models. It features a programmable internal pwm dimming signal. The cp29, a 3channel lowdropout constant current parallel led driver, can be used to drive white led, red led, blue led or any color led whose forward operating voltage is lower than the battery voltage. Home products power management led drivers linear led drivers linear led drivers. Sts wide portfolio of pulsewidth modulation pwm controllers can support isolated and nonisolated acdc and dcdc switch mode power supplies based on the most popular topologies in both singleended such as flyback, forward or quasiresonant and doubleended configurations such as asymmetrical halfbridge for mid to highpower smps. The led driver provides 12bit pulse width modulation pwm resolution. Mean well is one of the leading switching power supply providers in the world, which includes led drivers for a wide range of lighting applications. A6281 datasheet1011 pages allegro 3channel constant. The lt3761lt37611 is ideally suited for driving high current leds, but also has features to make it suitable for charging batteries and supercapacitors. The dimming can be achieved by controlling the iset input or by feeding a pwm signal to the en pin. Constant current led driver with pwm dimming control general description package outline the njw4617 is a constant current led driver with pwm dimming control. The hv9980 is a fully integrated 3channel peak current pwm controller for driving buck converters in constant output current mode.

The max16818 pulsewidth modulation pwm led driver controller provides highoutput current capability in a compact package with a minimum number of external components. It is optimized for use with a large array of 2080ma led strings, where multiple hv9980 ics are used sharing a common clock and a common reference. The output current can be set by external sensing resister, and the njw4617 can set up to 500ma. Each channel has adjustable 12bits 4096 steps grayscale pwm control current outputs. Siti is fully dedicated to offer optimal led driver solutions to the market. The singlewire, 3mbps serial interface easyset provides a solution for minimizing wiring cost. Because the withstand voltage of the output led pin is 35v, it. Clockdata datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. The a6280 controls led brightness with a pulse width modulation pwm.

Some led drivers may feature both options of cv and cc. The lt3796lt37961 are dcdc controllers designed to regulate a constant current or constant voltage and are ideal for driving leds. Gradation control with programmable breathing effect. The pca9745b operates with a supply voltage range of 3 v to 5. The a6280 controls led brightness with a pulse width modulation pwm scheme that gives the application the capability of displaying a billion colors in an rgb cluster. Allegro introduces threechannel constantcurrent led. Tlc5973 3channel, 12bit, pwm constantcurrent led driver. The lm3431 drives 3 external npn transistors or mosfets to deliver high accuracy constant current to 3 led strings.