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

文件：858.35 Kbytes 页数：56 Pages

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丝印：P9957；Package：HVQFN40；24-channel SPI serial bus 32 mA/5.5 V constant current LED driver

文件：858.35 Kbytes 页数：56 Pages

恩XP

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

文件：858.35 Kbytes 页数：56 Pages

恩XP

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

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. \nEach LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operate \n• 24 LED drivers. Each output programmable at:\n• Off\n• On\n• 8 bits programmable LED brightness\n• 8 bits programmable group dimming/blinking mixed with individual LED brightness\n• Programmable LED output delay to reduce EMI and surge currents\n• Gradation control for all channels\n• Each chann;

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