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PCA9959 Datasheet Led Driver

Manufacturer: NXP Semiconductors

Overview: PCA9959 24-channel SPI serial bus 63 mA/5.5 V constant current LED driver Rev. 1.

General 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.

Each LED output has its own 6-bit resolution (64 steps) preset current configuration, with an absolute accuracy of ±8 %.

PCA9959 supports up to four groups of LED gradation control, with each LED channel assigned to one of the groups.

Key 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 Distributor