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Expansion Board, PCA9959, LED Driver, Power Management, Arduino Platform


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PCA9959HN-ARD   Datasheet
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Arduino Shield Board

EVKs to evaluate the LED Controller

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Technical Documents (1)

CAD Downloads


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CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Product Overview

PCA9959HN-ARD Arduino shield allows easy integration with Arduino EVKs to evaluate the LED controller features for colour mixing, blinking and dimming LEDs. A graphical interface allows the user to easily explore the different functions of the driver to create an evaluation system.
  • PCA9959 24-channel SPI serial bus 63mA/5.5V constant current LED driver
  • Support up to four groups of LED gradation control
  • Each LED channel assigned to one of four groups
  • For each group, PCA9959 supports 64-grid brightness control
  • Each LED output has its own 6-bit resolution (64 steps) preset current configuration
  • Supply voltage range from 2.7V to 5.5V, Low standby current (170µA)
  • 32mA / 5.5V output drive per channel
  • Output current adjusts through resistor at REXT pin
  • 10MHz SPI interface, output enable (/OE) pin


PCA9959HN-ARD Arduino shield, Quick reference card, Additional hardware required: USB A-to-MicroB cable (not included).

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More stock available week commencing 3/4/24
Standard lead time for this product is 50 weeks.

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