True disconnection between input and output during shutdown
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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LP5811 Synchronous Boost 4-Channel RGBW LED Driver with Autonomous Control datasheet (Rev. B) | PDF | HTML | 02 Dec 2024 |
| User guide | LP5811 Synchronous Boost 4-Channel RGBW LED Driver Register Map | PDF | HTML | 24 Sep 2024 |
For additional terms or required resources, click any title below to view the detail page where available.
The LP5811 and LP5810 evaluation module (EVM) showcases all the features of the LP5811 and LP5810 LED drivers. The LP581XEVM-GUI is used to interface with USB2ANY to the EVM. The EVM has I²C inputs through the USB2ANY interface adapter.
The LP5813/12 evaluation module showcases all the features of the LP5813 and LP5812 4 × 3 matrix RGB LED driver. The difference between the two devices is with or without synchronous boost function. The LP581x graphical user interface (GUI) is used to interface with USB2ANY to the EVM. The (...)
The LP5813 and LP5812 evaluation module (EVM) showcases all the features of the LP5813 and LP5812 4 × 3 matrix RGB LED driver with autonomous control. The difference between two devices is with or without synchronous boost function. Both LP5813 and LP5812 are placed on one board, please select the (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| DSBGA (YBH) | 12 | Ultra Librarian |
| WSON (DRR) | 12 | Ultra Librarian |
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The LP581XEVM-GUI is a evaluation tool for LP581x family devices, it can be used to evaluate the LP581xEVM or customized board through USB2ANY interface adapter and showcases all the features of the LP581x family devices.