The LP5811 is a
synchronous boost
4-channel RGBW LED driver with
autonomous animation engine control. The device is ideal to support battery-powered
applications with 0.5V to 5.5V input voltage range, and it has ultra-low normal
operation current with 0.4mA (typical) when illuminate LEDs.
The integrated synchronous boost
converter maintains excellent efficiency and keeps the brightness of LEDs stable over a wide
operating voltage range. Output voltage can be selected for different LED forward voltage
from 3V to 5.5V with 0.1V step. The boost converter can power not only the LEDs driven by
the device itself, but also other loads in the system. If the boost converter need to be
bypassed, VOUT is used as the power supply input for the LED driver blocks.
Both analog dimming and PWM dimming
methods are adopted to achieve powerful dimming performance. The output current of each LED
can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bit PWM
generator enables smooth and audible-noise-free dimming control for LED brightness.
The autonomous animation engine can
significantly reduce the real-time loading of controller. Each LED can be configured through
the related registers to realize vivid and fancy lighting effects. The device can generate
6MHz clock signal and use it for synchronizing the lighting effects among multiple devices.
The LP5811 is a
synchronous boost
4-channel RGBW LED driver with
autonomous animation engine control. The device is ideal to support battery-powered
applications with 0.5V to 5.5V input voltage range, and it has ultra-low normal
operation current with 0.4mA (typical) when illuminate LEDs.
The integrated synchronous boost
converter maintains excellent efficiency and keeps the brightness of LEDs stable over a wide
operating voltage range. Output voltage can be selected for different LED forward voltage
from 3V to 5.5V with 0.1V step. The boost converter can power not only the LEDs driven by
the device itself, but also other loads in the system. If the boost converter need to be
bypassed, VOUT is used as the power supply input for the LED driver blocks.
Both analog dimming and PWM dimming
methods are adopted to achieve powerful dimming performance. The output current of each LED
can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bit PWM
generator enables smooth and audible-noise-free dimming control for LED brightness.
The autonomous animation engine can
significantly reduce the real-time loading of controller. Each LED can be configured through
the related registers to realize vivid and fancy lighting effects. The device can generate
6MHz clock signal and use it for synchronizing the lighting effects among multiple devices.