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2018年11月19日星期一

EC15 pixel led - Ultra-small SK6812 LED with 1.5x1.5mm size

1, EC15 is one ultra-small SK6812 pixel led chip with 1.5x1.5mm size, it is an embedded control type LED light source integrating control circuit and light-emitting circuit. It contains intelligent digital interface data latch signal shaping and amplifying drive circuit, power supply voltage regulator circuit, built-in constant current circuit and high precision RC oscillator. The output driver adopts the patented PWM technology, which effectively ensures the high color consistency of the light in the pixel.
  The data protocol being used is unipolar RZ communication mode. The 24-bit data is transmitted from the controller to DIN of the first element, and if it is accepted it is extracted pixel to pixel. After an internal data latch, the remaining data is passed through the internal amplification circuit and sent out on the DO port to the remaining pixels. The pixel is reset after the end of DIN. Using automatic shaping forwarding technology makes the number of cascaded pixels without signal transmission only limited by signal transmission speed.
  The LED has a low driving voltage (which allows for environmental protection and energy saving), high brightness, scattering angle, good consistency, low power, and long life. The control circuit is integrated into the LED above.

2. Main Features :
● Easy to design
● Easy to build
● Easy to program

3. Description:
● EC LED internal integrated high-quality external control line serial cascade constant current IC;
●built-in data shaping circuit, a pixel signal is received after wave shaping and output waveform distortion will not guarantee a line;
●The built-in power-on reset and reset circuit, the power does not work;
●gray level adjusting circuit (256 level grayscale adjustable);
● red drive special treatment, color balance;
● line data transmission;
● plastic forward strengthening technology, the transmission distance between two points over 10M;
●Using a typical data transmission frequency of 800 Kbps, when the refresh rate of 30 frames per sec

4. Mechanical Dimensions:
5. PIN configuration
Notes:
1. All dimensions are in millimeters.
2. Tolerance is ±0.1mm unless otherwise noted
5. Product welding plate size
7. General Information
8. Absolute Maximum Ratings (Ta=25℃,VSS=0V)
9. Electrical/Optical Characteristics:

10. The electrical parameters (unless otherwise specified, TA=-20 ~ +70 ℃, VDD=4.5 ~ 5.5V, VSS=0V):
11. The dynamic parameters (Ta=25 ℃):

12. The data transmission time :
1. The protocol uses a unipolar zeroing code. Each symbol must have a low level. Each
symbol in this protocol starts with a high level. The high time width determines the "0" or
"1" code. .
2. When writing programs, the minimum symbol period is 1.2μs.
3. The high time of “0” code and “1” code should be in accordance with the
stipulated range in the above table. The low time requirement of “0” code and “1”code is less than 1.2μs.

13. Timing wavefrom:
        Input code:
         Connection mode:
14. The method of data transmission:
Note: the D1 sends data for MCU, D2, D3, D4 for data forwarding automatic shaping cascade circuit.

15. The data structure of 24bit:
    Note: high starting, in order to send data (G7 - G6 - ...... ..B0)

16. The typical application circuit:
Product signal input and output must be connected in series Protection resistor R1, R1 depends on the size of the cascade lamp beads, the greater the number of cascade, the smaller R1, the general recommended value between 200-2KΩ, usually recommended Worth about 500 euros;

16. Standard LED Performance Graph:
More details, please contact us.
Newstar
www.newstar-ledstrip.com