PCA9955BTW-ARD

PCA9955BTW-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.

• PCA9955BTW: 16-channel FM+ I²C-bus 57MA/20V constant-current LED driver
• Support up to four groups of LED gradation control
• Each LED channel assigned to one of four groups
• Programmable gradation time and rate for ramp-up and/or ramp-down operation
• Programmable hold-on time after ramp-up and hold-off time
• Programmable brightness current output adjustment
• Supply voltage: 3V to 5.5V, low standby current (170µA)
• 57mA / 20V output drive per channel, output current adjusts through resistor at REXT pin
• 1MHz I2C bus, output enable (/OE) pin
• HTSSOP28 plastic thermal enhanced thin shrink small outline package

목차

Assembled and tested evaluation board in an anti-static bag, Quick start guide.