High power led driver i2c

Here i showed how to light up a high power 10w led with the signal from a microcontroller. I2c led driver is a high power led driver with i2c control and 12bit resolution features. Lm3549 high power sequential led driver datasheet rev. The lt37451 integrates a 16channel led driver with a 55v buck controller. Highefficiency lowprofile led drivers with i2c interface. Max16834 highpower led driver with integrated highside led. Analog devices stepup boost led drivers provide current control of multiple leds and support for high brightness led lighting, large format led backlighting, cameraenabled smart devices, and a range of related applications.

Find the right led drivers and led driver ics from maxim integrated portfolio of led driver products covering the full range of efficient switchmode topologies stepdown, stepup, sepic as well as some linear led drivers. Adafruit 12channel 16bit pwm led driver spi interface. Max20069 automotive i 2 ccontrolled 4channel 150ma. We also would like you to check out this breakout board for the tlc5947 pwm driver chip. Analog devices has a very broad line of led driver ics for automotive, display backlighting, handheld, and general highpower lighting applications. Integrated circuits ics pmic led drivers are in stock at digikey. Description the max16834 is a currentmode high brightness led hb led driver for boost, boostbuck, sepic, and high side buck topologies. We also would like you to check out this breakout board for the tlc59711 pwm driver chip. The lm3549 is a high power led driver with up to 2 overcurrentprotection 700ma output current. Led drivers integrated circuits power circuits, lcd, led.

Furthermore, the multichannel buck ics uses an external power mosfet for each channel. Members of this portfolio include i2c compatible programming interfaces, with compact, high efficiency features suited to. This additional operating mode can be useful to supply other high power devices in the system, such as a handsfree audio power amplifier, or any other component requiring a supply voltage higher than the battery voltage refer to tps61052. The tps6105x device is based on a highfrequency synchronousboost topology with constant current sink to drive single white leds. Analog devices has a very broad line of led driver ics for automotive, display backlighting, handheld, and general high power lighting applications. An874 buck configuration high power led driver the circuit and firmware described in this application note demonstrate a minimal parts count driver controller for a lumiled. Ti home semiconductors power management led drivers flash led drivers. Video for building an easy circuit for 1w power led driver. Hi, im trying to build a circuit to control some high power leds thru arduino. The arc1c0608 is an led driver that is so efficient that it is able to save 0.

The efficiency is high over the entire battery voltage range to maximize the input power to led power conversion and minimize battery current draw during flash. When g\ is held low, data from the output storage register is transparent to the output buffers. The max16823 threechannel led driver operates from a 5. Stcf05tbr stcf05tbr led lighting drivers high power. I2c led driver is a high power led driver with i2c control and 12bit resolution. The switching power supply design ensures efficient power transfer between. The small module seen below contains the allegro a6281 ic with three 150ma driver circuits for a high power red, green and bluergb led. Highvoltage, 3channel linear highbrightness led driver. High power bright leds require more current than the typical digital logic output pin can provide and they need a driver circuit. High level input voltage for address pins addr1, addr2 l intvcc 0. Our programmable, low power, high performance products are ideally suited for headup and head mounted displays, multicolor led laser displays, backlight illumination applications, high current laser led systems and lcdlcosdlp portable and pico projectors.

Independent pwm duty cycle control via i2c for each channel. The device is not recommended for switching inductive loads. Nxp semiconductors pca9952 16channel constant current led driver is an i 2 c bus controlled device optimized for dimming and blinking 57ma redgreenblueamber rgba leds for amusement products. Each led output has its own 12bit resolution 4096 steps fixed frequency individual pwm controller that operates. Max7304 maxim integrated 4 i2c interfaced 16port, leveltranslating gpio and led driver with high level of integrated esd protection note 2. Backlight led drivers products microchip technology inc. It has three constant current overtemperatureprotection led drivers and a buck boost smps for driving rgb i2c compatible interface leds with high efficiency. How to use high power led with arduinolow voltage signal. Each ledn output provides its own 8bit resolution 256 steps fixed frequency individual pwm controller operating at 31.

