Now there are more and more led with driver , so people may be confuse what is the difference between of them , Now , let me talk about them .
Step 1: APA102 and SK9822
Second ,APA102,SK9822 Double signal , One is data signal , another is clock signal , 2 signal make high PWM frequencymuch faster than SK6822,WS2813, SK6812,WS2812B, So when big project , they will not stuck on big project because of the signal transfer too big . By the way APA102 PWM is faster than SK9822,APA102 PWM Frequency is 19khz , SK9822 only have 4.7khZ, and From the picture . you can see both of the APA102 and SK9822 LED don't need capacitor ,it is because the die of them have the function on Filtering the signal .the difference between them is the first signal , the first signal ,Old SK9822 is a base Synchronization signal, and APA102 LED don't have this signal . normally they can be control by same controller.and compatible , but sometimes with some special controller , they can not .
Now New SK9822 have been redesigned , and it have same first signal as APA102 led now ., can use same controller . As APA102 IC production time is so Long ,SK9822 is a good choose to replace APA102 LED .
Step 2: WS2813 and SK6822 LED
First ,WS2813 and SK6822 dual signal , both of the signal is data , why 2 data signal?, it is for led strip one led is broken , another data still can work ,unless 2 next led Two successive LED is broken then the led strip can not working .
which can make the led strip one is broken will not affect another led working ,but the frequency speed WS2813 is much better than WS2812B . it is much better than ws2812b and sk6812, and when WS2813 VS WS2812B ,you can think WS2813 LED is ws2812b updated version , and SK6822 is sk6812 updated version , but we can see the difference from the led strip picture between the WS2813 AND and sk6822, You can see the SK6822 LED strip have led chip and capacitors in the led strip , but WS2813 LED strip only have led chip on the surface of led strip , this is Becasue WS2813 led chip not only have the ic ,but also capacitors package in 5050.
by the way ,When i compare the datasheets WS2813 and SK6822 , The SK6822 specs mention ESD pressure (ElectroStatic Discharge), but WS2813 does not., so i can not make sure WS2813 have it or not. but WS2813 is really very good as the Capacitors is packaged in 5050, and have much faster frequency speed than WS2812B.
Step 3: How to Use Those Led
Many of my customer complaint about the led is easy to be broken sometimes . as they have not bake them before they use those led chip , those led chip MLS lever is 6, which mean they need to bake before you welding them . you need to bake them 24 hours on 60-70 degree enviroment ,after you bake , you need to use them in 24hours , and
the welding temperature is better not more than 240degree, on 230-235degree is ok .