16 led driver ic design

Cbus controlled 16bit led driver optimized for voltage switch dimming and blinking 100 ma redgreenblueamber rgba leds. The as1112 includes very fast output drivers to have maintain accurracy at low duty cycles. Dec 04, 2015 the base of the unit is a onepiece plastic housing that holds the acdc converter circuit board. The highvoltage outputs and the backplane driver are designed to source and sink 1. It is particularly designed to deliver best performance of total harmonic distortions thd and power factor pf. The max16840 is an led driver ic for lighting applications. There are many ics available to drive a 7 segment display like ic 4026, 4033 etc and we have covered driving 7segment using 4026 and using 4033. Maxims continually expanding portfolio includes products covering the full range of efficient switchmode topologies stepdown, stepup, sepic as well as some linear led drivers. F 100 nf out0 out15 v led v dd clk le oe clk le oe rext 100 nf v dd 10. Our extensive led driver ic product portfolio, design tools, and technical resources can help you add innovative lighting features to your design. Low output voltage operation on the led channels as low as 0.

The ic also incorporates a highly reliable, inbuilt derating function, led open detection, short circuit. For buck topology, the ild4000 and ild6000 families are the best fit. The lytswitch1 family is ideal for singlestage, high pf constant current led bulbs and tubes. The max6971 serialinterfaced led driver provides 16 opendrain, constantcurrentsinking led driver outputs rated at 36v. In cellular handsets, led blinkers and dimmers control keypad, fun lighting, and. Led driver ic for lighting applications stmicroelectronics. But the discrete wires between the circuit board and the led assembly appear to have been. Overview this reference design details a driver circuit using the max16820 hysteretic led driver for a 4led mr16 lamp with an associated power source max5033 for a pulsed air cooler. Using one is very important in preventing damage to your leds as the forward voltage v f of a highpower led changes with temperature. The tlc5940 is a 16 channel, constantcurrent sink led driver. These i 2 c led controllers work with i 2 c interfaces for applications such as.

Adafruit 12channel 16bit pwm led driver spi interface. The max6969 serialinterfaced led driver provides 16 opendrain, constantcurrentsinking led driver outputs rated at 5. Bsod 1218x1w constant current 300ma high power led driver ac 85. This can be done with a spicompatible serial interface. Connect enb pin to vin for standby off connect enb pin to gnd for standby on 14 enb input regulated output voltage. An led driver is an electrical device that regulates power to an led or a string of leds.

Icl5102hv control ic for led drivers offers a unique onepackage solution for lighting applications up to 350w, supporting llclcc topology. The as1112 is a spi interfaced, 100ma 16channel direct led driver ic with 12bit internal pwm and 6bit analog current adjustment. The lt3754 is a 16channel led driver with a stepup. Power integrations led driver ics combine controller and high voltage switching. Zxsc380 single or multi cell led driver solution description the zxsc380 is a highly integrated single or multi cell led driver for applications where stepup voltage conversion from a very low input voltage is required. Connect a 1 uf capacitor to this pin for regulator stability 16.

The as1112 is a spi interfaced, 100ma 16 channel direct led driver ic with 12bit internal pwm and 6bit analog current adjustment. The led driver lights up to 75ma36v of leds in series per channel, and the buck controller generates an adaptive. The as1112 is a 16channel led driver with dot correction and greyscale pwm. American lighting leddr12700 led constant current hardwire driver 700ma, class 2, 312 watts, nondimming. Detects amount of power required by the lights automatically within its published operational limits. Two wires connect it to the pentagonshaped tower holding 18 leds, three on each face.

Power integrations led driver ic families are used in the worlds most reliable, longest lasting led drivers. Single channel lin rgb controller ic gen 2 mlx81112. Configurable lin slave led driver ic mlx81112 melexis. Each ic must operate under different conditions, including dissipating the power associated with 16 channels operating all at once. Led segment and matrix driver cypress semiconductor. A look inside five led bulbs designed to replace 60w incandescents reveals design regimes ranging from dead simple to. It is a crucial piece to an led circuit and to operate without one will result in system failure. Led light par, down, tube, flat, ceiling, flood, high bay, street light nondimming, phasecut dimming analog dimming 010 ncl30170adr2g vdim.

