Adafruit 24-Channel 12-bit PWM LED Driver - SPI Interface - TLC5947Control 24 channels of 12 bit PWM output with the Adafruit TLC5947 breakout board, ideal for LED control. This breakout board features the TLC5947 driver chip capable of controlling 24 separate PWM outputs with constant current and open drain configuration. It's perfect for driving multiple LEDs in series with a supply voltage up to 30V. Only three SPI pins are needed to send data, and the design is chainable allowing multiple boards to be connected