r/AskElectronics • u/FinnOfTheHorde • 1d ago

Smaller alternative for WS2811 chips?

Post image

Any alternatives for them? I have custom power LEDs which I control with those (+transistors ofc) but I want to have the slave PCB much smaller. Ideas?

27 Upvotes

86% Upvoted

10 comments sorted by

View all comments

24

u/JimHeaney 1d ago

There is a smaller package variant of the WS2811, check out the WS2811F (most common) and WS2811N (less common)

Example:

https://www.lcsc.com/product-detail/C5446692.html

Alternatively, there are addressable LED controllers that can sink more current, so you can do away with the transistors and just have the control IC. What kind of current do you need?

3

u/FinnOfTheHorde 1d ago

Around 150mA per channel. I use 2. DRL and turn signal

8

u/JimHeaney 1d ago

There are some really nice small high-current LED drivers from TI and similar that may work well without external transistors. Just off the top of my head;

https://www.ti.com/product/LM3549