Description
PCA9959 is a daisy-chain SPI-compatible 4-wire serial bus controlled 24-channel constant preset current LED driver, optimized for dimming and blinking 63 mA Red/ Green/Blue/Amber (RGBA) LEDs.
Features
- 24 LED drivers, each output programmable at:.
- Off.
- On.
- 6 bits programmable LED brightness.
- Programmable LED output delay to reduce EMI and surge currents.
- Gradation control for all channels.
- Each channel can assign to one of four gradation control groups.
- 64 grids for gradation control for each channel.
- Programmable grid duration time.
- Four preset current options for each channel during gradation control.
PCA9959-NXP.pdf
