PCA9957HN-ARD

PCA9957HN-ARD is a LED Driver Arduino® shield evaluation board. The 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.

• PCA9957 24-channel SPI serial bus 32mA/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 6bit resolution pre-set current configuration with an absolution accuracy of ±8%
• Supply voltage range from 2.7V to 5.5V, low standby current of 170µA
• 10MHz SPI interface, output enable (/OE) pin