WS2801 IC

Product Description

Description: You may recognize the WS2801from our addressable RGB LED strips. These 3-channel constant current LED drivers are great for controlling chains of RGB LEDs. The IC is controlled by a 2-wire serial control scheme that allows multiple ICs to be chained together.

Use a handful of these ICs in conjunction with some RGB LEDs to make color displays, or with regular LEDs for a monochrome display three times the size. Or just the WS2801 to free up PWM pins on your microntroller by controlling multiple LEDs with two pins.

Features:

• 
  2-wire control scheme reduces system cost


• 
  Built-in PWM dimming scheme for each channel


• 
  PWM free-run capability


• 
  Power supply voltage 3.3-5.5v


• 
  Supports both constant current and constant voltage drive modes


• 
  Wide constant current range from 5-150mA

Documents:

• 
  Datasheet (WS2801)