The lp503x device is a 30 or 36channel constant current sink led driver. Sts led array drivers fully integrate all functions required to drive high brightness leds. The triple builtin pwm make easy the independent dimming of each led. An example of such an led driver is the nxp saa1064. Rohm semiconductors bd8119fmm is a 4channel constant current backlight led driver for medium to large automotive displays such as navigation or dashboard panels. The et6326 is a constant current rgb led drivers with i2c interface.
Our i 2 c led controllers enable core functions in some of todays most ubiquitous devices and applications. Led driver with i2c compatible and 3wire serial interface for 8. 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. Simple, 220v, 20ma, temperaturecompensated, constantcurrent. Application note an182 bcr402w led driver ic, application note an182, rev. Javascript must be enabled to view full functionality of our site. The max6969 supply and the leds supply or supplies can power up in any order.
Future electronics has a broad portfolio of led drivers, including led sink driver, constant current led driver and current regulator led driver. 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. Feb 05, 2017 actually, i remember now i had looked at the pca9532. Constant voltage led drivers constant voltage led drivers provide a constant output voltage supply with a maximum current rating.
The ncp5623 mixed analog circuit is a triple output led driver dedicated to the rgb. Led drivers will regulate for constant output current instead of constant output voltage, because leds need to be driven with certain current for specific light output. The lp503x has a 29 khz, 12bit pwm generator for each channel, as well as channelmodule independent color mixing and intensity control, formerly called brightness control registers to enable vivid led effects with zero audible noise. The lp5569 device enters powersave mode when leds are not active, lowering idlecurrent consumption considerably. These comprehend a softstart control, chip over temperature detection and protection. Njw4605 njw4605v i2c controlled white led driver ic. The led strings are connected to internal current sources where the current level is set. As an example from the figure 1 below, variation of 0. Each constant current driver is able to supply maximum current of 80ma per channel.
Constant current sink description cl220 is a high voltage, temperaturecompensated, 20ma constant current regulator. The device operates at up to 220v, and is accurate to 10% over a 5 160v range. Depending on the input voltage and the number of leds used in the led string, the converter can be a buck, boost or buckboost. The max16818 is suitable for use in synchronous and nonsynchronous stepdown buck topologies, as well as in boost, buckboost, sepic, and cuk led drivers. It requires no inductor, provides a low noise operation and minimizes the number of components. The device can drive up to six leds in parallel with a total output current of 180 ma. The led current is set by an external resistor connected to the rset pin. Constant current led drive rotary switchcapable input pair port6, port7 256step pwm individual led intensity control individual led blink rates and common led fade inout rates from 256ms to 4096ms fifo queues up to 16 debounced key events userconfigurable key debounce 9ms to 40ms. Boost current regulators for led stmicroelectronics. The max6969 serialinterfaced led driver provides 16 opendrain, constant current sinking led driver outputs rated at 5. Boost regulators provide the necessary high voltages to drive multiple leds in series, guaranteeing accurate led current matching. These drivers vary the voltage along an electronic circuit which allows current.
Adafruit 24channel 12bit pwm led driver spi interface. Litix automotive led driver ic infineon technologies. Its not constant current, so each led needs a series resistor. The cat4101 is a constantcurrent sink driving a string of highbrightness leds up to 1 a with very low dropout of 0. Buy led drivers products online future electronics. Led driver with audio synchronization,12x12 matrix.
Etk6048, 8chx12 constant current led driver circuit, qfn20. Constant current led drivers are designed for a designated range of output voltages and a fixed output current ma. Writing a 1 to the corresponding pio bit will turn the segment on. Linear current control meets this requirement, as only few very small components are necessary. These i 2 c led controllers work with i 2 c interfaces for applications such as. The fan5702 is a highly integrated and configurable charge chargepump based multiled driver. The lp50xx device is an 18 or 24channel constant current sink led driver. Led driver that is optimized for redgreenblueamber. St offers both single and multichannel highefficiency boost led drivers featuring a wide dimming range, low noise and small footprint. Sep 05, 2012 it has driver circuitry programmable constant current too.
