1. Product Overview :
SK9818MICRO-D is an intelligent external control LED light source which integrates control circuit and luminous
circuit. Its appearance is the same as that of a SMD 2222 top emitting LED lamp bead, and each element is a pixel. The pixel
contains intelligent digital interface data latch signal shaping and amplifying driving circuit, power supply voltage stabilizing
circuit, built-in constant current circuit, high-precision RC oscillator, and patented PWM technology is used for output drive,
which effectively ensures the high color consistency of the light in the pixel.
The data protocol adopts the communication mode of unipolar return code. After the pixel is powered on and reset, the din
terminal receives the data transmitted from the controller. The first 48 bit data is extracted by the first pixel and sent to the data
latch inside the pixel. The remaining data is reshaped and amplified by the internal shaping processing circuit and then
transferred through the do port The output is sent to the next cascaded pixel, and the signal is reduced by 48 bit after each pixel
is transmitted. The number of cascaded pixels is not limited by signal transmission, but only limited by the speed of signal
transmission.
2. Main applications:
● Led full-color light string, led full-color module, led magic soft and hard light strip, LED guardrail tube, led appearance /
scene lighting
3. Description:
● High quality external control single line serial cascade constant current IC integrated in top SMD;
● The control circuit and chip are integrated into SMD 2222 components to form a complete external control pixel, with
uniform color temperature effect and high consistency.
● The built-in data shaping circuit ensures that the waveform distortion of the line will not accumulate after any pixel
receives the signal through waveform shaping.
● Power on reset circuit and power down reset circuit are built in, and the light is not on after power on;
● OUT G/R/B each 5bits current gain adjustment position, output gray level: 65536;
● Maximum output constant current value 6.5 Ma; also through the controller output constant current value
● Single line data transmission, unlimited cascade.
● The transmission distance between two points is more than 10m
● Serial cascade interface, which can receive and decode data through one signal line.
4.Mechanical Dimensions:
5. PIN configuration:
6. Recommended dimensions for PCB(mm):
7. General description of product naming:
