The LP5569 device is a programmable, easy-to-use 9-channel I2C
LED driver designed to produce lighting effects for various applications. The LED driver is
equipped with an internal SRAM memory for user-programmed sequences and three programmable LED
engines, which allow operation without processor control. Autonomous operation reduces system power
consumption when the processor is put in sleep mode.
A high-efficiency charge pump enables the driving of LEDs with high
VF, even with 2.5-V input voltage. The LP5569 LED driver maintains good
efficiency over a wide operational voltage range by autonomously selecting the best charge-pump
gain based on LED forward voltage requirements.
The LP5569 device enters power-save mode when LEDs are not active, lowering idle-current
consumption considerably. A flexible digital interface allows the connection of up to eight LP5569
devices with a unique I2C slave address for each device in the same
system, which supports synchronization of the lighting effects among all devices.
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