This device is composed with 3channel constant current drivers,stepup switching regulator that can drive up to 24pcs led. With a legal i2c address, the ncp5623 is safe from a data collision stand point when sharing a common i2c bus. Led driver ic analog devices has a very broad line of led driver ics for automotive, display backlighting, handheld, and general highpower lighting applications. 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. The max20069 provides the industrys first solution integrating four i2ccontrolled, 150ma led backlight drivers and a fouroutput thinfilmtransistor liquidcrystal display tft. The lp50xx device is an 9 or 12channel constant current sink led driver. The lp503x device is a 30 or 36channel constantcurrentsink led driver.
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 device includes many functions to protect the chip and the power leds. The marketing status values are defined as follows. Serialin parallelout led driver 24ch constant current led driver ic with 2line serial interface bd2808muvm general description bd2808muvm is 24ch constant current sink led driver with a high output voltage capability. The whole family of linear constant current sources offers footprint compatibility ranging from 1 to 3 output channels with typ. The ic also supports the high currents that nextgeneration displays require, with 150ma per channel in the fourchannel led driver for 8inch or larger displays and higher resolutions. The max6969 serialinterfaced led driver provides 16 opendrain, constantcurrentsinking led driver outputs rated at 5. Led6001 pwmdimmable single channel led driver with. Et6037, 18ch led sink driver 128 step dimming, i2c interface, qfn24.
Bcr linear led driver ics are the best choice when you need to drive led strings supplied by a dc voltage source. Infineons basic led drivers are optimized for the control of low to medium power leds in automotive applications. The maximum current is set by an external resistor. Led backlight driver with integrated lcd bias for automotive. I2c led driver is a high power led driver with i2c control and 12bit resolution features.
Led driver 12v magnitude 20w lindrive transformer led. Toshiba extended its portfolio of automotive nchannel power mosfets by adding 60v ssm3k341r and the 100v ssm3k361r which has low onresistance features and. Tlc5973 3channel, 12bit, pwm constantcurrent led driver. Nxp offers a number of led backlight solutions for all sizes of lcd panels. Archived content is no longer updated and is made available for historical reference only. The singlewire, 3mbps serial interface easyset provides a solution for minimizing wiring cost.
Infineon released bcr430u, a constant current linear led driver ic which delivers drop performance for regulating led current in a single operation. Led driver modules online store future electronics. We also would like you to check out this breakout board for the tlc5947 pwm driver chip. Toshiba extended its portfolio of automotive nchannel power mosfets by adding 60v ssm3k341r and the 100v ssm3k361r which has low onresistance features and suited. The lp5569 led driver maintains good efficiency over a wide operational voltage range by autonomously selecting the best chargepump gain based on led forward voltage requirements. Rgb or rgba led drivers, led status information, led displays, lcd backlights, keypad backlights for cellular phones, or handheld. This device is optimized for driving rgb leds featuring a 6bit current dac for each color. Led controller ics can also be used for more advanced status or illumination control while offloading host processors in lcd displays. They are configured as either inductorless charge pump or switching regulatorbased led drivers that support driving white leds in series, parallel or combination. The fan5702 is a highly integrated and configurable charge chargepump based multi led driver. Automotive infotainment designers can now upgrade to bigger, higher resolution displays with greater ease, reduced cost and smaller solution size with the max20069 from maxim integrated products, inc. The driver uses an original current mode buckboost dcdc converter and requires only a single coil for simplified design. Led driver with i2c compatible and 3wire serial interface. The driver has internal memory for storing the segment data and often supports additional features like brightness control.
Ul listed dimmable led driver 12 volt 40 watt ip67 waterproof 12v led adapter 3. Simple, 220v, 20ma, temperaturecompensated, constant. Lp5018 18channel i2c constantcurrent rgb led driver. Everything else is i2c so its kind of a toss up at this point which way ill go. Find highquality, energyefficient led driver modules at future electronics. The cat4101 is a constant current sink driving a string of highbrightness leds up to 1 a with very low dropout of 0. If the display is cannon cathode, connect the common cathode pin to gnd. The a6281 is a 3channel constant current led driver that has a wide range of output currents.
