local dimming

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local dimming

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zhicheng_tao
Contributor I

寻求车载级别 local dimming LED driver IC ,16 channel 以上(包含)。

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reyes
NXP TechSupport
NXP TechSupport

Hi,

I recommend you to take a look at the PCA9955B: https://www.nxp.com/docs/en/data-sheet/PCA9955B.pdf

 

The PCA9955B is an I2C-bus controlled 16-channel constant current LED driver optimized for dimming and blinking 57 mA Red/Green/Blue/Amber (RGBA) LEDs in amusement products. Each LED output has its own 8-bit resolution (256 steps) fixed frequency individual PWM controller that operates at 31.25 kHz with a duty cycle that is adjustable from 0 % to 100 % to allow the LED to be set to a specific brightness value.


Have a great day,
Jose

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