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Part Number
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PCA9955A |
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Manufacturer
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NXP |
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Description
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16-channel Fm+ I2C-bus 57 mA/20 V constant current LED driver |
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Published
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Feb 1, 2019 |
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Detailed Description
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PCA9955A
16-channel Fm+ I2C-bus 57 mA/20 V constant current LED driver
Rev. 3 — 14 October 2014
Product data sheet
1...
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Datasheet
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PCA9955A
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Overview
PCA9955A
16-channel Fm+ I2C-bus 57 mA/20 V constant current LED driver
Rev.
3 — 14 October 2014
Product data sheet
1.
General description
The PCA9955A 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.
An additional 8-bit resolution (256 steps) group PWM controller has both a fixed frequency of 122 Hz and an adjustable frequency between 15 Hz t...
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