This enables the optimal thermal performance of the drivers under high current situations 1. Max16834 highpower led driver with integrated highside. When data in the output buffers is low, the dmos transistor outputs are off. The tpic2810 device is a monolithic, mediumvoltage, lowcurrent, 8bit shift register design to drive lowside switched resistive loads such as leds. This fully assembled board is a 3channel led shield for high power leds with constant current dynamically programmable from 100ma 700ma per channel.

They are configured as either inductorless charge pump or switching regulatorbased led drivers that support driving white leds in series, parallel or combination. The ic integrates one buckboost converter, one boost converter, two gate driver supplies, and a boostsepic converter that can power one to four strings of leds in the display backlight. I2c led driver uses the national semiconductor lm3409hv chip, which allows for up to 5a led current using the appropriate external power mosfet and components high maximum voltage. To ensure uniform brightness in lcd backlight applications, each led channel delivers an accurate regulated current. Max734 i2cinterfaced 16port, leveltranslating gpio and. Contribute to terahzi2cleddriver development by creating an account on github. Adafruit 24channel 12bit pwm led driver spi interface. The tlc59116 is an i 2 c bus controlled 16channel led driver that is. Ncp5623 triple output i2c controlled rgb led driver the ncp5623 mixed analog circuit is a triple output led driver dedicated to the rgb illumination or backlight lcd display.

Therefore the multichannel led driver ics can achieve high output powers with minimum pcb area and without expensive thermal components. The stcf05 is a high efficiency power supply solution to drive multiple flash leds in camera phones, pdas and other handheld devices. The led driver lights up to 75ma36v of leds in series per channel, and the buck controller generates an adaptive bus voltage supplying the parallel led strings. The device can drive up to six leds in parallel with a total output current of 180 ma. This chip can control 24 separate channels of 12bit pwm output. Contact your local microchip sales representative or distributor for volume and or discount pricing. This chip can control 12 separate channels of 16bit pwm output. Led backlight driver ics control the voltage and current for white leds used to illuminate lcd panels.

Based on the pca9685 controller with pchannel mosfet output drivers, drive led lighting not just little leds, but actual led lighting. The max16834 is a currentmode highbrightness led hb led driver for boost, boostbuck, sepic, and highside buck topologies. Analog devices stepup boost led drivers provide current control of multiple leds. Members of this portfolio include i2ccompatible programming interfaces, with compact, high efficiency. Regulated internal current sinks deliver excellent current and brightness. This device contains an 8bit, serialin, parallelout shift register that feeds an 8. General description the pca9685 is an i2c bus controlled 16channel led controller optimized for redgreenblueamber rgba color backlighting applications. Typical applications include portable appliances such as smartphones, tablets, cameras, notebook pcs as well as displays such as computer monitor and tv. Led drivers are designed for sequential drive so only one driver can be enabled. In addition to driving an nchannel power mosfet switch controlled by the switching controller, it also drives an nchannel pwm dimming switch to achieve led pwm dimming. Led driver integrated circuits for automotive, medical, industrial, and consumer products. Ncp5623 triple output i2c controlled rgb led driver.

Nxp semiconductors pca9952 16channel constant current led driver is an i 2 cbus controlled device optimized for dimming and blinking 57ma redgreenblueamber rgba leds for amusement products. A 1% tolerance, or better, resistor shall be used to get the high est accuracy of the led biases. An external current mirror can be used to bias this pin to dynamically set up the i. Macom offers a leadingedge portfolio of led and laser driver solutions for innovative oem display products. The tlc59116 is an i2c bus controlled 16channel led driver that is optimized for. Id like to know if theres an ic that does current regulation to drive the leds and manages the leds i have 5 of them. Building a driver for absurdly high power leds hackaday. For more details about the circuit and schematic diagram, check. Simple i2c control from an arduino, raspberry pi or other systems. Getting these high power leds are no longer a problem, but powering them certainly is. Rgb led driver the ncp5623b mixed analog circuit is a triple output led driver. Led lighting components are available at mouser electronics from industry leading manufacturers. Semtechs substantial line of ecobrite led driver integrated circuits ics is used prominently for lcd display backlight and led camera flash applications. The circuit is based on a buck topology switching power supply using the onchip comparator peripheral within the pic12f675 microcontroller.