PCA9957 - 24-channel SPI serial bus 32mA/5.5V constant current LED driver

Product Overview

NXP

PCA9957 24-channel SPI serial bus 32mA/5.5V constant current LED driver by NXP - Datasheet Preview — Datasheet preview – PCA9957

Datasheet Details

Part number	PCA9957
Manufacturer	NXP
File Size	753.14 KB
Description	24-channel SPI serial bus 32mA/5.5V constant current LED driver
Datasheet	PCA9957 Datasheet
Additional preview pages of the PCA9957 datasheet.

Product details

Description

The PCA9957 is a daisy-chain SPI-compatible 4-wire serial bus controlled 24-channel constant current LED driver optimized for dimming and blinking 32 mA Red/Green/Blue/Amber (RGBA) LEDs.

Features

24 LED drivers. Each output programmable at:.
Off.
On.
8 bits programmable LED brightness.
8 bits programmable group dimming/blinking mixed with individual LED brightness.
Programmable LED output delay to reduce EMI and surge currents.
Gradation control for all channels.
Each channel can be assigned to one of six gradation control groups.
Programmable gradation time and rate for ramp-up and/or ramp-down operations.
Programmable step time (6-bit).

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Published: Apr 2, 2020 |