Lp5009 9channel i2c constantcurrent rgb led driver. The constant current outputs are programmed together to up to 55ma using a single external resistor. The device is compatible with multiple topologies such as boost, sepic and floating load buckboost. Nxp i2c led controllers enable core functions in some of todays most ubiquitous devices and. Once the leds v f voltage is reached, current through. This chip can control 24 separate channels of 12bit pwm output. Led drivers for digital signage quick reference guide rev.
Consult adi marketing for parts specified with wider operating temperature ranges. The device can be used as a twoterminal, constant current source or a constantcurrent sink. Most high brightness leds have a forward voltage between 3 3. It not only provides power to leds, but also regulates the flow of current to offer over voltage protection, short circuit protection and over load protection. An led requires a minimum forward voltage v f before it will turn on. The max16818 is the first led driver controller that enables maxims technology for fast led current transients of up to 20as and 30khz dimming frequency.
Connect the p0p7 pins to the display segments through currentlimiting resistors. While i2c is serial, its a step above the simple clockdata of a classic shift register. Ninechannel i2c rgb led driver with engine control and. Since only the upper limit of the current is fixed, one has to use a constant current led driver along with a constant voltage led driver in order to drive a constant current led.
Infineon bcrs are suitable for driving currents from 10 250ma driving current, making the ideal solution for low and mid power leds. The lp50xx device includes integrated color mixing and brightness control, and preconfiguration simplifies the software coding process. Regulated internal current sinks deliver excellent current and brightness matching to all leds. The tlc5973 is an easytouse, 3channel, 50ma constant sink current led driver. Configure two acmps, each with their in source set to the desired threshold configure luts to enable the led outputs. The njw4605 is a high efficiency multiple strings white led driver for backlight.
Click here for production status of specific part numbers. This product has been released to the market and is available for purchase. Drive commoncathode led digits 23ma constantcurrent led segment drive hexadecimal decodenodecode digit selection 64step digital brightness control slewratelimited segment drivers reduced emi debounces up to eight switches with nkey rollover max6959 only irq output when a key input is debounced max6959 only. The constantcurrent outputs are programmed together to up to 55ma using a single external resistor. In order to power up leds, you need a led driver also known as led power supply. In cellular handsets, led blinkers and dimmers control keypad, fun lighting, and status leds. This voltage varies with the type of led, but is typically in the range of 1. The lt3599 is a stepup dcdc converter designed to drive up to 4strings of leds at up to 120ma per string, and with an output voltage up to 44v.
A wide variety of smd led driver ic options are available to you, there are 996 suppliers who sells smd led driver ic on, mainly located in asia. Leds that are rated to operate on a constant current driver require a designated supply of current usually specified in milliamps ma or amps a. The primary application for this device is for rgb led cluster lamp displays. My choice is between constant current shift registers and i2c with the addition of resistors. Tlc59116 data sheet, product information and support. These devices allow constantcurrent control in a singlechip solution. The needs of a controlled current source the iv curve for led is similar to the iv curve for normal diode, except that it has steeper slope of i f versus v f in the high current region.
Actually, i remember now i had looked at the pca9532. Whether your application needs a high power led driver, constant current led driver, dimmable led driver or led driver ic, youll find them all here. Lp50xx 18, 24channel, 12bit, pwm ultralowquiescentcurrent, i2c rgb led drivers datasheet rev. The device support 4 digits of 8 leds seven segments and. F 100 nf out0 out15 v led v dd clk le oe clk le oe rext 100 nf v dd 10. Instead, it uses i2c to write to internal registers to perform functions led onoff, brightness etc. General description the max7360 i2cinterfaced peripheral provides microprocessors with management of up to 64 key switches, with an additional eight led driversgpios that feature constantcurrent, pwm intensity control, and. The et6312b are four constant current rgb led drivers with i2c interface. It can control 8x16 128 dot led matrix by internal 8channel pmos sws and 16channel led drivers. Max20069 operates over the minus 40c to 105c ambient temperature range and is available in a 6mm x 6mm tqfn package.
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