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LP5811

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LP5811

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产品详情

Number of channels 4 LED current per channel (mA) 50 LED configuration Parallel Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 0.5 Vin (max) (V) 5.5 Iout (max) (A) 0.2 Features Analog/PWM mixed dimming, Constant current, I2C control, LED Open Detection, LED Short Detection, Programmable lighting engines, Thermal shutdown Iq (typ) (mA) 0.4 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 4 LED current per channel (mA) 50 LED configuration Parallel Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 0.5 Vin (max) (V) 5.5 Iout (max) (A) 0.2 Features Analog/PWM mixed dimming, Constant current, I2C control, LED Open Detection, LED Short Detection, Programmable lighting engines, Thermal shutdown Iq (typ) (mA) 0.4 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog
WSON (DRR) 12 9 mm² (3 mm × 3 mm) DSBGA (YBH) 12 2.5116 mm² (1.82 mm × 1.38 mm)
  • Operating voltage range:
    • Input voltage (VIN) range: 0.5V to 5.5V
    • 1.8V minimum input voltage for start-up
    • Logic pins compatible with 1.8V, 3.3V, and 5V
  • High efficiency synchronous boost converter
    • Output voltage (VOUT) range: 3V to 5.5V
    • 140mΩ (HS) / 60mΩ (LS) MOSFETs
    • 1.6A valley switching current limit
    • 95% efficiency at VIN = 4.2V, VOUT = 5.0V, IOUT = 300mA
    • Pass-through mode when VIN > VOUT setting

    • True disconnection between input and output during shutdown

  • 4 constant current sinks with high precision:
    • 0.1mA to 51mA per current sink
    • Device-to-device error: max ±5%
    • Channel-to-channel error: max ±5%
    • Ultra-low headroom voltage: 110mV (typ.) at 25.5mA; 210mV (typ.) at 51mA
    • PWM phase shift configurable for each LED
  • Ultra-low power consumption:
    • Shutdown: ISD = 0.1µA (typical) when EN = Low
    • Standby: ISTB = 26µA (typical) when EN = High and CHIP_EN = 0 (data retained)
    • Active: INOR = 0.45mA (typical) when LED current = 25.5mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5mA or 51mA
    • Individual 8-bit Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 24kHz
    • Individual 8-bit PWM dimming resolution
    • Linear or exponential dimming curves
  • Autonomous animation engine control
  • Individual LED dot open/short detection
  • Integrated de-ghosting function
  • 1MHz (max.) I2C interface
  • –40°C to 85°C operating temperature range
  • Operating voltage range:
    • Input voltage (VIN) range: 0.5V to 5.5V
    • 1.8V minimum input voltage for start-up
    • Logic pins compatible with 1.8V, 3.3V, and 5V
  • High efficiency synchronous boost converter
    • Output voltage (VOUT) range: 3V to 5.5V
    • 140mΩ (HS) / 60mΩ (LS) MOSFETs
    • 1.6A valley switching current limit
    • 95% efficiency at VIN = 4.2V, VOUT = 5.0V, IOUT = 300mA
    • Pass-through mode when VIN > VOUT setting

    • True disconnection between input and output during shutdown

  • 4 constant current sinks with high precision:
    • 0.1mA to 51mA per current sink
    • Device-to-device error: max ±5%
    • Channel-to-channel error: max ±5%
    • Ultra-low headroom voltage: 110mV (typ.) at 25.5mA; 210mV (typ.) at 51mA
    • PWM phase shift configurable for each LED
  • Ultra-low power consumption:
    • Shutdown: ISD = 0.1µA (typical) when EN = Low
    • Standby: ISTB = 26µA (typical) when EN = High and CHIP_EN = 0 (data retained)
    • Active: INOR = 0.45mA (typical) when LED current = 25.5mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5mA or 51mA
    • Individual 8-bit Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 24kHz
    • Individual 8-bit PWM dimming resolution
    • Linear or exponential dimming curves
  • Autonomous animation engine control
  • Individual LED dot open/short detection
  • Integrated de-ghosting function
  • 1MHz (max.) I2C interface
  • –40°C to 85°C operating temperature range

The LP5811 is a synchronous boost 4-channel RGBW LED driver with autonomous animation engine control. The device is designed to support battery-powered applications with 0.5V to 5.5V input voltage range, and the device 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, 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 the signal 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 designed to support battery-powered applications with 0.5V to 5.5V input voltage range, and the device 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, 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 the signal for synchronizing the lighting effects among multiple devices.

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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 LP5811 Synchronous Boost 4-Channel RGBW LED Driver with Autonomous Control 数据表 (Rev. D) PDF | HTML 2026-10-14
* 用户指南 LP5811 Synchronous Boost 4-Channel RGBW LED Driver Register Map PDF | HTML 2024-9-24
用户指南 LP5813 示例代码 PDF | HTML 英语版 PDF | HTML 2025-1-24

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

LP5811-10EVM — LP5811 和 LP5810 评估模块

LP5811 和 LP5810 评估模块 (EVM) 展示了 LP5811 和 LP5810 LED 驱动器的所有特性。LP581XEVM-GUI 用于将 USB2ANY 连接到 EVM。此 EVM 通过 USB2ANY 接口适配器提供 I²C 输入。

用户指南: PDF | HTML
支持的产品和硬件
有库存
限制：
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无货
评估板

LP5813-12WCSPEVM — LP5813/LP5812 具有自动动画控制功能的 4 x 3 LED 矩阵驱动器评估模块

LP5813/12 评估模块展示了 LP5813 和 LP5812 4 × 3 矩阵 RGB LED 驱动器的所有特性。这两个器件之间的区别在于是否具有同步升压功能。LP581x 图形用户界面 (GUI) 用于将 USB2ANY 连接到 EVM。此 EVM 通过 USB2ANY 接口适配器提供 I2C 输入。

用户指南: PDF | HTML
支持的产品和硬件
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评估板

LP5813-12WSONEVM — LP5813 和 LP5812 采用 WSON 封装的评估模块

LP5813 和 LP5812 评估模块 (EVM) 展示了 LP5813 和 LP5812 具有自主控制功能的 4 × 3 矩阵 RGB LED 驱动器的所有特性。这两个器件之间的区别在于是否具有同步升压功能。LP5813 和 LP5812 放置在一个电路板上，请通过 USB2ANY 连接器和跳线设置选择需要评估的器件。称为 LP581x GUI 的图形用户界面（或 GUI）用于通过 USB2ANY 接口适配器将 USB 连接至 EVM。

用户指南: PDF | HTML
支持的产品和硬件
有库存
限制：
??asset.out-of-stock-ti_zh_CN??
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应用软件和框架

LP5813-MSPM0L1306-SW — LP5813 reference code based on MSPM0L1306(LP-MSPM0L1306)

This reference code showcases the ability of the MSPM0L1306 device to communicate with the LP5813 LED driver. The code configures the MCU using CLB to drive the LEDs on the EVM.
支持的产品和硬件
评估模块 (EVM) 用 GUI

LP581XEVM-GUI — 用于 LP581x 系列 LED 驱动器的 GUI

The LP581x-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.
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
WSON (DRR) 12 Ultra Librarian
DSBGA (YBH) 12 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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