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LP5811

現行

具備 I2C 和自動動畫控制的同步升壓 4 通道 RGBW LED 驅動器

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產品規格表

LP5811

現行
產品規格表 立即訂購

產品詳細資料

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
DSBGA (YBH) 12 2.5116 mm² 1.82 x 1.38 WSON (DRR) 12 9 mm² 3 x 3
  • Operating voltage range:
    • Input voltage (V IN) range: 0.5 V to 5.5 V
    • 1.8-V minimum input voltage for start-up
    • Logic pins compatible with 1.8 V, 3.3 V, and 5 V
  • High efficiency synchronous boost converter
    • Output voltage (V OUT) range: 3 V to 5.5 V
    • 140-mΩ (HS) / 60-mΩ (LS) MOSFETs
    • 1.6-A valley switching current limit
    • 95% efficiency at V IN = 4.2 V, V OUT = 5.0 V, I OUT = 300 mA
    • Pass-through mode when VIN > VOUT setting

    • True disconnection between input and output during shutdown

  • 4 constant current sinks with high precision:
    • 0.1-mA to 51-mA per current sink
    • Device-to-device error: max ±5%
    • Channel-to-channel error: max ±5%
    • Ultra-low headroom voltage: 110 mV (typ.) at 25.5 mA; 210 mV (typ.) at 51 mA
    • PWM phase shift configurable for each LED
  • Ultra-low power consumption:
    • Shutdown: I SD = 0.1 µA (typical) when EN = Low
    • Standby: I STB = 26 µA (typical) when EN = High and CHIP_EN = 0 (data retained)
    • Active: I NOR = 0.45 mA (typical) when LED current = 25.5 mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5 mA or 51 mA
    • Individual 8-bit Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 24 kHz
    • 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
  • 1-MHz (max.) I 2C interface
  • –40°C to 85°C operating temperature range
  • Operating voltage range:
    • Input voltage (V IN) range: 0.5 V to 5.5 V
    • 1.8-V minimum input voltage for start-up
    • Logic pins compatible with 1.8 V, 3.3 V, and 5 V
  • High efficiency synchronous boost converter
    • Output voltage (V OUT) range: 3 V to 5.5 V
    • 140-mΩ (HS) / 60-mΩ (LS) MOSFETs
    • 1.6-A valley switching current limit
    • 95% efficiency at V IN = 4.2 V, V OUT = 5.0 V, I OUT = 300 mA
    • Pass-through mode when VIN > VOUT setting

    • True disconnection between input and output during shutdown

  • 4 constant current sinks with high precision:
    • 0.1-mA to 51-mA per current sink
    • Device-to-device error: max ±5%
    • Channel-to-channel error: max ±5%
    • Ultra-low headroom voltage: 110 mV (typ.) at 25.5 mA; 210 mV (typ.) at 51 mA
    • PWM phase shift configurable for each LED
  • Ultra-low power consumption:
    • Shutdown: I SD = 0.1 µA (typical) when EN = Low
    • Standby: I STB = 26 µA (typical) when EN = High and CHIP_EN = 0 (data retained)
    • Active: I NOR = 0.45 mA (typical) when LED current = 25.5 mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5 mA or 51 mA
    • Individual 8-bit Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 24 kHz
    • 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
  • 1-MHz (max.) I 2C 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 ideal to support battery-powered applications with 0.5-V to 5.5-V input voltage range, and it has ultra-low normal operation current with 0.4-mA (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 3 V to 5.5 V with 0.1-V 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 0.1 mA to 25.5 mA or 0.2 mA to 51 mA. 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 6-MHz 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 0.5-V to 5.5-V input voltage range, and it has ultra-low normal operation current with 0.4-mA (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 3 V to 5.5 V with 0.1-V 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 0.1 mA to 25.5 mA or 0.2 mA to 51 mA. 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 6-MHz clock signal and use it for synchronizing the lighting effects among multiple devices.

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* Data sheet LP5811Synchronous Boost4-Channel RGBWLED Driver with Autonomous Control datasheet PDF | HTML 2022年 4月 21日

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開發板

LP5811-10EVM — LP5811 和 LP5810 評估模組

LP5811 和 LP5810 評估模組 (EVM) 展示了 LP5811 和 LP5810 LED 驅動器的所有功能。LP581XEVM-GUI 用於透過 USB2ANY 介接至 EVM。EVM 具有透過 USB2ANY 介面轉接器的 I²C 輸入。

使用指南: PDF | HTML
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開發板

LP5813-12WCSPEVM — 具自動控制功能且適用於 4 x 3 LED 矩陣驅動器的 LP5813/LP5812 評估模組

LP5813/12 評估模組展示 LP5813 和 LP5812 4 × 3 矩陣 RGB LED 驅動器的所有功能。兩個裝置之間的差別在於具有或未具有同步升壓功能。LP581x 圖形使用者介面 (GUI) 用於透過 USB2ANY 介接至 EVM。EVM 具有透過 USB2ANY 介面轉接器的 I2C 輸入。

使用指南: PDF | HTML
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開發板

LP5813-12WSONEVM — 適用於 WSON 封裝的 LP5813 和 LP5812 評估模組

LP5813 和 LP5812 評估模組 (EVM) 展示了具有自主控制功能的 LP5813 和 LP5812 4 × 3 矩陣 RGB LED 驅動器的所有功能。‌兩種產品之間的差別在於是否具有同步升壓功能。LP5813 和 LP5812 都位於在同一塊電路板上，請透過 USB2ANY 連接器和跳線設定選擇需要評估的產品。提供名為 LP581x GUI 的圖形使用者介面或 GUI，可透過 USB2ANY 介面轉接器將 USB 介接至 EVM。

使用指南: PDF | HTML
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開發模組 (EVM) 的 GUI

LP581XEVM-GUI — GUI for LP581x Family LED Drivers

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.
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產品
RGB LED 驅動器
LP5813 — 具備 I2C 和自動動畫控制的 4 x 3 矩陣 RGB LED 驅動器 LP5812 — 具備 I2C 和自動動畫控制的 4 x 3 矩陣 RGB LED 驅動器 LP5811 — 具備 I2C 和自動動畫控制的同步升壓 4 通道 RGBW LED 驅動器 LP5810 — 具備 I2C 和自動動畫控制的 4 通道 RGBW LED 驅動器
硬體開發
開發板
LP5813-12WCSPEVM — 具自動控制功能且適用於 4 x 3 LED 矩陣驅動器的 LP5813/LP5812 評估模組 LP5813-12WSONEVM — 適用於 WSON 封裝的 LP5813 和 LP5812 評估模組 LP5811-10EVM — LP5811 和 LP5810 評估模組
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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