Each channel has an individually adjustable 4096step grayscale pwm brightness control and a 64step, constantcurrent sink dot correction. Richtek has developed special mr 16 led drivers to achieve optimal electronic transformer compatibility. Mouser is an authorized distributor for many led display driver manufacturers. The constantcurrent outputs are programmed together to up to 55ma using a single external resistor. Circuit diagram of a fixed frequency led driver using mp3302 led driver ic is shown in the diagram fig4 below. Mps led lighting drivers provide solutions for acdc and dcdc lighting. The max16809s currentmode pwm controller regulates the necessary voltage t. Inolux 5050 rgb led 4pin with integrated ic inpi554fch. Features aecq100 qualifiednote1 led constantcurrent controller pwm dimming function led current derating function led open detection.

Led channel currents are programmed together via an external rset resistor. The as1110 is a 100ma 16channel led driver ideal for fixed or slowrolling displays using static or multiplexed led matrix and dimming functions as large led matrix displays, mixed led. This cd4511 ic is basically a bcd to 7segment decoder driver ic, using which you can convert a binary number into a decimal. The first stage is a boost converter with input current control and output voltage control. In this tutorial we are going to drive 7segment display with ic 4511. Dcdc led driver ics with efficiencies up to 98%, dimming level down to 0. It can detect openshort led position during operation. Minimizing light flicker in led lighting applications. Max16840 led driver with integrated mosfet for mr16 and. The lt37451 integrates a 16channel led driver with a 55v buck controller.

Mr16 7w 10w control board using ild4001 step down led controller en. Instruments semiconductor products and disclaimers thereto appears at the end of this. The family incorporates a highvoltage mosfet with a variable ontime crm controller. The constant current outputs are programmed together to up to 55ma using a single external. Led display drivers are available at mouser electronics from industry leading manufacturers. The evaluation kit is powered via an external power supply and must also be controlled via an external device. The as1110 is a 100ma 16 channel led driver ideal for fixed or slowrolling displays using static or multiplexed led matrix and dimming functions as large led matrix displays, mixed led display in public transports, large displays in stadiums and public areas, emergency light indicators, and traffic signs.

Design solution for automotive lcd displays utilizing led. American bright optoelectronics corporation ams analog devices inc. The basic operation of this circuit is also similar to that of the led driver shown in fig 2. A proprietary inputcurrent control scheme allows led lamps based on this device to be compatible with electronic transformers, and dimmable with. Driving a 7segment display using a bcd to 7 segment. Design guide for a linear led controller ic with feedback loop to primary side. 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. As a simple project, ive built the driver circuit and connected it to a highpower led and a powerbrick, making a plugin light. American lighting led dr12700 led constant current hardwire driver 700ma, class 2, 312 watts, nondimming. Ild6150ild6070 60v buck led driver ic with high accuracy. A 16bits constantcurrent led driver integrated circuit abbreviated as driver is presented in this paper.

Led7708 16 channels x 85 ma led driver with boost controller and 4wire serial interface, led7708tr, led7708, stmicroelectronics. Led drivers for automotive applications design guide. The led controller enables power management for industrial, commercial and residential lighting and illumination. Led drivers and backlighting automotive, led, oled. Zxsc380 single or multi cell led driver solution description the zxsc380 is a highly integrated single or multi cell led driver for applications where stepup voltage conversion from a very. The demoboard uses supertexs hv9911 ic in a boost topology. Each led output has its own 8bit resolution 256 steps fixed frequency individual pwm controller that operates at 97 khz with a duty cycle that is adjustable from 0 % to 99. Mr16 led driver with a 5v auxiliary output to power a. Cat4016, cav4016 16channel constant current led driver. Led driver ic analog devices has a very broad line of led driver ics for automotive, display backlighting, handheld, and general highpower lighting applications. Led driver ic s highbrightness led drivers are integrated circuits that are optimized to efficiently drive strings of highbrightness leds. The hv9911db2 is an led driver capable of driving up to twenty 100ma leds in series from an input of 9 16v dc. Cat4016, cav4016 16channel constant current led driver description the cat4016 is a 16 channel constant current driver for led billboard and other general display applications. Tlc5940 16channel led driver weeprom dot correction.

