Model no. KL591 (5050RGBYIC LED)
KL591 (RGBYIC LED ) is four channels LED constant current adjustable driver IC with function of internal control synchronizing, which can achieve a wide range of display as MCU inputs one group of data set by constant current and PWM .
When input signal is disconnected, it can realize synchronized fixation of colorful pattern change and prevent in-operation of subsequent cascade chip caused by chip damage. Internal chip is integrated with MCU solidification program and single wire digital interface, data flip-latch, LED constant current driver, circuit, etc.
Internal VDD pin is integrated with 5V regulator with less peripheral devices.
Adopt power CMOS technology
5 V voltage-regulator tube is built into VDD, and the voltage supports 6-24 V after cascading the resistor
Constant current can achieve level 64 adjustment (6.5 mA-38mA)
PWM brightness controls circuit, and 256 brightness is adjustable
Accurate current output value
Single line serial concatenated port
Oscillation mode: build in RC vibration and conduct clock synchronization according to signals  on data line. After receiving the data from this unit, it can reproduce follow-up data and send it  to lower level through data output end, and signals will not be distorted and reduced along with cascade
Build in power on reset circuit, and after powering on reset, an registers are initialized to zero
External control mode data transmission rate is 800 KHZ
Internal control mode chip sends 1024 points of data 
In addition to the existing 16777216 color, an additional color "yellow Y" has been added in the traditional RGB color, widening the entire gamut, makingLed can be more vividly yellow gold,  the color is more realistic comparing with the traditional RGB RGB color, hence, the screen colors look is moredetails, bringing immense visual  real color appeal, the quality light is available in different RGBY colors. The LED lighting product can be adopted to upgrade your existing strip lights.
Features:
Voltage: 5V, W: 0.4W
R: 620-630 nm, 2-3 lm/ 16mA
G: 515-525 nm, 6-7 lm/ 16mA
B: 460-470 nm, 1-2 lm/ 16mA
Y: 585-595 nm, 2-3 lm/ 16 mA
 
Lens Type:  Water Clear
Available in RGBY different colour
 
Applications:
Upgrade to New RGBY Light LED strip light.
Applies to guardrail tube, point source and LED decorative products. 
Full color  Indoor/Outdoor decoration light

Material:
Package: Top SMD