Discreet APA102 or SK9822?

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johnyradio
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Discreet APA102 or SK9822?

hello

i’ve purchased some hi-watt RGB LED’s, similar to these:


https://www.ebay.com/itm/100W-100Watt-RGB-Red-Green-Blue-High-Power-LED-...

i want to make an addressable string of 50 of these big guys, preferably using 4-wire protocol (with clock wire).

How? I don’t mind if it’s a chip or a whole module. Also don’t mind if it uses some other protocol— does not have to be a standard.

I cannot find a discreet APA102 or SK9822— those chips seem only to be available with an on-board LED.

Could any of these work?
https://www.ebay.com/itm/PCA9685-16-Channel-PWM-Servo-RGB-LED-Driver-I2C...

https://www.ebay.com/itm/RGB-LED-Light-Modulator-Programmable-PWM-Contro...

https://www.ebay.com/itm/PCA9685-16-Channel-PWM-Servo-RGB-LED-Driver-I2C...

https://www.ebay.com/itm/9-channels-RGB-bi-color-LED-driver-w-256-level-...

https://www.ebay.com/itm/10pc-Worldsemi-WS2801SO-3-Channel-RGB-Constant-...

thx

Edited by: johnyradio on 11/12/2017 - 14:03
vwpieces
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I really have no clue, but what driver are you considering for each LED?
Driver may limit your choices on what to do or how. DMX stage lighting controlers?

zeroflow
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The P9813 looks like it can do the job for you.

I didn’t do a full analysis but in the worst case you could use it as a simple PWM generator.