The driver provides 16 opendrain, constant current sinking led driver outputs. The circuit can drive a string of 10 white leds in series. Ic led driver offline 2a 8so 2,500 immediate available. For applications requiring led fault detection, refer to the max6984, which automatically detects opencircuit leds. The tlc5940 is a 16channel, constantcurrent sink led driver. The as1115 is single chip solution including a led driver for 64leds and 16 keys ideal for sevensegment or dot matrix user interface displays of settop boxes. The max6969 supply and the leds supply or supplies can power up in any order. The connections between the boards appear to have been reflow soldered. Also included is a max5033 24vto5v, 150ma switching power supply to power a nuventix pulsating led cooler. Analog devices has a very broad line of led driver ics for automotive. F out0 out15 sdi gnd gnd vdd vdd not to scale 24contact qfn 4 mm. Ild6150ild6070 60 v buck led driver ic with high accuracy and efficiency operation, design guide and performance about this document scope and purpose this application note introduces infineons hysteretic buck dcdc led driver ild6150ild6070 for general lighting applications. Design guide lighting ics linear led controller 60v bcr601. Max16809 integrated 16channel led driver with switchmode.

Panasonic provides a wide variety of led driver ics for illumination of mobile phones, smartphones, home electrical appliances, and others. The max6971 supply and the leds supply or supplies can power up in any order. Driving a 7segment display using a bcd to 7 segment driver. Our i 2 c led controllers enable core functions in some of todays most ubiquitous devices and applications. Preliminary product inpi554fch specifications are subject to change without notice. The constantcurrent outputs are programmed together to up to 55ma using a single external. Specifications over temperature are guaranteed by design. An117 dcdc umodule regulator printed circuit board design guidelines pdf. Product index integrated circuits ics pmic led drivers. The as1110 is a 100ma 16channel led driver ideal for fixed or slowrolling displays using static or multiplexed led matrix and dimming functions as large led matrix displays, mixed led display in public transports, large displays in stadiums and public areas, emergency light indicators, and traffic signs. It includes all the necessary features to design lowcomponentcount led drivers for 12v ac and 24v ac input e. Led drivers for automotive applications design uide. The dot correction adjusts the brightness variations between led channels and other led drivers.

The lt37451 integrates a 16 channel led driver with a 55v buck controller. Richtek has developed special mr16 led drivers to achieve optimal electronic transformer compatibility. Infineon offers a broad portfolio of highly integrated dcdc led driver ics that support currents from 150ma to 3a, making. High brightness led driver ic an30888a is a boost buckboost buck dcdc. It is designed for lcd backlighting and other led lighting applications with multiple strings of leds. Max16840 led driver with integrated mosfet for mr16 and other.

F 100 nf out0 out15 v led v dd clk le oe clk le oe rext. In cellular handsets, led blinkers and dimmers control keypad, fun lighting, and status leds. Led current can be reduced according to the duty of this clock pulse to create dimming effect 12 pwm input standby onoff control. They are configured as either inductorless charge pump or switching regulatorbased led drivers that support driving white leds in series, parallel or combination. Rgb or rgba led drivers, led status information, led displays, lcd backlights, keypad backlights for cellular phones, or handheld devices. The max16809 is an integrated, highefficiency white or rgb led driver. Led controller ics can also be used for more advanced status or illumination control while offloading host processors in lcd displays.